Nick Shaw

Results 36 comments of Nick Shaw

Yes, I came across the DCI reference to YCxCz before, but was unable to find any spec for it. Does that mean it is simply the result of feeding X'Y'Z'...

You could well be right. I was trying to think what appropriate weightings for X'Y'Z' would be. In theory they should be [0.0, 1.0, 0.0] since Y'CbCr luma is meant...

@scoopxyz it would be good to get your eyes on this. The LogC4 to ACES is pretty much a copy of the IDT, except it uses the same CTL `calculate_rgb_to_rgb_matrix`...

In my testing, the use of `calculate_rgb_to_rgb_matrix` means that there are some very small differences in the lower decimal places between using the IDT and the CSC. But this is...

Thanks @KelSolaar So is it the case that the config must have a 1:1 relationship with Output Transforms in `aces-dev`? I was imagining that given the separation of views and...

[This commit](https://github.com/ampas/aces-dev/compare/dev...nick-shaw:aces-dev:Display_P3_HDR) adds Display P3 1000 nit forward and inverse Output Transforms. But it is not clear to me what the file names and transform IDs should be. Thoughts? Tagging...

Is there a reason that the ACES Reference Gamut compression is available as a look in the Reference config, but not the Studio config? I feel we should be encouraging...

Correction. It's not alphabetically before it in terms of name, but it does come before in the Reference config. Is that ordered based on CTL file name? If they were...

It would also raise the question of whether you would want a version of a colourspace which used a derived NPM to be considered equal to one with a "per...

Good catch @KelSolaar. It seems that when all three channels are negative, the Blink result is `r=g=b=max(rgb)`, whereas with pure Nuke the lower two are compressed toward the max value....