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Saving exr from Vray
show user profile  3joez
I tried saving to exr from Vray with various render elements, via Backburner. 16 bit half float.
When I open the file in PS i see only the rgb main pass.
In vray I've set up all render elements that I can see and save manually, if I don't use backburner.
What am I doing wrong?
read 7129 times
6/30/2011 9:36:47 AM (last edit: 6/30/2011 9:36:47 AM)
show user profile  zeefusion
Photoshop wont see the elements without a 3rd party plug-in
http://www.openexr.com/photoshop_plugin.html

read 7127 times
6/30/2011 9:40:38 AM (last edit: 6/30/2011 9:40:38 AM)
show user profile  3joez
Thx James, going documenting.
read 7119 times
6/30/2011 10:25:42 AM (last edit: 6/30/2011 10:25:42 AM)
show user profile  3joez
Well, as for the official documentation w7 and cs (my frameworks) are not supported.
In the doubt, I've installed the plugin in the base folder. And I still can open all others render elements, beside the first.
read 7114 times
6/30/2011 11:07:52 AM (last edit: 6/30/2011 11:07:52 AM)
show user profile  Vivifyer
Firstly, if you use gamma 2.2 correction and render with the frame buffer window. you need to turn off the use of the frame buffer so that elements will save. Dont worry when you open them in photoshop the gamma should be corrected anyway.

also this.



leaving it checked will make a layered exr that can be opened in nuke or whatever, but photoshop cannot see them, so unchecking will save out all the elements as seperate exrs to be comped later.
Vivifyer - Lastpixel

read 7106 times
6/30/2011 11:56:40 AM (last edit: 6/30/2011 11:56:40 AM)
show user profile  3joez
Still same (unwanted) results with those settings, here's my tab from vray render elements.

1
read 7085 times
7/1/2011 8:51:20 AM (last edit: 7/1/2011 8:52:46 AM)
show user profile  Vivifyer
enable is not checked down the bottom there.

like i said with the frame buffer, if you use it, it will automatically UN-check them, so render to file, without the frame buffer, if its only 1 single still. and you really need elements, then you can just select them using the frame buffer window, from the pull down menu on the top left of your render window, and save them all individually, manually. :P
Vivifyer - Lastpixel

read 7058 times
7/2/2011 7:05:56 AM (last edit: 7/2/2011 7:05:56 AM)
show user profile  Bolteon
any particular reason why youre not saving via the vray frame buffer dialog rollout?

-Marko Mandaric



read 7051 times
7/2/2011 3:07:27 PM (last edit: 7/2/2011 3:07:27 PM)
show user profile  3joez
Yes, I'm sending via backburner multiple renders overnight.
When I'm at work I use the vray frame buffer rollout dialog.


If I uncheck use vray frame buffer, then 3dsmax's one pops out.

Nobody's out there is using exr output?
read 7026 times
7/5/2011 10:56:44 AM (last edit: 7/5/2011 10:56:44 AM)
show user profile  Vivifyer
It will render with maxs frame buffer and save out the rgb exr, as well as the other elements. unless you're using RPM.. then you MUST turn off vray frame buffer for it to actually save those elements.
Vivifyer - Lastpixel

read 7020 times
7/5/2011 11:36:28 AM (last edit: 7/5/2011 11:36:28 AM)
show user profile  3joez
Sorry Vivifyer, what is RPM?
I've checked enable (for "selected elements parameters") and turned of vray framebuffer.
Then, I opened the exr in CS4 and still I could see only the rgb render on one layer.
There are no other layers.
(In max I can see the various render elements opened with several max buffers, lingering around).

read 7008 times
7/5/2011 4:23:15 PM (last edit: 7/5/2011 4:23:15 PM)
show user profile  Bolteon
"Yes, I'm sending via backburner multiple renders overnight."



why would you think that it doesn't work just in the same?


leave the vray frame buffer dialog on. done.

-Marko Mandaric



read 6993 times
7/6/2011 2:30:30 AM (last edit: 7/6/2011 2:30:30 AM)
show user profile  3joez
Because when backburner saves one render, (say c:\ example.tif) it saves only one render element. Then it closes vray FB and starts another render.

Moreover, I would like to learn that workflow for personal improvement.
I've heard a lot about exr, and honestly I'm wondering why there isn't a shortest and easy way to save render elements as layers.
read 6984 times
7/6/2011 9:13:46 AM (last edit: 7/6/2011 9:13:46 AM)
show user profile  Vivifyer
CS4 does not support layered EXR's you cannot open a single exr file, and see all the elements. The work flow im talking about is for working with CS4, which involves saving elements as separate exrs, and layering them back together in post. they are saved as separate sequences in separate directories. Vray frame buffer on will actually disable the output of separate sequences. (this is why its off, when not saving a layered EXR)

openEXR is an alternative, but also a pain, its just as easy to do it separately.

edit- there is also PROexr, which allows you to read layered EXR's in after effects, but its so friggen slow its not even worth trying.

I might try and do some sort of tutorial when i have some spare time.
Vivifyer - Lastpixel

read 6981 times
7/6/2011 11:20:59 AM (last edit: 7/6/2011 11:23:36 AM)
show user profile  Bolteon
Because when backburner saves one render, (say c:\ example.tif) it saves only one render element. Then it closes vray FB and starts another render.



and that's why you save out to layered exr's (in the red box).





and use real compositing programs (or if your such a nanny; take your exr and explode it [yes, this is not only possible but easy too AKA in the green box])



pwned.

-Marko Mandaric



read 6977 times
7/6/2011 11:24:41 AM (last edit: 7/6/2011 11:31:00 AM)
 
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