multi layer exr and clamping highlight

[matthew999]

Hello

I was wondering if there is any way to allow render elements to respect clamping in a multilayer exr? So they add up the same as the RGB which has had its highlgihts clamped?

thanks

Matt

[yolov]

Rendering to any type of format should always composite back by simple addition.
Is there a specific problem you're having? Can you tell us more about it?

[matthew999]

hi yolov,

perhaps its photoshop, as when ever i apply tone mapping to a multlayer exr then add it up in photoshop the sum of the parts is differnet to the rgb. Im using photoshop 2020 and exrio plugin to open the exr. I have attached a multilayer exr to highlight my issue.

Thanks in advance

matt

[yolov]

Thanks for the file. I can see that there's an issue, but it's hard to say what causes it. Is it possible to send the scene ?