Eevee AOV passes have inacurate colour and semi-transparent alpha channels that are set to 0.9844 instead of 1 #85261
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Reference: blender/blender#85261
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System Information
Operating system: macOS 11.1 / Windows 10
Graphics card: AMD Radeon Pro 5500M 4 GB / GTX 1050ti
Blender Version
Broken: Blender 2.92.0 Beta, February 01, 00:13:03-
a9b53daf23
Worked: NA
Short description of error
Eevee's AOV passes do not seem to deliver accurate colour or alpha channels when compared to (what should be) equal output from the combined channel. Alpha channels seem to specifically be limited to 0.9844 where they should be 1.
Material setup
Viewing the render of the combined pass (note alpha channel value of 1 at the bottom of the viewer)
Viewing the render of the cube pass (note alpha channel value of 0.9844 at the bottom of the viewer)
This has also been noted by this StackExchange user using a ColorRamp instead of an emission shader, this can be replicated with EXRs output from Blender and read into Nuke.
Exact steps for others to reproduce the error
Blend file is attached! Eevee AOV problem.blend
Added subscriber: @Shrinks99
Eevee AOV passes have inacurate colour and alpha channelsto Eevee AOV passes have inacurate colour and semi-transparent alpha channels that are set to 0.9844 instead of 1Added subscriber: @Jeroen-Bakker
Looks like a missing sample count. (eg divide by 65 samples in stead of 64).
Added subscriber: @lichtwerk
Changed status from 'Needs Triage' to: 'Confirmed'
Guess this should be High prio.
Fix incoming.
This issue was referenced by
85fe12071a
Added subscriber: @geocentric_wage
Changed status from 'Confirmed' to: 'Resolved'