anyone notice EXR's are larger in later maya compared to 2009?

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Old 06 June 2013   #1
anyone notice EXR's are larger in later maya compared to 2009?

I upgraded from maya 2009 to 2013.5 and I don't know why I never noticed this over the last several months, but EXR's are now huge when rendered in 2013.5.

1080p 16bit float RGBA files used to render out at 3.7 megs, now they're 16.5megs when rendered in 2013.5

4k files that used to be 17 megs are now 65.

The settings are the exact same. Just opening a 2009 file and render.

What gives?

Did maya change the EXR output format somewhere between 2009 and 2013?
 
Old 06 June 2013   #2
Maybe the EXR's have some kind of pyramid structure to it, as known with the use of .map files?
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Old 06 June 2013   #3
yeah I've read a little about that feature with EXR's - I didn't know autodesk changed that.

I want the option to put it back how it was. The diskspace usage is obnoxious
 
Old 06 June 2013   #4
Check what type of compression is being applied to the EXRs.

I believe you can now change the compression in Mental Ray for Maya in the most recent releases of Maya.
 
Old 06 June 2013   #5
Originally Posted by earlyworm: Check what type of compression is being applied to the EXRs.

I believe you can now change the compression in Mental Ray for Maya in the most recent releases of Maya.



Yeah, the default in 2013 is none for compression. Obviously, you're going to have some huge files unless you change that. I find that both RLE and ZIP work pretty well.
 
Old 06 June 2013   #6
how do you change the compression in Maya 2013 or 2013.5?

Is it an environment variable or script?

I know 2014 has an option, probably easy to find in the render globals, but we haven't transitioned to 2014 yet.
 
Old 06 June 2013   #7
In 2013 it's also in the render globals I think. When you change your format to EXR, I believe right under it is the compression selection box.
 
Old 06 June 2013   #8
hmm, I don't see any option for it in the drop down menu in maya 2013.5
 
Old 06 June 2013   #9
2013 and 2013.5 in render settings, common pane, image format you choose exr, right underneath image compression combo box opens up.
I'm on Linux, but I'd think it'd be the same on windows and mac (unless the library on those platforms is more limited, which sounds unlikely).
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Old 06 June 2013   #10
I'll take a look at maya on linux tomorrow when I'm at work.

here's what it looks like in the render globals for me right now:
 
Old 06 June 2013   #11
I'm at work now and the render globals are the same on both Windows and linux.

Maybe it's a 2013.5 issue that's not part of 2013?

Last edited by sentry66 : 06 June 2013 at 09:42 PM.
 
Old 06 June 2013   #12
Looks like some of the proc's from createMRImageFormatControl.mel aren't being called properly.

Does this give you any feedback or an error?
getAttr mentalrayGlobals.imageCompression;


You might be able to setAttr that way, RLE is 2 on the list and ZIP is 4
 
Old 06 June 2013   #13
hey thanks, I'll give that a shot
 
Old 06 June 2013   #14
Thanks Faux,

setAttr mentalrayGlobals.imageCompression 4
did the trick


when I initially entered:
getAttr mentalrayGlobals.imageCompression

it didn't reply with any feedback at all

after I entered in "setAttr mentalrayGlobals.imageCompression 4", then the setAttr command, then it replied back with "4" and the file sizes are now 1/3 the size!

thanks again
 
Old 06 June 2013   #15
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