3DS MAX 2024 SRGB / OCCIO Problem

V-Ray V-Ray for 3ds Max Issues
1

Hi,
what I describe below happens during the same 3DS Max session. I don’t restart 3DS Max, I just toggle Color Management.

IMAGE 01:
- 3DS Max is set to “Gamma Workflow” in Color Management
- I have an image saved and set to SRGB in the VFB Display Correction.
- I save this image in JPG
- It’s OK. It’s identical to the VFB image

SRGB.jpg
SRGB.jpg816×612 48.2 KB

IMAGE 02:
- 3DS Max is set to “OCIO 3DS Max default” in Color Management
- I use the same image in the VFB
- I change it back to SRGB in the VFB Display Correction.
- I save this image as a JPG
- And now! Big problem: it doesn’t look at all like the VFB image.

SRGB-OCIO Config in Max.jpg
SRGB-OCIO Config in Max.jpg816×612 56.4 KB

Okay. I figure it’s due to 3DS Max’s Color Management, which is set to “OCIO 3DS Max default”.
So I switch 3DS Max’s Color Management back to “Gamma Workflow”, check that my image in the VFB is in SRGB in Display Correction and resave in JPG.
And now! Big problem again. The JPG image is identical to IMAGE 02. It’s impossible to obtain a correct JPG image like IMAGE 01. Even after switching back to “Gamma Workflow”.

The only solution is to restart 3DS Max.

2

Hi, thanks for posting. You shouldn’t be switching back and forth like that. If you have rendered in Gamma 2.2, save as sRGB, if you have rendered with ocio then save your output accordingly. What are you trying to achieve, could you explain your workflow in a bit more details.

3

In this case, let’s imagine that my 3DS Max open session is configured in “OCIO”, if I need to retouch an old SRGB image saved in the VFB, I won’t be able to save it properly… unless I restart 3DS Max and reconfigure it in “Gamma”.

It’s not really a workflow, it’s just an observation. Unless I’m mistaken.

4

HI, if you use exr you will be able to do that. The jpg is defaulted to sRGB and does not work with ocio once it already has the sRGB baked in it.