Resources to learn Shaders

[kung foo man]

Hey all,

since CoD2 supports .hlsw-shaders there should be some shader-knowledge in here for awesome effects in CoD 2/4/5 (even 1/UO)

Here you can learn shaders instantly (needs some modern browser with WebGL):

Sinus wave: http://glsl.heroku.com/e#13720.0
Text in fragment shader: https://www.shadertoy.com/view/XdXGRB
Creepy mountains: https://www.shadertoy.com/view/4sSGWm
Rasterizer: https://www.shadertoy.com/view/XdlGzn#

Of course this is perfect for learning 3d math (vectors, matrizes) also!