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Started using texture atlas instead of many small meshes.

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This commit is contained in:
David Williams
2007-12-03 22:24:48 +00:00
parent ee060d85d3
commit 31656cb68b
11 changed files with 317 additions and 43 deletions
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57
source/IndexedSurfacePatch.cpp
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@ -4,6 +4,7 @@ namespace Ogre
{
IndexedSurfacePatch::IndexedSurfacePatch()
{
memset(vertexIndices,0xFF,sizeof(vertexIndices)); //0xFF is -1 as two's complement - this may not be portable...
}
IndexedSurfacePatch::~IndexedSurfacePatch()
@ -12,24 +13,60 @@ namespace Ogre
void IndexedSurfacePatch::addTriangle(const SurfaceVertex& v0,const SurfaceVertex& v1,const SurfaceVertex& v2)
{
SurfaceVertexIterator v0Iter = m_listVertices.insert(v0).first;
SurfaceVertexIterator v1Iter = m_listVertices.insert(v1).first;
SurfaceVertexIterator v2Iter = m_listVertices.insert(v2).first;
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)];
if(index == -1)
{
m_vecVertices.push_back(v0);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
}
else
{
m_vecTriangleIndices.push_back(index);
}
m_vecTriangleIndices.push_back(v0Iter);
m_vecTriangleIndices.push_back(v1Iter);
m_vecTriangleIndices.push_back(v2Iter);
index = vertexIndices[long int(v1.getPosition().x +0.5)][long int(v1.getPosition().y +0.5)][long int(v1.getPosition().z +0.5)];
if(index == -1)
{
m_vecVertices.push_back(v1);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
}
else
{
m_vecTriangleIndices.push_back(index);
}
index = vertexIndices[long int(v2.getPosition().x +0.5)][long int(v2.getPosition().y +0.5)][long int(v2.getPosition().z +0.5)];
if(index == -1)
{
m_vecVertices.push_back(v2);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
}
else
{
m_vecTriangleIndices.push_back(index);
}
/*m_vecVertices.push_back(v0);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
m_vecVertices.push_back(v1);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);
m_vecVertices.push_back(v2);
m_vecTriangleIndices.push_back(m_vecVertices.size()-1);*/
}
void IndexedSurfacePatch::fillVertexAndIndexData(std::vector<SurfaceVertex>& vecVertices, std::vector<ushort>& vecIndices)
{
vecVertices.resize(m_listVertices.size());
std::copy(m_listVertices.begin(), m_listVertices.end(), vecVertices.begin());
vecVertices.resize(m_vecVertices.size());
std::copy(m_vecVertices.begin(), m_vecVertices.end(), vecVertices.begin());
for(std::vector<SurfaceVertexIterator>::iterator iterVertices = m_vecTriangleIndices.begin(); iterVertices != m_vecTriangleIndices.end(); ++iterVertices)
vecIndices.resize(m_vecTriangleIndices.size());
std::copy(m_vecTriangleIndices.begin(), m_vecTriangleIndices.end(), vecIndices.begin());
/*for(std::vector<SurfaceVertexIterator>::iterator iterVertices = m_vecTriangleIndices.begin(); iterVertices != m_vecTriangleIndices.end(); ++iterVertices)
{
std::vector<SurfaceVertex>::iterator iterVertex = lower_bound(vecVertices.begin(), vecVertices.end(), **iterVertices);
vecIndices.push_back(iterVertex - vecVertices.begin());
}
}*/
}
}