I'm a C4D user so I'm grateful for the option to switch between the corona VFB and the C4D picture viewer for saving as in my opinion the options for formats are much better.
I'm curious to know how people save out images in the VFB? From my experiments all I see is either saving out an exr layer by layer which seems like a waste of time or a corona exr dump which gives you every layer under the sun with the file size you might expect from that. Is it possible to save out an exr that just has the layers you have selected in the multipass? You can do this using the C4D picture viewer - although for some reason saving takes much longer even though there are fewer layers!
But failing that the only other options I can see a single layered save outs of 8 bit formats, even tiff is 8 bit only. The Jpeg save is also overly compressed which spoils the image for the sake of a few mb here and there. If I save out a jpeg from the C4D picture viewer I get a quality slider and the 100% quality jpeg has noticeably less artifacts than the corona VFB one.
My standard default has long been a 16bit multilayered PSD which I think gives the best option for dynamic range vs file size once you get 8K image size with 10-15 layers. 32 bit files are huge and you end up in that situation where ultimately you need to convert down at some stage but if you need to re-render bits and then merge in to your 16 bit PS file then it gets tricky.
Would it be possible to get a 16bit multipass PSD save option in future VFB builds?