GLSL Bump Mapping

Following the 'Swiftless' GLSL tutorial at http://www.swiftless.com/tutorials/glsl/8_bump_mapping.html bump mapping is now working on the water while stationary. Generating a normal map while animating still gives a frame rate less than 1 however, making the demo unusable.

While stationary, the bump map is convincing:

I'm thinking it would be possible to calculate and output the normal map only when saving the actual textures to disk. That way the animation would be less choppy while interacting with it.

At this point I've added  GLUI controls to adjust the water level and colour, as well as assigning record and print keys for animation. I'm going to move onto smoke simulation next, and likely work out the normal map output at some point.