Merge branch 'master' into kimkulling-issue_2656_add_cppcoverall

.github/FUNDING.yml

@@ -1 +1,2 @@
 open_collective: assimp
+patreon: assimp

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,8 +1,8 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: ''
+title: 'Bug:'
-labels: ''
+labels: 'Bug'
 assignees: ''
 
 ---
@@ -23,16 +23,10 @@ A clear and concise description of what you expected to happen.
 **Screenshots**
 If applicable, add screenshots to help explain your problem.
 
-**Desktop (please complete the following information):**
+**Platform (please complete the following information):**
  - OS: [e.g. iOS]
  - Browser [e.g. chrome, safari]
  - Version [e.g. 22]
 
-**Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
-
 **Additional context**
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Suggest an idea for this project
 title: ''
-labels: ''
+labels: 'Feature-Request'
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/tech_debt.md

@@ -0,0 +1,25 @@
+---
+name: Technical debt
+about: Create a report to help us to fix and detect tech debts
+title: ''
+labels: 'Techdebt'
+assignees: ''
+
+---
+
+**Describe the technical debt**
+A clear and concise description of what the tech debt is about.
+
+**Better solution**
+A clear and concise description of what you would expect.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.gitignore

@@ -25,7 +25,7 @@ CMakeSettings.json
 # Output
 bin/
 lib/
-
+x64/
 # QtCreator
 CMakeLists.txt.user
 
@@ -94,6 +94,7 @@ test/gtest/src/gtest-stamp/gtest-gitinfo.txt
 test/gtest/src/gtest-stamp/gtest-gitclone-lastrun.txt
 Assimp.opensdf
 contrib/zlib/CTestTestfile.cmake
+contrib/zlib/Debug/zlibstaticd.pdb
 ipch/assimp_viewer-44bbbcd1/assimp_viewerd-ccc45335.ipch
 bin64/assimp-vc140-mt.dll
 bin64/assimp-vc140-mtd.dll

CMakeLists.txt

@@ -44,16 +44,16 @@ CMAKE_MINIMUM_REQUIRED( VERSION 3.10 )
 option(ASSIMP_HUNTER_ENABLED "Enable Hunter package manager support" OFF)
 
 IF(ASSIMP_HUNTER_ENABLED)
-  include("cmake/HunterGate.cmake")
+  include("cmake-modules/HunterGate.cmake")
   HunterGate(
-    URL "https://github.com/cpp-pm/hunter/archive/v0.23.293.tar.gz"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.23.311.tar.gz"
-    SHA1 "e8e5470652db77149d9b38656db2a6c0b7642693"
+    SHA1 "1a82b9b73055879181cb1466b2ab5d48ee8ae410"
   )
 
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
 
-PROJECT( Assimp VERSION 5.0.1 )
+PROJECT(Assimp VERSION 5.1.0)
 
 # All supported options ###############################################
 
@@ -135,11 +135,11 @@ IF ( WIN32 )
   # Use subset of Windows.h
   ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
 
+  IF(MSVC)
     OPTION ( ASSIMP_BUILD_ASSIMP_VIEW
       "If the Assimp view tool is built. (requires DirectX)"
       OFF )
 
-  IF(MSVC)
     OPTION( ASSIMP_INSTALL_PDB
       "Install MSVC debug files."
       ON )
@@ -267,7 +267,10 @@ ELSEIF(MSVC)
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)	
   ENDIF()
+  ADD_COMPILE_OPTIONS(/wd4244) #supress warning for double to float conversion if Double precission is activated
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
+  SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi")
+  SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG:FULL /PDBALTPATH:%_PDB% /OPT:REF /OPT:ICF")
 ELSEIF (CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
   IF(NOT ASSIMP_HUNTER_ENABLED)
     SET(CMAKE_CXX_STANDARD 11)
@@ -334,9 +337,9 @@ INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)
 
 # Set Assimp project output directory variables.
-SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
+SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for runtime output files")
-SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
+SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for library output files")
-SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
+SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib" CACHE STRING "Path for archive output files")
 
 # Macro used to set the output directories of a target to the
 # respective Assimp output directories.
@@ -395,14 +398,14 @@ set(GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
 
 IF(ASSIMP_HUNTER_ENABLED)
   set(CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}")
-  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake/assimp-hunter-config.cmake.in")
+  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake-modules/assimp-hunter-config.cmake.in")
   set(NAMESPACE "${PROJECT_NAME}::")
   set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
   set(VERSION_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
   set(PROJECT_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}Config.cmake")
 ELSE()
   set(CONFIG_INSTALL_DIR "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
-  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake/assimp-plain-config.cmake.in")
+  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake-modules/assimp-plain-config.cmake.in")
   string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWERCASE)
   set(NAMESPACE "${PROJECT_NAME_LOWERCASE}::")
   set(TARGETS_EXPORT_NAME "${PROJECT_NAME_LOWERCASE}Targets")
@@ -527,12 +530,12 @@ ENDIF()
 MARK_AS_ADVANCED ( ASSIMP_BUILD_ARCHITECTURE ASSIMP_BUILD_COMPILER )
 
 SET ( ASSIMP_BUILD_NONFREE_C4D_IMPORTER OFF CACHE BOOL
-  "Build the C4D importer, which relies on the non-free Melange SDK."
+  "Build the C4D importer, which relies on the non-free Cineware SDK."
 )
 
 IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
   IF ( MSVC )
-    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/includes")
+    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/includes")
 
     # pick the correct prebuilt library
     IF(MSVC15)
@@ -551,22 +554,23 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
       )
     ENDIF()
 
-    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/libraries/win")
+    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/libraries/win")
 
     SET(C4D_DEBUG_LIBRARIES
-      "${C4D_LIB_BASE_PATH}/melangelib${C4D_LIB_POSTFIX}/melangelib_debug.lib"
+      "${C4D_LIB_BASE_PATH}/cinewarelib${C4D_LIB_POSTFIX}/cinewarelib_debug.lib"
       "${C4D_LIB_BASE_PATH}/jpeglib${C4D_LIB_POSTFIX}/jpeglib_debug.lib"
     )
     SET(C4D_RELEASE_LIBRARIES
-      "${C4D_LIB_BASE_PATH}/melangelib${C4D_LIB_POSTFIX}/melangelib_release.lib"
+      "${C4D_LIB_BASE_PATH}/cinewarelib${C4D_LIB_POSTFIX}/cinewarelib_release.lib"
       "${C4D_LIB_BASE_PATH}/jpeglib${C4D_LIB_POSTFIX}/jpeglib_release.lib"
     )
 
-    # winsock and winmm are necessary dependencies of melange (this is undocumented, but true.)
+    # winsock and winmm are necessary (and undocumented) dependencies of Cineware SDK because
+    # it can be used to communicate with a running Cinema 4D instance
     SET(C4D_EXTRA_LIBRARIES WSock32.lib Winmm.lib)
   ELSE ()
     MESSAGE( FATAL_ERROR
-      "C4D is currently only available on Windows with melange SDK installed in contrib/Melange"
+      "C4D is currently only available on Windows with Cineware SDK installed in contrib/Cineware"
     )
   ENDIF ()
 ELSE ()

Readme.md

@@ -42,7 +42,9 @@ Take a look into the https://github.com/assimp/assimp/blob/master/Build.md file.
 * [.NET](https://bitbucket.org/Starnick/assimpnet/src/master/)
 * [Pascal](port/AssimpPascal/Readme.md)
 * [Javascript (Alpha)](https://github.com/makc/assimp2json)
-* [Unity 3d Plugin](https://www.assetstore.unity3d.com/en/#!/content/91777)
+* [Javascript/Node.js Interface](https://github.com/kovacsv/assimpjs)
+* [Unity 3d Plugin](https://ricardoreis.net/trilib-2/)
+* [Unreal Engine Plugin](https://github.com/irajsb/UE4_Assimp/)
 * [JVM](https://github.com/kotlin-graphics/assimp) Full jvm port (current [status](https://github.com/kotlin-graphics/assimp/wiki/Status))
 * [HAXE-Port](https://github.com/longde123/assimp-haxe) The Assimp-HAXE-port.
 * [Rust](https://github.com/jkvargas/russimp)
@@ -68,7 +70,7 @@ The source code is organized in the following way:
 
 	code/Common			The base implementation for importers and the infrastructure
 	code/PostProcessing		The post-processing steps
-	code/<FormatName>	Implementation for import and export for the format
+	code/AssetLib/<FormatName>	Implementation for import and export for the format
 
 ### Where to get help ###
 For more information, visit [our website](http://assimp.org/). Or check out the `./doc`- folder, which contains the official documentation in HTML format.

cmake-modules/FindIrrXML.cmake

@@ -1,17 +0,0 @@
-# Find IrrXMl from irrlicht project
-#
-# Find LibIrrXML headers and library
-#
-#   IRRXML_FOUND          - IrrXML found
-#   IRRXML_INCLUDE_DIR    - Headers location
-#   IRRXML_LIBRARY        - IrrXML main library
-
-find_path(IRRXML_INCLUDE_DIR irrXML.h
-    PATH_SUFFIXES include/irrlicht include/irrxml)
-find_library(IRRXML_LIBRARY IrrXML)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(IrrXML REQUIRED_VARS IRRXML_INCLUDE_DIR IRRXML_LIBRARY)
-
-
-mark_as_advanced(IRRXML_INCLUDE_DIR IRRXML_LIBRARY)

cmake-modules/assimp-hunter-config.cmake.in

@@ -0,0 +1,19 @@
+@PACKAGE_INIT@
+
+find_package(RapidJSON     CONFIG REQUIRED)
+find_package(ZLIB          CONFIG REQUIRED)
+find_package(utf8cpp       CONFIG REQUIRED)
+find_package(minizip       CONFIG REQUIRED)
+find_package(openddlparser CONFIG REQUIRED)
+find_package(poly2tri      CONFIG REQUIRED)
+find_package(polyclipping  CONFIG REQUIRED)
+find_package(zip           CONFIG REQUIRED)
+find_package(pugixml       CONFIG REQUIRED)
+find_package(stb           CONFIG REQUIRED)
+
+if(@ASSIMP_BUILD_DRACO@)
+  find_package(draco CONFIG REQUIRED)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
+check_required_components("@PROJECT_NAME@")

cmake/assimp-hunter-config.cmake.in

@@ -1,18 +0,0 @@
-@PACKAGE_INIT@
-
-find_package(RapidJSON CONFIG REQUIRED)
-find_package(ZLIB CONFIG REQUIRED)
-find_package(utf8cpp CONFIG REQUIRED)
-find_package(minizip CONFIG REQUIRED)
-find_package(openddlparser CONFIG REQUIRED)
-find_package(poly2tri CONFIG REQUIRED)
-find_package(polyclipping CONFIG REQUIRED)
-find_package(zip CONFIG REQUIRED)
-find_package(pugixml CONFIG REQUIRED)
-
-if(@ASSIMP_BUILD_DRACO@)
-  find_package(draco CONFIG REQUIRED)
-endif()
-
-include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
-check_required_components("@PROJECT_NAME@")

code/AssetLib/3DS/3DSConverter.cpp

@@ -68,8 +68,8 @@ void Discreet3DSImporter::ReplaceDefaultMaterial() {
     unsigned int idx(NotSet);
     for (unsigned int i = 0; i < mScene->mMaterials.size(); ++i) {
         std::string s = mScene->mMaterials[i].mName;
-        for (std::string::iterator it = s.begin(); it != s.end(); ++it) {
+        for (char & it : s) {
-            *it = static_cast<char>(::tolower(*it));
+            it = static_cast<char>(::tolower(static_cast<unsigned char>(it)));
         }
 
         if (std::string::npos == s.find("default")) continue;
@@ -79,12 +79,7 @@ void Discreet3DSImporter::ReplaceDefaultMaterial() {
                 mScene->mMaterials[i].mDiffuse.r !=
                         mScene->mMaterials[i].mDiffuse.b) continue;
 
-        if (mScene->mMaterials[i].sTexDiffuse.mMapName.length() != 0 ||
+        if (ContainsTextures(i)) {
-                mScene->mMaterials[i].sTexBump.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexOpacity.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexEmissive.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexSpecular.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexShininess.mMapName.length() != 0) {
             continue;
         }
         idx = i;
@@ -212,7 +207,7 @@ void Discreet3DSImporter::ConvertMaterial(D3DS::Material &oldMat,
         mat.AddProperty(&tex, AI_MATKEY_GLOBAL_BACKGROUND_IMAGE);
 
         // Be sure this is only done for the first material
-        mBackgroundImage = std::string("");
+        mBackgroundImage = std::string();
     }
 
     // At first add the base ambient color of the scene to the material

code/AssetLib/3DS/3DSExporter.cpp

@@ -56,8 +56,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <memory>
 
-using namespace Assimp;
 namespace Assimp {
+
 using namespace D3DS;
 
 namespace {
@@ -102,13 +102,14 @@ private:
 // preserves the mesh's given name if it has one. |index| is the index
 // of the mesh in |aiScene::mMeshes|.
 std::string GetMeshName(const aiMesh &mesh, unsigned int index, const aiNode &node) {
-    static const std::string underscore = "_";
+    static const char underscore = '_';
     char postfix[10] = { 0 };
     ASSIMP_itoa10(postfix, index);
 
     std::string result = node.mName.C_Str();
     if (mesh.mName.length > 0) {
-        result += underscore + mesh.mName.C_Str();
+        result += underscore;
+        result += mesh.mName.C_Str();
     }
     return result + underscore + postfix;
 }
@@ -329,6 +330,7 @@ void Discreet3DSExporter::WriteMaterials() {
             case aiShadingMode_Blinn:
             case aiShadingMode_CookTorrance:
             case aiShadingMode_Fresnel:
+            case aiShadingMode_PBR_BRDF: // Possibly should be Discreet3DS::Metal in some cases but this is undocumented
                 shading_mode_out = Discreet3DS::Phong;
                 break;
 
@@ -355,7 +357,10 @@ void Discreet3DSExporter::WriteMaterials() {
             writer.PutI2(1);
         }
 
-        WriteTexture(mat, aiTextureType_DIFFUSE, Discreet3DS::CHUNK_MAT_TEXTURE);
+        // Fallback to BASE_COLOR if no DIFFUSE
+        if (!WriteTexture(mat, aiTextureType_DIFFUSE, Discreet3DS::CHUNK_MAT_TEXTURE))
+            WriteTexture(mat, aiTextureType_BASE_COLOR, Discreet3DS::CHUNK_MAT_TEXTURE);
+
         WriteTexture(mat, aiTextureType_HEIGHT, Discreet3DS::CHUNK_MAT_BUMPMAP);
         WriteTexture(mat, aiTextureType_OPACITY, Discreet3DS::CHUNK_MAT_OPACMAP);
         WriteTexture(mat, aiTextureType_SHININESS, Discreet3DS::CHUNK_MAT_MAT_SHINMAP);
@@ -366,20 +371,21 @@ void Discreet3DSExporter::WriteMaterials() {
 }
 
 // ------------------------------------------------------------------------------------------------
-void Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type, uint16_t chunk_flags) {
+// returns true if the texture existed
+bool Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type, uint16_t chunk_flags) {
     aiString path;
     aiTextureMapMode map_mode[2] = {
         aiTextureMapMode_Wrap, aiTextureMapMode_Wrap
     };
     ai_real blend = 1.0;
     if (mat.GetTexture(type, 0, &path, nullptr, nullptr, &blend, nullptr, map_mode) != AI_SUCCESS || !path.length) {
-        return;
+        return false;
     }
 
     // TODO: handle embedded textures properly
     if (path.data[0] == '*') {
-        ASSIMP_LOG_ERROR("Ignoring embedded texture for export: " + std::string(path.C_Str()));
+        ASSIMP_LOG_ERROR("Ignoring embedded texture for export: ", path.C_Str());
-        return;
+        return false;
     }
 
     ChunkWriter chunk(writer, chunk_flags);
@@ -401,6 +407,7 @@ void Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type
         writer.PutU2(val);
     }
     // TODO: export texture transformation (i.e. UV offset, scale, rotation)
+    return true;
 }
 
 // ------------------------------------------------------------------------------------------------

code/AssetLib/3DS/3DSExporter.h

@@ -73,7 +73,7 @@ public:
 private:
     void WriteMeshes();
     void WriteMaterials();
-    void WriteTexture(const aiMaterial& mat, aiTextureType type, uint16_t chunk_flags);
+    bool WriteTexture(const aiMaterial& mat, aiTextureType type, uint16_t chunk_flags);
     void WriteFaceMaterialChunk(const aiMesh& mesh);
     int WriteHierarchy(const aiNode& node, int level, int sibling_level);
     void WriteString(const std::string& s);

code/AssetLib/3DS/3DSHelper.h

@@ -53,7 +53,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/light.h>
 #include <assimp/material.h>
 #include <assimp/qnan.h>
-#include <stdio.h> //sprintf
+#include <cstdio> //sprintf
 
 namespace Assimp {
 namespace D3DS {
@@ -61,20 +61,10 @@ namespace D3DS {
 #include <assimp/Compiler/pushpack1.h>
 
 // ---------------------------------------------------------------------------
-/** Discreet3DS class: Helper class for loading 3ds files. Defines chunks
+/** Defines chunks and data structures.
-*  and data structures.
 */
-class Discreet3DS {
+namespace Discreet3DS {
-private:
-    Discreet3DS() AI_NO_EXCEPT {
-        // empty
-    }
 
-    ~Discreet3DS() {
-        // empty
-    }
-
-public:
     //! data structure for a single chunk in a .3ds file
     struct Chunk {
         uint16_t Flag;
@@ -269,7 +259,7 @@ public:
         // Specifies the file name of a texture
         CHUNK_MAPFILE = 0xA300,
 
-        // Specifies whether a materail requires two-sided rendering
+        // Specifies whether a material requires two-sided rendering
         CHUNK_MAT_TWO_SIDE = 0xA081,
         // ********************************************************************
 
@@ -314,7 +304,7 @@ public:
         // camera sub-chunks
         CHUNK_CAM_RANGES = 0x4720
     };
-};
+}
 
 // ---------------------------------------------------------------------------
 /** Helper structure representing a 3ds mesh face */
@@ -358,16 +348,16 @@ struct Texture {
         // empty
     }
 
-    Texture(Texture &&other) AI_NO_EXCEPT : mTextureBlend(std::move(other.mTextureBlend)),
+    Texture(Texture &&other) AI_NO_EXCEPT : mTextureBlend(other.mTextureBlend),
                                             mMapName(std::move(other.mMapName)),
-                                            mOffsetU(std::move(other.mOffsetU)),
+                                            mOffsetU(other.mOffsetU),
-                                            mOffsetV(std::move(other.mOffsetV)),
+                                            mOffsetV(other.mOffsetV),
-                                            mScaleU(std::move(other.mScaleU)),
+                                            mScaleU(other.mScaleU),
-                                            mScaleV(std::move(other.mScaleV)),
+                                            mScaleV(other.mScaleV),
-                                            mRotation(std::move(other.mRotation)),
+                                            mRotation(other.mRotation),
-                                            mMapMode(std::move(other.mMapMode)),
+                                            mMapMode(other.mMapMode),
-                                            bPrivate(std::move(other.bPrivate)),
+                                            bPrivate(other.bPrivate),
-                                            iUVSrc(std::move(other.iUVSrc)) {
+                                            iUVSrc(other.iUVSrc) {
         // empty
     }
 
@@ -376,16 +366,16 @@ struct Texture {
             return *this;
         }
 
-        mTextureBlend = std::move(other.mTextureBlend);
+        mTextureBlend = other.mTextureBlend;
         mMapName = std::move(other.mMapName);
-        mOffsetU = std::move(other.mOffsetU);
+        mOffsetU = other.mOffsetU;
-        mOffsetV = std::move(other.mOffsetV);
+        mOffsetV = other.mOffsetV;
-        mScaleU = std::move(other.mScaleU);
+        mScaleU = other.mScaleU;
-        mScaleV = std::move(other.mScaleV);
+        mScaleV = other.mScaleV;
-        mRotation = std::move(other.mRotation);
+        mRotation = other.mRotation;
-        mMapMode = std::move(other.mMapMode);
+        mMapMode = other.mMapMode;
-        bPrivate = std::move(other.bPrivate);
+        bPrivate = other.bPrivate;
-        iUVSrc = std::move(other.iUVSrc);
+        iUVSrc = other.iUVSrc;
 
         return *this;
     }
@@ -471,13 +461,13 @@ struct Material {
 
     //! Move constructor. This is explicitly written because MSVC doesn't support defaulting it
     Material(Material &&other) AI_NO_EXCEPT : mName(std::move(other.mName)),
-                                              mDiffuse(std::move(other.mDiffuse)),
+                                              mDiffuse(other.mDiffuse),
-                                              mSpecularExponent(std::move(other.mSpecularExponent)),
+                                              mSpecularExponent(other.mSpecularExponent),
-                                              mShininessStrength(std::move(other.mShininessStrength)),
+                                              mShininessStrength(other.mShininessStrength),
-                                              mSpecular(std::move(other.mSpecular)),
+                                              mSpecular(other.mSpecular),
-                                              mAmbient(std::move(other.mAmbient)),
+                                              mAmbient(other.mAmbient),
-                                              mShading(std::move(other.mShading)),
+                                              mShading(other.mShading),
-                                              mTransparency(std::move(other.mTransparency)),
+                                              mTransparency(other.mTransparency),
                                               sTexDiffuse(std::move(other.sTexDiffuse)),
                                               sTexOpacity(std::move(other.sTexOpacity)),
                                               sTexSpecular(std::move(other.sTexSpecular)),
@@ -485,10 +475,10 @@ struct Material {
                                               sTexBump(std::move(other.sTexBump)),
                                               sTexEmissive(std::move(other.sTexEmissive)),
                                               sTexShininess(std::move(other.sTexShininess)),
-                                              mBumpHeight(std::move(other.mBumpHeight)),
+                                              mBumpHeight(other.mBumpHeight),
-                                              mEmissive(std::move(other.mEmissive)),
+                                              mEmissive(other.mEmissive),
                                               sTexAmbient(std::move(other.sTexAmbient)),
-                                              mTwoSided(std::move(other.mTwoSided)) {
+                                              mTwoSided(other.mTwoSided) {
         // empty
     }
 
@@ -498,13 +488,13 @@ struct Material {
         }
 
         mName = std::move(other.mName);
-        mDiffuse = std::move(other.mDiffuse);
+        mDiffuse = other.mDiffuse;
-        mSpecularExponent = std::move(other.mSpecularExponent);
+        mSpecularExponent = other.mSpecularExponent;
-        mShininessStrength = std::move(other.mShininessStrength),
+        mShininessStrength = other.mShininessStrength,
-        mSpecular = std::move(other.mSpecular);
+        mSpecular = other.mSpecular;
-        mAmbient = std::move(other.mAmbient);
+        mAmbient = other.mAmbient;
-        mShading = std::move(other.mShading);
+        mShading = other.mShading;
-        mTransparency = std::move(other.mTransparency);
+        mTransparency = other.mTransparency;
         sTexDiffuse = std::move(other.sTexDiffuse);
         sTexOpacity = std::move(other.sTexOpacity);
         sTexSpecular = std::move(other.sTexSpecular);
@@ -512,10 +502,10 @@ struct Material {
         sTexBump = std::move(other.sTexBump);
         sTexEmissive = std::move(other.sTexEmissive);
         sTexShininess = std::move(other.sTexShininess);
-        mBumpHeight = std::move(other.mBumpHeight);
+        mBumpHeight = other.mBumpHeight;
-        mEmissive = std::move(other.mEmissive);
+        mEmissive = other.mEmissive;
         sTexAmbient = std::move(other.sTexAmbient);
-        mTwoSided = std::move(other.mTwoSided);
+        mTwoSided = other.mTwoSided;
 
         return *this;
     }

code/AssetLib/3DS/3DSLoader.cpp

@@ -143,7 +143,13 @@ void Discreet3DSImporter::SetupProperties(const Importer * /*pImp*/) {
 // Imports the given file into the given scene structure.
 void Discreet3DSImporter::InternReadFile(const std::string &pFile,
         aiScene *pScene, IOSystem *pIOHandler) {
-    StreamReaderLE theStream(pIOHandler->Open(pFile, "rb"));
+
+    auto theFile = pIOHandler->Open(pFile, "rb");
+    if (!theFile) {
+        throw DeadlyImportError("3DS: Could not open ", pFile);
+    }
+
+    StreamReaderLE theStream(theFile);
 
     // We should have at least one chunk
     if (theStream.GetRemainingSize() < 16) {
@@ -164,7 +170,7 @@ void Discreet3DSImporter::InternReadFile(const std::string &pFile,
     mRootNode->mHierarchyIndex = -1;
     mRootNode->mParent = nullptr;
     mMasterScale = 1.0f;
-    mBackgroundImage = "";
+    mBackgroundImage = std::string();
     bHasBG = false;
     bIsPrj = false;
 
@@ -299,7 +305,7 @@ void Discreet3DSImporter::ParseEditorChunk() {
         // print the version number
         char buff[10];
         ASSIMP_itoa10(buff, stream->GetI2());
-        ASSIMP_LOG_INFO_F(std::string("3DS file format version: "), buff);
+        ASSIMP_LOG_INFO("3DS file format version: ", buff);
     } break;
     };
     ASSIMP_3DS_END_CHUNK();
@@ -443,7 +449,7 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
         // Read the lense angle
         camera->mHorizontalFOV = AI_DEG_TO_RAD(stream->GetF4());
         if (camera->mHorizontalFOV < 0.001f) {
-            camera->mHorizontalFOV = AI_DEG_TO_RAD(45.f);
+            camera->mHorizontalFOV = float(AI_DEG_TO_RAD(45.f));
         }
 
         // Now check for further subchunks
@@ -928,7 +934,7 @@ void Discreet3DSImporter::ParseFaceChunk() {
             }
         }
         if (0xcdcdcdcd == idx) {
-            ASSIMP_LOG_ERROR_F("3DS: Unknown material: ", sz);
+            ASSIMP_LOG_ERROR("3DS: Unknown material: ", sz);
         }
 
         // Now continue and read all material indices
@@ -981,9 +987,9 @@ void Discreet3DSImporter::ParseMeshChunk() {
         mMesh.mMat.a3 = stream->GetF4();
         mMesh.mMat.b3 = stream->GetF4();
         mMesh.mMat.c3 = stream->GetF4();
-        mMesh.mMat.d1 = stream->GetF4();
+        mMesh.mMat.a4 = stream->GetF4();
-        mMesh.mMat.d2 = stream->GetF4();
+        mMesh.mMat.b4 = stream->GetF4();
-        mMesh.mMat.d3 = stream->GetF4();
+        mMesh.mMat.c4 = stream->GetF4();
     } break;
 
     case Discreet3DS::CHUNK_MAPLIST: {

code/AssetLib/3DS/3DSLoader.h

@@ -46,11 +46,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef AI_3DSIMPORTER_H_INC
 #define AI_3DSIMPORTER_H_INC
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 #include <assimp/BaseImporter.h>
 #include <assimp/types.h>
 
-#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 #include "3DSHelper.h"
 #include <assimp/StreamReader.h>
@@ -75,14 +75,14 @@ public:
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
      * The function is a request to the importer to update its configuration
      * basing on the Importer's configuration property list.
      */
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer* pImp) override;
 
 protected:
 
@@ -90,14 +90,14 @@ protected:
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc* GetInfo () const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
      * See BaseImporter::InternReadFile() for details
      */
     void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
+        IOSystem* pIOHandler) override;
 
     // -------------------------------------------------------------------
     /** Converts a temporary material to the outer representation
@@ -208,6 +208,15 @@ protected:
     */
     void ReplaceDefaultMaterial();
 
+    bool ContainsTextures(unsigned int i) const {
+        return !mScene->mMaterials[i].sTexDiffuse.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexBump.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexOpacity.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexEmissive.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexSpecular.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexShininess.mMapName.empty() ;
+    }
+
     // -------------------------------------------------------------------
     /** Convert the whole scene
     */

code/AssetLib/3MF/3MFTypes.h

@@ -0,0 +1,165 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2021, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <assimp/vector3.h>
+#include <assimp/matrix4x4.h>
+#include <assimp/ParsingUtils.h>
+#include <vector>
+#include <string>
+
+struct aiMaterial;
+struct aiMesh;
+
+namespace Assimp {
+namespace D3MF {
+
+enum class ResourceType {
+    RT_Object,
+    RT_BaseMaterials,
+    RT_EmbeddedTexture2D,
+    RT_Texture2DGroup,
+    RT_Unknown
+}; // To be extended with other resource types (eg. material extension resources like Texture2d, Texture2dGroup...)
+
+class Resource {
+public:
+    int mId;
+
+    Resource(int id) :
+            mId(id) {
+        // empty
+    }
+
+    virtual ~Resource() {
+        // empty
+    }
+
+    virtual ResourceType getType() const {
+        return ResourceType::RT_Unknown;
+    }
+};
+
+class EmbeddedTexture : public Resource {
+public:
+    std::string mPath;
+    std::string mContentType;
+    std::string mTilestyleU;
+    std::string mTilestyleV;
+    std::vector<char> mBuffer;
+
+    EmbeddedTexture(int id) :
+            Resource(id),
+            mPath(),
+            mContentType(),
+            mTilestyleU(),
+            mTilestyleV() {
+        // empty
+    }
+
+    ~EmbeddedTexture() = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_EmbeddedTexture2D;
+    }
+};
+
+class Texture2DGroup : public Resource {
+public:
+    std::vector<aiVector2D> mTex2dCoords;
+    int mTexId;
+    Texture2DGroup(int id) :
+            Resource(id),
+            mTexId(-1) {
+        // empty
+    }
+
+    ~Texture2DGroup() = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_Texture2DGroup;
+    }
+};
+
+class BaseMaterials : public Resource {
+public:
+    std::vector<unsigned int> mMaterialIndex;
+
+    BaseMaterials(int id) :
+            Resource(id),
+            mMaterialIndex() {
+        // empty
+    }
+
+    ~BaseMaterials() = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_BaseMaterials;
+    }
+};
+
+struct Component {
+    int mObjectId;
+    aiMatrix4x4 mTransformation;
+};
+
+class Object : public Resource {
+public:
+    std::vector<aiMesh *> mMeshes;
+    std::vector<unsigned int> mMeshIndex;
+    std::vector<Component> mComponents;
+    std::string mName;
+
+    Object(int id) :
+            Resource(id),
+            mName(std::string("Object_") + ai_to_string(id)) {
+        // empty
+    }
+
+    ~Object() = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_Object;
+    }
+};
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/3MF/3MFXmlTags.h

@@ -44,62 +44,73 @@ namespace Assimp {
 namespace D3MF {
 
 namespace XmlTag {
+    // Root tag
+    const char* const RootTag = "3MF";
+
     // Meta-data
-    static const std::string meta = "metadata";
+    const char* const meta = "metadata";
-    static const std::string meta_name = "name";
+    const char* const meta_name = "name";
 
     // Model-data specific tags
-    static const std::string model = "model";
+    const char* const model = "model";
-    static const std::string model_unit = "unit";
+    const char* const model_unit = "unit";
-    static const std::string metadata = "metadata";
+    const char* const metadata = "metadata";
-    static const std::string resources = "resources";
+    const char* const resources = "resources";
-    static const std::string object = "object";
+    const char* const object = "object";
-    static const std::string mesh = "mesh";
+    const char* const mesh = "mesh";
-    static const std::string components = "components";
+    const char* const components = "components";
-    static const std::string component = "component";
+    const char* const component = "component";
-    static const std::string vertices = "vertices";
+    const char* const vertices = "vertices";
-    static const std::string vertex = "vertex";
+    const char* const vertex = "vertex";
-    static const std::string triangles = "triangles";
+    const char* const triangles = "triangles";
-    static const std::string triangle = "triangle";
+    const char* const triangle = "triangle";
-    static const std::string x = "x";
+    const char* const x = "x";
-    static const std::string y = "y";
+    const char* const y = "y";
-    static const std::string z = "z";
+    const char* const z = "z";
-    static const std::string v1 = "v1";
+    const char* const v1 = "v1";
-    static const std::string v2 = "v2";
+    const char* const v2 = "v2";
-    static const std::string v3 = "v3";
+    const char* const v3 = "v3";
-    static const std::string id = "id";
+    const char* const id = "id";
-    static const std::string pid = "pid";
+    const char* const pid = "pid";
-    static const std::string pindex = "pindex";
+    const char* const pindex = "pindex";
-    static const std::string p1 = "p1";
+    const char* const p1 = "p1";
-    static const std::string name = "name";
+    const char* const name = "name";
-    static const std::string type = "type";
+    const char* const type = "type";
-    static const std::string build = "build";
+    const char* const build = "build";
-    static const std::string item = "item";
+    const char* const item = "item";
-    static const std::string objectid = "objectid";
+    const char* const objectid = "objectid";
-    static const std::string transform = "transform";
+    const char* const transform = "transform";
+    const char *const path = "path";
 
     // Material definitions
-    static const std::string basematerials = "basematerials";
+    const char* const basematerials = "basematerials";
-    static const std::string basematerials_id = "id";
+    const char* const basematerials_base = "base";
-    static const std::string basematerials_base = "base";
+    const char* const basematerials_name = "name";
-    static const std::string basematerials_name = "name";
+    const char* const basematerials_displaycolor = "displaycolor";
-    static const std::string basematerials_displaycolor = "displaycolor";
+    const char* const texture_2d = "m:texture2d";
+    const char *const texture_group = "m:texture2dgroup";
+    const char *const texture_content_type = "contenttype";
+    const char *const texture_tilestyleu = "tilestyleu";
+    const char *const texture_tilestylev = "tilestylev";
+    const char *const texture_2d_coord = "m:tex2coord";
+    const char *const texture_cuurd_u = "u";
+    const char *const texture_cuurd_v = "v";
 
     // Meta info tags
-    static const std::string CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
+    const char* const CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
-    static const std::string ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";
+    const char* const ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";
-    static const std::string SCHEMA_CONTENTTYPES = "http://schemas.openxmlformats.org/package/2006/content-types";
+    const char* const SCHEMA_CONTENTTYPES = "http://schemas.openxmlformats.org/package/2006/content-types";
-    static const std::string SCHEMA_RELATIONSHIPS = "http://schemas.openxmlformats.org/package/2006/relationships";
+    const char* const SCHEMA_RELATIONSHIPS = "http://schemas.openxmlformats.org/package/2006/relationships";
-    static const std::string RELS_RELATIONSHIP_CONTAINER = "Relationships";
+    const char* const RELS_RELATIONSHIP_CONTAINER = "Relationships";
-    static const std::string RELS_RELATIONSHIP_NODE = "Relationship";
+    const char* const RELS_RELATIONSHIP_NODE = "Relationship";
-    static const std::string RELS_ATTRIB_TARGET = "Target";
+    const char* const RELS_ATTRIB_TARGET = "Target";
-    static const std::string RELS_ATTRIB_TYPE = "Type";
+    const char* const RELS_ATTRIB_TYPE = "Type";
-    static const std::string RELS_ATTRIB_ID = "Id";
+    const char* const RELS_ATTRIB_ID = "Id";
-    static const std::string PACKAGE_START_PART_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel";
+    const char* const PACKAGE_START_PART_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel";
-    static const std::string PACKAGE_PRINT_TICKET_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/printticket";
+    const char* const PACKAGE_PRINT_TICKET_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/printticket";
-    static const std::string PACKAGE_TEXTURE_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture";
+    const char* const PACKAGE_TEXTURE_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture";
-    static const std::string PACKAGE_CORE_PROPERTIES_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
+    const char* const PACKAGE_CORE_PROPERTIES_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
-    static const std::string PACKAGE_THUMBNAIL_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
+    const char* const PACKAGE_THUMBNAIL_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
 }
 
 } // Namespace D3MF

code/AssetLib/3MF/D3MFExporter.cpp

@@ -307,18 +307,26 @@ void D3MFExporter::writeMesh(aiMesh *mesh) {
         return;
     }
 
-    mModelOutput << "<" << XmlTag::mesh << ">" << std::endl;
+    mModelOutput << "<"
-    mModelOutput << "<" << XmlTag::vertices << ">" << std::endl;
+                 << XmlTag::mesh
+                 << ">" << "\n";
+    mModelOutput << "<"
+                 << XmlTag::vertices
+                 << ">" << "\n";
     for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
         writeVertex(mesh->mVertices[i]);
     }
-    mModelOutput << "</" << XmlTag::vertices << ">" << std::endl;
+    mModelOutput << "</"
+                 << XmlTag::vertices << ">"
+                 << "\n";
 
     const unsigned int matIdx(mesh->mMaterialIndex);
 
     writeFaces(mesh, matIdx);
 
-    mModelOutput << "</" << XmlTag::mesh << ">" << std::endl;
+    mModelOutput << "</"
+                 << XmlTag::mesh << ">"
+                 << "\n";
 }
 
 void D3MFExporter::writeVertex(const aiVector3D &pos) {
@@ -334,27 +342,34 @@ void D3MFExporter::writeFaces(aiMesh *mesh, unsigned int matIdx) {
     if (!mesh->HasFaces()) {
         return;
     }
-    mModelOutput << "<" << XmlTag::triangles << ">" << std::endl;
+    mModelOutput << "<"
+                 << XmlTag::triangles << ">"
+                 << "\n";
     for (unsigned int i = 0; i < mesh->mNumFaces; ++i) {
         aiFace &currentFace = mesh->mFaces[i];
         mModelOutput << "<" << XmlTag::triangle << " v1=\"" << currentFace.mIndices[0] << "\" v2=\""
                      << currentFace.mIndices[1] << "\" v3=\"" << currentFace.mIndices[2]
                      << "\" pid=\"1\" p1=\"" + ai_to_string(matIdx) + "\" />";
-        mModelOutput << std::endl;
+        mModelOutput << "\n";
     }
-    mModelOutput << "</" << XmlTag::triangles << ">";
+    mModelOutput << "</"
-    mModelOutput << std::endl;
+                 << XmlTag::triangles
+                 << ">";
+    mModelOutput << "\n";
 }
 
 void D3MFExporter::writeBuild() {
-    mModelOutput << "<" << XmlTag::build << ">" << std::endl;
+    mModelOutput << "<"
+                 << XmlTag::build
+                 << ">"
+                 << "\n";
 
     for (size_t i = 0; i < mBuildItems.size(); ++i) {
         mModelOutput << "<" << XmlTag::item << " objectid=\"" << i + 2 << "\"/>";
-        mModelOutput << std::endl;
+        mModelOutput << "\n";
     }
     mModelOutput << "</" << XmlTag::build << ">";
-    mModelOutput << std::endl;
+    mModelOutput << "\n";
 }
 
 void D3MFExporter::zipContentType(const std::string &filename) {

code/AssetLib/3MF/D3MFExporter.h

@@ -40,6 +40,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #pragma once
 
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
+
 #include <memory>
 #include <sstream>
 #include <vector>
@@ -58,8 +61,6 @@ class IOStream;
 
 namespace D3MF {
 
-#ifndef ASSIMP_BUILD_NO_EXPORT
-#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
 
 struct OpcPackageRelationship;
 
@@ -100,9 +101,11 @@ private:
     std::vector<OpcPackageRelationship*> mRelations;
 };
 
-#endif // ASSIMP_BUILD_NO_3MF_EXPORTER
-#endif // ASSIMP_BUILD_NO_EXPORT
 
 } // Namespace D3MF
 } // Namespace Assimp
 
+#endif // ASSIMP_BUILD_NO_3MF_EXPORTER
+#endif // ASSIMP_BUILD_NO_EXPORT
+
+

code/AssetLib/3MF/D3MFImporter.cpp

@@ -42,6 +42,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
 
 #include "D3MFImporter.h"
+#include "3MFXmlTags.h"
+#include "D3MFOpcPackage.h"
+#include "XmlSerializer.h"
 
 #include <assimp/StringComparison.h>
 #include <assimp/StringUtils.h>
@@ -51,517 +54,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/scene.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOSystem.hpp>
+#include <assimp/fast_atof.h>
+
 #include <cassert>
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
-
-#include "3MFXmlTags.h"
-#include "D3MFOpcPackage.h"
-#include <assimp/fast_atof.h>
-
 #include <iomanip>
+#include <cstring>
 
 namespace Assimp {
-namespace D3MF {
 
-enum class ResourceType {
+using namespace D3MF;
-    RT_Object,
-    RT_BaseMaterials,
-    RT_Unknown
-}; // To be extended with other resource types (eg. material extension resources like Texture2d, Texture2dGroup...)
-
-class Resource
-{
-public:
-    Resource(int id) :
-            mId(id) {}
-
-    virtual ~Resource() {}
-
-    int mId;
-
-    virtual ResourceType getType() {
-        return ResourceType::RT_Unknown;
-    }
-};
-
-class BaseMaterials : public Resource {
-public:
-    BaseMaterials(int id) :
-            Resource(id),
-            mMaterials(),
-            mMaterialIndex() {}
-
-    std::vector<aiMaterial *> mMaterials;
-    std::vector<unsigned int> mMaterialIndex;
-
-    virtual ResourceType getType() {
-        return ResourceType::RT_BaseMaterials;
-    }
-};
-
-struct Component {
-    int mObjectId;
-    aiMatrix4x4 mTransformation;
-};
-
-class Object : public Resource {
-public:
-    std::vector<aiMesh*> mMeshes;
-    std::vector<unsigned int> mMeshIndex;
-    std::vector<Component> mComponents;
-    std::string mName;
-
-    Object(int id) :
-            Resource(id),
-            mName(std::string("Object_") + ai_to_string(id)) {}
-
-    virtual ResourceType getType() {
-        return ResourceType::RT_Object;
-    }
-};
-
-
-class XmlSerializer {
-public:
-
-    XmlSerializer(XmlParser *xmlParser) :
-            mResourcesDictionnary(),
-            mMaterialCount(0),
-            mMeshCount(0),
-            mXmlParser(xmlParser) {
-        // empty
-    }
-
-    ~XmlSerializer() {
-        for (auto it = mResourcesDictionnary.begin(); it != mResourcesDictionnary.end(); it++) {
-            delete it->second;
-        }
-    }
-
-    void ImportXml(aiScene *scene) {
-        if (nullptr == scene) {
-            return;
-        }
-
-        scene->mRootNode = new aiNode("3MF");
-
-        XmlNode node = mXmlParser->getRootNode().child("model");
-        if (node.empty()) {
-            return;
-        }
-        XmlNode resNode = node.child("resources");
-        for (XmlNode currentNode = resNode.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentNodeName = currentNode.name();
-            if (currentNodeName == D3MF::XmlTag::object) {
-                ReadObject(currentNode);;
-            } else if (currentNodeName == D3MF::XmlTag::basematerials) {
-                ReadBaseMaterials(currentNode);
-            } else if (currentNodeName == D3MF::XmlTag::meta) {
-                ReadMetadata(currentNode);
-            }
-        }
-
-        XmlNode buildNode = node.child("build");
-        for (XmlNode currentNode = buildNode.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentNodeName = currentNode.name();
-            if (currentNodeName == D3MF::XmlTag::item) {
-                int objectId = -1;
-                std::string transformationMatrixStr;
-                aiMatrix4x4 transformationMatrix;
-                getNodeAttribute(currentNode, D3MF::XmlTag::objectid, objectId);
-                bool hasTransform = getNodeAttribute(currentNode, D3MF::XmlTag::transform, transformationMatrixStr);
-
-                auto it = mResourcesDictionnary.find(objectId);
-                if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
-                    Object *obj = static_cast<Object *>(it->second);
-                    if (hasTransform) {
-                        transformationMatrix = parseTransformMatrix(transformationMatrixStr);
-                    }
-
-                    addObjectToNode(scene->mRootNode, obj, transformationMatrix);
-                }
-            }
-        }
-
-
-        // import the metadata
-        if (!mMetaData.empty()) {
-            const size_t numMeta(mMetaData.size());
-            scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
-            for (size_t i = 0; i < numMeta; ++i) {
-                aiString val(mMetaData[i].value);
-                scene->mMetaData->Set(static_cast<unsigned int>(i), mMetaData[i].name, val);
-            }
-        }
-
-        // import the meshes
-        scene->mNumMeshes = static_cast<unsigned int>(mMeshCount);
-        if (scene->mNumMeshes != 0) {
-            scene->mMeshes = new aiMesh *[scene->mNumMeshes]();
-            for (auto it = mResourcesDictionnary.begin(); it != mResourcesDictionnary.end(); it++) {
-                if (it->second->getType() == ResourceType::RT_Object) {
-                    Object *obj = static_cast<Object*>(it->second);
-                    for (unsigned int i = 0; i < obj->mMeshes.size(); ++i) {
-                        scene->mMeshes[obj->mMeshIndex[i]] = obj->mMeshes[i];
-                    }
-                }
-            }
-        }
-        
-
-        // import the materials
-        scene->mNumMaterials = static_cast<unsigned int>(mMaterialCount);
-        if (scene->mNumMaterials != 0) {
-            scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
-            for (auto it = mResourcesDictionnary.begin(); it != mResourcesDictionnary.end(); it++) {
-                if (it->second->getType() == ResourceType::RT_BaseMaterials) {
-                    BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
-                    for (unsigned int i = 0; i < baseMaterials->mMaterials.size(); ++i) {
-                        scene->mMaterials[baseMaterials->mMaterialIndex[i]] = baseMaterials->mMaterials[i];
-                    }
-                }
-            }
-        }
-    }
-
-private:
-
-    void addObjectToNode(aiNode* parent, Object* obj, aiMatrix4x4 nodeTransform) {
-        aiNode *sceneNode = new aiNode(obj->mName);
-        sceneNode->mNumMeshes = static_cast<unsigned int>(obj->mMeshes.size());
-        sceneNode->mMeshes = new unsigned int[sceneNode->mNumMeshes];
-        std::copy(obj->mMeshIndex.begin(), obj->mMeshIndex.end(), sceneNode->mMeshes);
-
-        sceneNode->mTransformation = nodeTransform;
-
-        parent->addChildren(1, &sceneNode);
-
-        for (size_t i = 0; i < obj->mComponents.size(); ++i) {
-            Component c = obj->mComponents[i];
-            auto it = mResourcesDictionnary.find(c.mObjectId);
-            if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
-                addObjectToNode(sceneNode, static_cast<Object*>(it->second), c.mTransformation);
-            }
-            
-        }
-    }
-
-    bool getNodeAttribute(const XmlNode& node, const std::string& attribute, std::string& value) {
-        pugi::xml_attribute objectAttribute = node.attribute(attribute.c_str());
-        if (!objectAttribute.empty()) {
-            value = objectAttribute.as_string();
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-    bool getNodeAttribute(const XmlNode &node, const std::string &attribute, int &value) {
-        std::string strValue;
-        bool ret = getNodeAttribute(node, attribute, strValue);
-        if (ret) {
-            value = std::atoi(strValue.c_str());
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-    aiMatrix4x4 parseTransformMatrix(std::string matrixStr) {
-        // split the string
-        std::vector<float> numbers;
-        std::string currentNumber;
-        for (size_t i = 0; i < matrixStr.size(); ++i) {
-            const char c = matrixStr[i];
-            if (c == ' ') {
-                if (currentNumber.size() > 0) {
-                    float f = std::stof(currentNumber);
-                    numbers.push_back(f);
-                    currentNumber.clear();
-                }
-            } else {
-                currentNumber.push_back(c);
-            }
-        }
-        if (currentNumber.size() > 0) {
-            float f = std::stof(currentNumber);
-            numbers.push_back(f);
-        }
-
-        aiMatrix4x4 transformMatrix;
-        transformMatrix.a1 = numbers[0];
-        transformMatrix.b1 = numbers[1];
-        transformMatrix.c1 = numbers[2];
-        transformMatrix.d1 = 0;
-
-        transformMatrix.a2 = numbers[3];
-        transformMatrix.b2 = numbers[4];
-        transformMatrix.c2 = numbers[5];
-        transformMatrix.d2 = 0;
-
-        transformMatrix.a3 = numbers[6];
-        transformMatrix.b3 = numbers[7];
-        transformMatrix.c3 = numbers[8];
-        transformMatrix.d3 = 0;
-
-        transformMatrix.a4 = numbers[9];
-        transformMatrix.b4 = numbers[10];
-        transformMatrix.c4 = numbers[11];
-        transformMatrix.d4 = 1;
-        return transformMatrix;
-    }
-
-    void ReadObject(XmlNode &node) {
-        int id = -1, pid = -1, pindex = -1;
-        bool hasId = getNodeAttribute(node, D3MF::XmlTag::id, id);
-        //bool hasType = getNodeAttribute(node, D3MF::XmlTag::type, type); not used currently
-        bool hasPid = getNodeAttribute(node, D3MF::XmlTag::pid, pid);
-        bool hasPindex = getNodeAttribute(node, D3MF::XmlTag::pindex, pindex);
-
-        std::string idStr = ai_to_string(id);
-
-        if (!hasId) {
-            return;
-        }
-
-        Object *obj = new Object(id);
-
-        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::mesh) {
-                auto mesh = ReadMesh(currentNode);
-                mesh->mName.Set(idStr);
-
-                if (hasPid) {
-                    auto it = mResourcesDictionnary.find(pid);
-                    if (hasPindex && it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_BaseMaterials) {
-                        BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
-                        mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
-                    }
-                }
-
-                obj->mMeshes.push_back(mesh);
-                obj->mMeshIndex.push_back(mMeshCount);
-                mMeshCount++;
-            } else if (currentName == D3MF::XmlTag::components) {
-                for (XmlNode currentSubNode = currentNode.first_child(); currentSubNode; currentSubNode = currentSubNode.next_sibling()) {
-                    if (currentSubNode.name() == D3MF::XmlTag::component) {
-                        int objectId = -1;
-                        std::string componentTransformStr;
-                        aiMatrix4x4 componentTransform;
-                        if (getNodeAttribute(currentSubNode, D3MF::XmlTag::transform, componentTransformStr)) {
-                            componentTransform = parseTransformMatrix(componentTransformStr);
-                        }
-
-                        if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId))
-                            obj->mComponents.push_back({ objectId, componentTransform });
-                    }
-                }
-            }
-        }
-
-        mResourcesDictionnary.insert(std::make_pair(id, obj));
-    }
-
-    aiMesh *ReadMesh(XmlNode &node) {
-        aiMesh *mesh = new aiMesh();
-
-        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::vertices) {
-                ImportVertices(currentNode, mesh);
-            } else if (currentName == D3MF::XmlTag::triangles) {
-                ImportTriangles(currentNode, mesh);
-            }
-
-        }
-
-        return mesh;
-    }
-
-    void ReadMetadata(XmlNode &node) {
-        pugi::xml_attribute attribute = node.attribute(D3MF::XmlTag::meta_name.c_str());
-        const std::string name = attribute.as_string();
-        const std::string value = node.value();
-        if (name.empty()) {
-            return;
-        }
-
-        MetaEntry entry;
-        entry.name = name;
-        entry.value = value;
-        mMetaData.push_back(entry);
-    }
-
-    void ImportVertices(XmlNode &node, aiMesh *mesh) {
-        std::vector<aiVector3D> vertices;
-        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::vertex) {
-                vertices.push_back(ReadVertex(currentNode));
-            }
-        }
-
-        mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
-        mesh->mVertices = new aiVector3D[mesh->mNumVertices];
-        std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
-    }
-
-    aiVector3D ReadVertex(XmlNode &node) {
-        aiVector3D vertex;
-        vertex.x = ai_strtof(node.attribute(D3MF::XmlTag::x.c_str()).as_string(), nullptr);
-        vertex.y = ai_strtof(node.attribute(D3MF::XmlTag::y.c_str()).as_string(), nullptr);
-        vertex.z = ai_strtof(node.attribute(D3MF::XmlTag::z.c_str()).as_string(), nullptr);
-
-        return vertex;
-    }
-
-    void ImportTriangles(XmlNode &node, aiMesh *mesh) {
-        std::vector<aiFace> faces;
-        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::triangle) {
-                aiFace face = ReadTriangle(currentNode);
-                faces.push_back(face);
-
-                int pid = 0, p1;
-                bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
-                bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
-
-                if (hasPid && hasP1) {
-                    auto it = mResourcesDictionnary.find(pid);
-                    if (it != mResourcesDictionnary.end())
-                    {
-                        if (it->second->getType() == ResourceType::RT_BaseMaterials) {
-                            BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
-                            mesh->mMaterialIndex = baseMaterials->mMaterialIndex[p1];
-                        }
-                        // TODO: manage the separation into several meshes if the triangles of the mesh do not all refer to the same material
-                    }
-                }
-            }
-        }
-
-        mesh->mNumFaces = static_cast<unsigned int>(faces.size());
-        mesh->mFaces = new aiFace[mesh->mNumFaces];
-        mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
-
-        std::copy(faces.begin(), faces.end(), mesh->mFaces);
-    }
-
-    aiFace ReadTriangle(XmlNode &node) {
-        aiFace face;
-
-        face.mNumIndices = 3;
-        face.mIndices = new unsigned int[face.mNumIndices];
-        face.mIndices[0] = static_cast<unsigned int>(std::atoi(node.attribute(D3MF::XmlTag::v1.c_str()).as_string()));
-        face.mIndices[1] = static_cast<unsigned int>(std::atoi(node.attribute(D3MF::XmlTag::v2.c_str()).as_string()));
-        face.mIndices[2] = static_cast<unsigned int>(std::atoi(node.attribute(D3MF::XmlTag::v3.c_str()).as_string()));
-
-        return face;
-    }
-
-    void ReadBaseMaterials(XmlNode &node) {
-        int id = -1;
-        if (getNodeAttribute(node, D3MF::XmlTag::basematerials_id, id)) {
-            BaseMaterials* baseMaterials = new BaseMaterials(id);
-
-            for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling())
-            {
-                if (currentNode.name() == D3MF::XmlTag::basematerials_base) {
-                    baseMaterials->mMaterialIndex.push_back(mMaterialCount);
-                    baseMaterials->mMaterials.push_back(readMaterialDef(currentNode, id));
-                    mMaterialCount++;
-                }
-            }
-
-            mResourcesDictionnary.insert(std::make_pair(id, baseMaterials));
-        }
-    }
-
-    bool parseColor(const char *color, aiColor4D &diffuse) {
-        if (nullptr == color) {
-            return false;
-        }
-
-        //format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
-        const size_t len(strlen(color));
-        if (9 != len && 7 != len) {
-            return false;
-        }
-
-        const char *buf(color);
-        if ('#' != buf[0]) {
-            return false;
-        }
-
-        char r[3] = { buf[1], buf[2], '\0' };
-        diffuse.r = static_cast<ai_real>(strtol(r, nullptr, 16)) / ai_real(255.0);
-
-        char g[3] = { buf[3], buf[4], '\0' };
-        diffuse.g = static_cast<ai_real>(strtol(g, nullptr, 16)) / ai_real(255.0);
-
-        char b[3] = { buf[5], buf[6], '\0' };
-        diffuse.b = static_cast<ai_real>(strtol(b, nullptr, 16)) / ai_real(255.0);
-
-        if (7 == len)
-            return true;
-
-        char a[3] = { buf[7], buf[8], '\0' };
-        diffuse.a = static_cast<ai_real>(strtol(a, nullptr, 16)) / ai_real(255.0);
-
-        return true;
-    }
-
-    void assignDiffuseColor(XmlNode &node, aiMaterial *mat) {
-        const char *color = node.attribute(D3MF::XmlTag::basematerials_displaycolor.c_str()).as_string();
-        aiColor4D diffuse;
-        if (parseColor(color, diffuse)) {
-            mat->AddProperty<aiColor4D>(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
-        }
-    }
-
-    aiMaterial *readMaterialDef(XmlNode &node, unsigned int basematerialsId) {
-        aiMaterial *material = new aiMaterial();
-        material->mNumProperties = 0;
-        std::string name;
-        bool hasName = getNodeAttribute(node, D3MF::XmlTag::basematerials_name, name);
-
-        std::string stdMaterialName;
-        std::string strId(ai_to_string(basematerialsId));
-        stdMaterialName += "id";
-        stdMaterialName += strId;
-        stdMaterialName += "_";
-        if (hasName) {
-            stdMaterialName += std::string(name);
-        } else {
-            stdMaterialName += "basemat_";
-            stdMaterialName += ai_to_string(mMaterialCount - basematerialsId);
-        }
-
-        aiString assimpMaterialName(stdMaterialName);
-        material->AddProperty(&assimpMaterialName, AI_MATKEY_NAME);
-
-        assignDiffuseColor(node, material);
-
-        return material;
-    }
-
-private:
-    struct MetaEntry {
-        std::string name;
-        std::string value;
-    };
-    std::vector<MetaEntry> mMetaData;
-    std::map<unsigned int, Resource*> mResourcesDictionnary;
-    unsigned int mMaterialCount, mMeshCount;
-    XmlParser *mXmlParser;
-};
-
-} //namespace D3MF
 
 static const aiImporterDesc desc = {
     "3mf Importer",
@@ -589,21 +94,23 @@ bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bo
     const std::string extension(GetExtension(filename));
     if (extension == desc.mFileExtensions) {
         return true;
-    } else if (!extension.length() || checkSig) {
+    } 
+
+    if (!extension.length() || checkSig) {
         if (nullptr == pIOHandler) {
             return false;
         }
         if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
             return false;
         }
-        D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
+        D3MFOpcPackage opcPackage(pIOHandler, filename);
         return opcPackage.validate();
     }
 
     return false;
 }
 
-void D3MFImporter::SetupProperties(const Importer * /*pImp*/) {
+void D3MFImporter::SetupProperties(const Importer*) {
     // empty
 }
 
@@ -612,12 +119,21 @@ const aiImporterDesc *D3MFImporter::GetInfo() const {
 }
 
 void D3MFImporter::InternReadFile(const std::string &filename, aiScene *pScene, IOSystem *pIOHandler) {
-    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
+    D3MFOpcPackage opcPackage(pIOHandler, filename);
 
     XmlParser xmlParser;
     if (xmlParser.parse(opcPackage.RootStream())) {
-        D3MF::XmlSerializer xmlSerializer(&xmlParser);
+        XmlSerializer xmlSerializer(&xmlParser);
         xmlSerializer.ImportXml(pScene);
+
+        const std::vector<aiTexture*> &tex =  opcPackage.GetEmbeddedTextures();
+        if (!tex.empty()) {
+            pScene->mNumTextures = static_cast<unsigned int>(tex.size());
+            pScene->mTextures = new aiTexture *[pScene->mNumTextures];
+            for (unsigned int i = 0; i < pScene->mNumTextures; ++i) {
+                pScene->mTextures[i] = tex[i];
+            }
+        }
     }
 }
 

code/AssetLib/3MF/D3MFImporter.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,23 +42,50 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef AI_D3MFLOADER_H_INCLUDED
 #define AI_D3MFLOADER_H_INCLUDED
 
+#ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
+
 #include <assimp/BaseImporter.h>
 
 namespace Assimp {
 
+// ---------------------------------------------------------------------------
+/// @brief  The 3MF-importer class.
+///
+/// Implements the basic topology import and embedded textures.
+// ---------------------------------------------------------------------------
 class D3MFImporter : public BaseImporter {
 public:
-    // BaseImporter interface
+    /// @brief The default class constructor.
     D3MFImporter();
-    ~D3MFImporter();
+
-    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const;
+    ///	@brief  The class destructor.
-    void SetupProperties(const Importer *pImp);
+    ~D3MFImporter() override;
-    const aiImporterDesc *GetInfo() const;
+
+    /// @brief Performs the data format detection.
+    /// @param pFile        The filename to check.
+    /// @param pIOHandler   The used IO-System.
+    /// @param checkSig     true for signature checking.
+    /// @return true for can be loaded, false for not.
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
+
+    /// @brief  Not used
+    /// @param pImp Not used
+    void SetupProperties(const Importer *pImp) override;
+
+    /// @brief The importer description getter.
+    /// @return The info
+    const aiImporterDesc *GetInfo() const override;
 
 protected:
-    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler);
+    /// @brief Internal read function, performs the file parsing.
+    /// @param pFile        The filename
+    /// @param pScene       The scene to load in.
+    /// @param pIOHandler   The io-system
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
 };
 
 } // Namespace Assimp
 
+#endif // #ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
+
 #endif // AI_D3MFLOADER_H_INCLUDED

code/AssetLib/3MF/D3MFOpcPackage.cpp

@@ -43,20 +43,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "D3MFOpcPackage.h"
 #include <assimp/Exceptional.h>
-
 #include <assimp/XmlParser.h>
 #include <assimp/ZipArchiveIOSystem.h>
 #include <assimp/ai_assert.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOStream.hpp>
 #include <assimp/IOSystem.hpp>
-
+#include <assimp/texture.h>
 #include "3MFXmlTags.h"
+
 #include <algorithm>
 #include <cassert>
 #include <cstdlib>
 #include <map>
-#include <memory>
 #include <vector>
 
 namespace Assimp {
@@ -64,11 +63,12 @@ namespace Assimp {
 namespace D3MF {
 // ------------------------------------------------------------------------------------------------
 
-typedef std::shared_ptr<OpcPackageRelationship> OpcPackageRelationshipPtr;
+using OpcPackageRelationshipPtr = std::shared_ptr<OpcPackageRelationship>;
 
 class OpcPackageRelationshipReader {
 public:
-    OpcPackageRelationshipReader(XmlParser &parser) {
+    OpcPackageRelationshipReader(XmlParser &parser) :
+            m_relationShips() {
         XmlNode root = parser.getRootNode();
         ParseRootNode(root);
     }
@@ -91,6 +91,7 @@ public:
         if (relPtr->id.empty() || relPtr->type.empty() || relPtr->target.empty()) {
             return false;
         }
+
         return true;
     }
 
@@ -100,12 +101,12 @@ public:
         }
 
         for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            std::string name = currentNode.name();
+            const std::string name = currentNode.name();
             if (name == "Relationship") {
                 OpcPackageRelationshipPtr relPtr(new OpcPackageRelationship());
-                relPtr->id = currentNode.attribute(XmlTag::RELS_ATTRIB_ID.c_str()).as_string();
+                relPtr->id = currentNode.attribute(XmlTag::RELS_ATTRIB_ID).as_string();
-                relPtr->type = currentNode.attribute(XmlTag::RELS_ATTRIB_TYPE.c_str()).as_string();
+                relPtr->type = currentNode.attribute(XmlTag::RELS_ATTRIB_TYPE).as_string();
-                relPtr->target = currentNode.attribute(XmlTag::RELS_ATTRIB_TARGET.c_str()).as_string();
+                relPtr->target = currentNode.attribute(XmlTag::RELS_ATTRIB_TARGET).as_string();
                 if (validateRels(relPtr)) {
                     m_relationShips.push_back(relPtr);
                 }
@@ -116,11 +117,23 @@ public:
     std::vector<OpcPackageRelationshipPtr> m_relationShips;
 };
 
+static bool IsEmbeddedTexture( const std::string &filename ) {
+    const std::string extension = BaseImporter::GetExtension(filename);
+    if (extension == "jpg" || extension == "png") {
+        std::string::size_type pos = filename.find("thumbnail");
+        if (pos == std::string::npos) {
+            return false;
+        }
+        return true;
+    }
+
+    return false;
+}
 // ------------------------------------------------------------------------------------------------
 D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
         mRootStream(nullptr),
         mZipArchive() {
-    mZipArchive.reset(new ZipArchiveIOSystem(pIOHandler, rFile));
+    mZipArchive = new ZipArchiveIOSystem(pIOHandler, rFile);
     if (!mZipArchive->isOpen()) {
         throw DeadlyImportError("Failed to open file ", rFile, ".");
     }
@@ -136,12 +149,12 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
 
             IOStream *fileStream = mZipArchive->Open(file.c_str());
             if (nullptr == fileStream) {
-                ai_assert(fileStream != nullptr);
+                ASSIMP_LOG_ERROR("Filestream is nullptr.");
                 continue;
             }
 
             std::string rootFile = ReadPackageRootRelationship(fileStream);
-            if (rootFile.size() > 0 && rootFile[0] == '/') {
+            if (!rootFile.empty() && rootFile[0] == '/') {
                 rootFile = rootFile.substr(1);
                 if (rootFile[0] == '/') {
                     // deal with zip-bug
@@ -158,37 +171,45 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
             if (nullptr == mRootStream) {
                 throw DeadlyImportError("Cannot open root-file in archive : " + rootFile);
             }
-
         } else if (file == D3MF::XmlTag::CONTENT_TYPES_ARCHIVE) {
-            ASSIMP_LOG_WARN_F("Ignored file of unsupported type CONTENT_TYPES_ARCHIVES", file);
+            ASSIMP_LOG_WARN("Ignored file of unsupported type CONTENT_TYPES_ARCHIVES", file);
+        } else if (IsEmbeddedTexture(file)) {
+            IOStream *fileStream = mZipArchive->Open(file.c_str());
+            LoadEmbeddedTextures(fileStream, file);
+            mZipArchive->Close(fileStream);
         } else {
-            ASSIMP_LOG_WARN_F("Ignored file of unknown type: ", file);
+            ASSIMP_LOG_WARN("Ignored file of unknown type: ", file);
         }
     }
 }
 
 D3MFOpcPackage::~D3MFOpcPackage() {
     mZipArchive->Close(mRootStream);
+    delete mZipArchive;
 }
 
 IOStream *D3MFOpcPackage::RootStream() const {
     return mRootStream;
 }
 
-static const std::string ModelRef = "3D/3dmodel.model";
+const std::vector<aiTexture *> &D3MFOpcPackage::GetEmbeddedTextures() const {
+    return mEmbeddedTextures;
+}
+
+static const char *const ModelRef = "3D/3dmodel.model";
 
 bool D3MFOpcPackage::validate() {
     if (nullptr == mRootStream || nullptr == mZipArchive) {
         return false;
     }
 
-    return mZipArchive->Exists(ModelRef.c_str());
+    return mZipArchive->Exists(ModelRef);
 }
 
 std::string D3MFOpcPackage::ReadPackageRootRelationship(IOStream *stream) {
     XmlParser xmlParser;
     if (!xmlParser.parse(stream)) {
-        return "";
+        return std::string();
     }
 
     OpcPackageRelationshipReader reader(xmlParser);
@@ -204,6 +225,31 @@ std::string D3MFOpcPackage::ReadPackageRootRelationship(IOStream *stream) {
     return (*itr)->target;
 }
 
+void D3MFOpcPackage::LoadEmbeddedTextures(IOStream *fileStream, const std::string &filename) {
+    if (nullptr == fileStream) {
+        return;
+    }
+
+    const size_t size = fileStream->FileSize();
+    if (0 == size) {
+        return;
+    }
+
+    unsigned char *data = new unsigned char[size];
+    fileStream->Read(data, 1, size);
+    aiTexture *texture = new aiTexture;
+    std::string embName = "*" + filename;
+    texture->mFilename.Set(embName.c_str());
+    texture->mWidth = static_cast<unsigned int>(size);
+    texture->mHeight = 0;
+    texture->achFormatHint[0] = 'p';
+    texture->achFormatHint[1] = 'n';
+    texture->achFormatHint[2] = 'g';
+    texture->achFormatHint[3] = '\0';
+    texture->pcData = (aiTexel*) data;
+    mEmbeddedTextures.emplace_back(texture);
+}
+
 } // Namespace D3MF
 } // Namespace Assimp
 

code/AssetLib/3MF/D3MFOpcPackage.h

@@ -42,11 +42,14 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef D3MFOPCPACKAGE_H
 #define D3MFOPCPACKAGE_H
 
+#include <assimp/IOSystem.hpp>
 #include <memory>
 #include <string>
-#include <assimp/IOSystem.hpp>
+
+struct aiTexture;
 
 namespace Assimp {
+
 class ZipArchiveIOSystem;
 
 namespace D3MF {
@@ -63,16 +66,19 @@ public:
     ~D3MFOpcPackage();
     IOStream* RootStream() const;
     bool validate();
+    const std::vector<aiTexture*> &GetEmbeddedTextures() const;
 
 protected:
     std::string ReadPackageRootRelationship(IOStream* stream);
+    void LoadEmbeddedTextures(IOStream *fileStream, const std::string &filename);
 
 private:
     IOStream* mRootStream;
-    std::unique_ptr<ZipArchiveIOSystem> mZipArchive;
+    ZipArchiveIOSystem *mZipArchive;
+    std::vector<aiTexture *> mEmbeddedTextures;
 };
 
-} // Namespace D3MF
+} // namespace D3MF
-} // Namespace Assimp
+} // namespace Assimp
 
 #endif // D3MFOPCPACKAGE_H

code/AssetLib/3MF/XmlSerializer.cpp

@@ -0,0 +1,593 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2021, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#include "XmlSerializer.h"
+#include "D3MFOpcPackage.h"
+#include "3MFXmlTags.h"
+#include "3MFTypes.h"
+#include <assimp/scene.h>
+
+namespace Assimp {
+namespace D3MF {
+
+static const int IdNotSet = -1;
+
+namespace {
+
+static const size_t ColRGBA_Len = 9;
+static const size_t ColRGB_Len = 7;
+
+// format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
+bool validateColorString(const char *color) {
+    const size_t len = strlen(color);
+    if (ColRGBA_Len != len && ColRGB_Len != len) {
+        return false;
+    }
+
+    return true;
+}
+
+aiFace ReadTriangle(XmlNode &node) {
+    aiFace face;
+
+    face.mNumIndices = 3;
+    face.mIndices = new unsigned int[face.mNumIndices];
+    face.mIndices[0] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v1).as_string()));
+    face.mIndices[1] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v2).as_string()));
+    face.mIndices[2] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v3).as_string()));
+
+    return face;
+}
+
+aiVector3D ReadVertex(XmlNode &node) {
+    aiVector3D vertex;
+    vertex.x = ai_strtof(node.attribute(XmlTag::x).as_string(), nullptr);
+    vertex.y = ai_strtof(node.attribute(XmlTag::y).as_string(), nullptr);
+    vertex.z = ai_strtof(node.attribute(XmlTag::z).as_string(), nullptr);
+
+    return vertex;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, std::string &value) {
+    pugi::xml_attribute objectAttribute = node.attribute(attribute.c_str());
+    if (!objectAttribute.empty()) {
+        value = objectAttribute.as_string();
+        return true;
+    }
+
+    return false;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, int &value) {
+    std::string strValue;
+    const bool ret = getNodeAttribute(node, attribute, strValue);
+    if (ret) {
+        value = std::atoi(strValue.c_str());
+        return true;
+    }
+
+    return false;
+}
+
+aiMatrix4x4 parseTransformMatrix(std::string matrixStr) {
+    // split the string
+    std::vector<float> numbers;
+    std::string currentNumber;
+    for (char c : matrixStr) {
+        if (c == ' ') {
+            if (!currentNumber.empty()) {
+                float f = std::stof(currentNumber);
+                numbers.push_back(f);
+                currentNumber.clear();
+            }
+        } else {
+            currentNumber.push_back(c);
+        }
+    }
+    if (!currentNumber.empty()) {
+        const float f = std::stof(currentNumber);
+        numbers.push_back(f);
+    }
+
+    aiMatrix4x4 transformMatrix;
+    transformMatrix.a1 = numbers[0];
+    transformMatrix.b1 = numbers[1];
+    transformMatrix.c1 = numbers[2];
+    transformMatrix.d1 = 0;
+
+    transformMatrix.a2 = numbers[3];
+    transformMatrix.b2 = numbers[4];
+    transformMatrix.c2 = numbers[5];
+    transformMatrix.d2 = 0;
+
+    transformMatrix.a3 = numbers[6];
+    transformMatrix.b3 = numbers[7];
+    transformMatrix.c3 = numbers[8];
+    transformMatrix.d3 = 0;
+
+    transformMatrix.a4 = numbers[9];
+    transformMatrix.b4 = numbers[10];
+    transformMatrix.c4 = numbers[11];
+    transformMatrix.d4 = 1;
+
+    return transformMatrix;
+}
+
+bool parseColor(const char *color, aiColor4D &diffuse) {
+    if (nullptr == color) {
+        return false;
+    }
+
+    if (!validateColorString(color)) {
+        return false;
+    }
+
+    if ('#' != color[0]) {
+        return false;
+    }
+
+    char r[3] = { color[1], color[2], '\0' };
+    diffuse.r = static_cast<ai_real>(strtol(r, nullptr, 16)) / ai_real(255.0);
+
+    char g[3] = { color[3], color[4], '\0' };
+    diffuse.g = static_cast<ai_real>(strtol(g, nullptr, 16)) / ai_real(255.0);
+
+    char b[3] = { color[5], color[6], '\0' };
+    diffuse.b = static_cast<ai_real>(strtol(b, nullptr, 16)) / ai_real(255.0);
+    const size_t len = strlen(color);
+    if (ColRGB_Len == len) {
+        return true;
+    }
+
+    char a[3] = { color[7], color[8], '\0' };
+    diffuse.a = static_cast<ai_real>(strtol(a, nullptr, 16)) / ai_real(255.0);
+
+    return true;
+}
+
+void assignDiffuseColor(XmlNode &node, aiMaterial *mat) {
+    const char *color = node.attribute(XmlTag::basematerials_displaycolor).as_string();
+    aiColor4D diffuse;
+    if (parseColor(color, diffuse)) {
+        mat->AddProperty<aiColor4D>(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+    }
+}
+
+} // namespace
+
+XmlSerializer::XmlSerializer(XmlParser *xmlParser) :
+        mResourcesDictionnary(),
+        mMeshCount(0),
+        mXmlParser(xmlParser) {
+    ai_assert(nullptr != xmlParser);
+}
+
+XmlSerializer::~XmlSerializer() {
+    for (auto &it : mResourcesDictionnary) {
+        delete it.second;
+    }
+}
+
+void XmlSerializer::ImportXml(aiScene *scene) {
+    if (nullptr == scene) {
+        return;
+    }
+    
+    scene->mRootNode = new aiNode(XmlTag::RootTag);
+    XmlNode node = mXmlParser->getRootNode().child(XmlTag::model);
+    if (node.empty()) {
+        return;
+    }
+
+    XmlNode resNode = node.child(XmlTag::resources);
+    for (auto &currentNode : resNode.children()) {
+        const std::string currentNodeName = currentNode.name();
+        if (currentNodeName == XmlTag::texture_2d) {
+            ReadEmbeddecTexture(currentNode);
+        } else if (currentNodeName == XmlTag::texture_group) {
+            ReadTextureGroup(currentNode);
+        } else if (currentNodeName == XmlTag::object) {
+            ReadObject(currentNode);
+        } else if (currentNodeName == XmlTag::basematerials) {
+            ReadBaseMaterials(currentNode);
+        } else if (currentNodeName == XmlTag::meta) {
+            ReadMetadata(currentNode);
+        }
+    }
+    StoreMaterialsInScene(scene);
+    XmlNode buildNode = node.child(XmlTag::build);
+    if (buildNode.empty()) {
+        return;
+    }
+
+    for (auto &currentNode : buildNode.children()) {
+        const std::string currentNodeName = currentNode.name();
+        if (currentNodeName == XmlTag::item) {
+            int objectId = IdNotSet;
+            std::string transformationMatrixStr;
+            aiMatrix4x4 transformationMatrix;
+            getNodeAttribute(currentNode, D3MF::XmlTag::objectid, objectId);
+            bool hasTransform = getNodeAttribute(currentNode, D3MF::XmlTag::transform, transformationMatrixStr);
+
+            auto it = mResourcesDictionnary.find(objectId);
+            if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+                Object *obj = static_cast<Object *>(it->second);
+                if (hasTransform) {
+                    transformationMatrix = parseTransformMatrix(transformationMatrixStr);
+                }
+
+                addObjectToNode(scene->mRootNode, obj, transformationMatrix);
+            }
+        }
+    }
+
+    // import the metadata
+    if (!mMetaData.empty()) {
+        const size_t numMeta = mMetaData.size();
+        scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
+        for (size_t i = 0; i < numMeta; ++i) {
+            aiString val(mMetaData[i].value);
+            scene->mMetaData->Set(static_cast<unsigned int>(i), mMetaData[i].name, val);
+        }
+    }
+
+    // import the meshes, materials are already stored
+    scene->mNumMeshes = static_cast<unsigned int>(mMeshCount);
+    if (scene->mNumMeshes != 0) {
+        scene->mMeshes = new aiMesh *[scene->mNumMeshes]();
+        for (auto &it : mResourcesDictionnary) {
+            if (it.second->getType() == ResourceType::RT_Object) {
+                Object *obj = static_cast<Object *>(it.second);
+                ai_assert(nullptr != obj);
+                for (unsigned int i = 0; i < obj->mMeshes.size(); ++i) {
+                    scene->mMeshes[obj->mMeshIndex[i]] = obj->mMeshes[i];
+                }
+            }
+        }
+    }
+}
+
+void XmlSerializer::addObjectToNode(aiNode *parent, Object *obj, aiMatrix4x4 nodeTransform) {
+    ai_assert(nullptr != obj);
+
+    aiNode *sceneNode = new aiNode(obj->mName);
+    sceneNode->mNumMeshes = static_cast<unsigned int>(obj->mMeshes.size());
+    sceneNode->mMeshes = new unsigned int[sceneNode->mNumMeshes];
+    std::copy(obj->mMeshIndex.begin(), obj->mMeshIndex.end(), sceneNode->mMeshes);
+
+    sceneNode->mTransformation = nodeTransform;
+    if (nullptr != parent) {
+        parent->addChildren(1, &sceneNode);
+    }
+
+    for (Assimp::D3MF::Component c : obj->mComponents) {
+        auto it = mResourcesDictionnary.find(c.mObjectId);
+        if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+            addObjectToNode(sceneNode, static_cast<Object *>(it->second), c.mTransformation);
+        }
+    }
+}
+
+void XmlSerializer::ReadObject(XmlNode &node) {
+    int id = IdNotSet, pid = IdNotSet, pindex = IdNotSet;
+    bool hasId = getNodeAttribute(node, XmlTag::id, id);
+    if (!hasId) {
+        return;
+    }
+
+    bool hasPid = getNodeAttribute(node, XmlTag::pid, pid);
+    bool hasPindex = getNodeAttribute(node, XmlTag::pindex, pindex);
+
+    Object *obj = new Object(id);
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == D3MF::XmlTag::mesh) {
+            auto mesh = ReadMesh(currentNode);
+            mesh->mName.Set(ai_to_string(id));
+
+            if (hasPid) {
+                auto it = mResourcesDictionnary.find(pid);
+                if (hasPindex && it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_BaseMaterials) {
+                    BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
+                    mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
+                }
+            }
+
+            obj->mMeshes.push_back(mesh);
+            obj->mMeshIndex.push_back(mMeshCount);
+            mMeshCount++;
+        } else if (currentName == D3MF::XmlTag::components) {
+            for (XmlNode &currentSubNode : currentNode.children()) {
+                const std::string subNodeName = currentSubNode.name();
+                if (subNodeName == D3MF::XmlTag::component) {
+                    int objectId = IdNotSet;
+                    std::string componentTransformStr;
+                    aiMatrix4x4 componentTransform;
+                    if (getNodeAttribute(currentSubNode, D3MF::XmlTag::transform, componentTransformStr)) {
+                        componentTransform = parseTransformMatrix(componentTransformStr);
+                    }
+
+                    if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId)) {
+                        obj->mComponents.push_back({ objectId, componentTransform });
+                    }
+                }
+            }
+        }
+    }
+
+    mResourcesDictionnary.insert(std::make_pair(id, obj));
+}
+
+aiMesh *XmlSerializer::ReadMesh(XmlNode &node) {
+    if (node.empty()) {
+        return nullptr;
+    }
+
+    aiMesh *mesh = new aiMesh();
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::vertices) {
+            ImportVertices(currentNode, mesh);
+        } else if (currentName == XmlTag::triangles) {
+            ImportTriangles(currentNode, mesh);
+        }
+    }
+
+    return mesh;
+}
+
+void XmlSerializer::ReadMetadata(XmlNode &node) {
+    pugi::xml_attribute attribute = node.attribute(D3MF::XmlTag::meta_name);
+    const std::string name = attribute.as_string();
+    const std::string value = node.value();
+    if (name.empty()) {
+        return;
+    }
+
+    MetaEntry entry;
+    entry.name = name;
+    entry.value = value;
+    mMetaData.push_back(entry);
+}
+
+void XmlSerializer::ImportVertices(XmlNode &node, aiMesh *mesh) {
+    ai_assert(nullptr != mesh);
+
+    std::vector<aiVector3D> vertices;
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::vertex) {
+            vertices.push_back(ReadVertex(currentNode));
+        }
+    }
+
+    mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
+    mesh->mVertices = new aiVector3D[mesh->mNumVertices];
+    std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
+}
+
+void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
+    std::vector<aiFace> faces;
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::triangle) {
+            int pid = IdNotSet, p1 = IdNotSet;
+            bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
+            bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
+
+            if (hasPid && hasP1) {
+                auto it = mResourcesDictionnary.find(pid);
+                if (it != mResourcesDictionnary.end()) {
+                    if (it->second->getType() == ResourceType::RT_BaseMaterials) {
+                        BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
+                        mesh->mMaterialIndex = baseMaterials->mMaterialIndex[p1];
+                    } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
+                        if (mesh->mTextureCoords[0] == nullptr) {
+                            Texture2DGroup *group = static_cast<Texture2DGroup *>(it->second);
+                            const std::string name = ai_to_string(group->mTexId);
+                            for (size_t i = 0; i < mMaterials.size(); ++i) {
+                                if (name == mMaterials[i]->GetName().C_Str()) {
+                                    mesh->mMaterialIndex = static_cast<unsigned int>(i);
+                                }
+                            }
+                            mesh->mTextureCoords[0] = new aiVector3D[group->mTex2dCoords.size()];
+                            for (unsigned int i = 0; i < group->mTex2dCoords.size(); ++i) {
+                                mesh->mTextureCoords[0][i] = aiVector3D(group->mTex2dCoords[i].x, group->mTex2dCoords[i].y, 0);
+                            }
+                        }
+                    } 
+                }
+            }
+
+            aiFace face = ReadTriangle(currentNode);
+            faces.push_back(face);
+        }
+    }
+
+    mesh->mNumFaces = static_cast<unsigned int>(faces.size());
+    mesh->mFaces = new aiFace[mesh->mNumFaces];
+    mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+
+    std::copy(faces.begin(), faces.end(), mesh->mFaces);
+}
+
+void XmlSerializer::ReadBaseMaterials(XmlNode &node) {
+    int id = IdNotSet;
+    if (getNodeAttribute(node, D3MF::XmlTag::id, id)) {
+        BaseMaterials *baseMaterials = new BaseMaterials(id);
+
+        for (XmlNode &currentNode : node.children()) {
+            const std::string currentName = currentNode.name();
+            if (currentName == XmlTag::basematerials_base) {
+                baseMaterials->mMaterialIndex.push_back(static_cast<unsigned int>(mMaterials.size()));
+                mMaterials.push_back(readMaterialDef(currentNode, id));
+            }
+        }
+
+        mResourcesDictionnary.insert(std::make_pair(id, baseMaterials));
+    }
+}
+
+void XmlSerializer::ReadEmbeddecTexture(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    std::string value;
+    EmbeddedTexture *tex2D = nullptr;
+    if (XmlParser::getStdStrAttribute(node, XmlTag::id, value)) {
+        tex2D = new EmbeddedTexture(atoi(value.c_str()));
+    }
+    if (nullptr == tex2D) {
+        return;
+    }
+
+    if (XmlParser::getStdStrAttribute(node, XmlTag::path, value)) {
+        tex2D->mPath = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_content_type, value)) {
+        tex2D->mContentType = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestyleu, value)) {
+        tex2D->mTilestyleU = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestylev, value)) {
+        tex2D->mTilestyleV = value;
+    }
+    mEmbeddedTextures.emplace_back(tex2D);
+    StoreEmbeddedTexture(tex2D);
+}
+
+void XmlSerializer::StoreEmbeddedTexture(EmbeddedTexture *tex) {
+    aiMaterial *mat = new aiMaterial;
+    aiString s;
+    s.Set(ai_to_string(tex->mId).c_str());
+    mat->AddProperty(&s, AI_MATKEY_NAME);
+    const std::string name = "*" + tex->mPath;
+    s.Set(name);
+    mat->AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
+
+    aiColor3D col;
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_DIFFUSE);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_AMBIENT);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_EMISSIVE);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_SPECULAR);
+    mMaterials.emplace_back(mat);
+}
+
+void XmlSerializer::ReadTextureCoords2D(XmlNode &node, Texture2DGroup *tex2DGroup) {
+    if (node.empty() || nullptr == tex2DGroup) {
+        return;
+    }
+
+    int id = IdNotSet;
+    if (XmlParser::getIntAttribute(node, "texid", id)) {
+        tex2DGroup->mTexId = id;
+    }
+
+    double value = 0.0;
+    for (XmlNode currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        aiVector2D texCoord;
+        if (currentName == XmlTag::texture_2d_coord) {
+            XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_u, value);
+            texCoord.x = (ai_real)value;
+            XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_v, value);
+            texCoord.y = (ai_real)value;
+            tex2DGroup->mTex2dCoords.push_back(texCoord);
+        }
+    }
+}
+
+void XmlSerializer::ReadTextureGroup(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    int id = IdNotSet;
+    if (!XmlParser::getIntAttribute(node, XmlTag::id, id)) {
+        return;
+    }
+
+    Texture2DGroup *group = new Texture2DGroup(id);
+    ReadTextureCoords2D(node, group);
+    mResourcesDictionnary.insert(std::make_pair(id, group));
+}
+
+aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basematerialsId) {
+    aiMaterial *material = new aiMaterial();
+    material->mNumProperties = 0;
+    std::string name;
+    bool hasName = getNodeAttribute(node, D3MF::XmlTag::basematerials_name, name);
+
+    std::string stdMaterialName;
+    const std::string strId(ai_to_string(basematerialsId));
+    stdMaterialName += "id";
+    stdMaterialName += strId;
+    stdMaterialName += "_";
+    if (hasName) {
+        stdMaterialName += std::string(name);
+    } else {
+        stdMaterialName += "basemat_";
+        stdMaterialName += ai_to_string(mMaterials.size());
+    }
+
+    aiString assimpMaterialName(stdMaterialName);
+    material->AddProperty(&assimpMaterialName, AI_MATKEY_NAME);
+
+    assignDiffuseColor(node, material);
+
+    return material;
+}
+
+void XmlSerializer::StoreMaterialsInScene(aiScene *scene) {
+    if (nullptr == scene || mMaterials.empty()) {
+        return;
+    }
+
+    scene->mNumMaterials = static_cast<unsigned int>(mMaterials.size());
+    scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
+    for (size_t i = 0; i < mMaterials.size(); ++i) {
+        scene->mMaterials[i] = mMaterials[i];
+    }
+}
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/3MF/XmlSerializer.h

@@ -3,6 +3,7 @@ Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
 Copyright (c) 2006-2021, assimp team
+
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -37,22 +38,59 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 ----------------------------------------------------------------------
 */
-
 #pragma once
-#ifndef AI_DEFINES_H_INC
-#define AI_DEFINES_H_INC
 
-#ifdef __GNUC__
+#include <assimp/XmlParser.h>
-#   pragma GCC system_header
+#include <assimp/mesh.h>
-#endif
+#include <vector>
+#include <map>
 
-// We need those constants, workaround for any platforms where nobody defined them yet
+struct aiNode;
-#if (!defined SIZE_MAX)
+struct aiMesh;
-#   define SIZE_MAX (~((size_t)0))
+struct aiMaterial;
-#endif
 
-#if (!defined UINT_MAX)
+namespace Assimp {
-#   define UINT_MAX (~((unsigned int)0))
+namespace D3MF {
-#endif
 
-#endif // AI_DEINES_H_INC
+class Resource;
+class D3MFOpcPackage;
+class Object;
+class Texture2DGroup;
+class EmbeddedTexture;
+
+class XmlSerializer {
+public:
+    XmlSerializer(XmlParser *xmlParser);
+    ~XmlSerializer();
+    void ImportXml(aiScene *scene);
+
+private:
+    void addObjectToNode(aiNode *parent, Object *obj, aiMatrix4x4 nodeTransform);
+    void ReadObject(XmlNode &node);
+    aiMesh *ReadMesh(XmlNode &node);
+    void ReadMetadata(XmlNode &node);
+    void ImportVertices(XmlNode &node, aiMesh *mesh);
+    void ImportTriangles(XmlNode &node, aiMesh *mesh);
+    void ReadBaseMaterials(XmlNode &node);
+    void ReadEmbeddecTexture(XmlNode &node);
+    void StoreEmbeddedTexture(EmbeddedTexture *tex);
+    void ReadTextureCoords2D(XmlNode &node, Texture2DGroup *tex2DGroup);
+    void ReadTextureGroup(XmlNode &node);
+    aiMaterial *readMaterialDef(XmlNode &node, unsigned int basematerialsId);
+    void StoreMaterialsInScene(aiScene *scene);
+
+private:
+    struct MetaEntry {
+        std::string name;
+        std::string value;
+    };
+    std::vector<MetaEntry> mMetaData;
+    std::vector<EmbeddedTexture *> mEmbeddedTextures;
+    std::vector<aiMaterial *> mMaterials;
+    std::map<unsigned int, Resource *> mResourcesDictionnary;
+    unsigned int mMeshCount;
+    XmlParser *mXmlParser;
+};
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/AC/ACLoader.cpp

@@ -116,7 +116,7 @@ inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name
     buffer = AcSkipToNextToken(buffer);
     if (0 != name_length) {
         if (0 != strncmp(buffer, name, name_length) || !IsSpace(buffer[name_length])) {
-            ASSIMP_LOG_ERROR("AC3D: Unexpexted token. " + std::string(name) + " was expected.");
+            ASSIMP_LOG_ERROR("AC3D: Unexpected token. ", name, " was expected.");
             return buffer;
         }
         buffer += name_length + 1;
@@ -492,7 +492,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
 
                 default:
                     // Coerce unknowns to a polygon and warn
-                    ASSIMP_LOG_WARN_F("AC3D: The type flag of a surface is unknown: ", (*it).flags);
+                    ASSIMP_LOG_WARN("AC3D: The type flag of a surface is unknown: ", (*it).flags);
                     (*it).flags &= ~(Surface::Mask);
                     // fallthrough
 
@@ -690,7 +690,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
             if (object.subDiv) {
                 if (configEvalSubdivision) {
                     std::unique_ptr<Subdivider> div(Subdivider::Create(Subdivider::CATMULL_CLARKE));
-                    ASSIMP_LOG_INFO("AC3D: Evaluating subdivision surface: " + object.name);
+                    ASSIMP_LOG_INFO("AC3D: Evaluating subdivision surface: ", object.name);
 
                     std::vector<aiMesh *> cpy(meshes.size() - oldm, nullptr);
                     div->Subdivide(&meshes[oldm], cpy.size(), &cpy.front(), object.subDiv, true);
@@ -698,7 +698,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
 
                     // previous meshes are deleted vy Subdivide().
                 } else {
-                    ASSIMP_LOG_INFO("AC3D: Letting the subdivision surface untouched due to my configuration: " + object.name);
+                    ASSIMP_LOG_INFO("AC3D: Letting the subdivision surface untouched due to my configuration: ", object.name);
                 }
             }
         }
@@ -782,7 +782,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     unsigned int version = HexDigitToDecimal(buffer[4]);
     char msg[3];
     ASSIMP_itoa10(msg, 3, version);
-    ASSIMP_LOG_INFO_F("AC3D file format version: ", msg);
+    ASSIMP_LOG_INFO("AC3D file format version: ", msg);
 
     std::vector<Material> materials;
     materials.reserve(5);

code/AssetLib/AC/ACLoader.h

@@ -63,7 +63,7 @@ namespace Assimp {
 class AC3DImporter : public BaseImporter {
 public:
     AC3DImporter();
-    ~AC3DImporter();
+    ~AC3DImporter() override;
 
     // Represents an AC3D material
     struct Material {
@@ -123,9 +123,9 @@ public:
     struct Object {
         Object() :
                 type(World),
-                name(""),
+                name(),
                 children(),
-                texture(""),
+                texture(),
                 texRepeat(1.f, 1.f),
                 texOffset(0.0f, 0.0f),
                 rotation(),
@@ -185,25 +185,25 @@ public:
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
-            bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details */
-    const aiImporterDesc *GetInfo() const;
+    const aiImporterDesc *GetInfo() const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
      * See BaseImporter::InternReadFile() for details*/
     void InternReadFile(const std::string &pFile, aiScene *pScene,
-            IOSystem *pIOHandler);
+            IOSystem *pIOHandler) override;
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
     * The function is a request to the importer to update its configuration
     * basing on the Importer's configuration property list.*/
-    void SetupProperties(const Importer *pImp);
+    void SetupProperties(const Importer *pImp) override;
 
 private:
     // -------------------------------------------------------------------

code/AssetLib/AMF/AMFImporter.cpp

@@ -205,7 +205,7 @@ void AMFImporter::ParseHelper_FixTruncatedFloatString(const char *pInStr, std::s
 }
 
 static bool ParseHelper_Decode_Base64_IsBase64(const char pChar) {
-    return (isalnum(pChar) || (pChar == '+') || (pChar == '/'));
+    return (isalnum((unsigned char)pChar) || (pChar == '+') || (pChar == '/'));
 }
 
 void AMFImporter::ParseHelper_Decode_Base64(const std::string &pInputBase64, std::vector<uint8_t> &pOutputData) const {
@@ -268,7 +268,8 @@ void AMFImporter::ParseFile(const std::string &pFile, IOSystem *pIOHandler) {
     mXmlParser = new XmlParser();
     if (!mXmlParser->parse(file.get())) {
         delete mXmlParser;
-        throw DeadlyImportError("Failed to create XML reader for file" + pFile + ".");
+        mXmlParser = nullptr;
+        throw DeadlyImportError("Failed to create XML reader for file ", pFile, ".");
     }
 
     // Start reading, search for root tag <amf>
@@ -510,17 +511,13 @@ bool AMFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool p
     }
 
     if (extension.empty() || pCheckSig) {
-        const char *tokens[] = { "<amf" };
+        static const char * const tokens[] = { "<amf" };
         return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
 
     return false;
 }
 
-void AMFImporter::GetExtensionList(std::set<std::string> &pExtensionList) {
-    pExtensionList.insert("amf");
-}
-
 const aiImporterDesc *AMFImporter::GetInfo() const {
     return &Description;
 }

code/AssetLib/AMF/AMFImporter.hpp

@@ -267,7 +267,7 @@ public:
     AMFImporter() AI_NO_EXCEPT;
 
     /// Default destructor.
-    ~AMFImporter();
+    ~AMFImporter() override;
 
     /// Parse AMF file and fill scene graph. The function has no return value. Result can be found by analyzing the generated graph.
     /// Also exception can be thrown if trouble will found.
@@ -276,10 +276,9 @@ public:
     void ParseFile(const std::string &pFile, IOSystem *pIOHandler);
     void ParseHelper_Node_Enter(AMFNodeElementBase *child);
     void ParseHelper_Node_Exit();
-    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool pCheckSig) const;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool pCheckSig) const override;
-    void GetExtensionList(std::set<std::string> &pExtensionList);
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
-    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler);
+    const aiImporterDesc *GetInfo() const override;
-    const aiImporterDesc *GetInfo() const;
     bool Find_NodeElement(const std::string &pID, const AMFNodeElementBase::EType pType, AMFNodeElementBase **pNodeElement) const;
     bool Find_ConvertedNode(const std::string &pID, NodeArray &nodeArray, aiNode **pNode) const;
     bool Find_ConvertedMaterial(const std::string &pID, const SPP_Material **pConvertedMaterial) const;

code/AssetLib/AMF/AMFImporter_Node.hpp

@@ -48,15 +48,14 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef INCLUDED_AI_AMF_IMPORTER_NODE_H
 #define INCLUDED_AI_AMF_IMPORTER_NODE_H
 
-// Header files, stdlib.
+// Header files, Assimp.
+#include <assimp/scene.h>
+#include <assimp/types.h>
+
 #include <list>
 #include <string>
 #include <vector>
 
-// Header files, Assimp.
-#include "assimp/scene.h"
-#include "assimp/types.h"
-
 /// \class CAMFImporter_NodeElement
 /// Base class for elements of nodes.
 class AMFNodeElementBase {

code/AssetLib/AMF/AMFImporter_Postprocess.cpp

@@ -428,10 +428,10 @@ void AMFImporter::Postprocess_BuildMeshSet(const AMFMesh &pNodeElement, const st
 
                     if (pBiggerThan != nullptr) {
                         bool found = false;
-
+                        const size_t biggerThan = *pBiggerThan;
                         for (const SComplexFace &face : pFaceList) {
                             for (size_t idx_vert = 0; idx_vert < face.Face.mNumIndices; idx_vert++) {
-                                if (face.Face.mIndices[idx_vert] > *pBiggerThan) {
+                                if (face.Face.mIndices[idx_vert] > biggerThan) {
                                     rv = face.Face.mIndices[idx_vert];
                                     found = true;
                                     break;
@@ -690,7 +690,7 @@ void AMFImporter::Postprocess_BuildConstellation(AMFConstellation &pConstellatio
         if (ne->Type == AMFNodeElementBase::ENET_Metadata) continue;
         if (ne->Type != AMFNodeElementBase::ENET_Instance) throw DeadlyImportError("Only <instance> nodes can be in <constellation>.");
 
-        // create alias for conveniance
+        // create alias for convenience
         AMFInstance &als = *((AMFInstance *)ne);
         // find referenced object
         if (!Find_ConvertedNode(als.ObjectID, nodeArray, &found_node)) Throw_ID_NotFound(als.ObjectID);

code/AssetLib/ASE/ASELoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -106,7 +104,7 @@ bool ASEImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool c
     }
 
     if ((!extension.length() || cs) && pIOHandler) {
-        const char *tokens[] = { "*3dsmax_asciiexport" };
+        static const char * const tokens[] = { "*3dsmax_asciiexport" };
         return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
     return false;
@@ -614,7 +612,7 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
             node->mNumChildren++;
 
             // What we did is so great, it is at least worth a debug message
-            ASSIMP_LOG_VERBOSE_DEBUG("ASE: Generating separate target node (" + snode->mName + ")");
+            ASSIMP_LOG_VERBOSE_DEBUG("ASE: Generating separate target node (", snode->mName, ")");
         }
     }
 
@@ -683,7 +681,7 @@ void ASEImporter::BuildNodes(std::vector<BaseNode *> &nodes) {
         }
     }
 
-    // Are there ane orphaned nodes?
+    // Are there any orphaned nodes?
     if (!aiList.empty()) {
         std::vector<aiNode *> apcNodes;
         apcNodes.reserve(aiList.size() + pcScene->mRootNode->mNumChildren);

code/AssetLib/ASE/ASELoader.h

@@ -62,42 +62,37 @@ namespace Assimp {
 class ASEImporter : public BaseImporter {
 public:
     ASEImporter();
-    ~ASEImporter();
+    ~ASEImporter() override;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
 protected:
-
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc* GetInfo () const override;
-
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
     * See BaseImporter::InternReadFile() for details
     */
     void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
+        IOSystem* pIOHandler) override;
-
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
     * The function is a request to the importer to update its configuration
     * basing on the Importer's configuration property list.
     */
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer* pImp) override;
-
 
 private:
-
     // -------------------------------------------------------------------
     /** Generate normal vectors basing on smoothing groups
      * (in some cases the normal are already contained in the file)
@@ -106,7 +101,6 @@ private:
      */
     bool GenerateNormals(ASE::Mesh& mesh);
 
-
     // -------------------------------------------------------------------
     /** Create valid vertex/normal/UV/color/face lists.
      *  All elements are unique, faces have only one set of indices
@@ -115,51 +109,43 @@ private:
      */
     void BuildUniqueRepresentation(ASE::Mesh& mesh);
 
-
     /** Create one-material-per-mesh meshes ;-)
      * \param mesh Mesh to work with
      *  \param Receives the list of all created meshes
      */
     void ConvertMeshes(ASE::Mesh& mesh, std::vector<aiMesh*>& avOut);
 
-
     // -------------------------------------------------------------------
     /** Convert a material to a aiMaterial object
      * \param mat Input material
      */
     void ConvertMaterial(ASE::Material& mat);
 
-
     // -------------------------------------------------------------------
     /** Setup the final material indices for each mesh
      */
     void BuildMaterialIndices();
 
-
     // -------------------------------------------------------------------
     /** Build the node graph
      */
     void BuildNodes(std::vector<ASE::BaseNode*>& nodes);
 
-
     // -------------------------------------------------------------------
     /** Build output cameras
      */
     void BuildCameras();
 
-
     // -------------------------------------------------------------------
     /** Build output lights
      */
     void BuildLights();
 
-
     // -------------------------------------------------------------------
     /** Build output animations
      */
     void BuildAnimations(const std::vector<ASE::BaseNode*>& nodes);
 
-
     // -------------------------------------------------------------------
     /** Add sub nodes to a node
      *  \param pcParent parent node to be filled
@@ -183,7 +169,6 @@ private:
     void GenerateDefaultMaterial();
 
 protected:
-
     /** Parser instance */
     ASE::Parser* mParser;
 

code/AssetLib/ASE/ASEParser.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -498,6 +496,12 @@ void Parser::ParseLV1MaterialListBlock() {
                 ParseLV2MaterialBlock(sMat);
                 continue;
             }
+            if( iDepth == 1 ){
+                // CRUDE HACK: support missing brace after "Ascii Scene Exporter v2.51"
+                LogWarning("Missing closing brace in material list");
+                --filePtr;
+                return;
+            }
         }
         AI_ASE_HANDLE_TOP_LEVEL_SECTION();
     }
@@ -671,7 +675,7 @@ void Parser::ParseLV3MapBlock(Texture &map) {
                 if (!ParseString(temp, "*MAP_CLASS"))
                     SkipToNextToken();
                 if (temp != "Bitmap" && temp != "Normal Bump") {
-                    ASSIMP_LOG_WARN_F("ASE: Skipping unknown map type: ", temp);
+                    ASSIMP_LOG_WARN("ASE: Skipping unknown map type: ", temp);
                     parsePath = false;
                 }
                 continue;
@@ -685,7 +689,7 @@ void Parser::ParseLV3MapBlock(Texture &map) {
                     // Files with 'None' as map name are produced by
                     // an Maja to ASE exporter which name I forgot ..
                     ASSIMP_LOG_WARN("ASE: Skipping invalid map entry");
-                    map.mMapName = "";
+                    map.mMapName = std::string();
                 }
 
                 continue;
@@ -1119,7 +1123,7 @@ void Parser::ParseLV2NodeTransformBlock(ASE::BaseNode &mesh) {
                                          "this is no spot light or target camera");
                     }
                 } else {
-                    ASSIMP_LOG_ERROR("ASE: Unknown node transformation: " + temp);
+                    ASSIMP_LOG_ERROR("ASE: Unknown node transformation: ", temp);
                     // mode = 0
                 }
                 continue;

code/AssetLib/ASE/ASEParser.h

@@ -95,8 +95,8 @@ struct Material : public D3DS::Material {
     Material(Material &&other) AI_NO_EXCEPT
             : D3DS::Material(std::move(other)),
               avSubMaterials(std::move(other.avSubMaterials)),
-              pcInstance(std::move(other.pcInstance)),
+              pcInstance(other.pcInstance),
-              bNeed(std::move(other.bNeed)) {
+              bNeed(other.bNeed) {
         other.pcInstance = nullptr;
     }
 
@@ -108,8 +108,8 @@ struct Material : public D3DS::Material {
         //D3DS::Material::operator=(std::move(other));
 
         avSubMaterials = std::move(other.avSubMaterials);
-        pcInstance = std::move(other.pcInstance);
+        pcInstance = other.pcInstance;
-        bNeed = std::move(other.bNeed);
+        bNeed = other.bNeed;
 
         other.pcInstance = nullptr;
 

code/AssetLib/Assbin/AssbinExporter.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,16 +42,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssbinExporter.h
  * ASSBIN Exporter Main Header
  */
+#pragma once
 #ifndef AI_ASSBINEXPORTER_H_INC
 #define AI_ASSBINEXPORTER_H_INC
 
 #include <assimp/defs.h>
 
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
 // nothing really needed here - reserved for future use like properties
 namespace Assimp {
 
 void ASSIMP_API ExportSceneAssbin(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/);
 
 }
-
+#endif 
 #endif // AI_ASSBINEXPORTER_H_INC

code/AssetLib/Assbin/AssbinFileWriter.cpp

@@ -43,13 +43,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "AssbinFileWriter.h"
-
 #include "Common/assbin_chunks.h"
 #include "PostProcessing/ProcessHelper.h"
 
 #include <assimp/Exceptional.h>
 #include <assimp/version.h>
-#include <assimp/Exporter.hpp>
 #include <assimp/IOStream.hpp>
 
 #ifdef ASSIMP_BUILD_NO_OWN_ZLIB
@@ -58,7 +56,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "../contrib/zlib/zlib.h"
 #endif
 
-#include <time.h>
+#include <ctime>
 
 #if _MSC_VER
 #pragma warning(push)
@@ -172,7 +170,7 @@ inline size_t Write<aiQuaternion>(IOStream *stream, const aiQuaternion &v) {
     t += Write<float>(stream, v.z);
     ai_assert(t == 16);
 
-    return 16;
+    return t;
 }
 
 // -----------------------------------------------------------------------------------
@@ -277,7 +275,7 @@ public:
         // empty
     }
 
-    virtual ~AssbinChunkWriter() {
+    ~AssbinChunkWriter() override {
         if (container) {
             container->Write(&magic, sizeof(uint32_t), 1);
             container->Write(&cursor, sizeof(uint32_t), 1);
@@ -288,26 +286,27 @@ public:
 
     void *GetBufferPointer() { return buffer; }
 
-    // -------------------------------------------------------------------
+    size_t Read(void * /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) override {
-    virtual size_t Read(void * /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) {
         return 0;
     }
-    virtual aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) {
+    
+    aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) override {
         return aiReturn_FAILURE;
     }
-    virtual size_t Tell() const {
+    
+    size_t Tell() const override {
         return cursor;
     }
-    virtual void Flush() {
+    
+    void Flush() override {
         // not implemented
     }
 
-    virtual size_t FileSize() const {
+    size_t FileSize() const override {
         return cursor;
     }
 
-    // -------------------------------------------------------------------
+    size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) override {
-    virtual size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) {
         pSize *= pCount;
         if (cursor + pSize > cur_size) {
             Grow(cursor + pSize);

code/AssetLib/Assbin/AssbinLoader.cpp

@@ -406,7 +406,7 @@ void AssbinImporter::ReadBinaryMesh(IOStream *stream, aiMesh *mesh) {
             f.mIndices = new unsigned int[f.mNumIndices];
 
             for (unsigned int a = 0; a < f.mNumIndices; ++a) {
-                // Check if unsigned  short ( 16 bit  ) are big enought for the indices
+                // Check if unsigned  short ( 16 bit  ) are big enough for the indices
                 if (fitsIntoUI16(mesh->mNumVertices)) {
                     f.mIndices[a] = Read<uint16_t>(stream);
                 } else {
@@ -671,7 +671,7 @@ void AssbinImporter::ReadBinaryScene(IOStream *stream, aiScene *scene) {
 void AssbinImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) {
     IOStream *stream = pIOHandler->Open(pFile, "rb");
     if (nullptr == stream) {
-        return;
+        throw DeadlyImportError("ASSBIN: Could not open ", pFile);
     }
 
     // signature

code/AssetLib/Assbin/AssbinLoader.h

@@ -5,7 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -74,17 +73,11 @@ private:
     bool compressed;
 
 public:
-    virtual bool CanRead(
+    bool CanRead(const std::string& pFile,
-        const std::string& pFile,
+        IOSystem* pIOHandler, bool checkSig) const override;
-        IOSystem* pIOHandler,
+    const aiImporterDesc* GetInfo() const override;
-        bool checkSig
+    void InternReadFile(
-    ) const;
+    const std::string& pFile,aiScene* pScene,IOSystem* pIOHandler) override;
-    virtual const aiImporterDesc* GetInfo() const;
-    virtual void InternReadFile(
-    const std::string& pFile,
-        aiScene* pScene,
-        IOSystem* pIOHandler
-    );
     void ReadHeader();
     void ReadBinaryScene( IOStream * stream, aiScene* pScene );
     void ReadBinaryNode( IOStream * stream, aiNode** mRootNode, aiNode* parent );

code/AssetLib/Assjson/json_exporter.cpp

@@ -41,12 +41,17 @@ public:
     enum {
         Flag_DoNotIndent = 0x1,
         Flag_WriteSpecialFloats = 0x2,
+        Flag_SkipWhitespaces = 0x4
     };
     
     JSONWriter(Assimp::IOStream &out, unsigned int flags = 0u) :
-            out(out), first(), flags(flags) {
+            out(out), indent (""), newline("\n"), space(" "), buff (), first(false), flags(flags) {
         // make sure that all formatting happens using the standard, C locale and not the user's current locale
         buff.imbue(std::locale("C"));
+        if (flags & Flag_SkipWhitespaces) {
+            newline = "";
+            space = "";
+        }
     }
 
     ~JSONWriter() {
@@ -70,7 +75,7 @@ public:
     void Key(const std::string &name) {
         AddIndentation();
         Delimit();
-        buff << '\"' + name + "\": ";
+        buff << '\"' + name + "\":" << space;
     }
 
     template <typename Literal>
@@ -78,12 +83,12 @@ public:
         AddIndentation();
         Delimit();
 
-        LiteralToString(buff, name) << '\n';
+        LiteralToString(buff, name) << newline;
     }
 
     template <typename Literal>
     void SimpleValue(const Literal &s) {
-        LiteralToString(buff, s) << '\n';
+        LiteralToString(buff, s) << newline;
     }
 
     void SimpleValue(const void *buffer, size_t len) {
@@ -102,7 +107,7 @@ public:
             }
         }
 
-        buff << '\"' << cur_out << "\"\n";
+        buff << '\"' << cur_out << "\"" << newline;
         delete[] cur_out;
     }
 
@@ -115,7 +120,7 @@ public:
             }
         }
         first = true;
-        buff << "{\n";
+        buff << "{" << newline;
         PushIndent();
     }
 
@@ -123,7 +128,7 @@ public:
         PopIndent();
         AddIndentation();
         first = false;
-        buff << "}\n";
+        buff << "}" << newline;
     }
 
     void StartArray(bool is_element = false) {
@@ -135,19 +140,19 @@ public:
             }
         }
         first = true;
-        buff << "[\n";
+        buff << "[" << newline;
         PushIndent();
     }
 
     void EndArray() {
         PopIndent();
         AddIndentation();
-        buff << "]\n";
+        buff << "]" << newline;
         first = false;
     }
 
     void AddIndentation() {
-        if (!(flags & Flag_DoNotIndent)) {
+        if (!(flags & Flag_DoNotIndent) && !(flags & Flag_SkipWhitespaces)) {
             buff << indent;
         }
     }
@@ -156,7 +161,7 @@ public:
         if (!first) {
             buff << ',';
         } else {
-            buff << ' ';
+            buff << space;
             first = false;
         }
     }
@@ -227,7 +232,9 @@ private:
 
 private:
     Assimp::IOStream &out;
-    std::string indent, newline;
+    std::string indent;
+    std::string newline;
+    std::string space;
     std::stringstream buff;
     bool first;
 
@@ -765,7 +772,7 @@ void Write(JSONWriter &out, const aiScene &ai) {
     out.EndObj();
 }
 
-void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *scene, const Assimp::ExportProperties *) {
+void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *scene, const Assimp::ExportProperties *pProperties) {
     std::unique_ptr<Assimp::IOStream> str(io->Open(file, "wt"));
     if (!str) {
         throw DeadlyExportError("could not open output file");
@@ -782,7 +789,12 @@ void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *sc
         splitter.Execute(scenecopy_tmp);
 
         // XXX Flag_WriteSpecialFloats is turned on by default, right now we don't have a configuration interface for exporters
-        JSONWriter s(*str, JSONWriter::Flag_WriteSpecialFloats);
+
+        unsigned int flags = JSONWriter::Flag_WriteSpecialFloats;
+        if (pProperties->GetPropertyBool("JSON_SKIP_WHITESPACES", false)) {
+            flags |= JSONWriter::Flag_SkipWhitespaces;
+        }
+        JSONWriter s(*str, flags);
         Write(s, *scenecopy_tmp);
 
     } catch (...) {

code/AssetLib/Assjson/mesh_splitter.cpp

@@ -69,13 +69,12 @@ void MeshSplitter::UpdateNode(aiNode* pcNode, const std::vector<std::pair<aiMesh
 	for (unsigned int i = 0, end = pcNode->mNumChildren; i < end;++i)	{
 		UpdateNode ( pcNode->mChildren[i], source_mesh_map );
 	}
-	return;
 }
 
-#define WAS_NOT_COPIED 0xffffffff
+static const unsigned int WAS_NOT_COPIED = 0xffffffff;
 
-typedef std::pair <unsigned int,float> PerVertexWeight;
+using PerVertexWeight = std::pair <unsigned int,float>;
-typedef std::vector	<PerVertexWeight> VertexWeightTable;
+using VertexWeightTable = std::vector	<PerVertexWeight>;
 
 // ------------------------------------------------------------------------------------------------
 VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh) {
@@ -89,7 +88,7 @@ VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh) {
 		aiBone* bone = pMesh->mBones[i];
 		for (unsigned int a = 0; a < bone->mNumWeights;++a)	{
 			const aiVertexWeight& weight = bone->mWeights[a];
-			avPerVertexWeights[weight.mVertexId].push_back( std::make_pair(i,weight.mWeight) );
+			avPerVertexWeights[weight.mVertexId].emplace_back(i,weight.mWeight);
 		}
 	}
 	return avPerVertexWeights;
@@ -100,7 +99,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 	// TODO: should better use std::(multi)set for source_mesh_map.
 
 	if (in_mesh->mNumVertices <= LIMIT)	{
-		source_mesh_map.push_back(std::make_pair(in_mesh,a));
+		source_mesh_map.emplace_back(in_mesh,a);
 		return;
 	}
 
@@ -187,7 +186,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 				break;
 			}
 
-			vFaces.push_back(aiFace());
+			vFaces.emplace_back();
 			aiFace& rFace = vFaces.back();
 
 			// setup face type and number of indices

code/AssetLib/Assjson/mesh_splitter.h

@@ -24,10 +24,9 @@ struct aiNode;
 /** Splits meshes of unique vertices into meshes with no more vertices than
  *  a given, configurable threshold value.
  */
-class MeshSplitter 
+class MeshSplitter {
-{
-
 public:
+    unsigned int LIMIT;
 
     void SetLimit(unsigned int l) {
         LIMIT = l;
@@ -37,8 +36,6 @@ public:
         return LIMIT;
     }
 
-public:
-
     // -------------------------------------------------------------------
     /** Executes the post processing step on the given imported data.
 	 * At the moment a process is not supposed to fail.
@@ -46,16 +43,10 @@ public:
 	 */
     void Execute(aiScene *pScene);
 
-
 private:
-
     void UpdateNode(aiNode *pcNode, const std::vector<std::pair<aiMesh *, unsigned int>> &source_mesh_map);
     void SplitMesh(unsigned int index, aiMesh *mesh, std::vector<std::pair<aiMesh *, unsigned int>> &source_mesh_map);
 
-public:
-
-	unsigned int LIMIT;
 };
 
 #endif // INCLUDED_MESH_SPLITTER
-

code/AssetLib/Assxml/AssxmlExporter.h

@@ -43,6 +43,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssxmlExporter.h
  * ASSXML Exporter Main Header
  */
+#pragma once
 #ifndef AI_ASSXMLEXPORTER_H_INC
 #define AI_ASSXMLEXPORTER_H_INC
 

code/AssetLib/Assxml/AssxmlFileWriter.cpp

@@ -168,7 +168,7 @@ static void WriteNode(const aiNode *node, IOStream *io, unsigned int depth) {
 }
 
 // -----------------------------------------------------------------------------------
-// Some chuncks of text will need to be encoded for XML
+// Some chunks of text will need to be encoded for XML
 // http://stackoverflow.com/questions/5665231/most-efficient-way-to-escape-xml-html-in-c-string#5665377
 static std::string encodeXML(const std::string &data) {
     std::string buffer;
@@ -598,8 +598,11 @@ static void WriteDump(const char *pFile, const char *cmd, const aiScene *scene,
                 if (!mesh->mTextureCoords[a])
                     break;
 
-                ioprintf(io, "\t\t<TextureCoords num=\"%u\" set=\"%u\" num_components=\"%u\"> \n", mesh->mNumVertices,
+                ioprintf(io, "\t\t<TextureCoords num=\"%u\" set=\"%u\" name=\"%s\" num_components=\"%u\"> \n",
-                        a, mesh->mNumUVComponents[a]);
+                         mesh->mNumVertices,
+                         a,
+                         (mesh->HasTextureCoordsName(a) ? mesh->GetTextureCoordsName(a)->C_Str() : ""),
+                         mesh->mNumUVComponents[a]);
 
                 if (!shortened) {
                     if (mesh->mNumUVComponents[a] == 3) {

code/AssetLib/Assxml/AssxmlFileWriter.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,7 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssxmlFileWriter.h
  *  @brief Declaration of Assxml file writer.
  */
-
+#pragma once
 #ifndef AI_ASSXMLFILEWRITER_H_INC
 #define AI_ASSXMLFILEWRITER_H_INC
 

code/AssetLib/B3D/B3DImporter.cpp

@@ -143,9 +143,9 @@ AI_WONT_RETURN void B3DImporter::Oops() {
 }
 
 // ------------------------------------------------------------------------------------------------
-AI_WONT_RETURN void B3DImporter::Fail(string str) {
+AI_WONT_RETURN void B3DImporter::Fail(const string &str) {
 #ifdef DEBUG_B3D
-    ASSIMP_LOG_ERROR_F("Error in B3D file data: ", str);
+    ASSIMP_LOG_ERROR("Error in B3D file data: ", str);
 #endif
     throw DeadlyImportError("B3D Importer - error in B3D file data: ", str);
 }
@@ -233,7 +233,7 @@ string B3DImporter::ReadChunk() {
         tag += char(ReadByte());
     }
 #ifdef DEBUG_B3D
-    ASSIMP_LOG_DEBUG_F("ReadChunk: ", tag);
+    ASSIMP_LOG_DEBUG("ReadChunk: ", tag);
 #endif
     unsigned sz = (unsigned)ReadInt();
     _stack.push_back(_pos + sz);
@@ -397,7 +397,7 @@ void B3DImporter::ReadTRIS(int v0) {
         matid = 0;
     } else if (matid < 0 || matid >= (int)_materials.size()) {
 #ifdef DEBUG_B3D
-        ASSIMP_LOG_ERROR_F("material id=", matid);
+        ASSIMP_LOG_ERROR("material id=", matid);
 #endif
         Fail("Bad material id");
     }
@@ -417,7 +417,7 @@ void B3DImporter::ReadTRIS(int v0) {
         int i2 = ReadInt() + v0;
         if (i0 < 0 || i0 >= (int)_vertices.size() || i1 < 0 || i1 >= (int)_vertices.size() || i2 < 0 || i2 >= (int)_vertices.size()) {
 #ifdef DEBUG_B3D
-            ASSIMP_LOG_ERROR_F("Bad triangle index: i0=", i0, ", i1=", i1, ", i2=", i2);
+            ASSIMP_LOG_ERROR("Bad triangle index: i0=", i0, ", i1=", i1, ", i2=", i2);
 #endif
             Fail("Bad triangle index");
             continue;

code/AssetLib/B3D/B3DImporter.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -40,8 +39,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 
-/** @file Definition of the .b3d importer class. */
+/**
-
+ *  @file Definition of the .b3d importer class.
+ */
+#pragma once
 #ifndef AI_B3DIMPORTER_H_INC
 #define AI_B3DIMPORTER_H_INC
 
@@ -62,14 +63,12 @@ namespace Assimp{
 class B3DImporter : public BaseImporter{
 public:
     B3DImporter() = default;
-    virtual ~B3DImporter();
+    ~B3DImporter() override;
-
+    bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const override;
-    virtual bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const;
 
 protected:
-
+    const aiImporterDesc* GetInfo () const override;
-    virtual const aiImporterDesc* GetInfo () const;
+    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
-    virtual void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
 
 private:
 
@@ -96,7 +95,7 @@ private:
     };
 
     AI_WONT_RETURN void Oops() AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Fail( std::string str ) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Fail(const std::string &str) AI_WONT_RETURN_SUFFIX;
 
     void ReadTEXS();
     void ReadBRUS();
@@ -113,7 +112,6 @@ private:
     void ReadBB3D( aiScene *scene );
 
     size_t _pos;
-//  unsigned _size;
     std::vector<unsigned char> _buf;
     std::vector<size_t> _stack;
 

code/AssetLib/BVH/BVHLoader.cpp

@@ -100,7 +100,7 @@ bool BVHLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool cs)
         return true;
 
     if ((!extension.length() || cs) && pIOHandler) {
-        const char *tokens[] = { "HIERARCHY" };
+        static const char * const tokens[] = { "HIERARCHY" };
         return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
     return false;
@@ -178,7 +178,7 @@ void BVHLoader::ReadHierarchy(aiScene *pScene) {
 }
 
 // ------------------------------------------------------------------------------------------------
-// Reads a node and recursively its childs and returns the created node;
+// Reads a node and recursively its children and returns the created node;
 aiNode *BVHLoader::ReadNode() {
     // first token is name
     std::string nodeName = GetNextToken();
@@ -359,7 +359,7 @@ void BVHLoader::ReadMotion(aiScene * /*pScene*/) {
 std::string BVHLoader::GetNextToken() {
     // skip any preceding whitespace
     while (mReader != mBuffer.end()) {
-        if (!isspace(*mReader))
+        if (!isspace((unsigned char)*mReader))
             break;
 
         // count lines
@@ -372,7 +372,7 @@ std::string BVHLoader::GetNextToken() {
     // collect all chars till the next whitespace. BVH is easy in respect to that.
     std::string token;
     while (mReader != mBuffer.end()) {
-        if (isspace(*mReader))
+        if (isspace((unsigned char)*mReader))
             break;
 
         token.push_back(*mReader);

code/AssetLib/BVH/BVHLoader.h

@@ -112,7 +112,7 @@ protected:
     /** Reads the hierarchy */
     void ReadHierarchy(aiScene *pScene);
 
-    /** Reads a node and recursively its childs and returns the created node. */
+    /** Reads a node and recursively its children and returns the created node. */
     aiNode *ReadNode();
 
     /** Reads an end node and returns the created node. */

code/AssetLib/Blender/BlenderDNA.cpp

@@ -198,9 +198,9 @@ void DNAParser::Parse() {
         s.size = offset;
     }
 
-    ASSIMP_LOG_DEBUG_F("BlenderDNA: Got ", dna.structures.size(), " structures with totally ", fields, " fields");
+    ASSIMP_LOG_DEBUG("BlenderDNA: Got ", dna.structures.size(), " structures with totally ", fields, " fields");
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
     dna.DumpToFile();
 #endif
 
@@ -208,7 +208,7 @@ void DNAParser::Parse() {
     dna.RegisterConverters();
 }
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
 
 #include <fstream>
 // ------------------------------------------------------------------------------------------------
@@ -237,7 +237,7 @@ void DNA ::DumpToFile() {
 
     ASSIMP_LOG_INFO("BlenderDNA: Dumped dna to dna.txt");
 }
-#endif
+#endif // ASSIMP_BUILD_BLENDER_DEBUG_DNA
 
 // ------------------------------------------------------------------------------------------------
 /*static*/ void DNA ::ExtractArraySize(

code/AssetLib/Blender/BlenderDNA.h

@@ -59,6 +59,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define ASSIMP_BUILD_BLENDER_DEBUG
 #endif
 
+// set this to non-zero to dump BlenderDNA stuff to dna.txt.
+// you could set it on the assimp build command line too without touching it here.
+// !!! please make sure this is set to 0 in the repo !!!
+#ifndef ASSIMP_BUILD_BLENDER_DEBUG_DNA
+#define ASSIMP_BUILD_BLENDER_DEBUG_DNA 0
+#endif
+
 // #define ASSIMP_BUILD_BLENDER_NO_STATS
 
 namespace Assimp {
@@ -469,7 +476,7 @@ public:
      *  in BlenderScene.cpp and is machine-generated.
      *  Converters are used to quickly handle objects whose
      *  exact data type is a runtime-property and not yet
-     *  known at compile time (consier Object::data).*/
+     *  known at compile time (consider Object::data).*/
     void RegisterConverters();
 
     // --------------------------------------------------------
@@ -495,7 +502,7 @@ public:
             const Structure &structure,
             const FileDatabase &db) const;
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
     // --------------------------------------------------------
     /** Dump the DNA to a text file. This is for debugging purposes.
      *  The output file is `dna.txt` in the current working folder*/

code/AssetLib/Blender/BlenderDNA.inl

@@ -565,7 +565,7 @@ template <> bool Structure :: ResolvePointer<std::shared_ptr,ElemBase>(std::shar
         // this might happen if DNA::RegisterConverters hasn't been called so far
         // or if the target type is not contained in `our` DNA.
         out.reset();
-        ASSIMP_LOG_WARN_F( "Failed to find a converter for the `",s.name,"` structure" );
+        ASSIMP_LOG_WARN( "Failed to find a converter for the `",s.name,"` structure" );
         return false;
     }
 

code/AssetLib/Blender/BlenderLoader.cpp

@@ -88,7 +88,7 @@ using namespace Assimp::Blender;
 using namespace Assimp::Formatter;
 
 static const aiImporterDesc blenderDesc = {
-    "Blender 3D Importer \nhttp://www.blender3d.org",
+    "Blender 3D Importer (http://www.blender3d.org)",
     "",
     "",
     "No animation support yet",
@@ -113,8 +113,8 @@ BlenderImporter::~BlenderImporter() {
     delete modifier_cache;
 }
 
-static const char *Tokens[] = { "BLENDER" };
+static const char * const Tokens[] = { "BLENDER" };
-static const char *TokensForSearch[] = { "blender" };
+static const char * const TokensForSearch[] = { "blender" };
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
@@ -132,12 +132,6 @@ bool BlenderImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bo
     return false;
 }
 
-// ------------------------------------------------------------------------------------------------
-// List all extensions handled by this loader
-void BlenderImporter::GetExtensionList(std::set<std::string> &app) {
-    app.insert("blend");
-}
-
 // ------------------------------------------------------------------------------------------------
 // Loader registry entry
 const aiImporterDesc *BlenderImporter::GetInfo() const {
@@ -241,9 +235,9 @@ void BlenderImporter::InternReadFile(const std::string &pFile,
     stream->Read(magic, 3, 1);
     magic[3] = '\0';
 
-    LogInfo((format(), "Blender version is ", magic[0], ".", magic + 1,
+    LogInfo("Blender version is ", magic[0], ".", magic + 1,
             " (64bit: ", file.i64bit ? "true" : "false",
-            ", little endian: ", file.little ? "true" : "false", ")"));
+            ", little endian: ", file.little ? "true" : "false", ")");
 
     ParseBlendFile(file, stream);
 
@@ -316,7 +310,7 @@ void BlenderImporter::ExtractScene(Scene &out, const FileDatabase &file) {
     ss.Convert(out, file);
 
 #ifndef ASSIMP_BUILD_BLENDER_NO_STATS
-    ASSIMP_LOG_INFO_F(
+    ASSIMP_LOG_INFO(
             "(Stats) Fields read: ", file.stats().fields_read,
             ", pointers resolved: ", file.stats().pointers_resolved,
             ", cache hits: ", file.stats().cache_hits,
@@ -426,9 +420,9 @@ void BlenderImporter::ResolveImage(aiMaterial *out, const Material *mat, const M
             --s;
         }
 
-        curTex->achFormatHint[0] = s + 1 > e ? '\0' : (char)::tolower(s[1]);
+        curTex->achFormatHint[0] = s + 1 > e ? '\0' : (char)::tolower((unsigned char)s[1]);
-        curTex->achFormatHint[1] = s + 2 > e ? '\0' : (char)::tolower(s[2]);
+        curTex->achFormatHint[1] = s + 2 > e ? '\0' : (char)::tolower((unsigned char)s[2]);
-        curTex->achFormatHint[2] = s + 3 > e ? '\0' : (char)::tolower(s[3]);
+        curTex->achFormatHint[2] = s + 3 > e ? '\0' : (char)::tolower((unsigned char)s[3]);
         curTex->achFormatHint[3] = '\0';
 
         // tex->mHeight = 0;
@@ -440,7 +434,7 @@ void BlenderImporter::ResolveImage(aiMaterial *out, const Material *mat, const M
 
         curTex->pcData = reinterpret_cast<aiTexel *>(ch);
 
-        LogInfo("Reading embedded texture, original file was " + std::string(img->name));
+        LogInfo("Reading embedded texture, original file was ", img->name);
     } else {
         name = aiString(img->name);
     }
@@ -522,7 +516,7 @@ void BlenderImporter::ResolveTexture(aiMaterial *out, const Material *mat, const
     case Tex::Type_POINTDENSITY:
     case Tex::Type_VOXELDATA:
 
-        LogWarn(std::string("Encountered a texture with an unsupported type: ") + dispnam);
+        LogWarn("Encountered a texture with an unsupported type: ", dispnam);
         AddSentinelTexture(out, mat, tex, conv_data);
         break;
 
@@ -685,7 +679,7 @@ void BlenderImporter::BuildMaterials(ConversionData &conv_data) {
 
     BuildDefaultMaterial(conv_data);
 
-    for (std::shared_ptr<Material> mat : conv_data.materials_raw) {
+    for (const std::shared_ptr<Material> &mat : conv_data.materials_raw) {
 
         // reset per material global counters
         for (size_t i = 0; i < sizeof(conv_data.next_texture) / sizeof(conv_data.next_texture[0]); ++i) {
@@ -758,7 +752,7 @@ void BlenderImporter::CheckActualType(const ElemBase *dt, const char *check) {
 
 // ------------------------------------------------------------------------------------------------
 void BlenderImporter::NotSupportedObjectType(const Object *obj, const char *type) {
-    LogWarn((format(), "Object `", obj->id.name, "` - type is unsupported: `", type, "`, skipping"));
+    LogWarn("Object `", obj->id.name, "` - type is unsupported: `", type, "`, skipping");
 }
 
 // ------------------------------------------------------------------------------------------------

code/AssetLib/Blender/BlenderLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,6 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file  BlenderLoader.h
  *  @brief Declaration of the Blender 3D (*.blend) importer class.
  */
+#pragma once
 #ifndef INCLUDED_AI_BLEND_LOADER_H
 #define INCLUDED_AI_BLEND_LOADER_H
 
@@ -60,15 +60,19 @@ namespace Assimp    {
 
 // TinyFormatter.h
 namespace Formatter {
-        template <typename T,typename TR, typename A> class basic_formatter;
+
+template <typename T, typename TR, typename A>
+class basic_formatter;
+
 typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
-    }
+
+} // namespace Formatter
 
 // BlenderDNA.h
 namespace Blender {
 class FileDatabase;
 struct ElemBase;
-    }
+} // namespace Blender
 
 // BlenderScene.h
 namespace Blender {
@@ -80,39 +84,36 @@ namespace Assimp    {
 struct MTex;
 struct Image;
 struct Material;
-    }
+} // namespace Blender
 
 // BlenderIntermediate.h
 namespace Blender {
 struct ConversionData;
-        template <template <typename,typename> class TCLASS, typename T> struct TempArray;
+template <template <typename, typename> class TCLASS, typename T>
-    }
+struct TempArray;
+} // namespace Blender
 
 // BlenderModifier.h
 namespace Blender {
 class BlenderModifierShowcase;
 class BlenderModifier;
-    }
+} // namespace Blender
-
-
 
 // -------------------------------------------------------------------------------------------
 /** Load blenders official binary format. The actual file structure (the `DNA` how they
  *  call it is outsourced to BlenderDNA.cpp/BlenderDNA.h. This class only performs the
  *  conversion from intermediate format to aiScene. */
 // -------------------------------------------------------------------------------------------
-class BlenderImporter : public BaseImporter, public LogFunctions<BlenderImporter>
+class BlenderImporter : public BaseImporter, public LogFunctions<BlenderImporter> {
-{
 public:
     BlenderImporter();
-    ~BlenderImporter();
+    ~BlenderImporter() override;
-    bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
 
 protected:
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc *GetInfo() const override;
-    void GetExtensionList(std::set<std::string>& app);
+    void SetupProperties(const Importer *pImp) override;
-    void SetupProperties(const Importer* pImp);
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
-    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
     void ParseBlendFile(Blender::FileDatabase &out, std::shared_ptr<IOStream> stream);
     void ExtractScene(Blender::Scene &out, const Blender::FileDatabase &file);
     void ConvertBlendFile(aiScene *out, const Blender::Scene &in, const Blender::FileDatabase &file);
@@ -121,52 +122,46 @@ private:
     aiNode *ConvertNode(const Blender::Scene &in,
             const Blender::Object *obj,
             Blender::ConversionData &conv_info,
-        const aiMatrix4x4& parentTransform
+            const aiMatrix4x4 &parentTransform);
-    );
 
     // --------------------
     void ConvertMesh(const Blender::Scene &in,
             const Blender::Object *obj,
             const Blender::Mesh *mesh,
             Blender::ConversionData &conv_data,
-        Blender::TempArray<std::vector,aiMesh>& temp
+            Blender::TempArray<std::vector, aiMesh> &temp);
-    );
 
     // --------------------
     aiLight *ConvertLight(const Blender::Scene &in,
             const Blender::Object *obj,
             const Blender::Lamp *mesh,
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
     // --------------------
     aiCamera *ConvertCamera(const Blender::Scene &in,
             const Blender::Object *obj,
             const Blender::Camera *mesh,
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
     // --------------------
     void BuildDefaultMaterial(
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
+    // --------------------
     void AddBlendParams(
             aiMaterial *result,
-        const Blender::Material* source
+            const Blender::Material *source);
-    );
 
+    // --------------------
     void BuildMaterials(
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
     // --------------------
     void ResolveTexture(
             aiMaterial *out,
             const Blender::Material *mat,
             const Blender::MTex *tex,
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
     // --------------------
     void ResolveImage(
@@ -174,31 +169,25 @@ private:
             const Blender::Material *mat,
             const Blender::MTex *tex,
             const Blender::Image *img,
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
+    // --------------------
     void AddSentinelTexture(
             aiMaterial *out,
             const Blender::Material *mat,
             const Blender::MTex *tex,
-        Blender::ConversionData& conv_data
+            Blender::ConversionData &conv_data);
-    );
 
 private: // static stuff, mostly logging and error reporting.
-
     // --------------------
     static void CheckActualType(const Blender::ElemBase *dt,
-        const char* check
+            const char *check);
-    );
 
     // --------------------
     static void NotSupportedObjectType(const Blender::Object *obj,
-        const char* type
+            const char *type);
-    );
-
 
 private:
-
     Blender::BlenderModifierShowcase *modifier_cache;
 
 }; // !class BlenderImporter

code/AssetLib/Blender/BlenderModifier.cpp

@@ -90,7 +90,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
 
         const Structure *s = conv_data.db.dna.Get(cur->dna_type);
         if (!s) {
-            ASSIMP_LOG_WARN_F("BlendModifier: could not resolve DNA name: ", cur->dna_type);
+            ASSIMP_LOG_WARN("BlendModifier: could not resolve DNA name: ", cur->dna_type);
             continue;
         }
 
@@ -132,7 +132,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
             }
         }
         if (curgod) {
-            ASSIMP_LOG_WARN_F("Couldn't find a handler for modifier: ", dat.name);
+            ASSIMP_LOG_WARN("Couldn't find a handler for modifier: ", dat.name);
         }
     }
 
@@ -140,7 +140,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
     // object, we still can't say whether our modifier implementations were
     // able to fully do their job.
     if (ful) {
-        ASSIMP_LOG_DEBUG_F("BlendModifier: found handlers for ", cnt, " of ", ful, " modifiers on `", orig_object.id.name,
+        ASSIMP_LOG_DEBUG("BlendModifier: found handlers for ", cnt, " of ", ful, " modifiers on `", orig_object.id.name,
                 "`, check log messages above for errors");
     }
 }
@@ -248,7 +248,7 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
     out.mMeshes = nind;
     out.mNumMeshes *= 2;
 
-    ASSIMP_LOG_INFO_F("BlendModifier: Applied the `Mirror` modifier to `",
+    ASSIMP_LOG_INFO("BlendModifier: Applied the `Mirror` modifier to `",
             orig_object.id.name, "`");
 }
 
@@ -277,7 +277,7 @@ void BlenderModifier_Subdivision ::DoIt(aiNode &out, ConversionData &conv_data,
         break;
 
     default:
-        ASSIMP_LOG_WARN_F("BlendModifier: Unrecognized subdivision algorithm: ", mir.subdivType);
+        ASSIMP_LOG_WARN("BlendModifier: Unrecognized subdivision algorithm: ", mir.subdivType);
         return;
     };
 
@@ -292,7 +292,7 @@ void BlenderModifier_Subdivision ::DoIt(aiNode &out, ConversionData &conv_data,
     subd->Subdivide(meshes, out.mNumMeshes, tempmeshes.get(), std::max(mir.renderLevels, mir.levels), true);
     std::copy(tempmeshes.get(), tempmeshes.get() + out.mNumMeshes, meshes);
 
-    ASSIMP_LOG_INFO_F("BlendModifier: Applied the `Subdivision` modifier to `",
+    ASSIMP_LOG_INFO("BlendModifier: Applied the `Subdivision` modifier to `",
             orig_object.id.name, "`");
 }
 

code/AssetLib/Blender/BlenderModifier.h

@@ -86,7 +86,7 @@ public:
         const Scene& /*in*/,
         const Object& /*orig_object*/
     ) {
-        ASSIMP_LOG_INFO_F("This modifier is not supported, skipping: ",orig_modifier.dna_type );
+        ASSIMP_LOG_INFO("This modifier is not supported, skipping: ",orig_modifier.dna_type );
         return;
     }
 };

code/AssetLib/C4D/C4DImporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2021, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -51,7 +51,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #endif
 
 #include "C4DImporter.h"
-#include <assimp/TinyFormatter.h>
 #include <memory>
 #include <assimp/IOSystem.hpp>
 #include <assimp/scene.h>
@@ -65,7 +64,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "c4d_file.h"
 #include "default_alien_overloads.h"
 
-using namespace melange;
+namespace {
+
+aiString aiStringFrom(cineware::String const & cinestring) {
+    aiString result;
+    cinestring.GetCString(result.data, MAXLEN-1);
+    result.length = static_cast<ai_uint32>(cinestring.GetLength());
+    return result;
+}
+
+}
+
+using namespace Assimp;
+using namespace cineware;
 
 // overload this function and fill in your own unique data
 void GetWriterInfo(int &id, String &appname) {
@@ -73,9 +84,6 @@ void GetWriterInfo(int &id, String &appname) {
     appname = "Open Asset Import Library";
 }
 
-using namespace Assimp;
-using namespace Assimp::Formatter;
-
 namespace Assimp {
     template<> const char* LogFunctions<C4DImporter>::Prefix() {
         static auto prefix = "C4D: ";
@@ -97,17 +105,6 @@ static const aiImporterDesc desc = {
 };
 
 
-// ------------------------------------------------------------------------------------------------
-C4DImporter::C4DImporter()
-: BaseImporter() {
-    // empty
-}
-
-// ------------------------------------------------------------------------------------------------
-C4DImporter::~C4DImporter() {
-    // empty
-}
-
 // ------------------------------------------------------------------------------------------------
 bool C4DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
     const std::string& extension = GetExtension(pFile);
@@ -125,11 +122,6 @@ const aiImporterDesc* C4DImporter::GetInfo () const {
     return &desc;
 }
 
-// ------------------------------------------------------------------------------------------------
-void C4DImporter::SetupProperties(const Importer* /*pImp*/) {
-    // nothing to be done for the moment
-}
-
 
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
@@ -154,8 +146,14 @@ void C4DImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOS
         ThrowException("failed to read document " + pFile);
     }
 
+    // Generate the root-node
     pScene->mRootNode = new aiNode("<C4DRoot>");
 
+    // convert left-handed to right-handed
+    pScene->mRootNode->mTransformation.a1 = 0.01f;
+    pScene->mRootNode->mTransformation.b2 = 0.01f;
+    pScene->mRootNode->mTransformation.c3 = -0.01f;
+
     // first convert all materials
     ReadMaterials(doc->GetFirstMaterial());
 
@@ -199,8 +197,8 @@ void C4DImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOS
 
 
 // ------------------------------------------------------------------------------------------------
-bool C4DImporter::ReadShader(aiMaterial* out, melange::BaseShader* shader) {
+bool C4DImporter::ReadShader(aiMaterial* out, BaseShader* shader) {
-    // based on Melange sample code (C4DImportExport.cpp)
+    // based on Cineware sample code (C4DImportExport.cpp)
     while(shader) {
         if(shader->GetType() == Xlayer) {
             BaseContainer* container = shader->GetDataInstance();
@@ -242,13 +240,11 @@ bool C4DImporter::ReadShader(aiMaterial* out, melange::BaseShader* shader) {
                 lsl = lsl->GetNext();
             }
         } else if ( shader->GetType() == Xbitmap ) {
-            aiString path;
+            auto const path = aiStringFrom(shader->GetFileName().GetString());
-            shader->GetFileName().GetString().GetCString(path.data, MAXLEN-1);
-            path.length = ::strlen(path.data);
             out->AddProperty(&path, AI_MATKEY_TEXTURE_DIFFUSE(0));
             return true;
         } else {
-            LogWarn("ignoring shader type: " + std::string(GetObjectTypeName(shader->GetType())));
+            LogWarn("ignoring shader type: ", GetObjectTypeName(shader->GetType()));
         }
         shader = shader->GetNext();
     }
@@ -257,18 +253,15 @@ bool C4DImporter::ReadShader(aiMaterial* out, melange::BaseShader* shader) {
 }
 
 // ------------------------------------------------------------------------------------------------
-void C4DImporter::ReadMaterials(melange::BaseMaterial* mat) {
+void C4DImporter::ReadMaterials(BaseMaterial* mat) {
-    // based on Melange sample code
+    // based on Cineware sample code
     while (mat) {
-        const String& name = mat->GetName();
         if (mat->GetType() == Mmaterial) {
             aiMaterial* out = new aiMaterial();
             material_mapping[mat] = static_cast<unsigned int>(materials.size());
             materials.push_back(out);
 
-            aiString ai_name;
+            auto const ai_name = aiStringFrom(mat->GetName());
-            name.GetCString(ai_name.data, MAXLEN-1);
-            ai_name.length = ::strlen(ai_name.data);
             out->AddProperty(&ai_name, AI_MATKEY_NAME);
 
             Material& m = dynamic_cast<Material&>(*mat);
@@ -294,7 +287,7 @@ void C4DImporter::ReadMaterials(melange::BaseMaterial* mat) {
                 ReadShader(out, shader);
             }
         } else {
-            LogWarn("ignoring plugin material: " + std::string(GetObjectTypeName(mat->GetType())));
+            LogWarn("ignoring plugin material: ", GetObjectTypeName(mat->GetType()));
         }
         mat = mat->GetNext();
     }
@@ -305,19 +298,15 @@ void C4DImporter::RecurseHierarchy(BaseObject* object, aiNode* parent) {
     ai_assert(parent != nullptr );
     std::vector<aiNode*> nodes;
 
-    // based on Melange sample code
+    // based on Cineware sample code
     while (object) {
-        const String& name = object->GetName();
         const LONG type = object->GetType();
         const Matrix& ml = object->GetMl();
 
-        aiString string;
-        name.GetCString(string.data, MAXLEN-1);
-        string.length = ::strlen(string.data);
         aiNode* const nd = new aiNode();
 
         nd->mParent = parent;
-        nd->mName = string;
+        nd->mName = aiStringFrom(object->GetName());
 
         nd->mTransformation.a1 = ml.v1.x;
         nd->mTransformation.b1 = ml.v1.y;
@@ -352,7 +341,7 @@ void C4DImporter::RecurseHierarchy(BaseObject* object, aiNode* parent) {
                 meshes.push_back(mesh);
             }
         } else {
-            LogWarn("ignoring object: " + std::string(GetObjectTypeName(type)));
+            LogWarn("ignoring object: ", GetObjectTypeName(type));
         }
 
         RecurseHierarchy(object->GetDown(), nd);
@@ -370,7 +359,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     ai_assert(object != nullptr);
     ai_assert( object->GetType() == Opolygon );
 
-    // based on Melange sample code
+    // based on Cineware sample code
     PolygonObject* const polyObject = dynamic_cast<PolygonObject*>(object);
     ai_assert(polyObject != nullptr);
 
@@ -618,4 +607,3 @@ unsigned int C4DImporter::ResolveMaterial(PolygonObject* obj) {
 }
 
 #endif // ASSIMP_BUILD_NO_C4D_IMPORTER
-

code/AssetLib/C4D/C4DImporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2021, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -56,8 +56,8 @@ struct aiMaterial;
 
 struct aiImporterDesc;
 
-namespace melange {
+namespace cineware {
-    class BaseObject; // c4d_file.h
+    class BaseObject;
     class PolygonObject;
     class BaseMaterial;
     class BaseShader;
@@ -71,43 +71,34 @@ namespace Assimp  {
     }
 
 // -------------------------------------------------------------------------------------------
-/** Importer class to load Cinema4D files using the Melange library to be obtained from
+/** Importer class to load Cinema4D files using the Cineware library to be obtained from
- *  www.plugincafe.com
+ *  https://developers.maxon.net
  *
- *  Note that Melange is not free software. */
+ *  Note that Cineware is not free software. */
 // -------------------------------------------------------------------------------------------
 class C4DImporter : public BaseImporter, public LogFunctions<C4DImporter> {
 public:
-    C4DImporter();
+    bool CanRead( const std::string& pFile, IOSystem*, bool checkSig) const override;
-    ~C4DImporter();
-    bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
 
 protected:
 
-    // --------------------
+    const aiImporterDesc* GetInfo () const override;
-    const aiImporterDesc* GetInfo () const;
 
-    // --------------------
+    void InternReadFile( const std::string& pFile, aiScene*, IOSystem* ) override;
-    void SetupProperties(const Importer* pImp);
-
-    // --------------------
-    void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
 
 private:
 
-    void ReadMaterials(melange::BaseMaterial* mat);
+    void ReadMaterials(cineware::BaseMaterial* mat);
-    void RecurseHierarchy(melange::BaseObject* object, aiNode* parent);
+    void RecurseHierarchy(cineware::BaseObject* object, aiNode* parent);
-    aiMesh* ReadMesh(melange::BaseObject* object);
+    aiMesh* ReadMesh(cineware::BaseObject* object);
-    unsigned int ResolveMaterial(melange::PolygonObject* obj);
+    unsigned int ResolveMaterial(cineware::PolygonObject* obj);
 
-    bool ReadShader(aiMaterial* out, melange::BaseShader* shader);
+    bool ReadShader(aiMaterial* out, cineware::BaseShader* shader);
 
     std::vector<aiMesh*> meshes;
     std::vector<aiMaterial*> materials;
 
-    typedef std::map<melange::BaseMaterial*, unsigned int> MaterialMap;
+    typedef std::map<cineware::BaseMaterial*, unsigned int> MaterialMap;
     MaterialMap material_mapping;
 
 }; // !class C4DImporter

code/AssetLib/COB/COBLoader.cpp

@@ -110,7 +110,7 @@ bool COBImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool c
     }
 
     else if ((!extension.length() || checkSig) && pIOHandler) {
-        const char *tokens[] = { "Caligary" };
+        static const char * const tokens[] = { "Caligary" };
         return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
     return false;
@@ -137,7 +137,13 @@ void COBImporter::SetupProperties(const Importer * /*pImp*/) {
 // Imports the given file into the given scene structure.
 void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) {
     COB::Scene scene;
-    std::unique_ptr<StreamReaderLE> stream(new StreamReaderLE(pIOHandler->Open(pFile, "rb")));
+
+    auto file = pIOHandler->Open(pFile, "rb");
+    if (!file) {
+        ThrowException("Could not open " + pFile);
+    }
+
+    std::unique_ptr<StreamReaderLE> stream(new StreamReaderLE(file));
 
     // check header
     char head[32];
@@ -146,7 +152,7 @@ void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
         ThrowException("Could not found magic id: `Caligari`");
     }
 
-    ASSIMP_LOG_INFO_F("File format tag: ", std::string(head + 9, 6));
+    ASSIMP_LOG_INFO("File format tag: ", std::string(head + 9, 6));
     if (head[16] != 'L') {
         ThrowException("File is big-endian, which is not supported");
     }
@@ -224,7 +230,7 @@ void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 }
 
 // ------------------------------------------------------------------------------------------------
-void ConvertTexture(std::shared_ptr<Texture> tex, aiMaterial *out, aiTextureType type) {
+void ConvertTexture(const std::shared_ptr<Texture> &tex, aiMaterial *out, aiTextureType type) {
     const aiString path(tex->path);
     out->AddProperty(&path, AI_MATKEY_TEXTURE(type, 0));
     out->AddProperty(&tex->transform, 1, AI_MATKEY_UVTRANSFORM(type, 0));
@@ -295,8 +301,7 @@ aiNode *COBImporter::BuildNodes(const Node &root, const Scene &scin, aiScene *fi
                     }
                     std::unique_ptr<const Material> defmat;
                     if (!min) {
-                        ASSIMP_LOG_VERBOSE_DEBUG(format() << "Could not resolve material index "
+                        ASSIMP_LOG_VERBOSE_DEBUG("Could not resolve material index ", reflist.first, " - creating default material for this slot");
-                                                  << reflist.first << " - creating default material for this slot");
 
                         defmat.reset(min = new Material());
                     }
@@ -521,7 +526,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
     ++splitter;
     if (!splitter.match_start("mat# ")) {
-        ASSIMP_LOG_WARN_F("Expected `mat#` line in `Mat1` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `mat#` line in `Mat1` chunk ", nfo.id);
         return;
     }
 
@@ -533,7 +538,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     ++splitter;
 
     if (!splitter.match_start("shader: ")) {
-        ASSIMP_LOG_WARN_F("Expected `mat#` line in `Mat1` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `mat#` line in `Mat1` chunk ", nfo.id);
         return;
     }
     std::string shader = std::string(splitter[1]);
@@ -544,12 +549,12 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     } else if (shader == "phong") {
         mat.shader = Material::PHONG;
     } else if (shader != "flat") {
-        ASSIMP_LOG_WARN_F("Unknown value for `shader` in `Mat1` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Unknown value for `shader` in `Mat1` chunk ", nfo.id);
     }
 
     ++splitter;
     if (!splitter.match_start("rgb ")) {
-        ASSIMP_LOG_WARN_F("Expected `rgb` line in `Mat1` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `rgb` line in `Mat1` chunk ", nfo.id);
     }
 
     const char *rgb = splitter[1];
@@ -557,7 +562,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
     ++splitter;
     if (!splitter.match_start("alpha ")) {
-        ASSIMP_LOG_WARN_F("Expected `alpha` line in `Mat1` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `alpha` line in `Mat1` chunk ", nfo.id);
     }
 
     const char *tokens[10];
@@ -577,23 +582,23 @@ void COBImporter::ReadUnit_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     }
     ++splitter;
     if (!splitter.match_start("Units ")) {
-        ASSIMP_LOG_WARN_F("Expected `Units` line in `Unit` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `Units` line in `Unit` chunk ", nfo.id);
         return;
     }
 
-    // parent chunks preceede their childs, so we should have the
+    // parent chunks preceede their children, so we should have the
     // corresponding chunk already.
     for (std::shared_ptr<Node> &nd : out.nodes) {
         if (nd->id == nfo.parent_id) {
             const unsigned int t = strtoul10(splitter[1]);
 
             nd->unit_scale = t >= sizeof(units) / sizeof(units[0]) ? (
-                                                                             ASSIMP_LOG_WARN_F(t, " is not a valid value for `Units` attribute in `Unit chunk` ", nfo.id), 1.f) :
+                                                                             ASSIMP_LOG_WARN(t, " is not a valid value for `Units` attribute in `Unit chunk` ", nfo.id), 1.f) :
                                                                      units[t];
             return;
         }
     }
-    ASSIMP_LOG_WARN_F("`Unit` chunk ", nfo.id, " is a child of ", nfo.parent_id, " which does not exist");
+    ASSIMP_LOG_WARN("`Unit` chunk ", nfo.id, " is a child of ", nfo.parent_id, " which does not exist");
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -622,13 +627,13 @@ void COBImporter::ReadLght_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     } else if (splitter.match_start("Spot ")) {
         msh.ltype = Light::SPOT;
     } else {
-        ASSIMP_LOG_WARN_F("Unknown kind of light source in `Lght` chunk ", nfo.id, " : ", *splitter);
+        ASSIMP_LOG_WARN("Unknown kind of light source in `Lght` chunk ", nfo.id, " : ", *splitter);
         msh.ltype = Light::SPOT;
     }
 
     ++splitter;
     if (!splitter.match_start("color ")) {
-        ASSIMP_LOG_WARN_F("Expected `color` line in `Lght` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `color` line in `Lght` chunk ", nfo.id);
     }
 
     const char *rgb = splitter[1];
@@ -636,14 +641,14 @@ void COBImporter::ReadLght_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
     SkipSpaces(&rgb);
     if (strncmp(rgb, "cone angle", 10) != 0) {
-        ASSIMP_LOG_WARN_F("Expected `cone angle` entity in `color` line in `Lght` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `cone angle` entity in `color` line in `Lght` chunk ", nfo.id);
     }
     SkipSpaces(rgb + 10, &rgb);
     msh.angle = fast_atof(&rgb);
 
     SkipSpaces(&rgb);
     if (strncmp(rgb, "inner angle", 11) != 0) {
-        ASSIMP_LOG_WARN_F("Expected `inner angle` entity in `color` line in `Lght` chunk ", nfo.id);
+        ASSIMP_LOG_WARN("Expected `inner angle` entity in `color` line in `Lght` chunk ", nfo.id);
     }
     SkipSpaces(rgb + 11, &rgb);
     msh.inner_angle = fast_atof(&rgb);
@@ -663,7 +668,7 @@ void COBImporter::ReadCame_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
     ReadBasicNodeInfo_Ascii(msh, ++splitter, nfo);
 
-    // skip the next line, we don't know this differenciation between a
+    // skip the next line, we don't know this differentiation between a
     // standard camera and a panoramic camera.
     ++splitter;
 }
@@ -1027,7 +1032,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
         mat.type = Material::METAL;
         break;
     default:
-        ASSIMP_LOG_ERROR_F("Unrecognized shader type in `Mat1` chunk with id ", nfo.id);
+        ASSIMP_LOG_ERROR("Unrecognized shader type in `Mat1` chunk with id ", nfo.id);
         mat.type = Material::FLAT;
     }
 
@@ -1042,7 +1047,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
         mat.autofacet = Material::SMOOTH;
         break;
     default:
-        ASSIMP_LOG_ERROR_F("Unrecognized faceting mode in `Mat1` chunk with id ", nfo.id);
+        ASSIMP_LOG_ERROR("Unrecognized faceting mode in `Mat1` chunk with id ", nfo.id);
         mat.autofacet = Material::FACETED;
     }
     mat.autofacet_angle = static_cast<float>(reader.GetI1());
@@ -1164,19 +1169,19 @@ void COBImporter::ReadUnit_Binary(COB::Scene &out, StreamReaderLE &reader, const
 
     const chunk_guard cn(nfo, reader);
 
-    // parent chunks preceede their childs, so we should have the
+    // parent chunks preceede their children, so we should have the
     // corresponding chunk already.
     for (std::shared_ptr<Node> &nd : out.nodes) {
         if (nd->id == nfo.parent_id) {
             const unsigned int t = reader.GetI2();
             nd->unit_scale = t >= sizeof(units) / sizeof(units[0]) ? (
-                                                                             ASSIMP_LOG_WARN_F(t, " is not a valid value for `Units` attribute in `Unit chunk` ", nfo.id), 1.f) :
+                                                                             ASSIMP_LOG_WARN(t, " is not a valid value for `Units` attribute in `Unit chunk` ", nfo.id), 1.f) :
                                                                      units[t];
 
             return;
         }
     }
-    ASSIMP_LOG_WARN_F("`Unit` chunk ", nfo.id, " is a child of ", nfo.parent_id, " which does not exist");
+    ASSIMP_LOG_WARN("`Unit` chunk ", nfo.id, " is a child of ", nfo.parent_id, " which does not exist");
 }
 
 #endif // ASSIMP_BUILD_NO_COB_IMPORTER

code/AssetLib/COB/COBLoader.h

@@ -56,46 +56,44 @@ namespace Assimp    {
 
 // TinyFormatter.h
 namespace Formatter {
-        template <typename T,typename TR, typename A> class basic_formatter;
+template <typename T, typename TR, typename A>
+class basic_formatter;
 typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
-    }
+} // namespace Formatter
 
 // COBScene.h
 namespace COB {
 struct ChunkInfo;
 struct Node;
 struct Scene;
-    }
+} // namespace COB
 
 // -------------------------------------------------------------------------------------------
 /** Importer class to load TrueSpace files (cob,scn) up to v6.
  *
  *  Currently relatively limited, loads only ASCII files and needs more test coverage. */
 // -------------------------------------------------------------------------------------------
-class COBImporter : public BaseImporter
+class COBImporter : public BaseImporter {
-{
 public:
     COBImporter();
-    ~COBImporter();
+    ~COBImporter() override;
 
     // --------------------
     bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
-        bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
+    // --------------------
+    const aiImporterDesc *GetInfo() const override;
 
     // --------------------
-    const aiImporterDesc* GetInfo () const;
+    void SetupProperties(const Importer *pImp) override;
-
-    // --------------------
-    void SetupProperties(const Importer* pImp);
 
     // --------------------
     void InternReadFile(const std::string &pFile, aiScene *pScene,
-        IOSystem* pIOHandler);
+            IOSystem *pIOHandler) override;
 
 private:
-
     // -------------------------------------------------------------------
     /** Prepend 'COB: ' and throw msg.*/
     AI_WONT_RETURN static void ThrowException(const std::string &msg) AI_WONT_RETURN_SUFFIX;
@@ -113,7 +111,6 @@ private:
     void ReadBinaryFile(COB::Scene &out, StreamReaderLE *stream);
 
     // Conversion to Assimp output format
-
     aiNode *BuildNodes(const COB::Node &root, const COB::Scene &scin, aiScene *fill);
 
 private:
@@ -122,7 +119,8 @@ private:
     void UnsupportedChunk_Ascii(LineSplitter &splitter, const COB::ChunkInfo &nfo, const char *name);
     void ReadChunkInfo_Ascii(COB::ChunkInfo &out, const LineSplitter &splitter);
     void ReadBasicNodeInfo_Ascii(COB::Node &msh, LineSplitter &splitter, const COB::ChunkInfo &nfo);
-    template <typename T> void ReadFloat3Tuple_Ascii(T& fill, const char** in);
+    template <typename T>
+    void ReadFloat3Tuple_Ascii(T &fill, const char **in);
 
     void ReadPolH_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);
     void ReadBitM_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);
@@ -134,7 +132,6 @@ private:
     void ReadUnit_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);
     void ReadChan_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);
 
-
     // Binary file support
 
     void UnsupportedChunk_Binary(StreamReaderLE &reader, const COB::ChunkInfo &nfo, const char *name);
@@ -149,7 +146,6 @@ private:
     void ReadGrou_Binary(COB::Scene &out, StreamReaderLE &reader, const COB::ChunkInfo &nfo);
     void ReadUnit_Binary(COB::Scene &out, StreamReaderLE &reader, const COB::ChunkInfo &nfo);
 
-
 }; // !class COBImporter
 
 } // end of namespace Assimp

code/AssetLib/COB/COBScene.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,16 +42,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file  COBScene.h
 *  @brief Utilities for the COB importer.
 */
+#pragma once
 #ifndef INCLUDED_AI_COB_SCENE_H
 #define INCLUDED_AI_COB_SCENE_H
 
-#include <memory>
-#include <deque>
-#include <map>
-
 #include <assimp/BaseImporter.h>
 #include <assimp/material.h>
 
+#include <deque>
+#include <map>
+
 namespace Assimp {
 namespace COB {
 

code/AssetLib/CSM/CSMLoader.cpp

@@ -99,7 +99,7 @@ bool CSMImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool
         return true;
 
     if ((checkSig || !extension.length()) && pIOHandler) {
-        const char* tokens[] = {"$Filename"};
+        static const char * const tokens[] = {"$Filename"};
         return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
     }
     return false;

code/AssetLib/CSM/CSMLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -59,35 +58,32 @@ namespace Assimp    {
  *  Link to file format specification:
  *  <max_8_dvd>\samples\Motion\Docs\CSM.rtf
 */
-class CSMImporter : public BaseImporter
+class CSMImporter : public BaseImporter {
-{
 public:
     CSMImporter();
-    ~CSMImporter();
+    ~CSMImporter() override;
 
-
-public:
     // -------------------------------------------------------------------
     bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
-        bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
+    // -------------------------------------------------------------------
+    const aiImporterDesc *GetInfo() const override;
 
     // -------------------------------------------------------------------
-    const aiImporterDesc* GetInfo () const;
+    void SetupProperties(const Importer *pImp) override;
-
-    // -------------------------------------------------------------------
-    void SetupProperties(const Importer* pImp);
 
     // -------------------------------------------------------------------
     void InternReadFile(const std::string &pFile, aiScene *pScene,
-        IOSystem* pIOHandler);
+            IOSystem *pIOHandler) override;
 
 private:
-
     bool noSkeletonMesh;
 
 }; // end of class CSMImporter
+
 } // end of namespace Assimp
+
 #endif // AI_AC3DIMPORTER_H_INC
 

code/AssetLib/Collada/ColladaLoader.cpp

@@ -47,7 +47,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "ColladaParser.h"
 #include <assimp/ColladaMetaData.h>
 #include <assimp/CreateAnimMesh.h>
-#include <assimp/Defines.h>
 #include <assimp/ParsingUtils.h>
 #include <assimp/SkeletonMeshBuilder.h>
 #include <assimp/ZipArchiveIOSystem.h>
@@ -75,7 +74,7 @@ static const aiImporterDesc desc = {
     3,
     1,
     5,
-    "dae zae"
+    "dae xml zae"
 };
 
 static const float kMillisecondsFromSeconds = 1000.f;
@@ -135,14 +134,15 @@ bool ColladaLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool
 
     // XML - too generic, we need to open the file and search for typical keywords
     if (extension == "xml" || !extension.length() || checkSig) {
-        /*  If CanRead() is called in order to check whether we
+        //  If CanRead() is called in order to check whether we
-         *  support a specific file extension in general pIOHandler
+        //  support a specific file extension in general pIOHandler
-         *  might be nullptr and it's our duty to return true here.
+        //  might be nullptr and it's our duty to return true here.
-         */
+        if (nullptr == pIOHandler) {
-        if (!pIOHandler) {
             return true;
         }
-        static const char *tokens[] = { "<collada" };
+        static const char * const tokens[] = {
+            "<collada"
+        };
         return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
 
@@ -317,7 +317,7 @@ void ColladaLoader::ResolveNodeInstances(const ColladaParser &pParser, const Nod
             nd = FindNode(pParser.mRootNode, nodeInst.mNode);
         }
         if (nullptr == nd) {
-            ASSIMP_LOG_ERROR_F("Collada: Unable to resolve reference to instanced node ", nodeInst.mNode);
+            ASSIMP_LOG_ERROR("Collada: Unable to resolve reference to instanced node ", nodeInst.mNode);
         } else {
             //  attach this node to the list of children
             resolved.push_back(nd);
@@ -347,7 +347,7 @@ void ColladaLoader::BuildLightsForNode(const ColladaParser &pParser, const Node
         // find the referred light
         ColladaParser::LightLibrary::const_iterator srcLightIt = pParser.mLightLibrary.find(lid.mLight);
         if (srcLightIt == pParser.mLightLibrary.end()) {
-            ASSIMP_LOG_WARN_F("Collada: Unable to find light for ID \"", lid.mLight, "\". Skipping.");
+            ASSIMP_LOG_WARN("Collada: Unable to find light for ID \"", lid.mLight, "\". Skipping.");
             continue;
         }
         const Collada::Light *srcLight = &srcLightIt->second;
@@ -412,7 +412,7 @@ void ColladaLoader::BuildCamerasForNode(const ColladaParser &pParser, const Node
         // find the referred light
         ColladaParser::CameraLibrary::const_iterator srcCameraIt = pParser.mCameraLibrary.find(cid.mCamera);
         if (srcCameraIt == pParser.mCameraLibrary.end()) {
-            ASSIMP_LOG_WARN_F("Collada: Unable to find camera for ID \"", cid.mCamera, "\". Skipping.");
+            ASSIMP_LOG_WARN("Collada: Unable to find camera for ID \"", cid.mCamera, "\". Skipping.");
             continue;
         }
         const Collada::Camera *srcCamera = &srcCameraIt->second;
@@ -486,7 +486,7 @@ void ColladaLoader::BuildMeshesForNode(const ColladaParser &pParser, const Node
             }
 
             if (nullptr == srcMesh) {
-                ASSIMP_LOG_WARN_F("Collada: Unable to find geometry for ID \"", mid.mMeshOrController, "\". Skipping.");
+                ASSIMP_LOG_WARN("Collada: Unable to find geometry for ID \"", mid.mMeshOrController, "\". Skipping.");
                 continue;
             }
         } else {
@@ -511,7 +511,7 @@ void ColladaLoader::BuildMeshesForNode(const ColladaParser &pParser, const Node
                 table = &meshMatIt->second;
                 meshMaterial = table->mMatName;
             } else {
-                ASSIMP_LOG_WARN_F("Collada: No material specified for subgroup <", submesh.mMaterial, "> in geometry <",
+                ASSIMP_LOG_WARN("Collada: No material specified for subgroup <", submesh.mMaterial, "> in geometry <",
                         mid.mMeshOrController, ">.");
                 if (!mid.mMaterials.empty()) {
                     meshMaterial = mid.mMaterials.begin()->second.mMatName;
@@ -573,7 +573,7 @@ void ColladaLoader::BuildMeshesForNode(const ColladaParser &pParser, const Node
 
     // now place all mesh references we gathered in the target node
     pTarget->mNumMeshes = static_cast<unsigned int>(newMeshRefs.size());
-    if (newMeshRefs.size()) {
+    if (!newMeshRefs.empty()) {
         struct UIntTypeConverter {
             unsigned int operator()(const size_t &v) const {
                 return static_cast<unsigned int>(v);
@@ -619,6 +619,10 @@ aiMesh *ColladaLoader::CreateMesh(const ColladaParser &pParser, const Mesh *pSrc
         dstMesh->mName = pSrcMesh->mId;
     }
 
+    if (pSrcMesh->mPositions.empty()) {
+        return dstMesh.release();
+    }
+
     // count the vertices addressed by its faces
     const size_t numVertices = std::accumulate(pSrcMesh->mFaceSize.begin() + pStartFace,
             pSrcMesh->mFaceSize.begin() + pStartFace + pSubMesh.mNumFaces, size_t(0));
@@ -883,7 +887,7 @@ aiMesh *ColladaLoader::CreateMesh(const ColladaParser &pParser, const Mesh *pSrc
             if (nullptr != bnode) {
                 bone->mName.Set(FindNameForNode(bnode));
             } else {
-                ASSIMP_LOG_WARN_F("ColladaLoader::CreateMesh(): could not find corresponding node for joint \"", bone->mName.data, "\".");
+                ASSIMP_LOG_WARN("ColladaLoader::CreateMesh(): could not find corresponding node for joint \"", bone->mName.data, "\".");
             }
 
             // and insert bone
@@ -1184,7 +1188,7 @@ void ColladaLoader::CreateAnimation(aiScene *pScene, const ColladaParser &pParse
                 else if (subElement == "Z")
                     entry.mSubElement = 2;
                 else
-                    ASSIMP_LOG_WARN_F("Unknown anim subelement <", subElement, ">. Ignoring");
+                    ASSIMP_LOG_WARN("Unknown anim subelement <", subElement, ">. Ignoring");
             } else {
                 // no sub-element following, transformId is remaining string
                 entry.mTransformId = srcChannel.mTarget.substr(slashPos + 1);
@@ -1241,7 +1245,7 @@ void ColladaLoader::CreateAnimation(aiScene *pScene, const ColladaParser &pParse
                     continue;
                 }
                 entry.mTargetId = entry.mTransformId;
-                entry.mTransformId = "";
+                entry.mTransformId = std::string();
             }
 
             entry.mChannel = &(*cit);
@@ -1682,7 +1686,7 @@ void ColladaLoader::BuildMaterials(ColladaParser &pParser, aiScene * /*pScene*/)
 
         // store the material
         mMaterialIndexByName[matIt->first] = newMats.size();
-        newMats.push_back(std::pair<Effect *, aiMaterial *>(&effect, mat));
+        newMats.emplace_back(&effect, mat);
     }
     // ScenePreprocessor generates a default material automatically if none is there.
     // All further code here in this loader works well without a valid material so
@@ -1711,7 +1715,7 @@ aiString ColladaLoader::FindFilenameForEffectTexture(const ColladaParser &pParse
     // find the image referred by this name in the image library of the scene
     ColladaParser::ImageLibrary::const_iterator imIt = pParser.mImageLibrary.find(name);
     if (imIt == pParser.mImageLibrary.end()) {
-        ASSIMP_LOG_WARN_F("Collada: Unable to resolve effect texture entry \"", pName, "\", ended up at ID \"", name, "\".");
+        ASSIMP_LOG_WARN("Collada: Unable to resolve effect texture entry \"", pName, "\", ended up at ID \"", name, "\".");
 
         //set default texture file name
         result.Set(name + ".jpg");

code/AssetLib/Collada/ColladaParser.cpp

@@ -71,7 +71,7 @@ static void ReportWarning(const char *msg, ...) {
     ai_assert(iLen > 0);
 
     va_end(args);
-    ASSIMP_LOG_WARN_F("Validation warning: ", std::string(szBuffer, iLen));
+    ASSIMP_LOG_WARN("Validation warning: ", std::string(szBuffer, iLen));
 }
 
 static bool FindCommonKey(const std::string &collada_key, const MetaKeyPairVector &key_renaming, size_t &found_index) {
@@ -231,11 +231,7 @@ void ColladaParser::UriDecodePath(aiString &ss) {
 
     // Maxon Cinema Collada Export writes "file:///C:\andsoon" with three slashes...
     // I need to filter it without destroying linux paths starting with "/somewhere"
-#if defined(_MSC_VER)
     if (ss.data[0] == '/' && isalpha((unsigned char)ss.data[1]) && ss.data[2] == ':') {
-#else
-    if (ss.data[0] == '/' && isalpha(ss.data[1]) && ss.data[2] == ':') {
-#endif
         --ss.length;
         ::memmove(ss.data, ss.data + 1, ss.length);
         ss.data[ss.length] = 0;
@@ -453,7 +449,7 @@ void ColladaParser::PostProcessRootAnimations() {
 
         temp.mSubAnims.push_back(clip);
 
-        for (std::string animationID : it.second) {
+        for (const std::string &animationID : it.second) {
             AnimationLibrary::iterator animation = mAnimationLibrary.find(animationID);
 
             if (animation != mAnimationLibrary.end()) {
@@ -623,12 +619,9 @@ void ColladaParser::ReadController(XmlNode &node, Collada::Controller &controlle
     controller.mType = Skin;
     controller.mMethod = Normalized;
 
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
-
-    //for (XmlNode &currentNode : node.children()) {
         const std::string &currentName = currentNode.name();
         if (currentName == "morph") {
             controller.mType = Morph;
@@ -921,7 +914,7 @@ void ColladaParser::ReadMaterial(XmlNode &node, Collada::Material &pMaterial) {
         if (currentName == "instance_effect") {
             std::string url;
             readUrlAttribute(currentNode, url);
-            pMaterial.mEffect = url.c_str();
+            pMaterial.mEffect = url;
         }
     }
 }
@@ -929,8 +922,7 @@ void ColladaParser::ReadMaterial(XmlNode &node, Collada::Material &pMaterial) {
 // ------------------------------------------------------------------------------------------------
 // Reads a light entry into the given light
 void ColladaParser::ReadLight(XmlNode &node, Collada::Light &pLight) {
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -991,10 +983,8 @@ void ColladaParser::ReadLight(XmlNode &node, Collada::Light &pLight) {
 // ------------------------------------------------------------------------------------------------
 // Reads a camera entry into the given light
 void ColladaParser::ReadCamera(XmlNode &node, Collada::Camera &camera) {
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
-
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
         if (currentName == "orthographic") {
@@ -1050,11 +1040,10 @@ void ColladaParser::ReadEffect(XmlNode &node, Collada::Effect &pEffect) {
 // ------------------------------------------------------------------------------------------------
 // Reads an COMMON effect profile
 void ColladaParser::ReadEffectProfileCommon(XmlNode &node, Collada::Effect &pEffect) {
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
-        const std::string &currentName = currentNode.name();
+        const std::string currentName = currentNode.name();
         if (currentName == "newparam") {
             // save ID
             std::string sid = currentNode.attribute("sid").as_string();
@@ -1145,10 +1134,9 @@ void ColladaParser::ReadSamplerProperties(XmlNode &node, Sampler &out) {
     if (node.empty()) {
         return;
     }
-    XmlNodeIterator xmlIt(node);
-    xmlIt.collectChildrenPreOrder(node);
-    XmlNode currentNode;
 
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
+    XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
         // MAYA extensions
@@ -1208,10 +1196,9 @@ void ColladaParser::ReadEffectColor(XmlNode &node, aiColor4D &pColor, Sampler &p
     if (node.empty()) {
         return;
     }
-    XmlNodeIterator xmlIt(node);
-    xmlIt.collectChildrenPreOrder(node);
-    XmlNode currentNode;
 
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
+    XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
         if (currentName == "color") {
@@ -1273,8 +1260,7 @@ void ColladaParser::ReadEffectParam(XmlNode &node, Collada::EffectParam &pParam)
         return;
     }
 
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -1360,8 +1346,7 @@ void ColladaParser::ReadMesh(XmlNode &node, Mesh &pMesh) {
         return;
     }
 
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -1386,8 +1371,7 @@ void ColladaParser::ReadSource(XmlNode &node) {
 
     std::string sourceID;
     XmlParser::getStdStrAttribute(node, "id", sourceID);
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -1449,9 +1433,8 @@ void ColladaParser::ReadDataArray(XmlNode &node) {
                     throw DeadlyImportError("Expected more values while reading float_array contents.");
                 }
 
-                ai_real value;
                 // read a number
-                //SkipSpacesAndLineEnd(&content);
+                ai_real value;
                 content = fast_atoreal_move<ai_real>(content, value);
                 data.mValues.push_back(value);
                 // skip whitespace after it
@@ -1490,8 +1473,7 @@ void ColladaParser::ReadAccessor(XmlNode &node, const std::string &pID) {
     acc.mSource = source.c_str() + 1; // ignore the leading '#'
     acc.mSize = 0; // gets incremented with every param
 
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -1500,11 +1482,10 @@ void ColladaParser::ReadAccessor(XmlNode &node, const std::string &pID) {
             std::string name;
             if (XmlParser::hasAttribute(currentNode, "name")) {
                 XmlParser::getStdStrAttribute(currentNode, "name", name);
-                //name = mReader->getAttributeValue(attrName);
 
                 // analyse for common type components and store it's sub-offset in the corresponding field
 
-                /* Cartesian coordinates */
+                // Cartesian coordinates
                 if (name == "X")
                     acc.mSubOffset[0] = acc.mParams.size();
                 else if (name == "Y")
@@ -1608,8 +1589,7 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
     ai_assert(primType != Prim_Invalid);
 
     // also a number of <input> elements, but in addition a <p> primitive collection and probably index counts for all primitives
-    XmlNodeIterator xmlIt(node);
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
-    xmlIt.collectChildrenPreOrder(node);
     XmlNode currentNode;
     while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
@@ -1686,11 +1666,8 @@ void ColladaParser::ReadInputChannel(XmlNode &node, std::vector<InputChannel> &p
 
     // read set if texture coordinates
     if (channel.mType == IT_Texcoord || channel.mType == IT_Color) {
-        int attrSet = -1;
+        unsigned int attrSet = 0;
-        if (XmlParser::hasAttribute(node, "set")) {
+        if (XmlParser::getUIntAttribute(node, "set", attrSet))
-            XmlParser::getIntAttribute(node, "set", attrSet);
-        }
-
             channel.mIndex = attrSet;
     }
 
@@ -2182,10 +2159,10 @@ void ColladaParser::ReadNodeTransformation(XmlNode &node, Node *pNode, Transform
 
     // read as many parameters and store in the transformation
     for (unsigned int a = 0; a < sNumParameters[pType]; a++) {
+        // skip whitespace before the number
+        SkipSpacesAndLineEnd(&content);
         // read a number
         content = fast_atoreal_move<ai_real>(content, tf.f[a]);
-        // skip whitespace after it
-        SkipSpacesAndLineEnd(&content);
     }
 
     // place the transformation at the queue of the node
@@ -2227,8 +2204,8 @@ void ColladaParser::ReadMaterialVertexInputBinding(XmlNode &node, Collada::Seman
 
 void ColladaParser::ReadEmbeddedTextures(ZipArchiveIOSystem &zip_archive) {
     // Attempt to load any undefined Collada::Image in ImageLibrary
-    for (ImageLibrary::iterator it = mImageLibrary.begin(); it != mImageLibrary.end(); ++it) {
+    for (auto & it : mImageLibrary) {
-        Collada::Image &image = (*it).second;
+        Collada::Image &image = it.second;
 
         if (image.mImageData.empty()) {
             std::unique_ptr<IOStream> image_file(zip_archive.Open(image.mFileName.c_str()));
@@ -2400,7 +2377,7 @@ Collada::InputType ColladaParser::GetTypeForSemantic(const std::string &semantic
     else if (semantic == "TANGENT" || semantic == "TEXTANGENT")
         return IT_Tangent;
 
-    ASSIMP_LOG_WARN_F("Unknown vertex input type \"", semantic, "\". Ignoring.");
+    ASSIMP_LOG_WARN("Unknown vertex input type \"", semantic, "\". Ignoring.");
     return IT_Invalid;
 }
 

code/AssetLib/Collada/ColladaParser.h

@@ -43,6 +43,7 @@
  *  @brief Defines the parser helper class for the collada loader
  */
 
+#pragma once
 #ifndef AI_COLLADAPARSER_H_INC
 #define AI_COLLADAPARSER_H_INC
 

code/AssetLib/DXF/DXFHelper.h

@@ -135,7 +135,7 @@ public:
                 for(;splitter->length() && splitter->at(0) != '}'; splitter++, cnt++);
 
                 splitter++;
-                ASSIMP_LOG_VERBOSE_DEBUG((Formatter::format("DXF: skipped over control group ("),cnt," lines)"));
+                ASSIMP_LOG_VERBOSE_DEBUG("DXF: skipped over control group (",cnt," lines)");
             }
         } catch(std::logic_error&) {
             ai_assert(!splitter);

code/AssetLib/DXF/DXFLoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -63,11 +61,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 using namespace Assimp;
 
 // AutoCAD Binary DXF<CR><LF><SUB><NULL>
-const std::string AI_DXF_BINARY_IDENT = std::string("AutoCAD Binary DXF\r\n\x1a\0");
+static constexpr char AI_DXF_BINARY_IDENT[] = "AutoCAD Binary DXF\r\n\x1a";
-const size_t AI_DXF_BINARY_IDENT_LEN = 24u;
+static constexpr size_t AI_DXF_BINARY_IDENT_LEN = sizeof AI_DXF_BINARY_IDENT;
 
 // default vertex color that all uncolored vertices will receive
-const aiColor4D AI_DXF_DEFAULT_COLOR(aiColor4D(0.6f, 0.6f, 0.6f, 0.6f));
+static const aiColor4D AI_DXF_DEFAULT_COLOR(aiColor4D(0.6f, 0.6f, 0.6f, 0.6f));
 
 // color indices for DXF - 16 are supported, the table is
 // taken directly from the DXF spec.
@@ -132,8 +130,8 @@ bool DXFImporter::CanRead( const std::string& filename, IOSystem* pIOHandler, bo
     }
 
     if ( extension.empty() || checkSig ) {
-        const char *pTokens[] = { "SECTION", "HEADER", "ENDSEC", "BLOCKS" };
+        static const char * const pTokens[] = { "SECTION", "HEADER", "ENDSEC", "BLOCKS" };
-        return BaseImporter::SearchFileHeaderForToken(pIOHandler, filename, pTokens, 4, 32 );
+        return SearchFileHeaderForToken(pIOHandler, filename, pTokens, 4, 32 );
     }
 
     return false;
@@ -156,10 +154,10 @@ void DXFImporter::InternReadFile( const std::string& filename, aiScene* pScene,
     }
 
     // Check whether this is a binary DXF file - we can't read binary DXF files :-(
-    char buff[AI_DXF_BINARY_IDENT_LEN+1] = {0};
+    char buff[AI_DXF_BINARY_IDENT_LEN] = {0};
     file->Read(buff,AI_DXF_BINARY_IDENT_LEN,1);
 
-    if (0 == strncmp(AI_DXF_BINARY_IDENT.c_str(),buff,AI_DXF_BINARY_IDENT_LEN)) {
+    if (0 == memcmp(AI_DXF_BINARY_IDENT,buff,AI_DXF_BINARY_IDENT_LEN)) {
         throw DeadlyImportError("DXF: Binary files are not supported at the moment");
     }
 
@@ -202,7 +200,7 @@ void DXFImporter::InternReadFile( const std::string& filename, aiScene* pScene,
 
         // comments
         else if (reader.Is(999)) {
-            ASSIMP_LOG_INFO_F("DXF Comment: ", reader.Value());
+            ASSIMP_LOG_INFO("DXF Comment: ", reader.Value());
         }
 
         // don't read past the official EOF sign
@@ -241,7 +239,7 @@ void DXFImporter::ConvertMeshes(aiScene* pScene, DXF::FileData& output) {
             }
         }
 
-        ASSIMP_LOG_VERBOSE_DEBUG_F("DXF: Unexpanded polycount is ", icount, ", vertex count is ", vcount);
+        ASSIMP_LOG_VERBOSE_DEBUG("DXF: Unexpanded polycount is ", icount, ", vertex count is ", vcount);
     }
 
     if (! output.blocks.size()  ) {
@@ -372,7 +370,7 @@ void DXFImporter::ExpandBlockReferences(DXF::Block& bl,const DXF::BlockMap& bloc
         // first check if the referenced blocks exists ...
         const DXF::BlockMap::const_iterator it = blocks_by_name.find(insert.name);
         if (it == blocks_by_name.end()) {
-            ASSIMP_LOG_ERROR_F("DXF: Failed to resolve block reference: ", insert.name,"; skipping" );
+            ASSIMP_LOG_ERROR("DXF: Failed to resolve block reference: ", insert.name,"; skipping" );
             continue;
         }
 
@@ -473,7 +471,7 @@ void DXFImporter::ParseBlocks(DXF::LineReader& reader, DXF::FileData& output) {
         ++reader;
     }
 
-    ASSIMP_LOG_VERBOSE_DEBUG_F("DXF: got ", output.blocks.size()," entries in BLOCKS" );
+    ASSIMP_LOG_VERBOSE_DEBUG("DXF: got ", output.blocks.size()," entries in BLOCKS" );
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -549,7 +547,7 @@ void DXFImporter::ParseEntities(DXF::LineReader& reader, DXF::FileData& output)
         ++reader;
     }
 
-    ASSIMP_LOG_VERBOSE_DEBUG_F( "DXF: got ", block.lines.size()," polylines and ", block.insertions.size(), 
+    ASSIMP_LOG_VERBOSE_DEBUG( "DXF: got ", block.lines.size()," polylines and ", block.insertions.size(),
         " inserted blocks in ENTITIES" );
 }
 
@@ -654,7 +652,7 @@ void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output)
     //}
 
     if (vguess && line.positions.size() != vguess) {
-        ASSIMP_LOG_WARN_F("DXF: unexpected vertex count in polymesh: ",
+        ASSIMP_LOG_WARN("DXF: unexpected vertex count in polymesh: ",
             line.positions.size(),", expected ", vguess );
     }
 
@@ -670,7 +668,7 @@ void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output)
         // to set the 71 and 72 fields, respectively, to valid values.
         // So just fire a warning.
         if (iguess && line.counts.size() != iguess) {
-            ASSIMP_LOG_WARN_F( "DXF: unexpected face count in polymesh: ", line.counts.size(),", expected ", iguess );
+            ASSIMP_LOG_WARN( "DXF: unexpected face count in polymesh: ", line.counts.size(),", expected ", iguess );
         }
     }
     else if (!line.indices.size() && !line.counts.size()) {

code/AssetLib/DXF/DXFLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,6 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file  DXFLoader.h
  *  @brief Declaration of the .dxf importer class.
  */
+#pragma once
 #ifndef AI_DXFLOADER_H_INCLUDED
 #define AI_DXFLOADER_H_INCLUDED
 
@@ -59,7 +59,7 @@ namespace DXF {
     struct Block;
     struct InsertBlock;
 
-    typedef std::map<std::string, const DXF::Block*> BlockMap;
+    using BlockMap = std::map<std::string, const DXF::Block*>;
 }
 
 // ---------------------------------------------------------------------------
@@ -69,29 +69,26 @@ namespace DXF {
 class DXFImporter : public BaseImporter {
 public:
     DXFImporter();
-    ~DXFImporter();
+    ~DXFImporter() override;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
     * See BaseImporter::CanRead() for details.  */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
 protected:
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details*/
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc* GetInfo () const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
      * See BaseImporter::InternReadFile() for details */
-    void InternReadFile( const std::string& pFile,
+    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
-        aiScene* pScene,
-        IOSystem* pIOHandler);
 
 private:
-
     // -----------------------------------------------------
     void SkipSection(DXF::LineReader& reader);
 

code/AssetLib/FBX/FBXBinaryTokenizer.cpp

@@ -459,7 +459,7 @@ void TokenizeBinary(TokenList& output_tokens, const char* input, size_t length)
 	/*Result ignored*/ ReadByte(input, cursor, input + length);
 	/*Result ignored*/ ReadByte(input, cursor, input + length);
 	const uint32_t version = ReadWord(input, cursor, input + length);
-	ASSIMP_LOG_DEBUG_F("FBX version: ", version);
+	ASSIMP_LOG_DEBUG("FBX version: ", version);
 	const bool is64bits = version >= 7500;
     const char *end = input + length;
     try

code/AssetLib/FBX/FBXConverter.cpp

@@ -811,7 +811,7 @@ bool FBXConverter::GenerateTransformationNodeChain(const Model &model, const std
     // we need to generate a full node chain to accommodate for assimp's
     // lack to express pivots and offsets.
     if ((chainBits & chainMaskComplex) && doc.Settings().preservePivots) {
-        FBXImporter::LogInfo("generating full transformation chain for node: " + name);
+        FBXImporter::LogInfo("generating full transformation chain for node: ", name);
 
         // query the anim_chain_bits dictionary to find out which chain elements
         // have associated node animation channels. These can not be dropped
@@ -917,8 +917,10 @@ void FBXConverter::ConvertModel(const Model &model, aiNode *parent, aiNode *root
         } else if (line) {
             const std::vector<unsigned int> &indices = ConvertLine(*line, root_node);
             std::copy(indices.begin(), indices.end(), std::back_inserter(meshes));
+        } else if (geo) {
+            FBXImporter::LogWarn("ignoring unrecognized geometry: ", geo->Name());
         } else {
-            FBXImporter::LogWarn("ignoring unrecognized geometry: " + geo->Name());
+            FBXImporter::LogWarn("skipping null geometry");
         }
     }
 
@@ -944,7 +946,7 @@ FBXConverter::ConvertMesh(const MeshGeometry &mesh, const Model &model, aiNode *
     const std::vector<aiVector3D> &vertices = mesh.GetVertices();
     const std::vector<unsigned int> &faces = mesh.GetFaceIndexCounts();
     if (vertices.empty() || faces.empty()) {
-        FBXImporter::LogWarn("ignoring empty geometry: " + mesh.Name());
+        FBXImporter::LogWarn("ignoring empty geometry: ", mesh.Name());
         return temp;
     }
 
@@ -971,7 +973,7 @@ std::vector<unsigned int> FBXConverter::ConvertLine(const LineGeometry &line, ai
     const std::vector<aiVector3D> &vertices = line.GetVertices();
     const std::vector<int> &indices = line.GetIndices();
     if (vertices.empty() || indices.empty()) {
-        FBXImporter::LogWarn("ignoring empty line: " + line.Name());
+        FBXImporter::LogWarn("ignoring empty line: ", line.Name());
         return temp;
     }
 
@@ -1126,6 +1128,8 @@ unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, c
             *out_uv++ = aiVector3D(v.x, v.y, 0.0f);
         }
 
+        out_mesh->SetTextureCoordsName(i, aiString(mesh.GetTextureCoordChannelName(i)));
+
         out_mesh->mNumUVComponents[i] = 2;
     }
 
@@ -1542,10 +1546,10 @@ void FBXConverter::ConvertCluster(std::vector<aiBone *> &local_mesh_bones, const
     aiBone *bone = nullptr;
 
     if (bone_map.count(deformer_name)) {
-        ASSIMP_LOG_VERBOSE_DEBUG_F("retrieved bone from lookup ", bone_name.C_Str(), ". Deformer:", deformer_name);
+        ASSIMP_LOG_VERBOSE_DEBUG("retrieved bone from lookup ", bone_name.C_Str(), ". Deformer:", deformer_name);
         bone = bone_map[deformer_name];
     } else {
-        ASSIMP_LOG_VERBOSE_DEBUG_F("created new bone ", bone_name.C_Str(), ". Deformer: ", deformer_name);
+        ASSIMP_LOG_VERBOSE_DEBUG("created new bone ", bone_name.C_Str(), ". Deformer: ", deformer_name);
         bone = new aiBone();
         bone->mName = bone_name;
 
@@ -1591,7 +1595,7 @@ void FBXConverter::ConvertCluster(std::vector<aiBone *> &local_mesh_bones, const
         bone_map.insert(std::pair<const std::string, aiBone *>(deformer_name, bone));
     }
 
-    ASSIMP_LOG_DEBUG_F("bone research: Indicies size: ", out_indices.size());
+    ASSIMP_LOG_DEBUG("bone research: Indices size: ", out_indices.size());
 
     // lookup must be populated in case something goes wrong
     // this also allocates bones to mesh instance outside
@@ -1764,6 +1768,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const TextureMap
         // XXX handle all kinds of UV transformations
         uvTrafo.mScaling = tex->UVScaling();
         uvTrafo.mTranslation = tex->UVTranslation();
+        uvTrafo.mRotation = tex->UVRotation();
         out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, 0);
 
         const PropertyTable &props = tex->Props();
@@ -1815,14 +1820,14 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const TextureMap
                             }
                         }
                         if (index == -1) {
-                            FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                            FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                             continue;
                         }
 
                         if (uvIndex == -1) {
                             uvIndex = index;
                         } else {
-                            FBXImporter::LogWarn("the UV channel named " + uvSet +
+                            FBXImporter::LogWarn("the UV channel named ", uvSet,
                                                  " appears at different positions in meshes, results will be wrong");
                         }
                     }
@@ -1839,7 +1844,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const TextureMap
                         }
                     }
                     if (index == -1) {
-                        FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                        FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                     }
 
                     if (uvIndex == -1) {
@@ -1848,7 +1853,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const TextureMap
                 }
 
                 if (uvIndex == -1) {
-                    FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                    FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel");
                     uvIndex = 0;
                 }
             }
@@ -1883,6 +1888,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const LayeredTex
         // XXX handle all kinds of UV transformations
         uvTrafo.mScaling = tex->UVScaling();
         uvTrafo.mTranslation = tex->UVTranslation();
+        uvTrafo.mRotation = tex->UVRotation();
         out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, texIndex);
 
         const PropertyTable &props = tex->Props();
@@ -1934,14 +1940,14 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const LayeredTex
                             }
                         }
                         if (index == -1) {
-                            FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                            FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                             continue;
                         }
 
                         if (uvIndex == -1) {
                             uvIndex = index;
                         } else {
-                            FBXImporter::LogWarn("the UV channel named " + uvSet +
+                            FBXImporter::LogWarn("the UV channel named ", uvSet,
                                                  " appears at different positions in meshes, results will be wrong");
                         }
                     }
@@ -1958,7 +1964,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const LayeredTex
                         }
                     }
                     if (index == -1) {
-                        FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                        FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                     }
 
                     if (uvIndex == -1) {
@@ -1967,7 +1973,7 @@ void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const LayeredTex
                 }
 
                 if (uvIndex == -1) {
-                    FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                    FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel");
                     uvIndex = 0;
                 }
             }
@@ -2126,6 +2132,11 @@ void FBXConverter::SetShadingPropertiesCommon(aiMaterial *out_mat, const Propert
     const aiColor3D &Emissive = GetColorPropertyFromMaterial(props, "Emissive", ok);
     if (ok) {
         out_mat->AddProperty(&Emissive, 1, AI_MATKEY_COLOR_EMISSIVE);
+    } else {
+        const aiColor3D &emissiveColor = GetColorProperty(props, "Maya|emissive", ok);
+        if (ok) {
+            out_mat->AddProperty(&emissiveColor, 1, AI_MATKEY_COLOR_EMISSIVE);
+        }
      }
 
     const aiColor3D &Ambient = GetColorPropertyFromMaterial(props, "Ambient", ok);
@@ -2207,6 +2218,52 @@ void FBXConverter::SetShadingPropertiesCommon(aiMaterial *out_mat, const Propert
     if (ok) {
         out_mat->AddProperty(&DispFactor, 1, "$mat.displacementscaling", 0, 0);
     }
+
+    // PBR material information
+    const aiColor3D &baseColor = GetColorProperty(props, "Maya|base_color", ok);
+    if (ok) {
+        out_mat->AddProperty(&baseColor, 1, AI_MATKEY_BASE_COLOR);
+    }
+
+    const float useColorMap = PropertyGet<float>(props, "Maya|use_color_map", ok);
+    if (ok) {
+        out_mat->AddProperty(&useColorMap, 1, AI_MATKEY_USE_COLOR_MAP);
+    }
+
+    const float useMetallicMap = PropertyGet<float>(props, "Maya|use_metallic_map", ok);
+    if (ok) {
+        out_mat->AddProperty(&useMetallicMap, 1, AI_MATKEY_USE_METALLIC_MAP);
+    }
+
+    const float metallicFactor = PropertyGet<float>(props, "Maya|metallic", ok);
+    if (ok) {
+        out_mat->AddProperty(&metallicFactor, 1, AI_MATKEY_METALLIC_FACTOR);
+    }
+
+    const float useRoughnessMap = PropertyGet<float>(props, "Maya|use_roughness_map", ok);
+    if (ok) {
+        out_mat->AddProperty(&useRoughnessMap, 1, AI_MATKEY_USE_ROUGHNESS_MAP);
+    }
+
+    const float roughnessFactor = PropertyGet<float>(props, "Maya|roughness", ok);
+    if (ok) {
+        out_mat->AddProperty(&roughnessFactor, 1, AI_MATKEY_ROUGHNESS_FACTOR);
+    }
+
+    const float useEmissiveMap = PropertyGet<float>(props, "Maya|use_emissive_map", ok);
+    if (ok) {
+        out_mat->AddProperty(&useEmissiveMap, 1, AI_MATKEY_USE_EMISSIVE_MAP);
+    }
+
+    const float emissiveIntensity = PropertyGet<float>(props, "Maya|emissive_intensity", ok);
+    if (ok) {
+        out_mat->AddProperty(&emissiveIntensity, 1, AI_MATKEY_EMISSIVE_INTENSITY);
+    }
+
+    const float useAOMap = PropertyGet<float>(props, "Maya|use_ao_map", ok);
+    if (ok) {
+        out_mat->AddProperty(&useAOMap, 1, AI_MATKEY_USE_AO_MAP);
+    }
 }
 
 void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTable &props, const TextureMap &_textures, const MeshGeometry *const mesh) {
@@ -2271,6 +2328,7 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTa
             // XXX handle all kinds of UV transformations
             uvTrafo.mScaling = tex->UVScaling();
             uvTrafo.mTranslation = tex->UVTranslation();
+            uvTrafo.mRotation = tex->UVRotation();
             out_mat->AddProperty(&uvTrafo, 1, (name + "|uvtrafo").c_str(), aiTextureType_UNKNOWN, 0);
 
             int uvIndex = 0;
@@ -2319,14 +2377,14 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTa
                                 }
                             }
                             if (index == -1) {
-                                FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                                FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                                 continue;
                             }
 
                             if (uvIndex == -1) {
                                 uvIndex = index;
                             } else {
-                                FBXImporter::LogWarn("the UV channel named " + uvSet + " appears at different positions in meshes, results will be wrong");
+                                FBXImporter::LogWarn("the UV channel named ", uvSet, " appears at different positions in meshes, results will be wrong");
                             }
                         }
                     } else {
@@ -2342,7 +2400,7 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTa
                             }
                         }
                         if (index == -1) {
-                            FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                            FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material");
                         }
 
                         if (uvIndex == -1) {
@@ -2351,7 +2409,7 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTa
                     }
 
                     if (uvIndex == -1) {
-                        FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                        FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel");
                         uvIndex = 0;
                     }
                 }
@@ -2546,7 +2604,7 @@ void FBXConverter::ConvertAnimationStack(const AnimationStack &st) {
             anim->mMorphMeshChannels = new aiMeshMorphAnim *[numMorphMeshChannels];
             anim->mNumMorphMeshChannels = numMorphMeshChannels;
             unsigned int i = 0;
-            for (auto morphAnimIt : morphAnimDatas) {
+            for (const auto &morphAnimIt : morphAnimDatas) {
                 morphAnimData *animData = morphAnimIt.second;
                 unsigned int numKeys = static_cast<unsigned int>(animData->size());
                 aiMeshMorphAnim *meshMorphAnim = new aiMeshMorphAnim();
@@ -2574,7 +2632,7 @@ void FBXConverter::ConvertAnimationStack(const AnimationStack &st) {
         // empty animations would fail validation, so drop them
         delete anim;
         animations.pop_back();
-        FBXImporter::LogInfo("ignoring empty AnimationStack (using IK?): " + name);
+        FBXImporter::LogInfo("ignoring empty AnimationStack (using IK?): ", name);
         return;
     }
 
@@ -2707,13 +2765,13 @@ void FBXConverter::GenerateNodeAnimations(std::vector<aiNodeAnim *> &node_anims,
         ai_assert(node);
 
         if (node->TargetProperty().empty()) {
-            FBXImporter::LogWarn("target property for animation curve not set: " + node->Name());
+            FBXImporter::LogWarn("target property for animation curve not set: ", node->Name());
             continue;
         }
 
         curve_node = node;
         if (node->Curves().empty()) {
-            FBXImporter::LogWarn("no animation curves assigned to AnimationCurveNode: " + node->Name());
+            FBXImporter::LogWarn("no animation curves assigned to AnimationCurveNode: ", node->Name());
             continue;
         }
 
@@ -2748,7 +2806,7 @@ void FBXConverter::GenerateNodeAnimations(std::vector<aiNodeAnim *> &node_anims,
             if (doc.Settings().optimizeEmptyAnimationCurves &&
                     IsRedundantAnimationData(target, comp, (chain[i]->second))) {
 
-                FBXImporter::LogVerboseDebug("dropping redundant animation channel for node " + target.Name());
+                FBXImporter::LogVerboseDebug("dropping redundant animation channel for node ", target.Name());
                 continue;
             }
 

code/AssetLib/FBX/FBXDocument.cpp

@@ -57,9 +57,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <assimp/DefaultLogger.hpp>
 
-#include <memory>
 #include <functional>
 #include <map>
+#include <memory>
+#include <utility>
 
 namespace Assimp {
 namespace FBX {
@@ -248,10 +249,8 @@ Object::~Object()
 }
 
 // ------------------------------------------------------------------------------------------------
-FileGlobalSettings::FileGlobalSettings(const Document& doc, std::shared_ptr<const PropertyTable> props)
+FileGlobalSettings::FileGlobalSettings(const Document &doc, std::shared_ptr<const PropertyTable> props) :
-: props(props)
+        props(std::move(props)), doc(doc) {
-, doc(doc)
-{
     // empty
 }
 
@@ -312,7 +311,7 @@ void Document::ReadHeader() {
 
     const Scope& shead = *ehead->Compound();
     fbxVersion = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(shead,"FBXVersion",ehead),0));
-	ASSIMP_LOG_DEBUG_F("FBX Version: ", fbxVersion);
+	ASSIMP_LOG_DEBUG("FBX Version: ", fbxVersion);
 
     // While we may have some success with newer files, we don't support
     // the older 6.n fbx format

code/AssetLib/FBX/FBXDocument.h

@@ -500,6 +500,10 @@ public:
         return uvScaling;
     }
 
+    const ai_real &UVRotation() const {
+        return uvRotation;
+    }
+
     const PropertyTable& Props() const {
         ai_assert(props.get());
         return *props.get();
@@ -517,6 +521,7 @@ public:
 private:
     aiVector2D uvTrans;
     aiVector2D uvScaling;
+    ai_real    uvRotation;
 
     std::string type;
     std::string relativeFileName;
@@ -688,7 +693,7 @@ private:
 typedef std::vector<int64_t> KeyTimeList;
 typedef std::vector<float> KeyValueList;
 
-/** Represents a FBX animation curve (i.e. a 1-dimensional set of keyframes and values therefor) */
+/** Represents a FBX animation curve (i.e. a 1-dimensional set of keyframes and values therefore) */
 class AnimationCurve : public Object {
 public:
     AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& doc);

code/AssetLib/FBX/FBXDocumentUtil.cpp

@@ -79,7 +79,7 @@ void DOMError(const std::string& message, const Element* element /*= nullptr*/)
 void DOMWarning(const std::string& message, const Token& token)
 {
     if(DefaultLogger::get()) {
-        ASSIMP_LOG_WARN_F("FBX-DOM", Util::GetTokenText(&token), message);
+        ASSIMP_LOG_WARN("FBX-DOM", Util::GetTokenText(&token), message);
     }
 }
 
@@ -91,7 +91,7 @@ void DOMWarning(const std::string& message, const Element* element /*= nullptr*/
         return;
     }
     if(DefaultLogger::get()) {
-        ASSIMP_LOG_WARN("FBX-DOM: " + message);
+        ASSIMP_LOG_WARN("FBX-DOM: ", message);
     }
 }
 

code/AssetLib/FBX/FBXExportNode.cpp

@@ -144,9 +144,8 @@ void FBX::Node::AddP70time(
 // public member functions for writing nodes to stream
 
 void FBX::Node::Dump(
-    std::shared_ptr<Assimp::IOStream> outfile,
+        const std::shared_ptr<Assimp::IOStream> &outfile,
-    bool binary, int indent
+        bool binary, int indent) {
-) {
     if (binary) {
         Assimp::StreamWriterLE outstream(outfile);
         DumpBinary(outstream);

code/AssetLib/FBX/FBXExportNode.h

@@ -157,9 +157,8 @@ public: // member functions for writing data to a file or stream
 
     // write the full node to the given file or stream
     void Dump(
-        std::shared_ptr<Assimp::IOStream> outfile,
+            const std::shared_ptr<Assimp::IOStream> &outfile,
-        bool binary, int indent
+            bool binary, int indent);
-    );
     void Dump(Assimp::StreamWriterLE &s, bool binary, int indent);
 
     // these other functions are for writing data piece by piece.

code/AssetLib/FBX/FBXExporter.cpp

@@ -541,10 +541,17 @@ void FBXExporter::WriteReferences ()
 // (before any actual data is written)
 // ---------------------------------------------------------------
 
-size_t count_nodes(const aiNode* n) {
+size_t count_nodes(const aiNode* n, const aiNode* root) {
-    size_t count = 1;
+    size_t count;
+    if (n == root) {
+        count = n->mNumMeshes; // (not counting root node)
+    } else if (n->mNumMeshes > 1) {
+        count = n->mNumMeshes + 1;
+    } else {
+        count = 1;
+    }
     for (size_t i = 0; i < n->mNumChildren; ++i) {
-        count += count_nodes(n->mChildren[i]);
+        count += count_nodes(n->mChildren[i], root);
     }
     return count;
 }
@@ -714,7 +721,7 @@ void FBXExporter::WriteDefinitions ()
 
     // Model / FbxNode
     // <~~ node hierarchy
-    count = int32_t(count_nodes(mScene->mRootNode)) - 1; // (not counting root node)
+    count = int32_t(count_nodes(mScene->mRootNode, mScene->mRootNode));
     if (count) {
         n = FBX::Node("ObjectType", "Model");
         n.AddChild("Count", count);
@@ -1681,6 +1688,10 @@ void FBXExporter::WriteObjects ()
             // link the image data to the texture
             connections.emplace_back("C", "OO", image_uid, texture_uid);
 
+            aiUVTransform trafo;
+            unsigned int max = sizeof(aiUVTransform);
+            aiGetMaterialFloatArray(mat, AI_MATKEY_UVTRANSFORM(aiTextureType_DIFFUSE, 0), (ai_real *)&trafo, &max);
+
             // now write the actual texture node
             FBX::Node tnode("Texture");
             // TODO: some way to determine texture name?
@@ -1691,11 +1702,14 @@ void FBXExporter::WriteObjects ()
             tnode.AddChild("Version", int32_t(202));
             tnode.AddChild("TextureName", texture_name);
             FBX::Node p("Properties70");
+            p.AddP70vectorA("Translation", trafo.mTranslation[0], trafo.mTranslation[1], 0.0);
+            p.AddP70vectorA("Rotation", 0, 0, trafo.mRotation);
+            p.AddP70vectorA("Scaling", trafo.mScaling[0], trafo.mScaling[1], 0.0);
             p.AddP70enum("CurrentTextureBlendMode", 0); // TODO: verify
             //p.AddP70string("UVSet", ""); // TODO: how should this work?
             p.AddP70bool("UseMaterial", 1);
             tnode.AddChild(p);
-            // can't easily detrmine which texture path will be correct,
+            // can't easily determine which texture path will be correct,
             // so just store what we have in every field.
             // these being incorrect is a common problem with FBX anyway.
             tnode.AddChild("FileName", texture_path);
@@ -1789,13 +1803,13 @@ void FBXExporter::WriteObjects ()
             blendchannel_uid, blendshape_name + FBX::SEPARATOR + "SubDeformer", "BlendShapeChannel"
         );
         sdnode.AddChild("Version", int32_t(100));
-        sdnode.AddChild("DeformPercent", int32_t(100));
+        sdnode.AddChild("DeformPercent", float(0.0));
         FBX::Node p("Properties70");
-        p.AddP70numberA("DeformPercent", 100.);
+        p.AddP70numberA("DeformPercent", 0.0);
         sdnode.AddChild(p);
         // TODO: Normally just one weight per channel, adding stub for later development
         std::vector<float>fFullWeights;
-        fFullWeights.push_back(0.);
+        fFullWeights.push_back(100.);
         sdnode.AddChild("FullWeights", fFullWeights);
         sdnode.Dump(outstream, binary, indent);
 
@@ -1901,7 +1915,7 @@ void FBXExporter::WriteObjects ()
             // mark all parent nodes as skeleton as well,
             // up until we find the root node,
             // or else the node containing the mesh,
-            // or else the parent of a node containig the mesh.
+            // or else the parent of a node containing the mesh.
             for (
                 const aiNode* parent = n->mParent;
                 parent && parent != mScene->mRootNode;
@@ -2196,7 +2210,65 @@ void FBXExporter::WriteObjects ()
         bpnode.Dump(outstream, binary, indent);
     }*/
 
-    // TODO: cameras, lights
+    // lights
+    indent = 1;
+    lights_uids.clear();
+    for (size_t li = 0; li < mScene->mNumLights; ++li) {
+        aiLight* l = mScene->mLights[li];
+
+        int64_t uid = generate_uid();
+        const std::string lightNodeAttributeName = l->mName.C_Str() + FBX::SEPARATOR + "NodeAttribute";
+
+        FBX::Node lna("NodeAttribute");
+        lna.AddProperties(uid, lightNodeAttributeName, "Light");
+        FBX::Node lnap("Properties70");
+
+        // Light color.
+        lnap.AddP70colorA("Color", l->mColorDiffuse.r, l->mColorDiffuse.g, l->mColorDiffuse.b);
+
+        // TODO Assimp light description is quite concise and do not handle light intensity.
+        // Default value to 1000W.
+        lnap.AddP70numberA("Intensity", 1000);
+
+        // FBXLight::EType conversion
+        switch (l->mType) {
+        case aiLightSource_POINT:
+            lnap.AddP70enum("LightType", 0);
+            break;
+        case aiLightSource_DIRECTIONAL:
+            lnap.AddP70enum("LightType", 1);
+            break;
+        case aiLightSource_SPOT:
+            lnap.AddP70enum("LightType", 2);
+            lnap.AddP70numberA("InnerAngle", AI_RAD_TO_DEG(l->mAngleInnerCone));
+            lnap.AddP70numberA("OuterAngle", AI_RAD_TO_DEG(l->mAngleOuterCone));
+            break;
+        // TODO Assimp do not handle 'area' nor 'volume' lights, but FBX does.
+        /*case aiLightSource_AREA:
+            lnap.AddP70enum("LightType", 3);
+            lnap.AddP70enum("AreaLightShape", 0); // 0=Rectangle, 1=Sphere
+            break;
+        case aiLightSource_VOLUME:
+            lnap.AddP70enum("LightType", 4);
+            break;*/
+        default:
+            break;
+        }
+
+        // Did not understood how to configure the decay so disabling attenuation.
+        lnap.AddP70enum("DecayType", 0);
+
+        // Dump to FBX stream
+        lna.AddChild(lnap);
+        lna.AddChild("TypeFlags", FBX::FBXExportProperty("Light"));
+        lna.AddChild("GeometryVersion", FBX::FBXExportProperty(int32_t(124)));
+        lna.Dump(outstream, binary, indent);
+
+        // Store name and uid (will be used later when parsing scene nodes)
+        lights_uids[l->mName.C_Str()] = uid;
+    }
+
+    // TODO: cameras
 
     // write nodes (i.e. model hierarchy)
     // start at root node
@@ -2599,12 +2671,21 @@ void FBXExporter::WriteModelNodes(
         na.Dump(outstream, binary, 1);
         // and connect them
         connections.emplace_back("C", "OO", node_attribute_uid, node_uid);
+    } else {
+        const auto& lightIt = lights_uids.find(node->mName.C_Str());
+        if(lightIt != lights_uids.end()) {
+            // Node has a light connected to it.
+            WriteModelNode(
+                outstream, binary, node, node_uid, "Light", transform_chain
+            );
+            connections.emplace_back("C", "OO", lightIt->second, node_uid);
         } else {
             // generate a null node so we can add children to it
             WriteModelNode(
                 outstream, binary, node, node_uid, "Null", transform_chain
             );
         }
+    }
 
     // if more than one child mesh, make nodes for each mesh
     if (node->mNumMeshes > 1 || node == mScene->mRootNode) {
@@ -2625,17 +2706,14 @@ void FBXExporter::WriteModelNodes(
                 ],
                 new_node_uid
             );
-            // write model node
+
-            FBX::Node m("Model");
+            aiNode new_node;
             // take name from mesh name, if it exists
-            std::string name = mScene->mMeshes[node->mMeshes[i]]->mName.C_Str();
+            new_node.mName = mScene->mMeshes[node->mMeshes[i]]->mName;
-            name += FBX::SEPARATOR + "Model";
+            // write model node
-            m.AddProperties(new_node_uid, name, "Mesh");
+            WriteModelNode(
-            m.AddChild("Version", int32_t(232));
+                outstream, binary, &new_node, new_node_uid, "Mesh", std::vector<std::pair<std::string,aiVector3D>>()
-            FBX::Node p("Properties70");
+            );
-            p.AddP70enum("InheritType", 1);
-            m.AddChild(p);
-            m.Dump(outstream, binary, 1);
         }
     }
 
@@ -2647,16 +2725,14 @@ void FBXExporter::WriteModelNodes(
     }
 }
 
-
 void FBXExporter::WriteAnimationCurveNode(
         StreamWriterLE &outstream,
         int64_t uid,
         const std::string &name, // "T", "R", or "S"
         aiVector3D default_value,
-    std::string property_name, // "Lcl Translation" etc
+        const std::string &property_name, // "Lcl Translation" etc
         int64_t layer_uid,
-    int64_t node_uid
+        int64_t node_uid) {
-) {
     FBX::Node n("AnimationCurveNode");
     n.AddProperties(uid, name + FBX::SEPARATOR + "AnimCurveNode", "");
     FBX::Node p("Properties70");
@@ -2671,7 +2747,6 @@ void FBXExporter::WriteAnimationCurveNode(
     this->connections.emplace_back("C", "OP", uid, node_uid, property_name);
 }
 
-
 void FBXExporter::WriteAnimationCurve(
     StreamWriterLE& outstream,
     double default_value,

code/AssetLib/FBX/FBXExporter.h

@@ -63,10 +63,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 struct aiScene;
 struct aiNode;
-//struct aiMaterial;
+struct aiLight;
 
-namespace Assimp
+namespace Assimp {
-{
     class IOSystem;
     class IOStream;
     class ExportProperties;
@@ -95,6 +94,7 @@ namespace Assimp
         std::vector<int64_t> mesh_uids;
         std::vector<int64_t> material_uids;
         std::map<const aiNode*,int64_t> node_uids;
+        std::map<std::string,int64_t> lights_uids;
 
         // this crude unique-ID system is actually fine
         int64_t last_uid = 999999;
@@ -158,10 +158,9 @@ namespace Assimp
                 int64_t uid,
                 const std::string &name, // "T", "R", or "S"
                 aiVector3D default_value,
-            std::string property_name, // "Lcl Translation" etc
+                const std::string &property_name, // "Lcl Translation" etc
                 int64_t animation_layer_uid,
-            int64_t node_uid
+                int64_t node_uid);
-        );
         void WriteAnimationCurve(
             StreamWriterLE& outstream,
             double default_value,

code/AssetLib/FBX/FBXImporter.cpp

@@ -108,7 +108,7 @@ bool FBXImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool c
 
 	else if ((!extension.length() || checkSig) && pIOHandler) {
 		// at least ASCII-FBX files usually have a 'FBX' somewhere in their head
-		const char *tokens[] = { "fbx" };
+		static const char * const tokens[] = { "fbx" };
 		return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
 	}
 	return false;

code/AssetLib/FBX/FBXImporter.h

@@ -70,28 +70,29 @@ typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>
 class FBXImporter : public BaseImporter, public LogFunctions<FBXImporter> {
 public:
     FBXImporter();
-    virtual ~FBXImporter();
+    ~FBXImporter() override;
 
     // --------------------
     bool CanRead(const std::string &pFile,
             IOSystem *pIOHandler,
-            bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
     // --------------------
-    const aiImporterDesc *GetInfo() const;
+    const aiImporterDesc *GetInfo() const override;
 
     // --------------------
-    void SetupProperties(const Importer *pImp);
+    void SetupProperties(const Importer *pImp) override;
 
     // --------------------
     void InternReadFile(const std::string &pFile,
             aiScene *pScene,
-            IOSystem *pIOHandler);
+            IOSystem *pIOHandler) override;
 
 private:
     FBX::ImportSettings settings;
 }; // !class FBXImporter
 
 } // end of namespace Assimp
+
 #endif // !INCLUDED_AI_FBX_IMPORTER_H

code/AssetLib/FBX/FBXMaterial.cpp

@@ -82,7 +82,7 @@ Material::Material(uint64_t id, const Element& element, const Document& doc, con
 
     // lower-case shading because Blender (for example) writes "Phong"
     for (size_t i = 0; i < shading.length(); ++i) {
-        shading[i] = static_cast<char>(tolower(shading[i]));
+        shading[i] = static_cast<char>(tolower(static_cast<unsigned char>(shading[i])));
     }
     std::string templateName;
     if(shading == "phong") {
@@ -210,6 +210,11 @@ Texture::Texture(uint64_t id, const Element& element, const Document& doc, const
         uvTrans.y = trans.y;
     }
 
+    const aiVector3D &rotation = PropertyGet<aiVector3D>(*props, "Rotation", ok);
+    if (ok) {
+        uvRotation = rotation.z;
+    }
+
     // resolve video links
     if(doc.Settings().readTextures) {
         const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
@@ -352,7 +357,7 @@ Video::Video(uint64_t id, const Element& element, const Document& doc, const std
             }
         } catch (const runtime_error& runtimeError) {
             //we don't need the content data for contents that has already been loaded
-            ASSIMP_LOG_VERBOSE_DEBUG_F("Caught exception in FBXMaterial (likely because content was already loaded): ",
+            ASSIMP_LOG_VERBOSE_DEBUG("Caught exception in FBXMaterial (likely because content was already loaded): ",
                     runtimeError.what());
         }
     }

code/AssetLib/FBX/FBXMeshGeometry.cpp

@@ -307,8 +307,8 @@ void MeshGeometry::ReadLayerElement(const Scope& layerElement)
         }
     }
 
-    FBXImporter::LogError(Formatter::format("failed to resolve vertex layer element: ")
+    FBXImporter::LogError("failed to resolve vertex layer element: ",
-        << type << ", index: " << typedIndex);
+        type, ", index: ", typedIndex);
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -324,13 +324,13 @@ void MeshGeometry::ReadVertexData(const std::string& type, int index, const Scop
 
     if (type == "LayerElementUV") {
         if(index >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
-            FBXImporter::LogError(Formatter::format("ignoring UV layer, maximum number of UV channels exceeded: ")
+            FBXImporter::LogError("ignoring UV layer, maximum number of UV channels exceeded: ",
-                << index << " (limit is " << AI_MAX_NUMBER_OF_TEXTURECOORDS << ")" );
+                index, " (limit is ", AI_MAX_NUMBER_OF_TEXTURECOORDS, ")" );
             return;
         }
 
         const Element* Name = source["Name"];
-        m_uvNames[index] = "";
+        m_uvNames[index] = std::string();
         if(Name) {
             m_uvNames[index] = ParseTokenAsString(GetRequiredToken(*Name,0));
         }
@@ -402,8 +402,8 @@ void MeshGeometry::ReadVertexData(const std::string& type, int index, const Scop
     }
     else if (type == "LayerElementColor") {
         if(index >= AI_MAX_NUMBER_OF_COLOR_SETS) {
-            FBXImporter::LogError(Formatter::format("ignoring vertex color layer, maximum number of color sets exceeded: ")
+            FBXImporter::LogError("ignoring vertex color layer, maximum number of color sets exceeded: ",
-                << index << " (limit is " << AI_MAX_NUMBER_OF_COLOR_SETS << ")" );
+                index, " (limit is ", AI_MAX_NUMBER_OF_COLOR_SETS, ")" );
             return;
         }
 
@@ -449,8 +449,8 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
         ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
 
         if (tempData.size() != mapping_offsets.size()) {
-            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByVertice mapping: ")
+            FBXImporter::LogError("length of input data unexpected for ByVertice mapping: ",
-                                  << tempData.size() << ", expected " << mapping_offsets.size());
+                                  tempData.size(), ", expected ", mapping_offsets.size());
             return;
         }
 
@@ -470,8 +470,8 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
         ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
 
         if (uvIndices.size() != vertex_count) {
-            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByVertice mapping: ")
+            FBXImporter::LogError("length of input data unexpected for ByVertice mapping: ",
-                                  << uvIndices.size() << ", expected " << vertex_count);
+                                  uvIndices.size(), ", expected ", vertex_count);
             return;
         }
 
@@ -493,8 +493,8 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
 
 		if (tempData.size() != vertex_count) {
-            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByPolygon mapping: ")
+            FBXImporter::LogError("length of input data unexpected for ByPolygon mapping: ",
-				<< tempData.size() << ", expected " << vertex_count
+				tempData.size(), ", expected ", vertex_count
             );
             return;
         }
@@ -509,14 +509,14 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
         ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
 
         if (uvIndices.size() > vertex_count) {
-            FBXImporter::LogWarn(Formatter::format("trimming length of input array for ByPolygonVertex mapping: ")
+            FBXImporter::LogWarn("trimming length of input array for ByPolygonVertex mapping: ",
-                                          << uvIndices.size() << ", expected " << vertex_count);
+                                          uvIndices.size(), ", expected ", vertex_count);
             uvIndices.resize(vertex_count);
         }
 
         if (uvIndices.size() != vertex_count) {
-            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByPolygonVertex mapping: ")
+            FBXImporter::LogError("length of input data unexpected for ByPolygonVertex mapping: ",
-                                  << uvIndices.size() << ", expected " << vertex_count);
+                                  uvIndices.size(), ", expected ", vertex_count);
             return;
         }
 
@@ -537,8 +537,8 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
         }
     }
     else {
-        FBXImporter::LogError(Formatter::format("ignoring vertex data channel, access type not implemented: ")
+        FBXImporter::LogError("ignoring vertex data channel, access type not implemented: ",
-            << MappingInformationType << "," << ReferenceInformationType);
+            MappingInformationType, ",", ReferenceInformationType);
     }
 }
 
@@ -604,15 +604,15 @@ void MeshGeometry::ReadVertexDataTangents(std::vector<aiVector3D>& tangents_out,
 }
 
 // ------------------------------------------------------------------------------------------------
-static const std::string BinormalIndexToken = "BinormalIndex";
+static const char * BinormalIndexToken = "BinormalIndex";
-static const std::string BinormalsIndexToken = "BinormalsIndex";
+static const char * BinormalsIndexToken = "BinormalsIndex";
 
 void MeshGeometry::ReadVertexDataBinormals(std::vector<aiVector3D>& binormals_out, const Scope& source,
     const std::string& MappingInformationType,
     const std::string& ReferenceInformationType)
 {
     const char * str = source.Elements().count( "Binormals" ) > 0 ? "Binormals" : "Binormal";
-    const char * strIdx = source.Elements().count( "Binormals" ) > 0 ? BinormalsIndexToken.c_str() : BinormalIndexToken.c_str();
+    const char * strIdx = source.Elements().count( "Binormals" ) > 0 ? BinormalsIndexToken : BinormalIndexToken;
     ResolveVertexDataArray(binormals_out,source,MappingInformationType,ReferenceInformationType,
         str,
         strIdx,
@@ -642,10 +642,10 @@ void MeshGeometry::ReadVertexDataMaterials(std::vector<int>& materials_out, cons
     if (MappingInformationType == "AllSame") {
         // easy - same material for all faces
         if (materials_out.empty()) {
-            FBXImporter::LogError(Formatter::format("expected material index, ignoring"));
+            FBXImporter::LogError("expected material index, ignoring");
             return;
         } else if (materials_out.size() > 1) {
-            FBXImporter::LogWarn(Formatter::format("expected only a single material index, ignoring all except the first one"));
+            FBXImporter::LogWarn("expected only a single material index, ignoring all except the first one");
             materials_out.clear();
         }
 
@@ -655,14 +655,14 @@ void MeshGeometry::ReadVertexDataMaterials(std::vector<int>& materials_out, cons
         materials_out.resize(face_count);
 
         if(materials_out.size() != face_count) {
-            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByPolygon mapping: ")
+            FBXImporter::LogError("length of input data unexpected for ByPolygon mapping: ",
-                << materials_out.size() << ", expected " << face_count
+                materials_out.size(), ", expected ", face_count
             );
             return;
         }
     } else {
-        FBXImporter::LogError(Formatter::format("ignoring material assignments, access type not implemented: ")
+        FBXImporter::LogError("ignoring material assignments, access type not implemented: ",
-            << MappingInformationType << "," << ReferenceInformationType);
+            MappingInformationType, ",", ReferenceInformationType);
     }
 }
 // ------------------------------------------------------------------------------------------------

code/AssetLib/FBX/FBXParser.cpp

@@ -192,6 +192,10 @@ Scope::Scope(Parser& parser,bool topLevel)
         }
 
         const std::string& str = n->StringContents();
+        if (str.empty()) {
+            ParseError("unexpected content: empty string.");
+        }
+        
         elements.insert(ElementMap::value_type(str,new_Element(*n,parser)));
 
         // Element() should stop at the next Key token (or right after a Close token)
@@ -462,7 +466,7 @@ std::string ParseTokenAsString(const Token& t, const char*& err_out)
 
     if (t.Type() != TokenType_DATA) {
         err_out = "expected TOK_DATA token";
-        return "";
+        return std::string();
     }
 
     if(t.IsBinary())
@@ -470,7 +474,7 @@ std::string ParseTokenAsString(const Token& t, const char*& err_out)
         const char* data = t.begin();
         if (data[0] != 'S') {
             err_out = "failed to parse S(tring), unexpected data type (binary)";
-            return "";
+            return std::string();
         }
 
         // read string length
@@ -484,13 +488,13 @@ std::string ParseTokenAsString(const Token& t, const char*& err_out)
     const size_t length = static_cast<size_t>(t.end() - t.begin());
     if(length < 2) {
         err_out = "token is too short to hold a string";
-        return "";
+        return std::string();
     }
 
     const char* s = t.begin(), *e = t.end() - 1;
     if (*s != '\"' || *e != '\"') {
         err_out = "expected double quoted string";
-        return "";
+        return std::string();
     }
 
     return std::string(s+1,length-2);
@@ -642,8 +646,7 @@ void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4);
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -733,8 +736,7 @@ void ParseVectorDataArray(std::vector<aiColor4D>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4);
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -816,8 +818,7 @@ void ParseVectorDataArray(std::vector<aiVector2D>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4);
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -892,8 +893,7 @@ void ParseVectorDataArray(std::vector<int>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * 4;
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -954,8 +954,7 @@ void ParseVectorDataArray(std::vector<float>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4);
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -1019,8 +1018,7 @@ void ParseVectorDataArray(std::vector<unsigned int>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * 4;
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -1088,8 +1086,7 @@ void ParseVectorDataArray(std::vector<uint64_t>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * 8;
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 
@@ -1150,8 +1147,7 @@ void ParseVectorDataArray(std::vector<int64_t>& out, const Element& el)
 
         ai_assert(data == end);
         uint64_t dataToRead = static_cast<uint64_t>(count) * 8;
-        ai_assert(buff.size() == dataToRead);
+        if (dataToRead != buff.size()) {
-        if (dataToRead > buff.size()) {
             ParseError("Invalid read size (binary)",&el);
         }
 

code/AssetLib/FBX/FBXProperties.cpp

@@ -52,6 +52,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "FBXDocumentUtil.h"
 #include "FBXProperties.h"
 
+#include <utility>
+
 namespace Assimp {
 namespace FBX {
 
@@ -131,7 +133,7 @@ Property* ReadTypedProperty(const Element& element)
             ParseTokenAsFloat(*tok[6]))
         );
     }
-    else if (!strcmp(cs,"double") || !strcmp(cs,"Number") || !strcmp(cs,"Float") || !strcmp(cs,"FieldOfView") || !strcmp( cs, "UnitScaleFactor" ) ) {
+    else if (!strcmp(cs,"double") || !strcmp(cs,"Number") || !strcmp(cs,"float") || !strcmp(cs,"Float") || !strcmp(cs,"FieldOfView") || !strcmp( cs, "UnitScaleFactor" ) ) {
         checkTokenCount(tok, 5);
         return new TypedProperty<float>(ParseTokenAsFloat(*tok[4]));
     }
@@ -155,7 +157,7 @@ std::string PeekPropertyName(const Element& element)
     ai_assert(element.KeyToken().StringContents() == "P");
     const TokenList& tok = element.Tokens();
     if(tok.size() < 4) {
-        return "";
+        return std::string();
     }
 
     return ParseTokenAsString(*tok[0]);
@@ -172,10 +174,8 @@ PropertyTable::PropertyTable()
 }
 
 // ------------------------------------------------------------------------------------------------
-PropertyTable::PropertyTable(const Element& element, std::shared_ptr<const PropertyTable> templateProps)
+PropertyTable::PropertyTable(const Element &element, std::shared_ptr<const PropertyTable> templateProps) :
-: templateProps(templateProps)
+        templateProps(std::move(templateProps)), element(&element) {
-, element(&element)
-{
     const Scope& scope = GetRequiredScope(element);
     for(const ElementMap::value_type& v : scope.Elements()) {
         if(v.first != "P") {
@@ -199,7 +199,6 @@ PropertyTable::PropertyTable(const Element& element, std::shared_ptr<const Prope
     }
 }
 
-
 // ------------------------------------------------------------------------------------------------
 PropertyTable::~PropertyTable()
 {

code/AssetLib/HMP/HMPLoader.cpp

@@ -47,6 +47,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AssetLib/HMP/HMPLoader.h"
 #include "AssetLib/MD2/MD2FileData.h"
 
+#include <assimp/StringUtils.h>
 #include <assimp/importerdesc.h>
 #include <assimp/scene.h>
 #include <assimp/DefaultLogger.hpp>
@@ -151,12 +152,7 @@ void HMPImporter::InternReadFile(const std::string &pFile,
         InternReadFile_HMP7();
     } else {
         // Print the magic word to the logger
-        char szBuffer[5];
+        std::string szBuffer = ai_str_toprintable((const char *)&iMagic, sizeof(iMagic));
-        szBuffer[0] = ((char *)&iMagic)[0];
-        szBuffer[1] = ((char *)&iMagic)[1];
-        szBuffer[2] = ((char *)&iMagic)[2];
-        szBuffer[3] = ((char *)&iMagic)[3];
-        szBuffer[4] = '\0';
 
         delete[] mBuffer;
         mBuffer = nullptr;
@@ -455,6 +451,7 @@ void HMPImporter::ReadFirstSkin(unsigned int iNumSkins, const unsigned char *szC
 
     // now we need to skip any other skins ...
     for (unsigned int i = 1; i < iNumSkins; ++i) {
+        SizeCheck(szCursor + 3 * sizeof(uint32_t));
         iType = *((uint32_t *)szCursor);
         szCursor += sizeof(uint32_t);
         iWidth = *((uint32_t *)szCursor);

code/AssetLib/HMP/HMPLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -42,15 +41,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file  HMPLoader.h
  *  @brief Declaration of the HMP importer class
  */
-
+#pragma once
 #ifndef AI_HMPLOADER_H_INCLUDED
 #define AI_HMPLOADER_H_INCLUDED
 
-// internal headers
 #include <assimp/BaseImporter.h>
 
-#include "AssetLib/MDL/MDLLoader.h"
+// internal headers
 #include "AssetLib/HMP/HMPFileData.h"
+#include "AssetLib/MDL/MDLLoader.h"
 
 namespace Assimp {
 using namespace HMP;
@@ -58,39 +57,31 @@ using namespace HMP;
 // ---------------------------------------------------------------------------
 /** Used to load 3D GameStudio HMP files (terrains)
 */
-class HMPImporter : public MDLImporter
+class HMPImporter : public MDLImporter {
-{
 public:
     HMPImporter();
-    ~HMPImporter();
+    ~HMPImporter() override;
-
-
-public:
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
-        bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
-
-
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc *GetInfo() const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
     * See BaseImporter::InternReadFile() for details
     */
     void InternReadFile(const std::string &pFile, aiScene *pScene,
-        IOSystem* pIOHandler);
+            IOSystem *pIOHandler) override;
-
-protected:
 
     // -------------------------------------------------------------------
     /** Import a HMP4 file
@@ -142,12 +133,8 @@ protected:
     */
     void ReadFirstSkin(unsigned int iNumSkins, const unsigned char *szCursor,
             const unsigned char **szCursorOut);
-
-private:
-
 };
 
 } // end of namespace Assimp
 
 #endif // AI_HMPIMPORTER_H_INC
-

code/AssetLib/IFC/IFCBoolean.cpp

@@ -48,7 +48,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "Common/PolyTools.h"
 #include "PostProcessing/ProcessHelper.h"
 
-#include <assimp/Defines.h>
 
 #include <iterator>
 #include <tuple>
@@ -513,7 +512,7 @@ void ProcessPolygonalBoundedBooleanHalfSpaceDifference(const Schema_2x3::IfcPoly
             }
 
             // we got a list of in-out-combinations of intersections. That should be an even number of intersections, or
-            // we're fucked.
+            // we are facing a non-recoverable error.
             if ((intersections.size() & 1) != 0) {
                 IFCImporter::LogWarn("Odd number of intersections, can't work with that. Omitting half space boundary check.");
                 continue;
@@ -715,7 +714,7 @@ void ProcessBoolean(const Schema_2x3::IfcBooleanResult &boolean, TempMesh &resul
     //   DIFFERENCE
     if (const Schema_2x3::IfcBooleanResult *const clip = boolean.ToPtr<Schema_2x3::IfcBooleanResult>()) {
         if (clip->Operator != "DIFFERENCE") {
-            IFCImporter::LogWarn("encountered unsupported boolean operator: " + (std::string)clip->Operator);
+            IFCImporter::LogWarn("encountered unsupported boolean operator: ", (std::string)clip->Operator);
             return;
         }
 
@@ -756,7 +755,7 @@ void ProcessBoolean(const Schema_2x3::IfcBooleanResult &boolean, TempMesh &resul
             ProcessBooleanExtrudedAreaSolidDifference(as, result, first_operand, conv);
         }
     } else {
-        IFCImporter::LogWarn("skipping unknown IfcBooleanResult entity, type is " + boolean.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcBooleanResult entity, type is ", boolean.GetClassName());
     }
 }
 

code/AssetLib/IFC/IFCGeometry.cpp

@@ -216,7 +216,7 @@ void ProcessConnectedFaceSet(const Schema_2x3::IfcConnectedFaceSet& fset, TempMe
                 }
             }
             else {
-                IFCImporter::LogWarn("skipping unknown IfcFaceBound entity, type is " + bound.Bound->GetClassName());
+                IFCImporter::LogWarn("skipping unknown IfcFaceBound entity, type is ", bound.Bound->GetClassName());
                 continue;
             }
 
@@ -729,7 +729,7 @@ void ProcessSweptAreaSolid(const Schema_2x3::IfcSweptAreaSolid& swept, TempMesh&
         ProcessRevolvedAreaSolid(*rev,meshout,conv);
     }
     else {
-        IFCImporter::LogWarn("skipping unknown IfcSweptAreaSolid entity, type is " + swept.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcSweptAreaSolid entity, type is ", swept.GetClassName());
     }
 }
 
@@ -740,7 +740,7 @@ bool ProcessGeometricItem(const Schema_2x3::IfcRepresentationItem& geo, unsigned
     bool fix_orientation = false;
     std::shared_ptr< TempMesh > meshtmp = std::make_shared<TempMesh>();
     if(const Schema_2x3::IfcShellBasedSurfaceModel* shellmod = geo.ToPtr<Schema_2x3::IfcShellBasedSurfaceModel>()) {
-        for(std::shared_ptr<const Schema_2x3::IfcShell> shell :shellmod->SbsmBoundary) {
+        for (const std::shared_ptr<const Schema_2x3::IfcShell> &shell : shellmod->SbsmBoundary) {
             try {
                 const ::Assimp::STEP::EXPRESS::ENTITY& e = shell->To<::Assimp::STEP::EXPRESS::ENTITY>();
                 const Schema_2x3::IfcConnectedFaceSet& fs = conv.db.MustGetObject(e).To<Schema_2x3::IfcConnectedFaceSet>();
@@ -781,7 +781,7 @@ bool ProcessGeometricItem(const Schema_2x3::IfcRepresentationItem& geo, unsigned
         return false;
     }
     else {
-        IFCImporter::LogWarn("skipping unknown IfcGeometricRepresentationItem entity, type is " + geo.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcGeometricRepresentationItem entity, type is ", geo.GetClassName());
         return false;
     }
 

code/AssetLib/IFC/IFCLoader.cpp

@@ -115,7 +115,7 @@ static const aiImporterDesc desc = {
     0,
     0,
     0,
-    "ifc ifczip stp"
+    "ifc ifczip step stp"
 };
 
 // ------------------------------------------------------------------------------------------------
@@ -137,9 +137,8 @@ bool IFCImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool c
         // note: this is the common identification for STEP-encoded files, so
         // it is only unambiguous as long as we don't support any further
         // file formats with STEP as their encoding.
-        const char *tokens[] = { "ISO-10303-21" };
+        static const char * const tokens[] = { "ISO-10303-21" };
-        const bool found(SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1));
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
-        return found;
     }
     return false;
 }
@@ -243,12 +242,12 @@ void IFCImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     }
 
     if (!DefaultLogger::isNullLogger()) {
-        LogDebug("File schema is \'" + head.fileSchema + '\'');
+        LogDebug("File schema is \'", head.fileSchema, '\'');
         if (head.timestamp.length()) {
-            LogDebug("Timestamp \'" + head.timestamp + '\'');
+            LogDebug("Timestamp \'", head.timestamp, '\'');
         }
         if (head.app.length()) {
-            LogDebug("Application/Exporter identline is \'" + head.app + '\'');
+            LogDebug("Application/Exporter identline is \'", head.app, '\'');
         }
     }
 
@@ -315,7 +314,7 @@ void IFCImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 
     // this must be last because objects are evaluated lazily as we process them
     if (!DefaultLogger::isNullLogger()) {
-        LogDebug((Formatter::format(), "STEP: evaluated ", db->GetEvaluatedObjectCount(), " object records"));
+        LogDebug("STEP: evaluated ", db->GetEvaluatedObjectCount(), " object records");
     }
 }
 
@@ -403,7 +402,7 @@ void ResolveObjectPlacement(aiMatrix4x4 &m, const Schema_2x3::IfcObjectPlacement
             m = tmpM * m;
         }
     } else {
-        IFCImporter::LogWarn("skipping unknown IfcObjectPlacement entity, type is " + place.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcObjectPlacement entity, type is ", place.GetClassName());
     }
 }
 
@@ -438,7 +437,7 @@ bool ProcessMappedItem(const Schema_2x3::IfcMappedItem &mapped, aiNode *nd_src,
     bool got = false;
     for (const Schema_2x3::IfcRepresentationItem &item : repr.Items) {
         if (!ProcessRepresentationItem(item, localmatid, meshes, conv)) {
-            IFCImporter::LogWarn("skipping mapped entity of type " + item.GetClassName() + ", no representations could be generated");
+            IFCImporter::LogWarn("skipping mapped entity of type ", item.GetClassName(), ", no representations could be generated");
         } else
             got = true;
     }
@@ -567,7 +566,7 @@ typedef std::map<std::string, std::string> Metadata;
 
 // ------------------------------------------------------------------------------------------------
 void ProcessMetadata(const Schema_2x3::ListOf<Schema_2x3::Lazy<Schema_2x3::IfcProperty>, 1, 0> &set, ConversionData &conv, Metadata &properties,
-        const std::string &prefix = "",
+        const std::string &prefix = std::string(),
         unsigned int nest = 0) {
     for (const Schema_2x3::IfcProperty &property : set) {
         const std::string &key = prefix.length() > 0 ? (prefix + "." + property.Name) : property.Name;
@@ -618,7 +617,7 @@ void ProcessMetadata(const Schema_2x3::ListOf<Schema_2x3::Lazy<Schema_2x3::IfcPr
                 ProcessMetadata(complexProp->HasProperties, conv, properties, key, nest + 1);
             }
         } else {
-            properties[key] = "";
+            properties[key] = std::string();
         }
     }
 }
@@ -856,7 +855,7 @@ void ProcessSpatialStructures(ConversionData &conv) {
         if (!prod) {
             continue;
         }
-        IFCImporter::LogVerboseDebug("looking at spatial structure `" + (prod->Name ? prod->Name.Get() : "unnamed") + "`" + (prod->ObjectType ? " which is of type " + prod->ObjectType.Get() : ""));
+        IFCImporter::LogVerboseDebug("looking at spatial structure `", (prod->Name ? prod->Name.Get() : "unnamed"), "`", (prod->ObjectType ? " which is of type " + prod->ObjectType.Get() : ""));
 
         // the primary sites are referenced by an IFCRELAGGREGATES element which assigns them to the IFCPRODUCT
         const STEP::DB::RefMap &refs = conv.db.GetRefs();

code/AssetLib/IFC/IFCLoader.h

@@ -53,14 +53,18 @@ namespace Assimp    {
 
 // TinyFormatter.h
 namespace Formatter {
-        template <typename T,typename TR, typename A> class basic_formatter;
+
+template <typename T, typename TR, typename A>
+class basic_formatter;
 typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
-    }
+
+} // namespace Formatter
 
 namespace STEP {
-        class DB;
-    }
 
+class DB;
+
+}
 
 // -------------------------------------------------------------------------------------------
 /** Load the IFC format, which is an open specification to describe building and construction
@@ -69,52 +73,12 @@ namespace Assimp    {
  See http://en.wikipedia.org/wiki/Industry_Foundation_Classes
 */
 // -------------------------------------------------------------------------------------------
-class IFCImporter : public BaseImporter, public LogFunctions<IFCImporter>
+class IFCImporter : public BaseImporter, public LogFunctions<IFCImporter> {
-{
 public:
-    IFCImporter();
-    ~IFCImporter();
-
-
-public:
-
-    // --------------------
-    bool CanRead( const std::string& pFile,
-        IOSystem* pIOHandler,
-        bool checkSig
-    ) const;
-
-protected:
-
-    // --------------------
-    const aiImporterDesc* GetInfo () const;
-
-    // --------------------
-    void SetupProperties(const Importer* pImp);
-
-    // --------------------
-    void InternReadFile( const std::string& pFile,
-        aiScene* pScene,
-        IOSystem* pIOHandler
-    );
-
-private:
-
-
-public:
-
-
     // loader settings, publicly accessible via their corresponding AI_CONFIG constants
-    struct Settings
+    struct Settings {
-    {
+        Settings() :
-        Settings()
+                skipSpaceRepresentations(), useCustomTriangulation(), skipAnnotations(), conicSamplingAngle(10.f), cylindricalTessellation(32) {}
-            : skipSpaceRepresentations()
-            , useCustomTriangulation()
-            , skipAnnotations()
-            , conicSamplingAngle(10.f)
-			, cylindricalTessellation(32)
-        {}
-
 
         bool skipSpaceRepresentations;
         bool useCustomTriangulation;
@@ -123,9 +87,27 @@ public:
         int cylindricalTessellation;
     };
 
+    IFCImporter();
+    ~IFCImporter() override;
+
+    // --------------------
+    bool CanRead(const std::string &pFile,
+            IOSystem *pIOHandler,
+            bool checkSig) const override;
+
+protected:
+    // --------------------
+    const aiImporterDesc *GetInfo() const override;
+
+    // --------------------
+    void SetupProperties(const Importer *pImp) override;
+
+    // --------------------
+    void InternReadFile(const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler) override;
 
 private:
-
     Settings settings;
 
 }; // !class IFCImporter

code/AssetLib/IFC/IFCMaterial.cpp

@@ -64,7 +64,7 @@ static int ConvertShadingMode(const std::string& name) {
     else if (name == "PHONG") {
         return aiShadingMode_Phong;
     }
-    IFCImporter::LogWarn("shading mode "+name+" not recognized by Assimp, using Phong instead");
+    IFCImporter::LogWarn("shading mode ", name, " not recognized by Assimp, using Phong instead");
     return aiShadingMode_Phong;
 }
 
@@ -75,7 +75,7 @@ static void FillMaterial(aiMaterial* mat,const IFC::Schema_2x3::IfcSurfaceStyle*
     mat->AddProperty(&name,AI_MATKEY_NAME);
 
     // now see which kinds of surface information are present
-    for(std::shared_ptr< const IFC::Schema_2x3::IfcSurfaceStyleElementSelect > sel2 : surf->Styles) {
+    for (const std::shared_ptr<const IFC::Schema_2x3::IfcSurfaceStyleElementSelect> &sel2 : surf->Styles) {
         if (const IFC::Schema_2x3::IfcSurfaceStyleShading* shade = sel2->ResolveSelectPtr<IFC::Schema_2x3::IfcSurfaceStyleShading>(conv.db)) {
             aiColor4D col_base,col;
 
@@ -134,7 +134,7 @@ unsigned int ProcessMaterials(uint64_t id, unsigned int prevMatId, ConversionDat
     for(;range.first != range.second; ++range.first) {
         if(const IFC::Schema_2x3::IfcStyledItem* const styled = conv.db.GetObject((*range.first).second)->ToPtr<IFC::Schema_2x3::IfcStyledItem>()) {
             for(const IFC::Schema_2x3::IfcPresentationStyleAssignment& as : styled->Styles) {
-                for(std::shared_ptr<const IFC::Schema_2x3::IfcPresentationStyleSelect> sel : as.Styles) {
+                for (const std::shared_ptr<const IFC::Schema_2x3::IfcPresentationStyleSelect> &sel : as.Styles) {
 
                     if( const IFC::Schema_2x3::IfcSurfaceStyle* const surf = sel->ResolveSelectPtr<IFC::Schema_2x3::IfcSurfaceStyle>(conv.db) ) {
                         // try to satisfy from cache
@@ -145,7 +145,7 @@ unsigned int ProcessMaterials(uint64_t id, unsigned int prevMatId, ConversionDat
                         // not found, create new material
                         const std::string side = static_cast<std::string>(surf->Side);
                         if( side != "BOTH" ) {
-                            IFCImporter::LogWarn("ignoring surface side marker on IFC::IfcSurfaceStyle: " + side);
+                            IFCImporter::LogWarn("ignoring surface side marker on IFC::IfcSurfaceStyle: ", side);
                         }
 
                         std::unique_ptr<aiMaterial> mat(new aiMaterial());

code/AssetLib/IFC/IFCProfile.cpp

@@ -68,7 +68,7 @@ bool ProcessCurve(const Schema_2x3::IfcCurve& curve,  TempMesh& meshout, Convers
 {
     std::unique_ptr<const Curve> cv(Curve::Convert(curve,conv));
     if (!cv) {
-        IFCImporter::LogWarn("skipping unknown IfcCurve entity, type is " + curve.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcCurve entity, type is ", curve.GetClassName());
         return false;
     }
 
@@ -78,7 +78,7 @@ bool ProcessCurve(const Schema_2x3::IfcCurve& curve,  TempMesh& meshout, Convers
             bc->SampleDiscrete(meshout);
         }
         catch(const  CurveError& cv) {
-            IFCImporter::LogError(cv.mStr + " (error occurred while processing curve)");
+            IFCImporter::LogError(cv.mStr, " (error occurred while processing curve)");
             return false;
         }
         meshout.mVertcnt.push_back(static_cast<unsigned int>(meshout.mVerts.size()));
@@ -152,7 +152,7 @@ void ProcessParametrizedProfile(const Schema_2x3::IfcParameterizedProfileDef& de
         meshout.mVertcnt.push_back(12);
     }
     else {
-        IFCImporter::LogWarn("skipping unknown IfcParameterizedProfileDef entity, type is " + def.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcParameterizedProfileDef entity, type is ", def.GetClassName());
         return;
     }
 
@@ -174,7 +174,7 @@ bool ProcessProfile(const Schema_2x3::IfcProfileDef& prof, TempMesh& meshout, Co
         ProcessParametrizedProfile(*cparam,meshout,conv);
     }
     else {
-        IFCImporter::LogWarn("skipping unknown IfcProfileDef entity, type is " + prof.GetClassName());
+        IFCImporter::LogWarn("skipping unknown IfcProfileDef entity, type is ", prof.GetClassName());
         return false;
     }
     meshout.RemoveAdjacentDuplicates();

code/AssetLib/IFC/IFCUtil.cpp

@@ -49,7 +49,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AssetLib/IFC/IFCUtil.h"
 #include "Common/PolyTools.h"
 #include "PostProcessing/ProcessHelper.h"
-#include <assimp/Defines.h>
 
 namespace Assimp {
 namespace IFC {
@@ -506,7 +505,7 @@ IfcFloat ConvertSIPrefix(const std::string& prefix)
         return 1e-18f;
     }
     else {
-        IFCImporter::LogError("Unrecognized SI prefix: " + prefix);
+        IFCImporter::LogError("Unrecognized SI prefix: ", prefix);
         return 1;
     }
 }

code/AssetLib/IFC/IFCUtil.h

@@ -54,6 +54,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/mesh.h>
 #include <assimp/material.h>
 
+#include <utility>
+
 struct aiNode;
 
 namespace Assimp {
@@ -139,12 +141,8 @@ struct TempOpening
     // ------------------------------------------------------------------------------
     TempOpening(const IFC::Schema_2x3::IfcSolidModel *solid, IfcVector3 extrusionDir,
             std::shared_ptr<TempMesh> profileMesh,
-        std::shared_ptr<TempMesh> profileMesh2D)
+            std::shared_ptr<TempMesh> profileMesh2D) :
-        : solid(solid)
+            solid(solid), extrusionDir(extrusionDir), profileMesh(std::move(profileMesh)), profileMesh2D(std::move(profileMesh2D)) {
-        , extrusionDir(extrusionDir)
-        , profileMesh(profileMesh)
-        , profileMesh2D(profileMesh2D)
-    {
     }
 
     // ------------------------------------------------------------------------------

code/AssetLib/Irr/IRRLoader.cpp

@@ -106,7 +106,7 @@ bool IRRImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool c
 		if (nullptr == pIOHandler) {
 			return true;
 		}
-		const char *tokens[] = { "irr_scene" };
+		static const char * const tokens[] = { "irr_scene" };
 		return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
 	}
 
@@ -132,7 +132,7 @@ void IRRImporter::SetupProperties(const Importer *pImp) {
 }
 
 // ------------------------------------------------------------------------------------------------
-// Build a mesh tha consists of a single squad (a side of a skybox)
+// Build a mesh that consists of a single squad (a side of a skybox)
 aiMesh *IRRImporter::BuildSingleQuadMesh(const SkyboxVertex &v1,
 		const SkyboxVertex &v2,
 		const SkyboxVertex &v3,
@@ -639,7 +639,7 @@ void IRRImporter::GenerateGraph(Node *root, aiNode *rootOut, aiScene *scene,
 			// graph we're currently building
 			aiScene *localScene = batch.GetImport(root->id);
 			if (!localScene) {
-				ASSIMP_LOG_ERROR("IRR: Unable to load external file: " + root->meshPath);
+				ASSIMP_LOG_ERROR("IRR: Unable to load external file: ", root->meshPath);
 				break;
 			}
 			attach.push_back(AttachmentInfo(localScene, rootOut));
@@ -859,13 +859,13 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 
 	// Check whether we can read from the file
 	if (file.get() == nullptr) {
-		throw DeadlyImportError("Failed to open IRR file " + pFile + "");
+        throw DeadlyImportError("Failed to open IRR file ", pFile);
 	}
 
 	// Construct the irrXML parser
 	XmlParser st;
     if (!st.parse( file.get() )) {
-        return;
+        throw DeadlyImportError("XML parse error while loading IRR file ", pFile);
     }
     pugi::xml_node rootElement = st.getRootNode();
 
@@ -963,7 +963,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 						ASSIMP_LOG_ERROR("IRR: Billboards are not supported by Assimp");
 						nd = new Node(Node::DUMMY);
 					} else {
-						ASSIMP_LOG_WARN("IRR: Found unknown node: " + std::string(attrib.name()));
+						ASSIMP_LOG_WARN("IRR: Found unknown node: ", attrib.name());
 
 						/*  We skip the contents of nodes we don't know.
                          *  We parse the transformation and all animators
@@ -1181,7 +1181,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 											lights.pop_back();
 											curNode->type = Node::DUMMY;
 
-											ASSIMP_LOG_ERROR("Ignoring light of unknown type: " + prop.value);
+											ASSIMP_LOG_ERROR("Ignoring light of unknown type: ", prop.value);
 										}
 									} else if ((prop.name == "Mesh" && Node::MESH == curNode->type) ||
 											   Node::ANIMMESH == curNode->type) {
@@ -1225,7 +1225,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 										} else if (prop.value == "followSpline") {
 											curAnim->type = Animator::FOLLOW_SPLINE;
 										} else {
-											ASSIMP_LOG_WARN("IRR: Ignoring unknown animator: " + prop.value);
+											ASSIMP_LOG_WARN("IRR: Ignoring unknown animator: ", prop.value);
 
 											curAnim->type = Animator::UNKNOWN;
 										}

code/AssetLib/Irr/IRRLoader.h

@@ -65,22 +65,21 @@ namespace Assimp    {
 class IRRImporter : public BaseImporter, public IrrlichtBase {
 public:
     IRRImporter();
-    ~IRRImporter();
+    ~IRRImporter() override;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      *  See BaseImporter::CanRead() for details.
      */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
 protected:
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc* GetInfo () const override;
-    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
+    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer* pImp) override;
 
 private:
-
     /** Data structure for a scene-graph node animator
      */
     struct Animator {

code/AssetLib/Irr/IRRMeshLoader.cpp

@@ -101,7 +101,7 @@ bool IRRMeshImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bo
          *  must return true here.
          */
 		if (!pIOHandler) return true;
-		const char *tokens[] = { "irrmesh" };
+		static const char * const tokens[] = { "irrmesh" };
 		return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
 	}
 	return false;
@@ -135,12 +135,12 @@ void IRRMeshImporter::InternReadFile(const std::string &pFile,
 
 	// Check whether we can read from the file
 	if (file.get() == NULL)
-		throw DeadlyImportError("Failed to open IRRMESH file " + pFile + "");
+        throw DeadlyImportError("Failed to open IRRMESH file ", pFile);
 
 	// Construct the irrXML parser
 	XmlParser parser;
     if (!parser.parse( file.get() )) {
-        return;
+        throw DeadlyImportError("XML parse error while loading IRRMESH file ", pFile);
     }
     XmlNode root = parser.getRootNode();