ref: b4f6e218fccb523c9449a94b30cd6b2fa876a361
dir: /examples/diamond.obj/
# diamond.obj g Object001 v 0.000000E+00 0.000000E+00 78.0000 v 45.0000 45.0000 0.000000E+00 v 45.0000 -45.0000 0.000000E+00 v -45.0000 -45.0000 0.000000E+00 v -45.0000 45.0000 0.000000E+00 v 0.000000E+00 0.000000E+00 -78.0000 f 1 2 3 f 1 3 4 f 1 4 5 f 1 5 2 f 6 5 4 f 6 4 3 f 6 3 2 f 6 2 1 f 6 1 5