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yaschan
08-22-2010, 12:24 AM
I'm working with this massive scene with a lot of trees which have clipmapped leaves, and I notice some noise on shadow areas, no matter how high I adjust the AA.
I was able to smooth out some of this noise by oversampling, but I wonder is there a better workaround for this?
I attach 100% magnification.

yaschan
08-22-2010, 12:29 AM
I used AA6 and Adaptive Sampling 0.1 and oversample 0.1 for the screenshot.
Adaptive Sampling 0.05 got rid some of the noise but doubled rendertime.

toby
08-22-2010, 01:10 AM
I used AA6 and Adaptive Sampling 0.1 and oversample 0.1 for the screenshot.
Adaptive Sampling 0.05 got rid some of the noise but doubled rendertime.
There's your answer, Adaptive .05 is not a very high quality setting, and 0.1 is low quality. Try .03, some people even use .01 but that takes twice as long as .02.

yaschan
08-22-2010, 05:47 AM
Thanks for your reply.

What kind of quality do you generally think is enough for TV/Broadcast?

Elmar Moelzer
08-22-2010, 01:48 PM
Did you use a compressed texture format for the clipmaps? Something like a Jpeg, maybe?
If yes, try using an uncompressed format and make sure to check your clip maps for artifacts first.

toby
08-22-2010, 03:40 PM
Thanks for your reply.

What kind of quality do you generally think is enough for TV/Broadcast?

That depends on too many things, I don't know how much aa do you'll need to clean this image up. I personally keep raising the AA until it stops looking better.

yaschan
08-22-2010, 04:46 PM
Did you use a compressed texture format for the clipmaps? Something like a Jpeg, maybe?
If yes, try using an uncompressed format and make sure to check your clip maps for artifacts first.

Yes! I did use compressed texture format, JPG quality 10.
I will change to uncompressed format!

yaschan
08-22-2010, 06:13 PM
What setting of antialias do you usually use with conjunction of a.s to prevent temporal aliasing in animations? I use something between 4-6 when using perspective camera