Color Picker tool shift color value slider and RGB values incorrect #85982

Closed
opened 2021-02-25 12:39:43 +01:00 by Piar · 7 comments

System Information
Operating system:
Windows 10 x64
Graphics card:
Asus GTX 1050ti

Blender Version

Broken: (example: 2.93.0 Alpha, master, 2018-02-25)
Worked: 2.91.2

Short description of error
Color Picker tool shift color value slider and RGB values incorrect

Exact steps for others to reproduce the error
When using Color Picker tool with ColorRamp in Shader Editor
when entering values HSV H = 0.000 S = 0.000 V = 0.500 color value slider set up ~80% though it should 50%. If you click on the tab RGB we see values 0.500 Instead of ~ 0.730, because the gamma correction method should be applied in RGB mode.

blenderBUG.png

**System Information** Operating system: Windows 10 x64 Graphics card: Asus GTX 1050ti **Blender Version** Broken: (example: 2.93.0 Alpha, master, 2018-02-25) Worked: 2.91.2 **Short description of error** Color Picker tool shift color value slider and RGB values incorrect **Exact steps for others to reproduce the error** When using Color Picker tool with ColorRamp in Shader Editor when entering values HSV H = 0.000 S = 0.000 V = 0.500 color value slider set up ~80% though it should 50%. If you click on the tab RGB we see values 0.500 Instead of ~ 0.730, because the gamma correction method should be applied in RGB mode. ![blenderBUG.png](https://archive.blender.org/developer/F9838278/blenderBUG.png)
Author

Added subscriber: @piar7777

Added subscriber: @piar7777
Member

Added subscriber: @filedescriptor

Added subscriber: @filedescriptor
Member

I can reproduce this although I am not sure this is a bug. It seems to be wrong. But it could be that the code is working correctly.

EDIT: This works in 2.91.2 so it's a regression.

I can reproduce this ~~although I am not sure this is a bug. It seems to be wrong. But it could be that the code is working correctly.~~ EDIT: This works in 2.91.2 so it's a regression.
Member

Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'

Added subscriber: @rjg

Added subscriber: @rjg

This is not a bug since HSV is selected in scene linear in Blender 2.92 since commit f193b1afb3. Middle gray should therefore not be at 0.5.

This is not a bug since HSV is selected in scene linear in Blender 2.92 since commit f193b1afb3. Middle gray should therefore not be at 0.5.

Closed as duplicate of #83974

Closed as duplicate of #83974
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Reference: blender/blender#85982
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