Message from 2021
This post is pretty old! Opinions and technical information in it are almost certainly oudated. Commands and configurations will probably not work. Consider the age of the content before putting any of it into practice.
I was still in the shader-wranglin’ mood this morning:
This one has a size paramter you can adjust, a size of 120 runs all right on my iBook, maybe you can kick it up higher if you have an ICBM or something.