o convex_0 v 0.840804 -1.192095 1.010101 v -1.179398 -3.212099 -1.010101 v -1.179398 -3.212099 1.010101 v -1.179398 -1.192095 -1.010101 v 0.840804 -3.212099 -1.010101 v -1.179398 -1.192095 1.010101 v 0.840804 -3.212099 1.010101 v 0.840804 -1.192095 -1.010101 f 5 4 8 f 2 3 4 f 3 2 5 f 2 4 5 f 3 1 6 f 4 3 6 f 1 4 6 f 1 3 7 f 5 1 7 f 3 5 7 f 4 1 8 f 1 5 8