V-Ray lens effects artifacts

[Macker]

Hey guys, I've been using the VRay Lens Effects on a scene they have been working absolutely fine up until I decided to do a night/dusk shot, and now I'm getting banding artifacts...






The image is quite large (4000x6000) - I seem to remember large image sizes being an issue with lens effects before the 3.0 update?

[MoonDoggie]

We've completely stopped using Lens Effects because every so often it was completely messing up our frames. Also these artifacts appear often, and don't work when using clamp output.

[AlexP]

I really really wish Lens effects worked reliably, such a great feature when it works. But we've also stopped using them because they are too unreliable.

[matanov]

I can't reproduce the artifacts in my test scenes. Can somebody sent me a scene ? (peter.matanov@chaosgroup.com)

[Macker]

Pretty big scenes, you'll need to provide me with FTP access.

[matanov]

Please write to support@chaosgroup.com for user/pass for the FTP.