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Merge pull request #285 from jdduke/blend_fix_mirror_winding 

Properly orient mirrored blend mesh faces
pull/287/head
Alexander Gessler 2014-05-25 01:34:52 +02:00
parent ecbf09ed8c d9b65f9bd8
commit 62554a055d
1 changed files with 9 additions and 0 deletions
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9
code/BlenderModifier.cpp
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@ -248,6 +248,15 @@ void BlenderModifier_Mirror :: DoIt(aiNode& out, ConversionData& conv_data, co
} }
} }
// Only reverse the winding order if an odd number of axes were mirrored.
if (xs * ys * zs < 0) {
for( unsigned int i = 0; i < mesh->mNumFaces; i++) {
aiFace& face = mesh->mFaces[i];
for( unsigned int fi = 0; fi < face.mNumIndices / 2; ++fi)
std::swap( face.mIndices[fi], face.mIndices[face.mNumIndices - 1 - fi]);
}
}
conv_data.meshes->push_back(mesh); conv_data.meshes->push_back(mesh);
} }
unsigned int* nind = new unsigned int[out.mNumMeshes*2]; unsigned int* nind = new unsigned int[out.mNumMeshes*2];