So recently I've been working on implementing PCSS for soft shadow rendering, and I noted some performance issues when it came to trees. Ultimately I ended up disabling soft shadows for transparent models, but it's still apparent that trees present performance issues regardless of whether they receive soft shadows or not. After tinkering around with the drawing process to see if I couldn't fix it, it became clear that the reason was that virtually all of the trees in 0ad use highly transluc