We'll need a system to generate Python and GLSL functions implementing the same logical operations (mostly mathematical equations). Examples:

• Transformations on the CPU & GPU
• Color space transformations on the CPU & GPU

We could have a specific module for that. I think it should be pretty lightweight. One would provide 1 or several mathematical function(s) as a string (like x' = a*x+b, y' = c*y+d) and the module would create a Python function and a GLSL function. It could also generate the inverse function (or maybe this should be left to the user at first).

Things to work out: data types (vec3 etc.), how to vectorize (NumPy arrays on the CPU, kernels on the GPU) ?