bool ToHoudiniPolygonsConverter::doConversion( const VisibleRenderable *renderable, GU_Detail *geo ) const
{
const MeshPrimitive *mesh = static_cast<const MeshPrimitive *>( renderable );
if ( !mesh )
{
return false;
}
GA_Range newPoints = appendPoints( geo, mesh->variableSize( PrimitiveVariable::Vertex ) );
if ( !newPoints.isValid() || newPoints.empty() )
{
return false;
}
GA_OffsetList pointOffsets;
pointOffsets.reserve( newPoints.getEntries() );
for ( GA_Iterator it=newPoints.begin(); !it.atEnd(); ++it )
{
pointOffsets.append( it.getOffset() );
}
const std::vector<int> &vertexIds = mesh->vertexIds()->readable();
const std::vector<int> &verticesPerFace = mesh->verticesPerFace()->readable();
GA_OffsetList offsets;
offsets.reserve( verticesPerFace.size() );
size_t vertCount = 0;
size_t numPrims = geo->getNumPrimitives();
for ( size_t f=0; f < verticesPerFace.size(); f++ )
{
GU_PrimPoly *poly = GU_PrimPoly::build( geo, 0, GU_POLY_CLOSED, 0 );
offsets.append( geo->primitiveOffset( numPrims + f ) );
for ( size_t v=0; v < (size_t)verticesPerFace[f]; v++ )
{
poly->appendVertex( pointOffsets.get( vertexIds[ vertCount + verticesPerFace[f] - 1 - v ] ) );
}
vertCount += verticesPerFace[f];
}
GA_Range newPrims( geo->getPrimitiveMap(), offsets );
transferAttribs( geo, newPoints, newPrims );
// add the interpolation type
if ( newPrims.isValid() )
{
std::string interpolation = ( mesh->interpolation() == "catmullClark" ) ? "subdiv" : "poly";
StringVectorDataPtr interpolationVectorData = new StringVectorData();
interpolationVectorData->writable().push_back( interpolation );
std::vector<int> indexValues( newPrims.getEntries(), 0 );
IntVectorDataPtr indexData = new IntVectorData( indexValues );
ToHoudiniStringVectorAttribConverterPtr converter = new ToHoudiniStringVectorAttribConverter( interpolationVectorData );
converter->indicesParameter()->setValidatedValue( indexData );
converter->convert( "ieMeshInterpolation", geo, newPrims );
}
return true;
}
bool ToHoudiniPolygonsConverter::doConversion( const VisibleRenderable *renderable, GU_Detail *geo ) const
{
const MeshPrimitive *mesh = static_cast<const MeshPrimitive *>( renderable );
if ( !mesh )
{
return false;
}
GA_Range newPoints = appendPoints( geo, mesh->variableSize( PrimitiveVariable::Vertex ) );
if ( !newPoints.isValid() || newPoints.empty() )
{
return false;
}
GA_OffsetList pointOffsets;
pointOffsets.reserve( newPoints.getEntries() );
for ( GA_Iterator it=newPoints.begin(); !it.atEnd(); ++it )
{
pointOffsets.append( it.getOffset() );
}
const std::vector<int> &vertexIds = mesh->vertexIds()->readable();
const std::vector<int> &verticesPerFace = mesh->verticesPerFace()->readable();
GA_OffsetList offsets;
offsets.reserve( verticesPerFace.size() );
size_t vertCount = 0;
size_t numPrims = geo->getNumPrimitives();
for ( size_t f=0; f < verticesPerFace.size(); f++ )
{
GU_PrimPoly *poly = GU_PrimPoly::build( geo, 0, GU_POLY_CLOSED, 0 );
offsets.append( geo->primitiveOffset( numPrims + f ) );
for ( size_t v=0; v < (size_t)verticesPerFace[f]; v++ )
{
poly->appendVertex( pointOffsets.get( vertexIds[ vertCount + verticesPerFace[f] - 1 - v ] ) );
}
vertCount += verticesPerFace[f];
}
GA_Range newPrims( geo->getPrimitiveMap(), offsets );
transferAttribs( geo, newPoints, newPrims );
return true;
}
