UPBGE Post Processing

Ported some old shader changes I made to blenders source over to upbge to allow for physically based shading. Mainly did it to try out the hdr support, however the offscreen buffers allowed for ...
Ported some old shader changes I made to blenders source over to upbge to allow for physically based shading. Mainly did it to try out the hdr support, however the offscreen buffers allowed for ...