Dark outlines around bright highlights

[Yohan]

Hello,
I´ve been having a problem with some black outlines just around very bright areas.
This has accourd both when the sun shines in thru a window and highlights a part of the wall,
and it has also occurred from an highlight in a mateial

In those cases i used Irrmap & QMC and Hsv color corr with gamma 2,2

So i guess overbright colors produces this, is there any setting that i should ajust,
or do you think the only way is to decreas the multiplyer of the light?
let me know if you need more information about my settings

[Candelero]

You can check ON both: sub-pixel mapping and clamp output in the Color mapping rollout. As well as using the VRaySun you may want to make it invisible too.

Best regards,
nikki Candelero

[studioDIM]

Also, AA filtering with sharpening (so with negative parts) filters produces issues like those.
Try changing filtring to a blurry one, or if rendering stills, and with a high enough QMC AA sampling, turn it off entirely.

Lele