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Linear Workflow Doesn't Work - Clamped Pixel Values
Posted: Thu Sep 16, 2021 12:17 pm
by shaygold
Hey,
I'm trying Saving to 32bit OpenEXR but it doesn't seem to work anyway i do it.
ocio : linear Srgb \ Aces 2065-1
frame buffer : HDR
File Type : EXR (32 Bit)
response in camera \ viewport : Linear\Off
the only way I've succeeded was using octane octane version 2020.1.5_-_10.19
there it has HDR\Linear Frame buffer that can be saved.
Is it a Bug?
I'm doing something wrong?
Please Help
thanks
Re: Linear Workflow Doesn't Work - Clamped Pixel Values
Posted: Thu Sep 16, 2021 5:50 pm
by elsksa
Hello,
How are you evaluating the issue/failure? Everything works as expected on 2020+ and several 2021 versions I have.
A few corrections to the information you have shared:
• ACES via OCIO is recommended to be set-up in the preferences as "Automatic". This should result in
>Manual (Octane) ACES2065-1
>Manual (OCIO) ACES - ACES2065-1
Assuming you are using the rather inappropriate default ACES OCIO configuration file/package.
• 32-bit is overkill and in VFX/CGI productions, for beauty EXR exports, 16-bit scene-referred linear is recommended.
A few important reading suggestions:
•
viewtopic.php?f=30&t=77601&p=404119#p404119
•
viewtopic.php?f=86&t=78275&p=403666#p403666
•
viewtopic.php?f=30&t=77601&p=404119#p404147
•
https://www.elsksa.me/octane containing two pages on "color-management" and ACES
Looking forward to hearing back from you with more information.
Re: Linear Workflow Doesn't Work - Clamped Pixel Values
Posted: Fri Sep 17, 2021 6:35 am
by paride4331
Re: Linear Workflow Doesn't Work - Clamped Pixel Values
Posted: Fri Sep 17, 2021 9:25 am
by shaygold
I'll try the settings from the linked post.
thanks!
Re: Linear Workflow Doesn't Work - Clamped Pixel Values
Posted: Fri Sep 17, 2021 1:45 pm
by elsksa
I had several forum threads opened and did not realize it was the
3ds Max Octane sub-forum... Thank you Paride.