PostProcesswing: add gen-aabb process to postprocessing.

code/CMakeLists.txt

@@ -60,6 +60,7 @@ SOURCE_GROUP( Compiler FILES ${COMPILER_HEADERS})
 
 SET( PUBLIC_HEADERS
   ${HEADER_PATH}/anim.h
+  ${HEADER_PATH}/aabb.h
   ${HEADER_PATH}/ai_assert.h
   ${HEADER_PATH}/camera.h
   ${HEADER_PATH}/color4.h

code/PostProcessing/GenBoundingBoxesProcess.cpp

@@ -0,0 +1,115 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, 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.
+---------------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_BUILD_NO_GENBOUNDINGBOXES_PROCESS
+
+#include "PostProcessing/GenBoundingBoxesProcess.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+
+namespace Assimp {
+
+GenBoundingBoxesProcess::GenBoundingBoxesProcess()
+: BaseProcess() {
+
+}
+
+GenBoundingBoxesProcess::~GenBoundingBoxesProcess() {
+    // empty
+}
+
+bool GenBoundingBoxesProcess::IsActive(unsigned int pFlags) const {
+    return 0 != ( pFlags & aiProcess_GenBoundingBoxes );
+}
+
+void checkMesh(aiMesh* mesh, aiVector3D& min, aiVector3D& max) {
+    ai_assert(nullptr != mesh);
+
+    if (0 == mesh->mNumVertices) {
+        return;
+    }
+
+    for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+        const aiVector3D &pos = mesh->mVertices[i];
+        if (pos.x < min.x) {
+            min.x = pos.x;
+        }
+        if (pos.y < min.y) {
+            min.y = pos.y;
+        }
+        if (pos.z < min.z) {
+            min.z = pos.z;
+        }
+
+        if (pos.x > max.x) {
+            max.x = pos.x;
+        }
+        if (pos.y > max.y) {
+            max.y = pos.y;
+        }
+        if (pos.z > max.z) {
+            max.z = pos.z;
+        }
+    }
+}
+
+void GenBoundingBoxesProcess::Execute(aiScene* pScene) {
+    if (nullptr == pScene) {
+        return;
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        aiMesh* mesh = pScene->mMeshes[i];
+        if (nullptr == mesh) {
+            continue;
+        }
+
+        aiVector3D min(999999, 999999, 999999), max(-999999, -999999, -999999);
+        checkMesh(mesh, min, max);
+        mesh->mAABB.mMin = min;
+        mesh->mAABB.mMax = max;
+    }
+}
+
+} // Namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_GENBOUNDINGBOXES_PROCESS

code/PostProcessing/GenBoundingBoxesProcess.h

@@ -0,0 +1,61 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, 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
+
+#ifndef AI_GENBOUNDINGBOXESPROCESS_H_INC
+#define AI_GENBOUNDINGBOXESPROCESS_H_INC
+
+#include "Common/BaseProcess.h"
+
+namespace Assimp {
+
+class GenBoundingBoxesProcess : public BaseProcess {
+public:
+    GenBoundingBoxesProcess();
+    ~GenBoundingBoxesProcess();
+    bool IsActive(unsigned int pFlags) const override;
+    void Execute(aiScene* pScene) override;
+};
+
+} // Namespace Assimp
+
+#endif // AI_GENBOUNDINGBOXESPROCESS_H_INC

include/assimp/camera.h

@@ -162,7 +162,6 @@ struct aiCamera
      */
     float mClipPlaneFar;
 
-
     /** Screen aspect ratio.
      *
      * This is the ration between the width and the height of the

include/assimp/defs.h

@@ -122,7 +122,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * OPTIMIZEANIMS
  * OPTIMIZEGRAPH
  * GENENTITYMESHES
- * FIXTEXTUREPATHS */
+ * FIXTEXTUREPATHS
+ * GENBOUNDINGBOXES */
 //////////////////////////////////////////////////////////////////////////
 
 #ifdef _MSC_VER
@@ -298,6 +299,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #  else
 #    define AI_NO_EXCEPT
 #  endif
-#endif
+#endif // _MSC_VER
 
 #endif // !! AI_DEFINES_H_INC

include/assimp/mesh.h

@@ -48,7 +48,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef AI_MESH_H_INC
 #define AI_MESH_H_INC
 
-#include "types.h"
+#include <assimp/types.h>
+#include <assimp/aabb.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -715,6 +716,11 @@ struct aiMesh
      */
     unsigned int mMethod;
 
+    /**
+     *
+     */
+    C_STRUCT aiAABB mAABB;
+	
 #ifdef __cplusplus
 
     //! Default constructor. Initializes all members to 0
@@ -735,7 +741,8 @@ struct aiMesh
     , mMaterialIndex( 0 )
     , mNumAnimMeshes( 0 )
     , mAnimMeshes(nullptr)
-    , mMethod( 0 ) {
+    , mMethod( 0 )
+    , mAABB() {
         for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a ) {
             mNumUVComponents[a] = 0;
             mTextureCoords[a] = nullptr;

include/assimp/postprocess.h

@@ -438,7 +438,7 @@ enum aiPostProcessSteps
     aiProcess_FindInstances = 0x100000,
 
     // -------------------------------------------------------------------------
-    /** <hr>A postprocessing step to reduce the number of meshes.
+    /** <hr>A post-processing step to reduce the number of meshes.
      *
      *  This will, in fact, reduce the number of draw calls.
      *
@@ -450,7 +450,7 @@ enum aiPostProcessSteps
 
 
     // -------------------------------------------------------------------------
-    /** <hr>A postprocessing step to optimize the scene hierarchy.
+    /** <hr>A post-processing step to optimize the scene hierarchy.
      *
      *  Nodes without animations, bones, lights or cameras assigned are
      *  collapsed and joined.
@@ -514,7 +514,7 @@ enum aiPostProcessSteps
 
     // -------------------------------------------------------------------------
     /** <hr>This step splits meshes with many bones into sub-meshes so that each
-     * su-bmesh has fewer or as many bones as a given limit.
+     * sub-mesh has fewer or as many bones as a given limit.
     */
     aiProcess_SplitByBoneCount  = 0x2000000,
 
@@ -541,7 +541,7 @@ enum aiPostProcessSteps
     *  global scaling from your importer settings like in FBX. Use the flag
     *  AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY from the global property table to configure this.
     *
-    *  Use <tt>#AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY</tt> to setup the global scaing factor.
+    *  Use <tt>#AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY</tt> to setup the global scaling factor.
     */
     aiProcess_GlobalScale = 0x8000000,
 
@@ -574,6 +574,11 @@ enum aiPostProcessSteps
      * This process gives sense back to aiProcess_JoinIdenticalVertices
      */
     aiProcess_DropNormals = 0x40000000,
+
+    // -------------------------------------------------------------------------
+    /**
+     */
+    aiProcess_GenBoundingBoxes = 0x80000000
 };