Hi Eary_Chow,
many thanks for the EXR.
You are right, the Standard “View Transform” gives wrong results.
But with ACES OCIO config the Standard gives correct results.
However, ACES with SRGB View Transform has a nicer saturation.
Okay, here is my Workflow.
I prefer this ACES OCIO config because it has Filmic in it.
Since I update Blender frequently, I swapped out the ACES config (E:\Programs\Colormanagement) so I don’t accidentally overwrite it when I update.
To start Blender with the ACES config, I have a small *.bat file.
Blender - ACES.bat
Set OCIO=E:\Programs\Colormanagement\config.ocio
START “Blender 3.0.0” “E:\Blender\blender.exe”
You can also define the config.ocio as an environment variable, but this can cause problems with other programs.
For changing the (Image)colorspace for aces I use the “Aces helper”
Everything works perfectly.
So, when I start Blender with the *.bat file, I have all the different modes available to me.
P.S.
I just see there is another Blender ACES project here.
Here everything is described once again and it has ACES 1.3 on board