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Work on MeshDecimator.

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This commit is contained in:
David Williams
2011-01-03 21:46:40 +00:00
parent 996dfac39c
commit 773cfc4887
7 changed files with 223 additions and 335 deletions
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19
library/PolyVoxCore/include/MeshDecimator.h
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@ -30,15 +30,9 @@ namespace PolyVox
{
struct InitialVertexMetadata
{
list<uint32_t> trianglesUsingVertex;
Vector3DFloat normal;
bool isOnRegionEdge;
bool isOnMaterialEdge;
};
struct CurrentVertexMetadata
{
list<uint32_t> trianglesUsingVertex;
std::bitset<VF_NO_OF_FLAGS> vertexFlags;
};
struct Triangle
@ -60,16 +54,14 @@ namespace PolyVox
private:
void fillInitialVertexMetadata(std::vector<InitialVertexMetadata>& vecInitialVertexMetadata);
void fillCurrentVertexMetadata(std::vector<CurrentVertexMetadata>& vecCurrentVertexMetadata);
void buildTriangles(void);
void buildConnectivityData(void);
bool attemptEdgeCollapse(uint32_t uSrc, uint32_t uDest);
SurfaceMesh<VertexType>* m_pInputMesh;
//SurfaceMesh<PositionMaterial>* pMeshOutput;
void countNoOfNeighboursUsingMaterial(void);
uint32_t performDecimationPass(float fMinDotProductForCollapse);
bool isSubset(std::bitset<VF_NO_OF_FLAGS> a, std::bitset<VF_NO_OF_FLAGS> b);
@ -80,19 +72,14 @@ namespace PolyVox
bool collapseChangesFaceNormals(uint32_t uSrc, uint32_t uDst, float fThreshold);
//Data structures used during decimation
std::vector<uint8_t> m_vecNoOfNeighboursUsingMaterial;
std::vector<bool> vertexLocked;
std::vector<uint32_t> vertexMapper;
//vector< list<uint32_t> > trianglesUsingVertexCurrently;
std::vector<int> vecOfTriCts;
std::vector<Vector3DFloat> vecOfTriNormals;
std::vector<Triangle> m_vecTriangles;
std::vector< list<uint32_t> > trianglesUsingVertex;
std::vector<InitialVertexMetadata> m_vecInitialVertexMetadata;
std::vector<CurrentVertexMetadata> m_vecCurrentVertexMetadata;
float fMinDotProductForCollapse;
};