// ---------------------------------------------
void GeometryPolygonExporter::getPolygonInputAttributes ( COLLADASW::InputList &inputList )
{
// Generate the polygon set inputs.
int nextIdx = 1, normalsIdx = -1;
int offset = 0; // Offset for the input list
size_t inputCount = mPolygonSources->size();
for ( size_t p = 0; p < inputCount; ++p )
{
const SourceInput param = ( *mPolygonSources ) [p];
const COLLADASW::SourceBase source = param.getSource();
const COLLADASW::InputSemantic::Semantics type = param.getType();
// Check if the vertex is already registered
bool isVertexSource = SourceInput::containsSourceBase ( mVertexSources, &source );
// Add the per-face, per-vertex input to the polygons description
if ( !isVertexSource )
{
// Get the generated id of the source for reference
String sourceId = source.getId();
// The vertex sources must reference to the vertexes element
if ( type == COLLADASW::InputSemantic::VERTEX )
{
String suffix = getSuffixBySemantic ( type );
sourceId = mMeshId + suffix;
}
if ( type == COLLADASW::InputSemantic::TEXCOORD )
{
// For texture coordinate-related inputs: set the 'set' attribute.
if ( param.getIdx () >= 0 )
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset++, param.getIdx() ) );
else
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset++ ) );
}
else if ( type == COLLADASW::InputSemantic::TANGENT || type == COLLADASW::InputSemantic::BINORMAL || type == COLLADASW::InputSemantic::TEXBINORMAL )
{
// Tangents and binormals can use the same index than the normals.
// Texture binormals can use the index list of texture tangents.
if ( param.getIdx () >= 0 )
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset-1, param.getIdx() ) );
else
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset-1 ) );
}
else
{
if ( param.getIdx () >= 0 )
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset++, param.getIdx () ) );
else
inputList.push_back ( COLLADASW::Input ( type, COLLADASW::URI ( EMPTY_STRING, sourceId ), offset++ ) );
}
}
}
}
std::string GeometryExporter::getIdBySemantics(std::string geom_id, COLLADASW::InputSemantic::Semantics type, std::string other_suffix) {
return geom_id + getSuffixBySemantic(type) + other_suffix;
}