Function RenderRoom

Descent3/render.cpp:2955–3003

Renders a specific room. If pos_offset is not NULL, adds that offset to each of the rooms vertices

// Renders a specific room.  If pos_offset is not NULL, adds that offset to each of the
// rooms vertices
void RenderRoom(room *rp) {
  Num_glows_this_frame = 0;

  // Set up rendering states
  rend_SetColorModel(CM_MONO);
  rend_SetLighting(LS_GOURAUD);
  rend_SetWrapType(WT_WRAP);
  if (rp->used == 0) {
    Int3(); // Trying to draw a room that isn't in use!
    return;
  }

  // Figure out pulse lighting for room
  ComputeRoomPulseLight(rp);

  // Mark it visible for automap
  AutomapVisMap[rp - Rooms] = 1;

#ifdef EDITOR
  if (!UseHardware) {
    RenderRoomSorted(rp);
  } else
#endif
  {
    // NOTE LINK TO ABOVE ELSE
    RenderRoomUnsorted(rp);
  }

  rp->last_render_time = Gametime;
  rp->flags &= ~RF_MIRROR_VISIBLE;

  CheckLightGlowsForRoom(rp);

  if (Num_scorches_to_render > 0) {
    RenderScorchesForRoom(rp);
    Num_scorches_to_render = 0;
  }

  if (Num_specular_faces_to_render > 0) {
    RenderSpecularFacesFlat(rp);
    Num_specular_faces_to_render = 0;
    Num_real_specular_faces_to_render = 0;
  }

  if (Num_fog_faces_to_render > 0) {
    RenderFogFaces(rp);
    Num_fog_faces_to_render = 0;
  }
}

#define MAX_OBJECTS_PER_ROOM 2000
struct obj_sort_item {