int AttributeIndex<GDVAT_TEXCOORDS_0>(MItMeshPolygon &polyIt, unsigned int polyVertNum, const char* pAttributeName)
{
MStatus result;
int index;
result = polyIt.getUVIndex(polyVertNum, index, &MString(pAttributeName));
if( result == MS::kFailure )
return -1;
return index;
}
// --------------------------------------------------------
void GeometryPolygonExporter::writeVertexIndices (
COLLADASW::PrimitivesBase* primitivesBasePoly,
PolygonSource *polygon,
const int vertexIndex,
const MIntArray &normalIndices,
const int iteratorVertexIndex,
MItMeshPolygon &meshPolygonsIter,
MFnMesh &fnMesh,
const int polyIndex )
{
// Dump the indices
size_t numAttributes = polygon->getVertexAttributes().size();
// Output each vertex attribute we need
for ( size_t kk=0; kk<numAttributes; ++kk )
{
const SourceInput& vertexAttributes = polygon->getVertexAttributes()[kk];
COLLADASW::InputSemantic::Semantics type = vertexAttributes.getType();
switch ( vertexAttributes.getType() )
{
case COLLADASW::InputSemantic::VERTEX:
case COLLADASW::InputSemantic::POSITION:
primitivesBasePoly->appendValues ( vertexIndex );
break;
case COLLADASW::InputSemantic::NORMAL:
case COLLADASW::InputSemantic::TANGENT:
case COLLADASW::InputSemantic::BINORMAL:
{
if (mHasFaceVertexNormals)
{
// The tangent and the binormal can use the index of the normal
int currentVertexIndex = normalIndices [iteratorVertexIndex];
primitivesBasePoly->appendValues ( currentVertexIndex );
}
else
{
// Assert, if we don't have initialized the normal indices,
// but want to read them out here!
MGlobal::displayError("No face vertex normals to proceed!");
COLLADABU_ASSERT ( mHasFaceVertexNormals );
return;
}
}
break;
case COLLADASW::InputSemantic::TEXTANGENT:
case COLLADASW::InputSemantic::TEXBINORMAL:
{
// The texture binormal can use the index of the texture tangent.
unsigned int texTangentIndex2 = meshPolygonsIter.tangentIndex ( iteratorVertexIndex );
primitivesBasePoly->appendValues ( texTangentIndex2 );
}
break;
case COLLADASW::InputSemantic::TEXCOORD:
{
int uvIndex = 0;
int idx = vertexAttributes.getIdx();
meshPolygonsIter.getUVIndex ( iteratorVertexIndex, uvIndex, &mUvSetNames[idx] );
primitivesBasePoly->appendValues ( uvIndex );
}
break;
case COLLADASW::InputSemantic::COLOR:
{
MString& colorSetName = mColorSetNames[vertexAttributes.getIdx()];
int colorIndex = 0;
{
#if MAYA_API_VERSION >= 700
fnMesh.getColorIndex ( polyIndex, iteratorVertexIndex, colorIndex, &colorSetName );
#else
fnMesh.getFaceVertexColorIndex ( polyIndex, iteratorVertexIndex, colorIndex );
#endif
}
primitivesBasePoly->appendValues ( colorIndex );
}
break;
case COLLADASW::InputSemantic::UNKNOWN:
case COLLADASW::InputSemantic::UV:
// case COLLADASW::EXTRA:
default:
break; // Not exported/supported
}
}
}
