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View Full Version : Atmosphere Quality Boost higher than 4?

mowax74
10-18-2009, 09:09 PM
hi. i need to render an animated cloudy background sky out of vue 7.5. it looks pretty good right now, but the bottom-side shadows on the clouds are to noisy. i read some tutorials, many people suggest to set the quality boost to a higher number than 4. if i do that and reopen the atmosphere editor, it is reset to 4. so how is it possible to set this number to a higher value? or what else can cause that noise? Its an spectral atmosphere model with an global ambience light model.

thanks in advance for any suggestions.
ajsa51
10-25-2009, 08:14 PM
There are 2 things that eliminate most of the noise in spectral clouds. That's turning up the Quality boost like suggested or using higher render settings like the Ultra preset render quality, but, unless you have access to a huge render farm, even a short animation can take a very, very long time to render.
mowax74
10-25-2009, 11:19 PM
the quality boost at 4 was ok at the end. it looked still a little bit noisy in a single frame, but there were no flickering in the animation, i'm happy about that. used a antialiasing of min9/max16.
rendertimes are acceptable on a quadcore machine.
Jonj1611
10-26-2009, 09:59 PM
There was a bug in some Vue 7 versions where it wouldn't remember the atmosphere quality boost setting, but that was fixed in the latest update. Might be worth getting if you haven't got it already.

Jon
dburdick
10-26-2009, 10:10 PM
Try cranking up the Object AA quality threshold setting to 95% or 100%. I've found that setting Object AA setting to 3 min, 9 max and 95% eliminates all cloud noise regardless of what atmo quality settting I use.
nPellegrino
10-27-2009, 10:52 AM
The user render setting advanced effects quality 0 - 100% is about equal to 2.5 in quality boost of the atmosphere, but it renders faster.

To completely remove grain, a quality boost of 16 - 32 in the atmosphere is needed, which is insane if you are rendering clouds. You can normally get away with using a higher advanced effects quality, using a lower quality boost, and use the soft AA mode.

I normally render low quality settings with a larger frame and then scale down.

If you can modify the clouds, check the GI light and decrease the uniform setting. You may want to also clip out the high and low points of the clouds density, with the filter. If the noise around the edges is almost transparent, but can't really be seen as the main cloud, it could cause noise. You could also try to clamp the filter up and down.
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