> The rest of the options are in the pixel shaders. I think most drivers will be using > the CRT-geom_rgb32_dir.fsh so try changing that file first.
In current SVN and the upcoming 0.154, all drivers should use rgb32_dir.fsh. That's part of my simplification of the OpenGL renderer.
There will also be a GL 3.2 profile renderer path probably later this year/early next, around the same time we switch over to SDL 2 by default. That of course allows longer/more complex shaders.