On 15.6.2005, at 14:42, Florian Growrote:

> Ilmari Heikkinen wrote:
>
>> Ruby/GLEW provides GLEW ( http://glew.sf.net ) bindings for Ruby,
>> allowing you to use OpenGL extensions such as shaders, rectangular
>> textures and framebuffer objects in your Ruby/OpenGL apps.
>
> Hm, is there any samples for pixel shaders? That would certainly be 
> very interesting IMHO.
>

Yes, there's test_toon_shader.rb in the tests/ -dir
(adapted from an example on http://www.lighthouse3d.com/opengl/glsl/ )