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Highlight Difference

https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=222011

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Highlight Difference

PostPosted: Thu May 22, 2025 10:39 pm
by akcivan
Hello,

I was using a " Luminance Mixer default to Zero " feature for default on my every project but i couldn't get Highlight mode > Difference feature doesnt work properly. Today i just checked my old projects and i saw there is everything i want to see.

So, i've found a bug with checking differences between projects.

You can clearly see it on that video


Thanks

Re: Highlight Difference BUG

PostPosted: Fri May 23, 2025 12:29 pm
by Sven H
Great catch. Can confirm this behaviour in 19.1.4 as well

Re: Highlight Difference BUG

PostPosted: Fri May 23, 2025 12:33 pm
by akcivan
Sven H wrote:Great catch. Can confirm this behaviour in 19.1.4 as well


Yea, its been a long time about it. Even i thought they have changed that feature to black (useless) one with some reason :D

Re: Highlight Difference

PostPosted: Wed May 28, 2025 1:07 pm
by akcivan
Resolve 20 has been released but this bug still exist.

Re: Highlight Difference

PostPosted: Thu Jun 12, 2025 6:36 pm
by madchiller
Came here to report this.. I have always used A/B Difference Highlight mode to check my noise reduction.... and now its completely broken by default. All I get is black... Old projects work.. But new ones do not it seems. Happens when the Preference "Luma mixer defaults to zero" is set in the project settings... Unchecking it seems to fix it..

Win11, Latest Nvidia Studio Driver, DR20.