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.exr question
show user profile  digs
do .exr's only store render elements?

what of type of information can they hold?

easy question i know, but im wondering if an expert can tell me exactly what they can do - there could be a follow up question based on the answer
read 615 times
9/8/2015 9:21:59 PM (last edit: 9/8/2015 9:21:59 PM)
show user profile  Nik Clark
.EXR is an HDR file format which can contain multiple channels and have different compression schemes.

http://www.openexr.com/

https://en.wikipedia.org/wiki/OpenEXR




read 611 times
9/8/2015 9:28:54 PM (last edit: 9/8/2015 9:29:54 PM)
show user profile  herfst1
Don't know about the render times.

I've just used exr's to store all the render elements that I ticked on. If they do more than that I'd be surprised
read 608 times
9/8/2015 9:30:24 PM (last edit: 9/8/2015 9:30:24 PM)
show user profile  Nik Clark
They can contain a lot more info than just elements, but it depends on the app saving the info.



read 605 times
9/8/2015 9:32:11 PM (last edit: 9/8/2015 9:32:11 PM)
show user profile  digs
we're trying to use exr's instead of using something like LPM (http://www.scriptspot.com/3ds-max/scripts/l-pass-manager)

so like, you have a camera looking at 5 objects that are in a line going away from the camera, slightly overlapping each other

with lpm you can render out each of those objects into it's own "pass"

i don't think exr's can do this? we use vray
read 603 times
9/8/2015 9:34:17 PM (last edit: 9/8/2015 9:34:50 PM)
show user profile  Nik Clark
"Files can contain a number of separate, but related, images in one file. Access to any part is independent of the others"

It depends if the software saving and reading the image is capable though.



read 595 times
9/8/2015 9:36:42 PM (last edit: 9/8/2015 9:36:42 PM)
show user profile  digs
ok cool, we'll keep trying, thanks
read 591 times
9/8/2015 9:41:57 PM (last edit: 9/8/2015 9:42:12 PM)
show user profile  donvella
Its has nothing to do with lpm. It is just an image format. If u have used rpf its same. Exr is just a high range image format like png but better - good compression, no color loss, 32bit.

What you are looking for is deep compositing. Available with exr2 but what u want is just the deep channel for this type of work. Ur composite software needs to understand how to use the channel as nik said. After effects wont



read 576 times
9/8/2015 11:48:37 PM (last edit: 9/8/2015 11:53:51 PM)
show user profile  digs
oh, yea i know exr is a image format and lpm is a layer manager script thing - i just wasnt sure if exr could only store render layers or not

we want to try and use exr's to hold a bunch of renders from the same shot. so instead of the exr holding different render elements, the exr would hold like 50 different beauty passes from a single frame

so each object in a scene resides on its own layer - render out each layer from camera01 frame01 (lets say there are 10 objects, so 10 layers), and pack those renders into a single exr, then go to the next frame, 10 more renders into a single exr, etc etc

but, we're testing in vray and it seems like this cant be done? not sure

read 569 times
9/9/2015 12:53:40 AM (last edit: 9/9/2015 1:02:27 AM)
show user profile  FX
Not .exr, but Cebase PSD manager has an absolute ton of options for render output, layers, objects, scene data etc.

...tho' I'm not quite sure what it is you want to accomplish.:/







read 565 times
9/9/2015 1:04:33 AM (last edit: 9/9/2015 1:04:33 AM)
show user profile  digs
3d team produce's the environments for an animation - we then pass it off to the bg team who add a hand painted feel to renders - so we give them psd files that contain nearly every object on its own layer, that gets comp's into the final image - so basically they have control in post on a per object layer

we're trying to eliminate lpm from the workflow, and were looking into if it was possible to do with exr instead

i will look at Cebase PSD too, thanks
read 560 times
9/9/2015 1:27:16 AM (last edit: 9/9/2015 1:27:54 AM)
show user profile  FX
Ah right in that case PSD manager may be the tool..outputs all objects to it's own layer using the "Render Cut Out" option.





read 556 times
9/9/2015 1:58:05 AM (last edit: 9/9/2015 2:04:25 AM)
show user profile  digs
oh man... this was so close. I tried out the trial version, but unfortunately if 1 object sits in fronat of another object, the object behind it is "cut out" like you said, we need the object behind the front most object to still be whole : (

read 554 times
9/9/2015 2:08:21 AM (last edit: 9/9/2015 2:11:53 AM)
show user profile  FX
Cebas....wankers :)


edit, I see what you mean, psd manager handles the render as you see it.

Shame there isn't some kind of Visible to Camera option.



read 550 times
9/9/2015 2:12:18 AM (last edit: 9/9/2015 2:20:58 AM)
show user profile  Bolteon
You need Render Layers...



They're in Maya.

-Marko Mandaric



read 533 times
9/9/2015 3:15:49 AM (last edit: 9/9/2015 3:15:49 AM)
 
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