Fusion Matching RESOLVE Colour Page. ACES workflow

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I found a quick way to match your Grade in Davinci Resolve into Fusion in ACES workflow. Quite a lot of people are doing simple corporate videos etc where we grade 1st then add titles / Graphics etc in fusion afterwards. So here is a quick way to get your Fusion page looking exactly like your Color page in Davinci Resolve in a ACES workflow.

https://vimeo.com/396253335/28c2c90b1f

It’s a useful tip putting the OCIOColorspace node after the MediaOut node, so it does not affect the image sent on to the Color page (resulting in a double-LUTted image). But as you say, It is a playback speed killer.

If you apply the OCIOColorspace as a Fusion Viewer LUT, that does not have the playback speed hit. I’m guessing it’s a playback optimised version of the transform, which does not need to support floating point output, as it’s only going to the display.

However the Viewer LUT is not applied to the SDI output (anybody know how to do that?) and therefore you see ACEScg there. So it may be useful to use a combination of the two approaches – using a viewer LUT to see the image on the UI monitor while compositing, and having an additional OCIOColorspace node after the MediaOut, which is switched of most of the time, but can be toggled on in order to check the image on the broadcast monitor, using cacheing for real-time playback.

(Caveat: I do not claim to be a Fusion expert, and I do find the way the Viewer LUTs work slightly confusing)

Ah yes. I was using the viewer LUT before my method but I could not find a way for the life of me to set defaults. So every single clip I brought into Fusion I would have to set up the viewer LUT over again, and it’s full of bugs. I would have to click the viewer LUT button on & off several times just to work & then sometimes part of my viewer LUT combination would disappear. What the…? So I resorted to the fast OCIO Color Space mode after the MedianOUT node, where I can set defaults. :v:. Thanks Nick!