Cryptomatte issue

Forums: Cryptomatte issue
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Cryptomatte issue

Postby pegot » Wed Mar 27, 2019 5:59 pm

pegot Wed Mar 27, 2019 5:59 pm
Cryptomatte passes don’t seem to render correctly in Octane Blender 2018.1 / 17.6. When I bring the files into After Effects, the Cryptomatte plug in doesn’t detect them.

However, if I take the same Octane Blender file and export scene to ORBX and render in stand alone, the Cryptomatte passes show up fine. See attached screen shots.

Attached is blend file, ORBX export, and rendered EXR files.
Attachments
Cryptomatte-from-OctaneBlender-inAE.png
Cryptomatte-from-OctaneSA-inAE.png
Cryptomatte-Issue.zip
(2.59 MiB) Downloaded 173 times
Win 10
3.7Ghz i9 10900k / 64GB
ASUS STRIX Z490-E
PSU: PowerSpec 850Wd
RTX 3090 Asus Tuff

Network rendering:
Win 10
4.2Ghz i7 7700k / 64GB
AsRock SuperCarrier
PSU: EVGA 1200w
RTX 3080 Ti EVGA Hybrid
RTX 3080 ASUS Tuff
GTX 1080ti SC Black (wc)
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Re: Cryptomatte issue

Postby pegot » Mon Apr 08, 2019 2:15 pm

pegot Mon Apr 08, 2019 2:15 pm
Bump.

Is anyone else having this problem? Has anyone been able to reproduce this issue?
Win 10
3.7Ghz i9 10900k / 64GB
ASUS STRIX Z490-E
PSU: PowerSpec 850Wd
RTX 3090 Asus Tuff

Network rendering:
Win 10
4.2Ghz i7 7700k / 64GB
AsRock SuperCarrier
PSU: EVGA 1200w
RTX 3080 Ti EVGA Hybrid
RTX 3080 ASUS Tuff
GTX 1080ti SC Black (wc)
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Re: Cryptomatte issue

Postby J.C » Tue Apr 09, 2019 1:06 pm

J.C Tue Apr 09, 2019 1:06 pm
I've checked this and this is not working in Blender :/
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
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Re: Cryptomatte issue

Postby linograndiotoy » Tue Apr 09, 2019 1:38 pm

linograndiotoy Tue Apr 09, 2019 1:38 pm
J.C wrote:I've checked this and this is not working in Blender :/


I can confirm that as well.

It has been reported and it will be fixed as soon as possible!

Thanks Pegot and Bartek!
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Re: Cryptomatte issue

Postby DrawFun » Sat Apr 13, 2019 3:41 am

DrawFun Sat Apr 13, 2019 3:41 am
Hi,

Thanks for your report and sorry for the inconvenience.
This is due to the cryptomatte channels are different from the colorful image. They are actually pairs of int and float channels, each giving you a material ID and an amount of coverage. Blender 2.79 cannot recognize such formats so the export fails. As workarounds, we will export render passes(include crypto) as exr via octane sdks to the blender output path.

Cheers,
DrawFun
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Re: Cryptomatte issue

Postby J.C » Sun Apr 14, 2019 1:22 pm

J.C Sun Apr 14, 2019 1:22 pm
Hi DrawFun,

Can you elaborate this workaround? How are we going to use this?

DrawFun wrote:...As workarounds, we will export render passes(include crypto) as exr via octane sdks to the blender output path.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
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Re: Cryptomatte issue

Postby J.C » Sat Jun 01, 2019 10:07 am

J.C Sat Jun 01, 2019 10:07 am
In 17.9 Cryptomatte passes are saved in OpenEXR Multilayer file. As we know these are not being saved correctly and are useless. Correct Crypto passes are created in a separate file.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
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Re: Cryptomatte issue

Postby J.C » Thu Jun 06, 2019 8:07 am

J.C Thu Jun 06, 2019 8:07 am
Empty Cryptomatte files are created when none of the crypromatte passes are selected. Please disable this. This is waste of disk space.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
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