Sounds like Mantra is generating tiled files.
-Nathan
From: Michael Garrett
Sent: Friday, May 03, 2013 1:37 PM
To: Nuke user discussion
Subject: [Nuke-users] EXR file size Mantra vs Nuke re-render
I just got some multichannel Zip1 compressed 16 bit half EXR files rendered
with Mantra which were incredibly slow to read off the network.
I re-rendered them like for like in Nuke 7.0v6 to see if there was a
performance gain. What I found is that the size of each frame went from
~170MB/frame to ~43MB/frame. That's definitely rendering all channels (about
36 individual channels), 16-bit half, Zip1 compressed in both source and
destination images.
I know that Nuke has not yet rolled in the multi part image optimisation that's
in EXR 2.0, I'm certainly looking forward to that. But I'd be interested to kow
howit could be possible that the file size has shrunk so much in the instance I
described above.
Cheers,
Michael
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