ref: 37b243c4eace5777e584c7e9c9d3c0578439be49 dir: /mdl/basispt.obj/
mtllib basis.mtl v 0 0 0 v 1 0 0 v 0 1 0 v 0 0 1 p 1 usemtl x p 2 usemtl y p 3 usemtl z p 4