// ***************************************************************************
void CShapeInfo::build(const CMeshBase &meshBase, const CMeshGeom &meshGeom)
{
// Get the vertex buffer
const CVertexBuffer &vb=meshGeom.getVertexBuffer();
CVertexBufferRead vba;
vb.lock (vba);
// For each matrix block
uint numBlock=meshGeom.getNbMatrixBlock();
for (uint block=0; block<numBlock; block++)
{
// For each render pass
uint numRenderPass=meshGeom.getNbRdrPass(block);
for (uint pass=0; pass<numRenderPass; pass++)
{
// Get the material
const CMaterial &material = meshBase.getMaterial (meshGeom.getRdrPassMaterial ( block, pass));
if (material.getBlend()) continue; // don't test against transparent materials
//if (material.getAlphaTest()) continue; // don't test against transparent materials
// Get the primitive block
const CIndexBuffer &primitive=meshGeom.getRdrPassPrimitiveBlock ( block, pass);
// Copy triangles
CIndexBufferRead iba;
primitive.lock (iba);
if (iba.getFormat() == CIndexBuffer::Indices32)
{
const uint32* triIndex= (const uint32*) iba.getPtr ();
uint numTri=primitive.getNumIndexes ()/3;
uint tri;
for (tri=0; tri<numTri; tri++)
{
// Vertex
CVector v0= *vba.getVertexCoordPointer (triIndex[tri*3]);
CVector v1= *vba.getVertexCoordPointer (triIndex[tri*3+1]);
CVector v2= *vba.getVertexCoordPointer (triIndex[tri*3+2]);
Tris.push_back(NLMISC::CTriangle (v0, v1, v2));
}
}
else
{
const uint16* triIndex= (const uint16*) iba.getPtr ();
uint numTri=primitive.getNumIndexes ()/3;
uint tri;
for (tri=0; tri<numTri; tri++)
{
// Vertex
CVector v0= *vba.getVertexCoordPointer (triIndex[tri*3]);
CVector v1= *vba.getVertexCoordPointer (triIndex[tri*3+1]);
CVector v2= *vba.getVertexCoordPointer (triIndex[tri*3+2]);
Tris.push_back(NLMISC::CTriangle (v0, v1, v2));
}
}
}
}
}
// Flag all vertices linked to face with material m
// ---------------------------------------------------------------------------
void FlagVertices (CMeshGeom &mg, uint InMatID, vector<bool> &verticesNeedRemap)
{
CVertexBuffer &vertexBuffer = const_cast<CVertexBuffer&>(mg.getVertexBuffer());
// For each matrix block
uint matrixBlock;
uint nbMatrixBlock=mg.getNbMatrixBlock();
for (matrixBlock=0; matrixBlock<nbMatrixBlock; matrixBlock++)
{
// For each render pass
uint renderPass;
uint numRenderPass=mg.getNbRdrPass(matrixBlock);
for (renderPass=0; renderPass<numRenderPass; renderPass++)
{
// Render pass material
uint32 matId=mg.getRdrPassMaterial(matrixBlock, renderPass);
if (matId == InMatID) // Same Material -> Flag all vertices of this pass
{
// Get primitives
const CIndexBuffer &primitiveBlock=mg.getRdrPassPrimitiveBlock(matrixBlock,renderPass);
CIndexBufferRead iba;
primitiveBlock.lock (iba);
// Set of vertex to remap
std::set<uint> vertexToRemap;
// Remap triangles
uint index;
if (iba.getFormat() == CIndexBuffer::Indices32)
{
const uint32 *indexPtr=(const uint32 *)iba.getPtr();
uint32 numIndex=primitiveBlock.getNumIndexes();
for (index=0; index<numIndex; index++)
vertexToRemap.insert (indexPtr[index]);
}
else
{
const uint16 *indexPtr=(const uint16 *)iba.getPtr();
uint32 numIndex=primitiveBlock.getNumIndexes();
for (index=0; index<numIndex; index++)
vertexToRemap.insert (indexPtr[index]);
}
// Remap the vertex
std::set<uint>::iterator iteRemap=vertexToRemap.begin();
while (iteRemap!=vertexToRemap.end())
{
// Remap the vertex
verticesNeedRemap[*iteRemap] = true;
// Next vertex
iteRemap++;
}
}
}
}
}
