Function ClearRoomLightmaps

Descent3/room.cpp:863–875

Clears lightmaps for a single room

// Clears lightmaps for a single room
void ClearRoomLightmaps(int roomnum) {
  int t;

  ASSERT(Rooms[roomnum].used);

  for (t = 0; t < Rooms[roomnum].num_faces; t++) {
    if (Rooms[roomnum].faces[t].lmi_handle != BAD_LMI_INDEX) {
      FreeLightmapInfo(Rooms[roomnum].faces[t].lmi_handle);
      Rooms[roomnum].faces[t].lmi_handle = BAD_LMI_INDEX;
      Rooms[roomnum].faces[t].flags &= ~FF_LIGHTMAP;
    }
  }
}

// Removes all room lightmaps from memory and sets indoor faces accordingly
// External=1 means to perform the operation on external rooms only, 0 means indoor rooms only