Just checked. As of maya 2013 the default is scanline and not tiled for EXR's with MR. According to Nvidia ARC (mental ray) They seem to not know whether Maya is doing other things that might change that back to a tiled image. (which they might for god knows why but they might.)
"OK. First let's reference the source: http://www.openexr.com/openexrfilelayout.pdf ZIP with scanline means 16 scanlines ZIPS with scanline means 1 scanline mental ray uses that nomenclature I say with scanline as opposed to tiled, because both are options, and this is where some of the confusion enters. In Maya 2012 (mr 3.9), Maya translates zip to zip compression in mental ray. In 3.9, by default that means tiled, not scanline. In Maya 2013 (mr 3.10), we changed the default to scanline instead of tiled for exr and tiff. Whether Maya supports the "tiled" framebuffer option is another question. In any case, what you want may now indeed be the default in Maya 2013 when choosing zip. " Randy S. Little http://www.rslittle.com <http://reel.rslittle.com> http://www.imdb.com/name/nm2325729/ On Thu, Jan 31, 2013 at 10:30 AM, Nathan Rusch <[email protected]>wrote: > Well, as Deke mentioned, this option may just be applying ZIP > compression to the individual tiles, as opposed to buffering the tile data > and then writing a a scanline-based image at the end. > > -Nathan > > > *From:* Randy Little <[email protected]> > *Sent:* Thursday, January 31, 2013 10:23 AM > *To:* Nuke user discussion <[email protected]> > *Subject:* Re: [Nuke-users] EXR - Maya 2013 compression - Nuke > performance. > > Maya lets you chose exr compression now. So you can chose zip. I > don't remember if zips is an option in 2013 though. it has everything > else pretty much though. > > > Randy S. Little > http://www.rslittle.com <http://reel.rslittle.com> > http://www.imdb.com/name/nm2325729/ > > > > > On Thu, Jan 31, 2013 at 10:10 AM, Deke Kincaid <[email protected]>wrote: > >> The trouble your going to run into is most renderers write out tile based >> EXR files which are extremely slow no matter which compression they use >> inside Nuke. Scanline EXR’s are considerably faster in Nuke(2-5x faster). >> To get nice performance in Nuke your best bet is to have a child process on >> the farm convert them from tile to scanline based EXR files with zip1/zips >> compression as Nathan mentioned. >> >> ----- >> Deke Kincaid >> Creative Specialist >> The Foundry >> Mobile: (310) 883 4313 >> Tel: (310) 399 4555 - Fax: (310) 450 4516 >> >> The Foundry Visionmongers Ltd. >> Registered in England and Wales No: 4642027 >> >> >> On Sat, Jan 26, 2013 at 1:24 AM, letin210 < >> [email protected]> wrote: >> >>> ** >>> Hi There, >>> >>> Sorry if there is already a post similar to this one here, but I'd like >>> to go through more and find out the best exr multipass layer compression >>> out from maya. >>> >>> Did anyone worked with exr rendered out from maya 2013?Is ZIP >>> compressione the best way to get the best read perfomance in Nuke? >>> >>> Our EXR includes 7 to 10 passes. >>> >>> Thanks in advance! >>> Letin. >>> >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > > ------------------------------ > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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