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Don't emit OBJ vertex normal if absent (e.g --weld-vertices)

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This commit is contained in:
Thomas Krijnen
2016-05-24 15:01:34 +02:00
parent 38d1ec7a78
commit 9909e2f7e2
1 changed files with 13 additions and 3 deletions
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src/ifcconvert/WavefrontObjSerializer.cpp
+13 -3
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@@ -109,6 +109,7 @@ void WaveFrontOBJSerializer::write(const IfcGeom::TriangulationElement<real_t>*
std::vector<int>::const_iterator material_it = mesh.material_ids().begin(); std::vector<int>::const_iterator material_it = mesh.material_ids().begin();
const bool has_uvs = !mesh.uvs().empty(); const bool has_uvs = !mesh.uvs().empty();
const bool has_normals = !mesh.normals().empty();
for ( std::vector<int>::const_iterator it = mesh.faces().begin(); it != mesh.faces().end(); ) { for ( std::vector<int>::const_iterator it = mesh.faces().begin(); it != mesh.faces().end(); ) {
const int material_id = *(material_it++); const int material_id = *(material_it++);
@@ -128,9 +129,18 @@ void WaveFrontOBJSerializer::write(const IfcGeom::TriangulationElement<real_t>*
const int v1 = *(it++)+vcount_total; const int v1 = *(it++)+vcount_total;
const int v2 = *(it++)+vcount_total; const int v2 = *(it++)+vcount_total;
const int v3 = *(it++)+vcount_total; const int v3 = *(it++)+vcount_total;
obj_stream << "f " << v1 << "/" << (has_uvs ? boost::lexical_cast<std::string>(v1) : "") << "/" << v1 << " "
<< v2 << "/" << (has_uvs ? boost::lexical_cast<std::string>(v2) : "") << "/" << v2 << " " if (has_normals && has_uvs) {
<< v3 << "/" << (has_uvs ? boost::lexical_cast<std::string>(v3) : "") << "/" << v3 << "\n"; obj_stream << "f " << v1 << "/" << v1 << "/" << v1 << " "
<< v2 << "/" << v2 << "/" << v2 << " "
<< v3 << "/" << v3 << "/" << v3 << "\n";
} else if (has_normals) {
obj_stream << "f " << v1 << "//" << v1 << " "
<< v2 << "//" << v2 << " "
<< v3 << "//" << v3 << "\n";
} else {
obj_stream << "f " << v1 << " " << v2 << " " << v3 << "\n";
}
} }