Could not find layer Color in view Right in .exr

[norru]

If I attempt to read the attached EXR I get the following error message:

"Could not find layer Color in view Right in /tmp/cant_read_in_natron.exr
cant_read_in_natron.exr.zip

The EXR is perfectly valid.

I am trying to migrate out of Nuke and this is one of my showstoppers.

In the meantime I need to keep backwards compatibility with existing projects. I have hundreds of thousands of existing images with this layout so converting them is not an option.

$ exrheader /tmp/cant_read_in_natron.exr

file /tmp/cant_read_in_natron.exr:

file format version: 2, flags 0x0
channels (type chlist):
    B, 16-bit floating-point, sampling 1 1
    G, 16-bit floating-point, sampling 1 1
    R, 16-bit floating-point, sampling 1 1
    right.B, 16-bit floating-point, sampling 1 1
    right.G, 16-bit floating-point, sampling 1 1
    right.R, 16-bit floating-point, sampling 1 1
compression (type compression): zip, individual scanlines
dataWindow (type box2i): (0 0) - (2047 1555)
displayWindow (type box2i): (0 0) - (2047 1555)
lineOrder (type lineOrder): increasing y
multiView (type stringvector):
    "left"
    "right"
nuke/full_layer_names (type int): 0
nuke/node_hash (type string): "572d0fb078ee559a"
nuke/version (type string): "11.0v3"
pixelAspectRatio (type float): 1
screenWindowCenter (type v2f): (0 0)
screenWindowWidth (type float): 1
type (type string): "scanlineimage"
version (type int): 1

Ubuntu 18.04

Natron version 2.3.14 Release.
Natron, an open source compositing software
Copyright (C) 2013-2018 INRIA and Alexandre Gauthier-Foichat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

See the Natron website for more information on this software.
This software was compiled from the source code branch tags/2.3.14 at version 5bbf5ed using GNU C++ version 7.3.0 with OpenMP 4.5 targetting Intel x86-64 for Linux.
The bundled openfx-io plugins were compiled from version 761faea.
The bundled openfx-misc plugins were compiled from version 3c007bf.
The bundled openfx-arena plugins were compiled from version 38e8e3a.
The bundled openfx-gmic plugins were compiled from version 096fe05.

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[rodlie]

Works fine here. Please provide more information (Natron version/build/OS etc).

[norru]

Added information to the OP.

Do you see both Left and Right views correctly after loading? I can only see the Left one.

[norru]

Here's the project and a screenshot.

cant_read_in_natron.zip

[rodlie]

The image has Color (red) and right (blue) layers.

Could you test the latest RC release and see if you have the same issue?
https://github.com/NatronGitHub/Natron/releases/download/v2.3.15-rc.9/Natron-RB-2.3-201909090540-0b1ab28-64-no-installer.tar.xz

[norru]

The image has Color (red) and right (blue) layers.

Image should have left and right view, where the left view is the default (hero), and an anonymous layer with R, G, B channels in.

Happy to test RC!

Did you set up Multiview?

[rodlie]

I didn't setup multiview, If I change view to Right I get the same error message.

Seems to be an old issue? https://discuss.pixls.us/t/issue-with-stereo-exr-multi-view/8258/4

[norru]

Tried the RC version, no changes.

[norru]

Seems to be an old issue? https://discuss.pixls.us/t/issue-with-stereo-exr-multi-view/8258/4

Yes, it is the same issue. The OP of that issue also seems to have created the file in Nuke.

[rodlie]

I did a quick test on older versions using https://github.com/openexr/openexr-images/raw/master/MultiView/Balls.exr

• 2.1.9 - ok
• 2.2.3 - ok
• 2.2.4 - ok
• 2.2.5 - ok
• 2.2.6 - ok
• 2.2.7 and beyond - fail

NatronGitHub/openfx-io@Natron-2.2.6...Natron-2.2.7

[devernay]

I would really like to have that bug fixed for 2.3.15. It's very probably an issue with the ReadOIIO plugin as you pointed out, and specifically these two commits : NatronGitHub/openfx-io@963e1a8 NatronGitHub/openfx-io@5de9b29

[rodlie]

I though that as well, but it's actually NatronGitHub/openfx-io@79ac654

I tested NatronGitHub/openfx-io@963e1a8 against Natron 2.2.7 and it works, going to NatronGitHub/openfx-io@79ac654 breaks.

I'm currently not able to test against openfx-io master on my machine (I think my oiio2 install is broken or something).

[devernay]

Will test with and without this commit, and will build a Linux version for testing by @norru

[norru]

Sounds good, please let me know when I can download a code drop to test.

[devernay]

Should be fixed by NatronGitHub/openfx-io@af69a63 and NatronGitHub/openfx-io@f31d7b6

@norru can you please test with the latest Linux RC?

[devernay]

@norru any feedback? is it fixed in 2.3.15RC22?

[devernay]

fixed by NatronGitHub/openfx-io@af69a63 and NatronGitHub/openfx-io@f31d7b6

[norru]

Sorry if I didn't reply earlier, I've long moved to a different project.