I'm trying to implement light scattering effect.
here is my rendering function http://scsys.co.uk:8002/282348?hl=on&submit=Format+it%21
at the moment, the rendering is horribly slow.
at the moment it looks like this: http://tinypic.com/view.php?pic=taj3vp&s=5#.UpsERx9OXKM
fragment shaders i'm using same as in tutorial, unchanged.
Any suggestion how to make rendering better?
Suvir