BUG : Using Fusion Delta keyer In ACES - Resolve 15

Hello

When i try to use the DeltaKeyer while my color management in resolve 15 is set to ACEScct, i got weird artifact color that i don't see when using the default Davinci YRGB color mode. (see attached pictures)

Did i miss a setting on in resolve for the fusion page ?
I use Davinci Resolve 15 Appstore version on Macbookpro

Thanks

Fusion doesn't use YRGB.

What are the RGB values of the pixels in that area before the DeltaKeyer is applied?

Hello

here are the values numbers (on the same spot where Red artifacts occurs) for before the deltakeyer and after (attached pictures) .

Thanks

Have you tried the ACES "highlights fix" DCTL?

Here's the file: https://www.dropbox.com/s/qfai1bh2xk7kz ... .cube?dl=0

Discussion about the problem: https://acescentral.com/t/colour-artefa ... ces/520/28

Thanks for the reply,

I tried to use the DCTL, i put it on the lut folder, and loaded it as lut directly in the clip in the media panel.

The artifacts is reduced but are still here.

Thanks

You can try prepping the matte separately and injecting it into image explicitly. Make sure alpha is solid where it should be and also clip it to 0.0-1.0 range. This way you can also try pulling the key from image in different colorspace, for example do a colorspace transform to rec709, pull the key and inject thay key to your aces image. Ofcourse you have to despill the image (because it does not go through deltakeyer), to get rid of whatever backing color cast you have.

Thanks, seems a good idea,

Until maybe Blackmagic explain why we see those artifacts and how to correct them.