Function DrawPostrenderFace

Descent3/postrender.cpp:184–230

Rotates a face, and then renders it

// Rotates a face, and then renders it
void DrawPostrenderFace(int roomnum, int facenum, bool change_z) {
  int i;

  // Always draw as non state limited
  bool save_state = StateLimited;
  StateLimited = false;

  ASSERT(roomnum >= 0 && roomnum < (MAX_ROOMS + MAX_PALETTE_ROOMS));
  ASSERT(Rooms[roomnum].used);

  room *rp = &Rooms[roomnum];

  ASSERT(facenum >= 0 && facenum < rp->num_faces);

  face *fp = &rp->faces[facenum];

  // Rotate points
  rp->wpb_index = 0;
  for (i = 0; i < fp->num_verts; i++) {
    g3_RotatePoint(&World_point_buffer[fp->face_verts[i]], &rp->verts[fp->face_verts[i]]);
    g3_ProjectPoint(&World_point_buffer[fp->face_verts[i]]);
  }

  SetupPostrenderRoom(rp);

  // Render!
  if (change_z)
    rend_SetZBufferWriteMask(0);
  RenderFace(rp, facenum);

  // Render any effects for this face
  if (Num_specular_faces_to_render > 0) {
    RenderSpecularFacesFlat(rp);
    Num_specular_faces_to_render = 0;
  }

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

  // Restore statelimited setting
  StateLimited = save_state;

  if (change_z)
    rend_SetZBufferWriteMask(1);
}

// Renders all the objects/viseffects/walls we have in our postrender list
void PostRender(int roomnum) {