When a still is saved to "Mplay Snapshot" from Qt5, the color visibly changes. Here's screenshots where both Octane and Mplay are set to ACES sRGB, ACES REC2020 and ACES RAW.
Only RAW looks 1 to 1 in color. The other profiles have clear visible change in color. Please advise. Is there some gamma conversion taking place that needs to be set somewhere?
2021.1.4.2 - IPR Qt5 and MPlay color discrepancies
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Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.
All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
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2021.1.4.2 - IPR Qt5 and MPlay color discrepancies
by luminouspowerhouse » Thu May 05, 2022 5:52 pm
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- luminouspowerhouse
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Re: 2021.1.4.2 - IPR Qt5 and MPlay color discrepancies
by juanjgon » Thu May 05, 2022 5:58 pm
It depends on your OCIO and color correction configuration, but probably you need to disable all the MPlay color correction options and set its gamma to 1.0 to let it work in linear mode. If MPlay has some kind of gamma or color correction enabled, you are going to double correct your images.
Thanks,
-Juanjo
Thanks,
-Juanjo
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juanjgon - Octane Plugin Developer
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Re: 2021.1.4.2 - IPR Qt5 and MPlay color discrepancies
by luminouspowerhouse » Thu May 05, 2022 8:48 pm
By "disabling color correction" do you mean disabling / removing ACES from Houdini in ENV file?
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Re: 2021.1.4.2 - IPR Qt5 and MPlay color discrepancies
by juanjgon » Thu May 05, 2022 9:50 pm
Nope, it means that MPlay must be configured as "Lut and Gamma" with the gamma set to 1.0
-Juanjo
-Juanjo
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