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Work on improving material system.

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This commit is contained in:
David Williams
2009-06-27 19:11:33 +00:00
parent 9d1f9e7959
commit e51b9cfee9
2 changed files with 37 additions and 1 deletions
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34
library/PolyVoxCore/source/IndexedSurfacePatch.cpp
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@ -218,4 +218,38 @@ namespace PolyVox
}
}
}
POLYVOX_SHARED_PTR<IndexedSurfacePatch> IndexedSurfacePatch::extractSubset(std::set<uint8_t> setMaterials)
{
POLYVOX_SHARED_PTR<IndexedSurfacePatch> result(new IndexedSurfacePatch);
if(m_vecVertices.size() == 0) //FIXME - I don't think we should need this test, but I have seen crashes otherwise...
{
return result;
}
for(vector<uint32_t>::iterator iterIndex = m_vecTriangleIndices.begin(); iterIndex != m_vecTriangleIndices.end();)
{
SurfaceVertex& v0 = m_vecVertices[*iterIndex];
iterIndex++;
SurfaceVertex& v1 = m_vecVertices[*iterIndex];
iterIndex++;
SurfaceVertex& v2 = m_vecVertices[*iterIndex];
iterIndex++;
if(
(setMaterials.find(v0.getMaterial()) != setMaterials.end()) ||
(setMaterials.find(v1.getMaterial()) != setMaterials.end()) ||
(setMaterials.find(v2.getMaterial()) != setMaterials.end()))
{
uint32_t i0 = result->addVertex(v0);
uint32_t i1 = result->addVertex(v1);
uint32_t i2 = result->addVertex(v2);
result->addTriangle(i0,i1,i2);
}
}
return result;
}
}