I am trying to pack floats into a single float (½ precision), so I can store them both in a float texture.
I have read that this is possible in the NV_float_buffer extension. The question is just how do I do that from a Cg fragment program?
I cant seem to find it described in the Cg Tutorial book.
I guess I am looking for a function like:
float pack2floats@½precision(lower, upper);
float unpack2floats@½precision([lower | upper]);
But thats just a wish.
