Lens Effects Problem with black border

[TragnarionStudios]

Hello;

I,ve a problem when a i use the lens effects feature. My problem es simple, the feature runs normally, but creates a black border in the VrayLightMtl.

See the IMG, thanks a lot.

[LudvikKoutny]

Do you use any sharpening AA filter by any chance, such as mitchell?

[TragnarionStudios]

OMG!

Ok, yes I had a Catmull-ROM filter, this error is curious.

Thanks a lot Recon442

[LudvikKoutny]

Yep. My uneducated guess is that as sharpening filters can introduce negative values around highlights, lens effects multiply these values even further, so you get brighter positive values, but also darker negative ones Try VrayLanczos filter. It's pretty sharp, but will not make these artifacts.