ziggie opened this issue on Aug 04, 2009 · 617 posts
pjz99 posted Tue, 04 August 2009 at 12:26 PM
Quote - Okay.
Using indirect lighting?
I can't even move the mouse anymore, it lags my machine so much. (1gb SLI Nvidia cards, 5gb system RAM, AMD Phenom. Not exactly a slow system.)
This is an obscure phenomenon called "100% CPU utilization". In rendering, it is generally a good thing. If you really, really, really need to do other crap besides render, you can try reducing the # of threads (assuming you have a multi-core machine). Renders will of course take longer.