Animated lights alias very badly Tweet

[senorpablo]

I have some headlights on an approaching vehicle. The silhouette is very noisy, to the point of being very distracting. It appears as if the light is wobbling. Even at 2000 samples, I can't see any improvement over 300 samples.

It takes be back to real-time rendering in 1995.

Any suggestions on how to improve this?

[ Play Quicktime file ] Octane Noisy Lights.mp4 [ 1.8 MiB | Viewed 1086 times ]

[senorpablo]

No one else has an issue with this?

You can see the aliasing in still frames as well:

[DigiChuckle]

It's not just lights for me. After hours of rendering and saving out passes, I noticed the alpha channel was aliased while trying to do a back-to-beauty composite in Fusion. This is bad!

The alpha channel in exr will not be anti-aliased whether or not you multiply the color channels with it (by checking the pre-multiplied alpha checkbox in the Imager). This is true for all beauty passes I tried. Not true for info passes.

The work-around while they fix this is to take the alpha from an info pass and transfer that over to the beauty (in a compositing package).

Otoy, is there a way to switch between color and alpha in SA viewport?