Weight paint expands far from brush radius to another vertexes (regression) #73280

New Issue

Vyacheslav Kobozev · 2020-01-21T03:30:22+01:00

2020-01-21 03:30:22 +01:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.20

Blender Version
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-19 22:44, hash: 81b7f8efaf
2,81a and 2.83 broken too
Worked: 2.79

Short description of error
Brush paint very far from it`s radius. Try it yourself with this file
weightpaint radius.blend
2020-01-21_05-04-30.mp4

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.20 **Blender Version** Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-19 22:44, hash: `81b7f8efaf` 2,81a and 2.83 broken too Worked: 2.79 **Short description of error** Brush paint very far from it`s radius. Try it yourself with this file [weightpaint radius.blend](https://archive.blender.org/developer/F8291056/weightpaint_radius.blend) [2020-01-21_05-04-30.mp4](https://archive.blender.org/developer/F8291049/2020-01-21_05-04-30.mp4)

Vyacheslav Kobozev commented

2020-01-21 03:30:22 +01:00

Added subscriber: @Vyach

Philipp Oeser commented

2020-01-21 09:53:04 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-01-21 09:53:04 +01:00

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

Philipp Oeser commented

2020-01-21 09:53:04 +01:00

Can confirm, checking...

Philipp Oeser self-assigned this 2020-01-21 09:58:14 +01:00

Philipp Oeser commented

2020-01-21 09:58:14 +01:00

This comment was removed by @lichtwerk

*This comment was removed by @lichtwerk*

Philipp Oeser commented

2020-01-21 10:15:08 +01:00

This comment was removed by @lichtwerk

*This comment was removed by @lichtwerk*

Philipp Oeser commented

2020-01-21 10:48:31 +01:00

Something very specific to this scene even, behaves normally when with the exact same object in a fresh scene

Philipp Oeser commented

2020-01-21 13:04:02 +01:00

In this particular scene if I open the file, leave the Radius at 45px, I end up with StrokeCache->radius of radius 0.241306
If I make a fresh scene with the same object, and use the default weightpaint brush (which I set to 45px as well), I end up with StrokeCache->radius of radius 0.050200 [much smaller]
(This is all with the exact same view etc.)

Seems like this is tied to UNIFIED_PAINT_SIZE, if I just execute the following here, everything starts to behave "normally"

bpy.data.scenes['Scene Main'].tool_settings.unified_paint_settings.use_unified_size = False

turning this OFF can also be done in the sidebar:

Turns out it uses UnifiedPaintSettings->unprojected_radius for one and Brush->unprojected_radius for the other.
Not sure why these are not the same if it is actually the same Radius set in px? Seems like a bug to me...

In this particular scene if I open the file, leave the Radius at 45px, I end up with `StrokeCache->radius` of radius `0.241306` If I make a fresh scene with the same object, and use the default weightpaint brush (which I set to 45px as well), I end up with `StrokeCache->radius` of radius `0.050200` [much smaller] (This is all with the exact same view etc.) Seems like this is tied to UNIFIED_PAINT_SIZE, if I just execute the following here, everything starts to behave "normally" ``` bpy.data.scenes['Scene Main'].tool_settings.unified_paint_settings.use_unified_size = False ``` turning this OFF can also be done in the sidebar: ![image.png](https://archive.blender.org/developer/F8291876/image.png) Turns out it uses `UnifiedPaintSettings->unprojected_radius` for one and `Brush->unprojected_radius` for the other. Not sure why these are not the same if it is actually the same Radius set in px? Seems like a bug to me...

Philipp Oeser removed their assignment 2020-01-21 13:10:25 +01:00

Vyacheslav Kobozev commented

2020-01-23 06:38:12 +01:00

The same problem for vertex paint brush size. It takes global size, but brush circle have local size.

Vyacheslav Kobozev commented

2020-01-27 16:24:13 +01:00

additional info.
Gradient use global weight setting but do not show this weight in the top panel or tool panel.
it is only available in context pop-over
2020-01-27_18-19-51.mp4

additional info. Gradient use global weight setting but do not show this weight in the top panel or tool panel. it is only available in context pop-over [2020-01-27_18-19-51.mp4](https://archive.blender.org/developer/F8305146/2020-01-27_18-19-51.mp4)

Pablo Dobarro commented

2020-02-04 23:57:46 +01:00

Added subscriber: @PabloDobarro

Pablo Dobarro commented

2020-02-04 23:57:46 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Pablo Dobarro closed this issue

2020-02-04 23:57:46 +01:00

Pablo Dobarro self-assigned this 2020-02-04 23:57:46 +01:00

Pablo Dobarro commented

2020-02-04 23:57:46 +01:00

I tested the attached file and I can't reproduce in the latest master. I think this was fixed in be691105c2 in January 24, 3 days after @lichtwerk confirmed the issue.
2020-02-04 23-58-18.mp4

I tested the attached file and I can't reproduce in the latest master. I think this was fixed in be691105c2ad in January 24, 3 days after @lichtwerk confirmed the issue. [2020-02-04 23-58-18.mp4](https://archive.blender.org/developer/F8321832/2020-02-04_23-58-18.mp4)

Vyacheslav Kobozev commented

2020-02-05 20:37:11 +01:00

@PabloDobarro
yep, it seems it fixed.
I can only reproduce it with this file, until sculpt brush radius and status not changed.

So if someone will find this bug again: just change sculpt-brush radius and switch on-off globar radius to get rid of wrong connection.

2020-02-05_22-33-05.mp4

@PabloDobarro yep, it seems it fixed. I can only reproduce it with this file, until sculpt brush radius and status not changed. So if someone will find this bug again: just change sculpt-brush radius and switch on-off globar radius to get rid of wrong connection. [2020-02-05_22-33-05.mp4](https://archive.blender.org/developer/F8323808/2020-02-05_22-33-05.mp4)

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Weight paint expands far from brush radius to another vertexes (regression) #73280