77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
#include "IndexedSurfacePatch.h"
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namespace Ogre
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{
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IndexedSurfacePatch::IndexedSurfacePatch(bool allowDuplicateVertices)
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:m_AllowDuplicateVertices(allowDuplicateVertices)
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{
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memset(vertexIndices,0xFF,sizeof(vertexIndices)); //0xFF is -1 as two's complement - this may not be portable...
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}
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IndexedSurfacePatch::~IndexedSurfacePatch()
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{
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}
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void IndexedSurfacePatch::addTriangle(const SurfaceVertex& v0,const SurfaceVertex& v1,const SurfaceVertex& v2)
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{
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if(!m_AllowDuplicateVertices)
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{
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long int index = vertexIndices[long int(v0.getPosition().x +0.5)][long int(v0.getPosition().y +0.5)][long int(v0.getPosition().z +0.5)];
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if(index == -1)
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{
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m_vecVertices.push_back(v0);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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}
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else
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{
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m_vecTriangleIndices.push_back(index);
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}
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index = vertexIndices[long int(v1.getPosition().x +0.5)][long int(v1.getPosition().y +0.5)][long int(v1.getPosition().z +0.5)];
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if(index == -1)
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{
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m_vecVertices.push_back(v1);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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}
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else
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{
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m_vecTriangleIndices.push_back(index);
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}
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index = vertexIndices[long int(v2.getPosition().x +0.5)][long int(v2.getPosition().y +0.5)][long int(v2.getPosition().z +0.5)];
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if(index == -1)
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{
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m_vecVertices.push_back(v2);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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}
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else
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{
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m_vecTriangleIndices.push_back(index);
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}
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}
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else
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{
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m_vecVertices.push_back(v0);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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m_vecVertices.push_back(v1);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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m_vecVertices.push_back(v2);
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m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
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}
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}
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void IndexedSurfacePatch::fillVertexAndIndexData(std::vector<SurfaceVertex>& vecVertices, std::vector<ushort>& vecIndices)
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{
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vecVertices.resize(m_vecVertices.size());
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std::copy(m_vecVertices.begin(), m_vecVertices.end(), vecVertices.begin());
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vecIndices.resize(m_vecTriangleIndices.size());
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std::copy(m_vecTriangleIndices.begin(), m_vecTriangleIndices.end(), vecIndices.begin());
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/*for(std::vector<SurfaceVertexIterator>::iterator iterVertices = m_vecTriangleIndices.begin(); iterVertices != m_vecTriangleIndices.end(); ++iterVertices)
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{
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std::vector<SurfaceVertex>::iterator iterVertex = lower_bound(vecVertices.begin(), vecVertices.end(), **iterVertices);
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vecIndices.push_back(iterVertex - vecVertices.begin());
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}*/
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}
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} |