Corona 12 HF1: saving render elements and Lightmix passes

[johan belmans]

We recently installed Corona 12 HF1, before we were still on Corona 11.

With Corona 11 (production rendering) the saved render elements and lightmix elements contains only the specific render elements or light mix pass.
With Corona 12 each of them contain all render elements and light mix passes and the beauty pass. So they all have the same file size as the beauty render, which is killing my hard drive :-)
Secondly I cannot rename the CXR file extension to EXR from the render elements which I need for easy use in Photoshop. Because it will show the beauty render instead of the render element.
I have searched on the forum for related posts, but couldn't find one or looked over it.

EDIT: the issue appears only when rendered via Backburner.

[TomG]

Sorry to hear you are having problems. I don't understand this part: "Secondly I cannot rename the CXR file extension to EXR from the render elements which I need for easy use in Photoshop. Because it will show the beauty render instead of the render element."

If you rename the main CXR to EXR, then ALL of the render elements will be in that, and all will show in Photoshop as layers so you can work with them as you like, which means rather than load several EXRs with just one layer, you can load the one EXR and get all the layers. OFC since Photoshop is terrible at working with EXRs, you do need the free EXR-IO plugin.

[johan belmans]

about the renaming of the file extension.

I am aware of the EXR-IO plugin for Photoshop. But no need for me to make use of it. I use the Corona Image editor for post processing the rendered CXR and save the beauty pass as an EXR. I have a script for renaming the render elements I need into the EXR extension. I know about the Save All option in the Corona Image Editor, but the script I use saves me time. In Corona 11 the renamed render elements contains only the render element and after renaming to EXR, you can easily drag them into Photoshop. Attached you can find a screenshot which makes clear that with Corona 12 HF1 the saved render elements contains all passes instead of one, check the file sizes.

[johan belmans]

Did some more tests and the issue happens only when the render job is saved as CXR rendered with Corona 12 HF1 and send via Deadline (10.3)
The same job saved as EXR gets the suspected outcome as in Corona 11.
For the moment we have solved the issue by activating the "Do Not Save Render Elements Files" within Deadline (Render Submission)

[maru]

This also happens when using batch rendering and pressing cancel. We have it logged at (Report ID=CMAX-1247).

[johan belmans]

Ok, thanks Marcin