Write custom metadata to EXR

V-Ray V-Ray for 3ds Max General
1

Hi,

Is it at all possible to write metadata to EXR files when rendering these out of V-Ray for Maya?

2

This is the Max forum, but yes, you can do that - click on the “Image Format Options” button; in the OpenEXR options there is a field “Extra Attributes”.

Best regards,
Vlado

3

Oh, sorry. Maybe you can move the thread…

So that’s what that input box is for!
What is the syntax like when entering data into that textbox?
I was quickly trying to find syntax info over at spot3d but couldn’t find any info on it.

4

You can use the following tag:
fake=;user=

Where the “Fake” command is used to import the module.
Probably an error will appear, but it has to be ignored.

5

Not sure what Tashko is talking about, but you can see more info here:

Best regards,
Vlado

6

I don’t know if I’m doing something wrong here.. I can’t fetch anything in Nuke which has been put into the extra attributes textbox.

I’m using a pretty recent nightly of V-Ray for Maya 2012 64-bit and Nuke 7.0v6.

options.jpg
options.jpg436×455 28.7 KB

nuke.jpg
nuke.jpg467×522 34.4 KB

7

I think you have to write :
vrayversion=2.2;comment=hello

not :
vrayversion=2.2,comment=hello

8

Ahhh. It works (with semicolon). Great!

How do I set this via MEL or Python?

9

I’m answering myself on that one:


import maya.cmds as cmds
cmds.setAttr("vraySettings.imgOpt_exr_attributes", "vrayversion=2.2;hello=True;name=Rod Stewart", type="string")

Thanks guys :slight_smile:

10

Good to know that it’s working :slight_smile:

Best regards,
Vlado