--- /dev/null
+# 1 -body material\r
+# 2 = 1 -ends filled\r
+\r
+here\r
+p -0.5 0 0.866\r
+p 0.5 0 0.866\r
+p 1 0 0\r
+p 0.5 0 -0.866\r
+p -0.5 0 -0.866\r
+p -1 0 0\r
+\r
+p -0.5 1 0.866\r
+p 0.5 1 0.866\r
+p 1 1 0\r
+p 0.5 1 -0.866\r
+p -0.5 1 -0.866\r
+p -1 1 0\r
+\r
+mtl %1\r
+f 0 1 7 6\r
+f 1 2 8 7\r
+f 2 3 9 8\r
+f 3 4 10 9\r
+f 4 5 11 10\r
+f 5 0 6 11\r
+\r
+cmp 0 %2 1\r
+?0 f 0 1 2 3\r
+?0 f 3 4 5 0\r
+?0 f 6 7 8 9\r
+?0 f 9 10 11 6\r
+\r
+\r