Request for LUT file support (.cube, .lut, .3dl..)
Feature Request: Support for 1D/3D LUT (Look Up Table) files. e.g. .cube, .lut, .3dl.
https://wwwimages2.adobe.com/content/da ... on-1.0.pdf
Imagemagick supports CDL data (-cdl <cdl file>). It also supports CLUT as HALD files. (-clut <hald .png>)
Aside from needing to convert a LUT file into a HALD image with the specified LUT, it generally does the trick.
However for a while now, have been running into more and more instances where color conversions seem to be done while wearing boxing gloves.
Getting images that are being pushed into the negatives and/or pushed color values well over 1.0 before then getting the counter-part CDL or LUT that brings the colors back into 0.0-1.0 range.
Granted, I have not attempted using an .exr as a HALD yet, will give it a try. Also ham-fisting color conversions would not be IMDev's problem.
But the use of PNG HALDs now truncate the data, since it cannot record color values below 0.0 or above 1.0. Especially clipping the top before applying the associated color transform really shows up.
Again, this might be cured by using an alternate image format.
However is it possible to request the support of some of the most standard LUT files? I believe .cube is the most prolific format.
It would be wonderful to hear whether this was a worthy consideration for a feature. (or to smack me on the head to tell me already done.)