Started by cyphyr, December 17, 2011, 11:22:55 am
Quote from: Oshyan on December 20, 2011, 01:20:50 amRTA enabled is only going to be slower for the desired results *if* noise is acceptable at lower sample levels. RTA can generally give you higher quality at equivalent or lower render times. I would guess the main reason for the render time issue in your case T-U is that you can't set the sampling for atmo lower than 8, and it's probably a daytime scene where you could get away with a lot less. Disabling RTA when using higher AA can definitely make sense, but again only if your clouds and atmosphere stay noise free with equivalent or lesser render time overall. In Richard's case where noise is still a problem *and* RTA is being used, even with high atmo settings, I suspect using higher AA will not be a problem - turning off RTA would likely just result in even more noise.- Oshyan
Quote from: Tangled-Universe on December 19, 2011, 09:45:44 am8 atmo samples (the bottom limit the renderer accepts)
Quote from: Matt on December 21, 2011, 02:35:00 pmQuote from: Tangled-Universe on December 19, 2011, 09:45:44 am8 atmo samples (the bottom limit the renderer accepts)The lowest number the renderer accepts here is 1.
Quote from: Oshyan on December 21, 2011, 07:06:41 pmI seem to recall values lower than 8 in the atmo node resulted in some render issues though. Have to test again I guess.T-U, tuning RTA settings can be tricky sometimes, but I've seldom seen it result in across-the-board longer render times unless it's in a situation where, as I said, you simply can't lower the sample/quality settings enough to compensate for the high AA level (i.e. a simple atmosphere situation). I'd be curious to see your scene and try a few things myself thoughg. Even if the render times were higher with RTA, 2-3 times faster without seems like a *lot*. Any chance you could share the scene? - Oshyan