Other DRTs as real LMTs in ACES 1.3

I did a second round of DRT LMTs. This time the LMTs use 3D LUT to get much closer match to the original DRT. For ordinary surface colors the match is now pretty much exact.

I also decided to split the LMTs into three categories. There’s now the emulation LMTs which emulate the DRTs as closely as possible, but I also added a “colorimetric LMT” which changes scene colorimetry but doesn’t do anything else (I hope the name make sense). They also retain saturation over the luminance range while the DRT emulation LMTs don’t. And a third category is Tone-curve LMTs. All of the LMTs have at least 22 stops of dynamic range (0-1.1 in ACEScct).

In my mind splitting the looks like this makes sense and provides user many more possible combinations for new looks.

And here’s some images for comparison:

These looks were applied with ocioconvert using the CLF versions of the LMTs. More examples images in the repo…

I hope again somebody finds these useful. I might add some new looks later, but I have no plans to add more emulation LMTs.

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