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PE: Support normal generation when using assimp importer.

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This commit is contained in:
Preben Eriksen
2022-11-29 11:09:34 +01:00
parent 9e1692e3e0
commit ee84d53cdc
1 changed files with 21 additions and 12 deletions
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33
Source/Engine/Tools/ModelTool/ModelTool.Assimp.cpp
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@@ -248,18 +248,6 @@ bool ProcessMesh(ImportedModelData& result, AssimpImporterData& data, const aiMe
}
}
// Normals
if (aMesh->mNormals)
{
mesh.Normals.Set((const Float3*)aMesh->mNormals, aMesh->mNumVertices);
}
// Tangents
if (aMesh->mTangents)
{
mesh.Tangents.Set((const Float3*)aMesh->mTangents, aMesh->mNumVertices);
}
// Indices
const int32 indicesCount = aMesh->mNumFaces * 3;
mesh.Indices.Resize(indicesCount, false);
@@ -277,6 +265,27 @@ bool ProcessMesh(ImportedModelData& result, AssimpImporterData& data, const aiMe
mesh.Indices[i++] = face->mIndices[2];
}
// Normals
if (data.Options.CalculateNormals || !aMesh->mNormals)
{
// Support generation of normals when using assimp.
if (mesh.GenerateNormals(data.Options.SmoothingNormalsAngle))
{
errorMsg = TEXT("Failed to generate normals.");
return true;
}
}
else if (aMesh->mNormals)
{
mesh.Normals.Set((const Float3*)aMesh->mNormals, aMesh->mNumVertices);
}
// Tangents
if (aMesh->mTangents)
{
mesh.Tangents.Set((const Float3*)aMesh->mTangents, aMesh->mNumVertices);
}
// Lightmap UVs
if (data.Options.LightmapUVsSource == ModelLightmapUVsSource::Disable)
{