On Wed, Apr 2, 2008 at 3:32 PM, Guy <[EMAIL PROTECTED]> wrote: > Hmm.. in the example there is code, I meant what language is it? It's > not GLSL. Is it Cg? I'm not familiar with shaders beside GLSL and I want > to read that refraction shader in order to implement a different shader, > and I want to know what language to learn. >
ARB_vertex_program predates GLSL and Cg, its more akin to assembly than a high level language like GLSL or Cg. These days just use GLSL as per osgshaders. The osgvertexprogram predates GLSL software and hardware so isn't a great example unless you need to target old hardware that doesn't support GLSL. Robert.
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