Aye so do not downsample
It uses an image to get the depth renderer for the softshadow effect much like the SSAO hack so downsampling will make it look wierd,
was wondering if we couldnt create one at runtime instead of using a hardcoded one hmm ? bit like darkplaces detail maps.
edit: should actually be redone sikk created it while doom3 was not GPL and it probably suffers from a bit of the same issues that SSAO does.
Productivity is a state of mind.