It still is nice to see some simple working source though, especially for us that are newer to shaders. I have been playing around with it for most of the day trying to get it working here, I am feeling a bit deflated I suppose. I am such a nOOb, heh. I'll keep plugging along.
Loco
Professional A8.30 Spoils of War - East Coast Games
it will be slow if you have a lot of lights in one area.. try making the light range smaller and using fewer lights at one time.. when the next beta is relased i will do a new version that will hopefully run faster by lowering the number of passes and lights. Also, if you are using it on level geometry make sure it the blocks are set to "flat" instead of shaded, and "tesselate flat" should be set to "auto"..