3ds max 2025 & Corona 12.1 gamma issue

[Michael Arch-Viz]

Hello
I'm doing animation and have a problem with a gamma on render Elements, they look dark.
Tried different output settings but nothing changed.
When I tried to save png format got a msg -invalid bit depth.
3ds max 2025 & Corona 12.1

Thank you

[CharlyRT]

What Happens if you change to Gamma 2.2 instead of OCIO?
As far as I know, Corona doesnt support ACES

[Michael Arch-Viz]

did the same, changed to gamma 2.2, and added in the frame buffer ACES filter, which fixed the color bug bug.
did not know that Corona does not support max ACES.

[CharlyRT]

The "ACES" filter in VFB its a color approach but it does adjustments in the Output, I dont really know this kind of stuff but using ACES in Max 2025 its suposed to work ok since Corona 11.2, suposely you dont need to use ACES OT to handle it, Hope this topic helps
https://forum.corona-renderer.com/index.php?topic=42357.0