Cube  Diff

								// crap hack,
								// needed for
								// rendering
								// large mips
								// next to hfs
								fh -=
								    o[i]->vdelta /
								        4 +
								    4 + 2;
								    2;
							if (o[i]->type == CHF)
								// FIXME: needs
								// to somehow
								// take into
								// account
								// middle
								// vertices on
								// higher mips
								ch +=
								    o[i]->vdelta /
								        4 +
								    4 + 2;
								    2;
						}
						if (fh < floor)
							// take lowest floor and
							// highest ceil, so we
							// never have to see
							// missing lower/upper
							// from the side

					// exactly equal
					if (o[i]->type != o[3]->type ||
					    o[i]->floor != o[3]->floor ||
					    o[i]->ceil != o[3]->ceil ||
					    o[i]->ftex != o[3]->ftex ||
					    o[i]->ctex != o[3]->ctex ||
					    abs(o[i + 1]->r - o[0]->r) >
					        lighterr ||
					    lighterr ||
					    abs(o[i + 1]->g - o[0]->g) >
					        lighterr ||
					    lighterr ||
					    abs(o[i + 1]->b - o[0]->b) >
					        lighterr ||
					    lighterr ||
					    o[i]->utex != o[3]->utex ||
					    o[i]->wtex != o[3]->wtex)
						goto c;
				}

				// can make a perfect mip out of a hf if slopes
				// lie on one line
				if (r->type == CHF || r->type == FHF) {
					if (o[0]->vdelta - o[1]->vdelta !=
					        o[1]->vdelta -
					            SWS(w, x + 2, y, ws)
					    o[1]->vdelta -
					    SWS(w, x + 2, y, ws)->vdelta ||
					                ->vdelta ||
					    o[0]->vdelta - o[2]->vdelta !=
					        o[2]->vdelta -
					            SWS(w, x + 2, y + 2, ws)
					    o[2]->vdelta -
					    SWS(w, x + 2, y + 2, ws)->vdelta ||
					                ->vdelta ||
					    o[0]->vdelta - o[3]->vdelta !=
					        o[3]->vdelta -
					            SWS(w, x, y + 2, ws)
					    o[3]->vdelta -
					    SWS(w, x, y + 2, ws)->vdelta ||
					                ->vdelta ||
					    o[3]->vdelta - o[2]->vdelta !=
					        o[2]->vdelta -
					            SWS(w, x + 2, y + 1, ws)
					    o[2]->vdelta -
					    SWS(w, x + 2, y + 1, ws)->vdelta ||
					                ->vdelta ||
					    o[1]->vdelta - o[2]->vdelta !=
					        o[2]->vdelta -
					            SWS(w, x + 1, y + 2, ws)
					    o[2]->vdelta -
					    SWS(w, x + 1, y + 2, ws)->vdelta)
					                ->vdelta)
						goto c;
				}
			}
			{
				// if any of the constituents is not perfect,
				// then this one isn't either
				for (int i = 0; i < 4; i++)