Stacked sectors are far more stable in GZDoom than in ZDoom. The hardware renderer isn't bothered by the clipping issues and as a result there's far less HOM (although it's still easy to create some.)
Floor mirrors too? Also while we're here, would a new mirror system be possible in GL mode? It's a bit of a pain with having to have a empty space behind each line.
Cutmanmike wrote:It's a bit of a pain with having to have a empty space behind each line.
Yeah, there have been plenty of times I've wanted to place a mirror somewhere but without rearranging the level I can't get enough space behind the line to allow it.
GZDoom's mirrors are more stable than ZDoom's because I am performing one additional clipping step that discards all geometry behind the mirror. That means that in many (not all!) cases you don't need any empty space - although having it is still preferred.
Getting rid of this limitation completely isn't really possible. There are some restrictions imposed by the way a level is handled that can't simply be ignored.
But you have to be careful. For each plane the entire visible geometry has to be rendered again. If you build some long stairs that can easily create slowdowns.