Is there any way to bake the ACES maya view transfrom into the EXR.
I know thats the wrong way but for certain reasons we need it this way. We use linked files in Photoshop.
If i save the image this way as PNG i get what we need. But if i save this image as EXR we get the ACES cg image without the 1.0 SDR transform in Phothoshop.
Yeah, that checkbox does not affect multi-channeled images. Not sure if there’s a way to do it.
We have a slightly different work flow to you. But there is a tick box in the exr file options drop-down in render setting menu, at the bottom of exr section, something like save corrections in to exr. For us this saves the tonemapping and and VfB corrections into the RGB channel only of a multilayer exr. All we need to do is apply an aces to a98 lut in ps and the RGB matches our render in vray fb perfectly. U can then use this as a guide to try and match the sum of the parts in ps.
Thanks for the idea. I give it a try.
My bad, totally forgot about that option.
This option does not do anything. I see no change in photoshop if its truned off or on.
Would be great to get this somehow working with EXR. Its working fine with PNG or if we go back to non ACES.
What about LUT on top of linked smart layer?
edit: I mean acescg to whatever you are using in ps (srgb?)
Yes a solution i would like todo. But we have some extreme rules here in the Studio.
We have to find solutions that even an Ape can use.
It seems to work on my end. Are both “Save in Image” from the Display Correction and the “Save VFB Color Corrections to RGB Channel” active?
EDIT: In Maya, the option is located in the Image Format Options and it’s called “Save Color Corrections to Raw files”.
That does not work here with EXR.
If i save an PNG its working.
I use the save icon from the VFB. But its the same if i use the automatic saved images.
Could you reproduce the issue on a simple setup and attach it here?
I think there’s some kind of confusion. Just tested the color profile baking on your scene and it’s working fine. However, when you are viewing it in PS (or any other software), you need to disable the additional sRGB curve application (since the profile is already baked). Try comparing a baked vs non-baked .exr. by opening the files in Chaos Player and setting the space of both files to sRGB - the non-baked should be equivalent to Raw and the baked should look as in the VFB (as it should).
There should be no additional curve in PS. Its workging if i save the sRGB EXR (non OCIO).
I agree its looking correct in Chaosplayer.
Well, PS has its own color profile. Does the image get fixed if you apply a reverse gamma (.4545) Exposure layer?
The image gets only fixed if i turn on “convert to working color space” in PS.
And thats exactly what i dont want. But i fear thats how it is for now.
I am having the same problem with vray baked color transforms to photoshop workflow with (multichannel) exr.
Any ideas what the best workaround is nowadays? roundtrip through nuke?
If you are using 32bit psd file there is no way to turn off srgb transfer function “view lut”. every icc color profile assigned to this file is linearised by default. no way around it
you can use “soft proof” view with your monitor profile to see the exr in PS without any transform but then you are limited to 8bit export with “convert to srgb” option off. if you convert psd file to 8 or 16 the “view lut” gets baked.
if you are saving display reffered output into exr you can probably go 32float and bake additional inversed Photoshop’s view lut.
do you really need 32bit psd?
honestly i am a real photoshop noob - usually we work in nuke.But on this project we need the renders to go through Photoshop.We would like to use multichannel exr and use EXR IO for import.
The resulting PS document is a *32bit Document even though i have set the vray image format option to 16 bits (half float)
