[23.10] Brightness mismatch on first render

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1. That the issue has not already been disclosed
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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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kabakZ
Licensed Customer
Posts: 48
Joined: Sat Sep 28, 2019 1:23 am

Brightness is slightly reduced in the first render after activation of Octane Server.

1. Start Blender, start Octane Server, load any project
2. Render it for the first time with data loading, save the output
3. Render it one more time or multiple times.

The very first render will be slightly less brighter than the others. After reducing GI Clamp by 0.5, the following renders look identical to the first one with reduced brightness.
linograndiotoy
OctaneRender Team
Posts: 1355
Joined: Thu Feb 01, 2018 7:10 pm

That sounds very odd.
I'm always getting the same result when rendering.
kabakZ
Licensed Customer
Posts: 48
Joined: Sat Sep 28, 2019 1:23 am

It could be a side effect of OCIO and/or denoiser, I used both and got different brightness on first render.
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