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Pre-transform bones with inverse bind instead of sending it to the shader

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parax0
2016-04-27 20:36:50 -06:00
parent 401fe22b75
commit 50dcc9cc1a
7 changed files with 19 additions and 35 deletions
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6
src/Core/OpenGL/CShaderGenerator.cpp
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@@ -227,7 +227,6 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& rkMat)
ShaderCode << "layout(std140) uniform BoneTransformBlock\n"
<< "{\n"
<< " mat4 BoneTransforms[100];\n"
<< " mat4 InverseBindTransforms[100];\n"
<< "};\n"
<< "\n";
}
@@ -260,11 +259,10 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& rkMat)
<< " \n"
<< " if (BoneIdx > 0)\n"
<< " {\n"
<< " mat4 BoneSpaceTransform = InverseBindTransforms[BoneIdx] * BoneTransforms[BoneIdx];\n"
<< " ModelSpacePos += vec3(vec4(RawPosition, 1) * BoneSpaceTransform * Weight);\n";
<< " ModelSpacePos += vec3(vec4(RawPosition, 1) * BoneTransforms[BoneIdx] * Weight);\n";
if (VtxDesc & eNormal)
ShaderCode << " ModelSpaceNormal += RawNormal.xyz * inverse(transpose(mat3(BoneSpaceTransform))) * Weight;\n";
ShaderCode << " ModelSpaceNormal += RawNormal.xyz * inverse(transpose(mat3(BoneTransforms[BoneIdx]))) * Weight;\n";
ShaderCode << " }\n"
<< " }\n"