RenderMan, Hyperthreading, My Balls, And the Busting Thereof
I just discovered that when I turn off Hyperthreading on my P4-3Ghz Linux desktop machine the strange rendering artifacts go away. (These rendering artifacts do not appear on dual-processing machines with two legitimate processors.)
"Bollocks!", as Kim would say.
The solution, of course, is to turn hyperthreading off which is a good idea since it only gives a 10% speed-up but requires twice as many renderman licenses which are not cheap.
UPDATE: I'm totally wrong: prman 12 changed its dicing algorithm and that's where the artifacts are coming from. Fuck.
"Bollocks!", as Kim would say.
The solution, of course, is to turn hyperthreading off which is a good idea since it only gives a 10% speed-up but requires twice as many renderman licenses which are not cheap.
UPDATE: I'm totally wrong: prman 12 changed its dicing algorithm and that's where the artifacts are coming from. Fuck.