Oh yes, I've been waiting to do that with OpenGL for a looong time. As a matter of fact I preferred working with the ARB_vertex_program and ARB_fragment_program

Oh yes, I've been waiting to do that with OpenGL for a looong time. As a matter of fact I preferred working with the ARB_vertex_program and ARB_fragment_program extensions; I even designed (but never fully implemented) a custom, Lisp inspired language that compiles into the ARB_???_program assembly.