Also I tried looking at your example, but it said that it was made using a newer version (despite the fact I have the newest stable release).
Yeah I just realized I made the example on 0.99.4 (an unstable build). I cba to redo it on another version so I'll just post pics of it instead
(My pictures are always too big!)
[quote="Farmrush":vv7amxlb]I changed the Sampling from Linear to Point and this dropped CPU usage to 5-6% and only 13mb of ram. When I change it back to Linear is uses a constant 40-50% CPU and 130mb of ram, again, despite the program not doing anything? This seems very odd. GPU is an 8800GT.[/quote:vv7amxlb]
I'm not sure what's causing this on your end. The example I posted uses linear sampling and it's not really using much resources at all on my end. I have a 8800GTS.