bool importMeshPrimitive(GU_Detail &gdp, const GLTF_Index mesh_idx, const GLTF_Index prim_idx, const GLTF_MeshInfo &mesh_info, GLTF_Reader &reader, GLTF_ErrorManager &errors) override
virtual bool importMaterial(GU_Detail &gdp, const GLTF_Index mat_idx, GLTF_Reader &reader, GLTF_ErrorManager &errors, GA_AttributeOwner mat_attribs_owner=GA_ATTRIB_PRIMITIVE)=0