const Vertex obstruction_pyramid_v[] = {
  {    0,0,0}, // Vertex indices in .OBJ files are based at 1.
  {  -17 /* -1.052376 */,     0 /*  0.000000 */,    -9 /* -0.586560 */},
  {  -17 /* -1.052376 */,     0 /*  0.000000 */,    13 /*  0.827653 */},
  {    6 /*  0.361838 */,     0 /*  0.000000 */,    13 /*  0.827653 */},
  {    6 /*  0.361837 */,     0 /*  0.000000 */,    -9 /* -0.586560 */},
  {   -6 /* -0.345269 */,    29 /*  1.811907 */,     2 /*  0.120547 */},
  { -128,-128,-128}, /* End of list marker */
};
const Edge obstruction_pyramid_e[] = {
  {    1,    2 },
  {    1,    4 },
  {    1,    5 },
  {    2,    3 },
  {    2,    5 },
  {    3,    4 },
  {    3,    5 },
  {    4,    5 },
  {    0,    0 }  /* End of list. (Index 0 is never used) */
};