pic is 8 bit, exr are floats
your highlights are overexposed thats why you won’t have good aa on them
its often happening when you have superbright (sub)pixel(s) next to darker ones
you can either
-put on glare on those in post (like in real cameras..)
-pre-clamp pixel values (in vray there is an option for that, with subpixel aa its working quite good, for mr I think there is some mib shader)
-try not to have reflectance in material close to 1.0 (white)


From: Eric Lampi
Sent: Friday, October 26, 2012 7:11 PM
To: [email protected]
Subject: Chunky EXR highlights

Having some issue with EXRs, specifically pixelated highlights. Initially I thought it was an anti-aliasing issue, but the same frame rendered result as a Softimage pic doesn't have that problem.

Can someone tell me how to deal with this in either After Effects or the FXtree?

Thanks,

Eric

--
Freelance 3D and VFX animator

http://vimeopro.com/user7979713/3d-work

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