Forum Discussion
How to retrieve eye rays for fragment shader?
I feel that I bother this part of forum for way too often. This is already something I feel like I would figure out soon on myself. On fragment shaders, some nice effects require that you can cast ...
"cheery" wrote:
I thought perspective matrices don't invert well. But I can as well try it out.
Well, you can always pass the eye space coordinates from the vertex shader to the fragment shader. Just create a new out value and populate it with the incoming vertex transformed only by the view matrix.