if (m.faceMats() > 0){
//List face Materials //TODO USE LOGGERS!!
logger.debug(" Num Face-Materials: " + m.faceMats() );
for( int n = 0; n < m.faceMats(); n++ ){
FaceMat3ds fmat = m.faceMat( n );
logger.debug(" FaceMat ID: " + fmat.matIndex() );
logger.debug(" FaceMat indices: " + fmat.faceIndexes());
int[] faceIndicesForMaterial = fmat.faceIndex();
if (faceIndicesForMaterial.length <= 0){