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Work on IndexedSurfacePatch

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This commit is contained in:
David Williams
2008-07-05 22:11:09 +00:00
parent 75d1136d96
commit 0d3a215637
8 changed files with 93 additions and 443 deletions
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19
library/source/PolyVoxCore/PolyVoxImpl/FastSurfaceExtractor.cpp
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@ -31,8 +31,7 @@ namespace PolyVox
void extractFastSurfaceImpl(BlockVolume<uint8>* volumeData, Region region, IndexedSurfacePatch* singleMaterialPatch)
{
singleMaterialPatch->m_vecVertices.clear();
singleMaterialPatch->m_vecTriangleIndices.clear();
singleMaterialPatch->clear();
//For edge indices
int32* vertexIndicesX0 = new int32[(POLYVOX_REGION_SIDE_LENGTH+1) * (POLYVOX_REGION_SIDE_LENGTH+1)];
@ -411,8 +410,8 @@ namespace PolyVox
const Vector3DFloat v3dNormal(v000 > v100 ? 1.0f : -1.0f, 0.0f, 0.0f);
const uint8 uMaterial = v000 | v100; //Because one of these is 0, the or operation takes the max.
const SurfaceVertex surfaceVertex(v3dPosition, v3dNormal, uMaterial);
singleMaterialPatch->m_vecVertices.push_back(surfaceVertex);
vertexIndicesX[getIndex(x,y)] = singleMaterialPatch->m_vecVertices.size()-1;
uint32 uLastVertexIndex = singleMaterialPatch->addVertex(surfaceVertex);
vertexIndicesX[getIndex(x,y)] = uLastVertexIndex;
}
}
if (edgeTable[iCubeIndex] & 8)
@ -424,8 +423,8 @@ namespace PolyVox
const Vector3DFloat v3dNormal(0.0f, v000 > v010 ? 1.0f : -1.0f, 0.0f);
const uint8 uMaterial = v000 | v010;
SurfaceVertex surfaceVertex(v3dPosition, v3dNormal, uMaterial);
singleMaterialPatch->m_vecVertices.push_back(surfaceVertex);
vertexIndicesY[getIndex(x,y)] = singleMaterialPatch->m_vecVertices.size()-1;
uint32 uLastVertexIndex = singleMaterialPatch->addVertex(surfaceVertex);
vertexIndicesY[getIndex(x,y)] = uLastVertexIndex;
}
}
if (edgeTable[iCubeIndex] & 256)
@ -437,8 +436,8 @@ namespace PolyVox
const Vector3DFloat v3dNormal(0.0f, 0.0f, v000 > v001 ? 1.0f : -1.0f);
const uint8 uMaterial = v000 | v001;
SurfaceVertex surfaceVertex(v3dPosition, v3dNormal, uMaterial);
singleMaterialPatch->m_vecVertices.push_back(surfaceVertex);
vertexIndicesZ[getIndex(x,y)] = singleMaterialPatch->m_vecVertices.size()-1;
uint32 uLastVertexIndex = singleMaterialPatch->addVertex(surfaceVertex);
vertexIndicesZ[getIndex(x,y)] = uLastVertexIndex;
}
}
}while(volIter.moveForwardInRegionXYZ());//For each cell
@ -537,9 +536,7 @@ namespace PolyVox
uint32 ind1 = indlist[triTable[iCubeIndex][i+1]];
uint32 ind2 = indlist[triTable[iCubeIndex][i+2]];
singleMaterialPatch->m_vecTriangleIndices.push_back(ind0);
singleMaterialPatch->m_vecTriangleIndices.push_back(ind1);
singleMaterialPatch->m_vecTriangleIndices.push_back(ind2);
singleMaterialPatch->addTriangle(ind0, ind1, ind2);
}//For each triangle
}while(volIter.moveForwardInRegionXYZ());//For each cell
}