You can optimize that JS code a lot by using the unit circle, limiting yourself to the first quadrant, and using multiplication instead of Math.pow(). Then you

You can optimize that JS code a lot by using the unit circle, limiting yourself to the first quadrant, and using multiplication instead of Math.pow(). Then you can make it branchless using a little bitwise trickery. The result is this: https://gist.github.com/osuushi/5022143 https://gist.github.com/osuushi/5022143 . OK, so I was going to just do the unit circle thing. Then I got stuck in optimization mode. God I miss performance graphics programming.