misc... * disabled depth write for qer_trans surfs and highlight (=any amount of layers is visible) * 20x faster light radii rendering * light radii are coloured and additive * anisotropic textures filtering option (def = yes)
git-svn-id: svn://svn.icculus.org/netradiant/trunk@1 61c419a2-8eb2-4b30-bcec-8cead039b335