Function DrawWireframeSky

Descent3/terrainrender.cpp:1851–1887

Draws the sky textures

// Draws the sky textures
void DrawWireframeSky(void) {
  int t, k, tw, i;
  g3Point pnt[6];

  // Draw top part
  for (t = 0; t < MAX_HORIZON_PIECES; t++) {
    tw = (t + 1) % MAX_HORIZON_PIECES;
    pnt[0].p3_vec = Temp_sky_vectors[t][0];
    pnt[1].p3_vec = Temp_sky_vectors[tw][1];
    pnt[2].p3_vec = Temp_sky_vectors[t][1];

    for (k = 0; k < 3; k++) {
      g3_CodePoint(&pnt[k]);
      pnt[k].p3_flags = 0;
    }

    for (k = 0; k < 3; k++)
      g3_DrawLine(GR_RGB(255, 255, 255), &pnt[k], &pnt[(k + 1) % 3]);
  }
  // Draw bottom parts
  for (i = 1; i < 5; i++) {
    for (t = 0; t < MAX_HORIZON_PIECES; t++) {
      tw = (t + 1) % MAX_HORIZON_PIECES;
      pnt[0].p3_vec = Temp_sky_vectors[t][i];
      pnt[1].p3_vec = Temp_sky_vectors[tw][i];
      pnt[2].p3_vec = Temp_sky_vectors[tw][i + 1];
      pnt[3].p3_vec = Temp_sky_vectors[t][i + 1];
      for (k = 0; k < 4; k++) {
        g3_CodePoint(&pnt[k]);
        pnt[k].p3_flags = 0;
      }

      for (k = 0; k < 4; k++)
        g3_DrawLine(GR_RGB(255, 255, 255), &pnt[k], &pnt[(k + 1) % 4]);
    }
  }
}
// Draws the atmosphere over a satellite
void DrawAtmosphereBlend(vector *pos, angle rotAngle, float w, float h, int bm, float r, float g, float b) {
  g3Point pnt;