Blackmagic Forum

Hello,

Why is there a difference in luminance and color between the images on the timeline (and in the Color page) compared to what we see in the Fusion page?
How to get around this problem?

I work with a Canon C100 MkII using either the Clog profile or the WideDR (which is a kind of less flat Clog)
The files are MP4 or AVCHD 25 Mb/s 8bit 4.2.0

In the attached example I have set "Color Science" to "DaVinci YRGB Color Managed" and "Color processing mode" to "HDR Davinci Wide Gamut Intermediate"
And the Color Space input of the file is on Canon Cinema Gamut / Canon log.

I have the same kind of problems with WideDR or EOS Standard images or with Clogs without set the input space color.
The problem is less but also exists when I set "Color processing mode" to "Automatic color managment"


Thank you for your help.

After trying different settings in the "Color Management" of the "Project Settings" page, I see that:

- No image change between the "Edit" page and the "Fusion" page if we choose "DaVinci YRGB"
- Small changes if we choose "DaVinci YRGB Color Managed" with "Automatic color management"
- Big changes if we choose "DaVinci YRGB Color Managed" with "HDR DaVinci Wide Gamut Intermediate"

Is there a setting for the Fusion page to support advanced color management?

Thank you.

The differences in how they are displayed are simply because blackmagic has never fixed the incorrect display luts.
When you are in any of the color managed modes then Resolve will convert your footage into a linear gamma space. Which is correct. Fusions tools (at least most ) assume you are working with linearized footage.
But you have to apply a viewer LUT because you can’t really work when seeing linear images.
And those do not match between the Fusion page and the other pages. This is very unfortunate because the “Managed” lut they apply is very annoying to disable and often enables itself again.
The easiest example of this is when you set your project to aces. Instead of applying the correct Aces ODT in the fusion page they chose to use the standard Gamut Transform from fusion to apply the gamma curve.
So it’s almost impossible to achieve a consistent image between the fusion page and the other pages until blackmagic fixes this or enables us to manually override this more easily.

Thank you for your answer and your explanations.
I just found a tutorial from VFXstudy on YouTube which explains how to get around the problem ... but It's a bit tedious to implement.

Hope Blackmagic fixes this problem soon.