Search found 4 matches

by aganzerli
Thu May 02, 2019 10:31 am
Forum: Other
Topic: .cube lut problem
Replies: 6
Views: 484

Re: .cube lut problem

oh ok I understand, so is there a way to pass a "scale" value to the decoder (let's say 0.25) so that exr/dpx/etc files in the range [0, 4] would be scaled to [0, 1] at decode time ?
by aganzerli
Mon Apr 29, 2019 10:41 am
Forum: Other
Topic: .cube lut problem
Replies: 6
Views: 484

Re: .cube lut problem

Hello again and thanks for your quick response ! I've tried with the latest nightly, input is now scaled correctly, but seems clamped at some point.. I've uploaded an ACES exr file, a lut, a reference (what it should look like), and ffmpeg current output so that you can see and test yourself. You ca...
by aganzerli
Mon Apr 22, 2019 5:22 am
Forum: Other
Topic: .cube lut problem
Replies: 6
Views: 484

Re: .cube lut problem

hi!
the file is available here:
https://ufile.io/6zqwtvsq

thanks!
by aganzerli
Fri Apr 19, 2019 12:34 pm
Forum: Other
Topic: .cube lut problem
Replies: 6
Views: 484

.cube lut problem

hi! I'm using ffmpeg to convert dpx/exr files to mp4 files. It seems there's a problem with how ffmpeg compute transformed color values when using .cube lut files, when MAX_DOMAIN is not equal to 1 in the lut file. In the .cube file specs, MIN_DOMAIN and MAX_DOMAIN refer to input bounds, but it seem...