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Merge branch 'master' into obj-pbr-explicit

pull/4440/head
Kim Kulling 2022-04-12 11:12:58 +02:00 committed by GitHub
parent 6943e59886 dc8ba61095
commit aa814a522d
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 89 additions and 37 deletions
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43
code/AssetLib/glTF2/glTF2Importer.cpp
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@ -284,7 +284,7 @@ static aiMaterial *ImportMaterial(std::vector<int> &embeddedTexIdxs, Asset &r, M
aimat->AddProperty(&alphaMode, AI_MATKEY_GLTF_ALPHAMODE);
aimat->AddProperty(&mat.alphaCutoff, 1, AI_MATKEY_GLTF_ALPHACUTOFF);
//pbrSpecularGlossiness
// pbrSpecularGlossiness
if (mat.pbrSpecularGlossiness.isPresent) {
PbrSpecularGlossiness &pbrSG = mat.pbrSpecularGlossiness.value;
@ -606,7 +606,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset &r) {
}
}
if (needTangents) {
if (target.tangent[0]->count != aim->mNumVertices) {
if (!aiAnimMesh.HasNormals()) {
// prevent nullptr access to aiAnimMesh.mNormals below when no normals are available
ASSIMP_LOG_WARN("Bitangents of target ", i, " in mesh \"", mesh.name, "\" can't be computed, because mesh has no normals.");
} else if (target.tangent[0]->count != aim->mNumVertices) {
ASSIMP_LOG_WARN("Tangents of target ", i, " in mesh \"", mesh.name, "\" does not match the vertex count");
} else {
Tangent *tangent = nullptr;
@ -698,12 +701,12 @@ void glTF2Importer::ImportMeshes(glTF2::Asset &r) {
nFaces = count - 2;
facePtr = faces = new aiFace[nFaces];
for (unsigned int i = 0; i < nFaces; ++i) {
//The ordering is to ensure that the triangles are all drawn with the same orientation
// The ordering is to ensure that the triangles are all drawn with the same orientation
if ((i + 1) % 2 == 0) {
//For even n, vertices n + 1, n, and n + 2 define triangle n
// For even n, vertices n + 1, n, and n + 2 define triangle n
SetFaceAndAdvance3(facePtr, aim->mNumVertices, data.GetUInt(i + 1), data.GetUInt(i), data.GetUInt(i + 2));
} else {
//For odd n, vertices n, n+1, and n+2 define triangle n
// For odd n, vertices n, n+1, and n+2 define triangle n
SetFaceAndAdvance3(facePtr, aim->mNumVertices, data.GetUInt(i), data.GetUInt(i + 1), data.GetUInt(i + 2));
}
}
@ -776,12 +779,12 @@ void glTF2Importer::ImportMeshes(glTF2::Asset &r) {
nFaces = count - 2;
facePtr = faces = new aiFace[nFaces];
for (unsigned int i = 0; i < nFaces; ++i) {
//The ordering is to ensure that the triangles are all drawn with the same orientation
// The ordering is to ensure that the triangles are all drawn with the same orientation
if ((i + 1) % 2 == 0) {
//For even n, vertices n + 1, n, and n + 2 define triangle n
// For even n, vertices n + 1, n, and n + 2 define triangle n
SetFaceAndAdvance3(facePtr, aim->mNumVertices, i + 1, i, i + 2);
} else {
//For odd n, vertices n, n+1, and n+2 define triangle n
// For odd n, vertices n, n+1, and n+2 define triangle n
SetFaceAndAdvance3(facePtr, aim->mNumVertices, i, i + 1, i + 2);
}
}
@ -904,14 +907,14 @@ void glTF2Importer::ImportLights(glTF2::Asset &r) {
ail->mAttenuationLinear = 0.0;
ail->mAttenuationQuadratic = 0.0;
} else {
//in PBR attenuation is calculated using inverse square law which can be expressed
//using assimps equation: 1/(att0 + att1 * d + att2 * d*d) with the following parameters
//this is correct equation for the case when range (see
//https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual)
//is not present. When range is not present it is assumed that it is infinite and so numerator is 1.
//When range is present then numerator might be any value in range [0,1] and then assimps equation
//will not suffice. In this case range is added into metadata in ImportNode function
//and its up to implementation to read it when it wants to
// in PBR attenuation is calculated using inverse square law which can be expressed
// using assimps equation: 1/(att0 + att1 * d + att2 * d*d) with the following parameters
// this is correct equation for the case when range (see
// https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual)
// is not present. When range is not present it is assumed that it is infinite and so numerator is 1.
// When range is present then numerator might be any value in range [0,1] and then assimps equation
// will not suffice. In this case range is added into metadata in ImportNode function
// and its up to implementation to read it when it wants to
ail->mAttenuationConstant = 0.0;
ail->mAttenuationLinear = 0.0;
ail->mAttenuationQuadratic = 1.0;
@ -1161,8 +1164,8 @@ aiNode *ImportNode(aiScene *pScene, glTF2::Asset &r, std::vector<unsigned int> &
if (node.light) {
pScene->mLights[node.light.GetIndex()]->mName = ainode->mName;
//range is optional - see https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
//it is added to meta data of parent node, because there is no other place to put it
// range is optional - see https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
// it is added to meta data of parent node, because there is no other place to put it
if (node.light->range.isPresent) {
if (!ainode->mMetaData) {
ainode->mMetaData = aiMetadata::Alloc(1);
@ -1556,9 +1559,9 @@ void glTF2Importer::ImportEmbeddedTextures(glTF2::Asset &r) {
if (ext) {
if (strcmp(ext, "jpeg") == 0) {
ext = "jpg";
} else if (strcmp(ext, "ktx2") == 0) { //basisu: ktx remains
} else if (strcmp(ext, "ktx2") == 0) { // basisu: ktx remains
ext = "kx2";
} else if (strcmp(ext, "basis") == 0) { //basisu
} else if (strcmp(ext, "basis") == 0) { // basisu
ext = "bu";
}

1
scripts/android_crosscompile/.gitignore vendored 100644
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@ -0,0 +1 @@
output

82
scripts/android_crosscompile/make_android.bat
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@ -1,28 +1,76 @@
@echo off
set ASSIMP_PATH=D:\projects\asset-importer-lib\assimp
set CMAKE_PATH="C:\Program Files\CMake\bin\cmake.exe"
set ANDROID_NDK_PATH=C:\Users\kimkulling\AppData\Local\Android\Sdk\ndk-bundle
set ANDROID_CMAKE_PATH=contrib\android-cmake
set ANDROID_PLATFORM=21
set /p ANDROID_PLATFORM="Enter Android platform - Enter to use %ANDROID_PLATFORM%: "
pushd %ASSIMP_PATH%
set ANDROID_ABI=armeabi-v7a
set /p ANDROID_ABI="Enter Android ABI ( armeabi-v7a, arm64-v8a , x86 , x86_64 ) - Enter to use %ANDROID_ABI% : "
rmdir /s /q build
mkdir build
cd build
set COMMON_CXX_FLAGS=-DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fexceptions -frtti -stdlib=libc++
set COMMON_C_FLAGS=-DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fexceptions
%CMAKE_PATH% .. ^
-G"MinGW Makefiles" ^
if %ANDROID_ABI% == armeabi-v7a (
set CXX_FLAGS="%COMMON_CXX_FLAGS% -march=armv7-a -mthumb --target=armv7-none-linux-androideabi%ANDROID_PLATFORM%"
set C_FLAGS="%COMMON_C_FLAGS% -march=armv7-a -mthumb --target=armv7-none-linux-androideabi%ANDROID_PLATFORM%"
)
if %ANDROID_ABI% == arm64-v8a (
set CXX_FLAGS="%COMMON_CXX_FLAGS% -march=armv8-a --target=aarch64-none-linux-android%ANDROID_PLATFORM%"
set C_FLAGS="%COMMON_C_FLAGS% -march=armv8-a --target=aarch64-none-linux-android%ANDROID_PLATFORM%"
)
if %ANDROID_ABI% == x86 (
set CXX_FLAGS="%COMMON_CXX_FLAGS% --target=i686-none-linux-android%ANDROID_PLATFORM%"
set C_FLAGS="%COMMON_C_FLAGS% --target=i686-none-linux-android%ANDROID_PLATFORM%"
)
if %ANDROID_ABI% == x86_64 (
set CXX_FLAGS="%COMMON_CXX_FLAGS%"
set C_FLAGS="%COMMON_C_FLAGS%"
)
set CMAKE_PATH="%ProgramFiles%\CMake\bin\cmake.exe"
if exist %CMAKE_PATH% (
echo Found cmake at %CMAKE_PATH%
) else (
set /p CMAKE_PATH="Enter cmake.exe path: "
)
set ANDROID_NDK_PATH=""
FOR /F "tokens=* USEBACKQ" %%F IN (`dir "%LocalAppData%\Android\Sdk\ndk" /b /o:n /a:d`) DO (
SET ANDROID_NDK_PATH="%LocalAppData%\Android\Sdk\ndk\%%F"
)
if exist %ANDROID_NDK_PATH% (
echo Found NDK at %ANDROID_NDK_PATH%
) else (
set /p ANDROID_NDK_PATH="Enter ndk path: "
)
set BUILD_FOLDER=build
rmdir /s /q %BUILD_FOLDER%
mkdir %BUILD_FOLDER%
%CMAKE_PATH% ^
-G"Unix Makefiles" ^
-DCMAKE_BUILD_TYPE=Release ^
-DCMAKE_TOOLCHAIN_FILE=%ANDROID_CMAKE_PATH%\android.toolchain.cmake ^
-DCMAKE_TOOLCHAIN_FILE=%ANDROID_NDK_PATH%\build\cmake\android.toolchain.cmake ^
-DCMAKE_MAKE_PROGRAM=%ANDROID_NDK_PATH%\prebuilt\windows-x86_64\bin\make.exe ^
-DANDROID_NDK=%ANDROID_NDK_PATH% ^
-DANDROID_NATIVE_API_LEVEL=android-9 ^
-DOPERATING_SYSTEM="Android" ^
-DANDROID_PLATFORM=%ANDROID_PLATFORM% ^
-DANDROID_ABI=%ANDROID_ABI% ^
-DASSIMP_ANDROID_JNIIOSYSTEM=ON ^
-DANDROID_ABI=arm64-v8a ^
-DASSIMP_BUILD_ZLIB=ON ^
-DASSIMP_BUILD_TESTS=OFF
-DASSIMP_BUILD_TESTS=OFF ^
-DCMAKE_CXX_FLAGS=%CXX_FLAGS% ^
-DMAKE_C_FLAGS=%C_FLAGS% ^
-S "..\.." ^
-B ".\%BUILD_FOLDER%\"
%CMAKE_PATH% --build .
%CMAKE_PATH% --build ".\%BUILD_FOLDER%\"" -- -j 4"
popd
set OUTPUT_FOLDER=.\output\
mkdir %OUTPUT_FOLDER%
mkdir "%OUTPUT_FOLDER%\lib\%ANDROID_ABI%"
copy "%BUILD_FOLDER%\bin\libassimp.so" "%OUTPUT_FOLDER%\lib\%ANDROID_ABI%\"
xcopy %BUILD_FOLDER%\include\assimp\ %OUTPUT_FOLDER%\include\assimp\ /y /s /e
xcopy ..\..\include\assimp\ %OUTPUT_FOLDER%\include\assimp\ /y /s /e
rmdir /s /q %BUILD_FOLDER%