I'm not sure where the warning about gamma mismatch is referring to.

[y_hagiharaNVXEE]

I am afraid this is a rudimentary question.
When I open an old 3dsMAX file I get the following warning message
'File Load: Gamma & LUT Settings Mismatch'
It says that the file's bitmap output is set to gamma 1 and the system output gamma is 2.2.
However, the file's render output setting is set to 2.2 with automatic disabled. The display settings are also set to 2.2,
The rendering results seem to work correctly for both input and output.
Where is this “file bitmap output setting” that you are looking at? How do I get rid of the warning?

[MartinBeh]

Not 100% sure but this could be coming from the render dialog where you specify which file to save to (Render Setup > Common > Render Output > Files).

Maybe someone has set that file output setting to gamma=1?

[y_hagiharaNVXEE]

Thanks for the reply.
I have unchecked the automatic one for the file output as you suggested and set gamma=2.2 for the manual one and saved it. So both input and output are set to gamma=2.2, which I think cancels out the gamma, but I still get a warning when I open the file that the output gamma is 1. What is the location of the output gamma that is pointed out in the warning?

[cuneyt.ozdas]

What version of 3ds Max you're using to open the scene? That warning has been removed in 2024 and newer versions.

[y_hagiharaNVXEE]

Thanks for the reply.
The version of 3ds Max is 2023. We are using that version because we are taking over an old project.
Does this mean that after 2024, there will be no warning even if there are problems with file input/output? That is what I am afraid of.
I know that the gamma output check from the basic settings that used to be there is not visible now.
If I use 2024 or later in the future, where should I start to check the gamma output?

[cuneyt.ozdas]

Starting with 2024, the concept of "machine-specific default file gamma values" is removed, that means whatever values are set in the scene file will be respected without any mismatch warning. Note that even in 2023 those values are not easily accessible in the UI, only via the max script variables fileInGamma and fileOutGamma.

Please note that any value other than 2.2 is not recommended at all for new scenes, maxscript variables are available only for supporting old scenes.

[y_hagiharaNVXEE]

Thank you for your explanation.
So you mean,The file-specific gamma values pointed out in the warning are different from rendering settings, monitor settings, etc,It cannot be confirmed in the usual way.And there is no way to fix.
So if there is a problem, I should turn off the automatic settings and control the input/output manually.
Is it correct that the recommended 2.2 means that the input of texture information such as jpeg should be linear at 2.2, and the output should be gamma 0.45 (gamma 2.2 On the 3dsMAX display)?