const Vertex tank_radar_v[] = {
  {    0,0,0}, // Vertex indices in .OBJ files are based at 1.
  {    4 /*  0.276578 */,     1 /*  0.035632 */,     1 /*  0.031347 */},
  {    4 /*  0.276578 */,    -1 /* -0.042264 */,     1 /*  0.031316 */},
  {   -4 /* -0.276578 */,     1 /*  0.042231 */,     1 /*  0.031348 */},
  {   -4 /* -0.276578 */,    -1 /* -0.035665 */,     1 /*  0.031317 */},
  {    2 /*  0.150008 */,     1 /*  0.093364 */,    -1 /* -0.031348 */},
  {    2 /*  0.150008 */,    -1 /* -0.093364 */,    -1 /* -0.031348 */},
  {   -2 /* -0.150008 */,    -1 /* -0.093364 */,    -1 /* -0.031348 */},
  {   -2 /* -0.150008 */,     1 /*  0.093364 */,    -1 /* -0.031348 */},
  { -128,-128,-128}, /* End of list marker */
};
const Edge tank_radar_e[] = {
  {    1,    2 },
  {    1,    5 },
  {    2,    6 },
  {    3,    4 },
  {    3,    8 },
  {    4,    7 },
  {    5,    6 },
  {    5,    8 },
  {    6,    7 },
  {    7,    8 },
  {    0,    0 }  /* End of list. (Index 0 is never used) */
};