Alt-Drag (multi-editing) fails for HSV color buttons #73277

New Issue

Luciano Laudani · 2020-01-20T22:07:58+01:00

Luciano Laudani commented

2020-01-20 22:07:58 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.28

Blender Version
Broken: version: 2.83 (sub 1), branch: master, commit date: 2020-01-18 19:00, hash: c2e62c1292
Seems to be a long-lasting issue, as even Blender 2.81a shows the same behaviour.

Short description of error
Pretty much the title.
Trying to assign an object color through the Object Properties tab (Viewport Display > Color) to multiple Objects doesn't work, neither by picking the Color on the Color Wheel, nor by moving the HSV sliders, while Alt-Clicking. Only the last selected Object will update.
However:

If sliders are set to RGB, editing them will correctly affect all selected Objects.
The Alpha slider, which is shared between all three Color Wheel modes, works as intended and affects all selected Objects.

From the Info console I've noticed a tuple is set everytime a Color is picked from the Color Wheel, but doesn't show anything when using the HSV Sliders.
Moving the the RGB and Alpha sliders correctly sets each Object's property to the selected value.

Exact steps for others to reproduce the error

Open Blender, default startup file
Add>Mesh - Select any kind of Mesh Object (have at least 2 items in the scene, or more)
Go to the Shading Panel in the top right and Select "Object" down the Color section, to see Object Colors in the viewport
Press A to select All Objects, or alternatively, select them one by one by Shift+Right Click
Go to Object Properties > Viewport Display > Color
Hold ALT either while clicking on the Color Wheel or while moving the HSV Sliders. Only the last selected Object will update.
While holding ALT, try moving the Alpha slider. All selected Object will update.
In the Color Wheel, select the RGB tab. While holding ALT, try moving the R, G or B slider. All selected Object will update.

Here's a quick demonstration:

2020-01-20_22-01-14.mp4

And the Info panel readings:
2020-01-20_22-02-46.mp4

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.28 **Blender Version** Broken: version: 2.83 (sub 1), branch: master, commit date: 2020-01-18 19:00, hash: `c2e62c1292` Seems to be a long-lasting issue, as even Blender 2.81a shows the same behaviour. **Short description of error** Pretty much the title. Trying to assign an object color through the Object Properties tab (Viewport Display > Color) to multiple Objects doesn't work, neither by picking the Color on the Color Wheel, nor by moving the HSV sliders, while Alt-Clicking. Only the last selected Object will update. However: - If sliders are set to RGB, editing them will correctly affect all selected Objects. - The Alpha slider, which is shared between all three Color Wheel modes, works as intended and affects all selected Objects. From the Info console I've noticed a tuple is set everytime a Color is picked from the Color Wheel, but doesn't show anything when using the HSV Sliders. Moving the the RGB and Alpha sliders correctly sets each Object's property to the selected value. **Exact steps for others to reproduce the error** - Open Blender, default startup file - Add>Mesh - Select any kind of Mesh Object (have at least 2 items in the scene, or more) - Go to the Shading Panel in the top right and Select "Object" down the Color section, to see Object Colors in the viewport - Press A to select All Objects, or alternatively, select them one by one by Shift+Right Click - Go to Object Properties > Viewport Display > Color - Hold ALT either while clicking on the Color Wheel or while moving the HSV Sliders. Only the last selected Object will update. - While holding ALT, try moving the Alpha slider. All selected Object will update. - In the Color Wheel, select the RGB tab. While holding ALT, try moving the R, G or B slider. All selected Object will update. Here's a quick demonstration: [2020-01-20_22-01-14.mp4](https://archive.blender.org/developer/F8290579/2020-01-20_22-01-14.mp4) And the Info panel readings: [2020-01-20_22-02-46.mp4](https://archive.blender.org/developer/F8290582/2020-01-20_22-02-46.mp4)

Luciano Laudani commented

2020-01-20 22:07:58 +01:00

Added subscriber: @Luxary

William Reynish commented

2020-01-21 09:33:53 +01:00

Added subscribers: @ideasman42, @WilliamReynish

William Reynish commented

2020-01-21 09:33:53 +01:00

Not sure if this is meant to be supported. @ideasman42 can you confirm?

Campbell Barton commented

2020-01-21 14:25:02 +01:00

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

Campbell Barton commented

2020-01-21 14:25:02 +01:00

Alt-Drag uses button properties to change the same properties of other objects, however HSV buttons adjust the color indirectly (the buttons themselves are not properties).

Marking this as a TODO.

Alt-Drag uses button properties to change the same properties of other objects, however HSV buttons adjust the color indirectly (the buttons themselves are not properties). Marking this as a TODO.

Campbell Barton changed title from ~~Alt+Click on Viewport Display > Color doesn't apply to all Selected Objects - except for RGB and Alpha (transparency) sliders~~ to Alt-Drag (multi-editing) fails for HSV color buttons

2020-01-21 14:26:45 +01:00

Luciano Laudani commented

2020-01-21 15:02:19 +01:00

Would it be too disruptive to add an extra property layer like

bpy.data.objects["Cube"].color.hsv[0] = 1

on top of the already existing .color- [ ] property for compatibility reasons?

I don't think there's currently a supported way or function to convert HSV into RGB values as Blender does it under the hood.
Making it more explicit would help for operations that make use of the HSV values which are more intuitive (e.g. desaturating one or more objects):

bpy.data.objects["Cube"].color.hsv[1] -= 0.2

but I don't really know about the implications of it, so it's just an innocent suggestion.

Would it be too disruptive to add an extra property layer like ``` bpy.data.objects["Cube"].color.hsv[0] = 1 ``` on top of the already existing .color- [ ] property for compatibility reasons? I don't think there's currently a supported way or function to convert HSV into RGB values as Blender does it under the hood. Making it more explicit would help for operations that make use of the HSV values which are more intuitive (e.g. desaturating one or more objects): ``` bpy.data.objects["Cube"].color.hsv[1] -= 0.2 ``` but I don't really know about the implications of it, so it's just an innocent suggestion.

Campbell Barton commented

2020-01-22 18:34:57 +01:00

It's not practical to add sub-properties to arrays, and while adding a second HSV property would work - it would need to be applied everywhere.

I'd prefer to see if we can use the color button that opens this the selector and use it for updating all others.

It's not practical to add sub-properties to arrays, and while adding a second HSV property would work - it would need to be applied everywhere. I'd prefer to see if we can use the color button that opens this the selector and use it for updating all others.

Loïc DAUTRY commented

2020-09-20 10:10:37 +02:00

Added subscriber: @L0Lock

Loïc DAUTRY commented

2020-09-20 10:10:37 +02:00

May I add that HEX codes don't support ALT either, it could be nice to have this too.

Philipp Oeser removed the

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Alt-Drag (multi-editing) fails for HSV color buttons #73277