Function DrawShardObject

Descent3/renderobject.cpp:996–1042

Draw a shard

#endif
// Draw a shard
void DrawShardObject(object *obj) {
  shard_info_s *si = &obj->rtype.shard_info;
  bool flip = 0;
  g3Point rotated_points[3];
  g3Point *pointlist[3];
  uint8_t codes_and = 0xff;
  g3_StartInstanceMatrix(&obj->pos, &obj->orient);
  // Build list of points and UVLs for this face
  for (int i = 0; i < 3; i++) {
    uint8_t c;
    g3Point *p = &rotated_points[i];
    c = g3_RotatePoint(p, &si->points[i]);
    codes_and &= c;
    p->p3_uvl.u = si->u[i];
    p->p3_uvl.v = si->v[i];
    p->p3_uvl.a = 1.0;    // GameTextures[si->tmap].alpha;
    p->p3_flags |= PF_UV; // + PF_L;	// + PF_UV2 + PF_RGBA;	//has uv and l set
    p->p3_uvl.l = 1.0;
    pointlist[i] = &rotated_points[i];
  }
  // Check for backside
  if (!g3_CheckNormalFacing(&obj->pos, &si->normal)) {
    g3Point *t = pointlist[1];
    pointlist[1] = pointlist[2];
    pointlist[2] = t;
  }
  // Done with 3D
  g3_DoneInstance();
  // Check if face off screen
  if (codes_and)
    return;
  // Get bitmap handle
  int bm_handle = GetTextureBitmap(si->tmap, 0);
  ASSERT(bm_handle != -1);
  float alpha = GameTextures[si->tmap].alpha;
  alpha = 0.2 + alpha * 0.8; // Make less transparent
  // Set alpha, transparency, & lighting for this face
  rend_SetAlphaType(ATF_CONSTANT);
  rend_SetAlphaValue(alpha * 255);
  rend_SetLighting(LS_GOURAUD);
  rend_SetColorModel(CM_MONO);
  rend_SetOverlayType(OT_NONE);
  // Select texture type
  rend_SetTextureType(TT_LINEAR);
  // Draw the polygon
  g3_DrawPoly(3, pointlist, bm_handle);
}
// Sets up the light states for an outdoor object to be rendered
bool SetupTerrainObject(object *obj) {
  vector camlight = Terrain_sky.lightsource;