Batch::Batch( const geom::Source &source, const gl::GlslProgRef &glsl, const AttributeMapping &attributeMapping )
: mGlsl( glsl )
{
geom::AttribSet attribs;
// include all the attributes in the custom attributeMapping
for( const auto &attrib : attributeMapping ) {
if( source.getAttribDims( attrib.first ) )
attribs.insert( attrib.first );
}
// and then the attributes references by the GLSL
for( const auto &attrib : glsl->getActiveAttributes() ) {
if( source.getAttribDims( attrib.getSemantic() ) )
attribs.insert( attrib.getSemantic() );
}
mVboMesh = gl::VboMesh::create( source, attribs );
initVao( attributeMapping );
}
