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My color management workflow was till today always very satisfying: the render images have the same color in Live Viewer as in Picture Viewer as in Photoshop.

I'm starting to use Cryptopasses using (Octane 2018 / 2019) with the final purpose the have in one render the final image and all the masks for image processing.

But I have 2 problems with the resulting images:

(this is my Passes settings) 1) opening EXR images in Photoshop (using EXR I/O) my images resul much desaturated than the Live/Picture viewer one:
2) if I save a TIF image with the "MULTI-PASS" option enabled (and for some reason the option automatically remain checked) I have a resulting image in Photoshop completely wrong
the only solution if you want to obtain a correct images in Photoshop with Passes feature enabled is to un-check the "Multi-pass" button (is difficult but possible going on "save" tabs and un-checking "muli-pass"
Have someone found the same problems or was a my mistake?

Thanks to all.

Luca

Use linear render buffer with 32bit exr and apply gamma correction on photoshop

Many thanks for your kindly answer Ahmet.

I've tried applying a gamma correction of about 0,75, but results are better but not correct again:
Since for our works have a perfect color workflow is crucial, at the moment the better result (for my opinion) is to enable Cryptopasses in linear/linear mode, and save also a TIF image but unchecking the "multi-pass" switch .
In this way we have 2 files one for correct color (TIF) one for the masks (EXR).
The best solution for future should be to have only one file with all inside.

In any case Ahmet I am disposal to make test on color workflow for you, if you need, just let me know. Thanks for your work.

For your or other user tester I have enclosed here my c4d file.