Beware of "3ds Max gamma hack"! :( Tweet

[remKa]

AND when I render an animation as a sequence of .PNG, the denoised beauty pass renders like this (no issue with the normal beauty pass) :

[paride4331]

AND when I render an animation as a sequence of .PNG, the denoised beauty pass renders like this (no issue with the normal beauty pass) :

Hi,
could you please a clip to better understand this issued workflow please?
Regards
paride

[remKa]

Hello Paride,

thanks for your reply, did you see my previous post ?

My gamma workflow is the same as yours and for the animation I've set up these parameters :

FIles are saved as .PNG 24 bits sequence with a Denoised Beauty Pass in the "render elements" section (with 3ds max default parameters).

The beauty pass sequence is clean but the denoised one is all messed up.

When I'm doing a .avi, the beauty pass is also clean, but the Denoised beauty pass has a wrong gamma (like in my 1 st post)


I'm using the last version of the Octane plugin with the last Nvidia Geforce studio driver.

Thank you in advance,

Remy

[paride4331]

Hi remka,
could you try to render the animation just decreasing a little bit the render size please?
Regards
Paride

[remKa]

Hello Paride,

I've rreload the animation this morning and everything is fine now.. weird ! Sorry for bothering

[samsue]

I did that too.

I have noticed that when you change some settings that are related to gamma, it seems that the engine is not affected or does not update the information.

This happens with a certain frequency, through various scenes

[paride4331]

Hi remka,
could you share the issued scene (in pm if you want) set just like to launch the render?
3dsMax > file > archive.
Regards
Paride

[tcheng00]

I did some more research and found this option at the bottom of the kernel.

So now you can leave 3DS Max Gamma Hack on, use the non-linear tone mapper that compresses highlight (I think this is defined by the built-in Octane LUT curve). With the Passes Output Setup, you can define what type of .exr file you want. Keep in mind, the tone mapped compresses the highlight define by the LUT. I think if you use your own LUT with less highlight compression, your dynamic range will be greater, but I haven't tested it yet.

Also, turn off save file at the top of the window. Otherwise, you will end up saving 2 .exr files, one from octane .exr and one from max .exr.

[Elvissuperstar007]

viewtopic.php?f=27&t=75979&p=390847#p390847
This is not the first time I've come across this question. Why do you make the initial settings such where people need to suffer ?, I am the admin of the group and I constantly read this question, is it difficult to leave the default settings as we render and save? Why should we break our heads. You treat the user like a noob, not a professional

[Elvissuperstar007]

by default, do the settings as in the render preview,
already infuriates, you have created a problem out of the blue
I know how programmers think, just listen to creative people, do it right!