Glitch with several loose edges when changing Mask Modifier threshold #77750

New Issue

Cody Winchester · 2020-06-11T08:47:36+02:00

Cody Winchester commented

2020-06-11 08:47:36 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.59

Blender Version
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-06-08 15:55, hash: 9f7d84b656
Worked: 2.83

Short description of error
The mask modifier in the 2.90 daily build appears visually while changing the threshold value.
A lot of random edges will appear on the masked object randomly.
These edges don't seem to have an effect on the rest of the modifier stack so it may just be visual.

Additional info
In the provided blend file there are 3 objects.

The first object has weights generated with a vertex weight edit modifier and a subsurf modifier before the mask.
The second object has manual weights and a subsurf modifier before the mask.
The third one has manual weights and no modifiers before the mask.

All three objects experience the glitches. This was to test that the glitches are not the result of a combination of modifiers.

Exact steps for others to reproduce the error

Open the provided blend file.
Select one of the objects.
Use the mask threshold value to see the edges glitching as the value changes.
Mask Modifier Bug.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.59 **Blender Version** Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-06-08 15:55, hash: `9f7d84b656` Worked: 2.83 **Short description of error** The mask modifier in the 2.90 daily build appears visually while changing the threshold value. A lot of random edges will appear on the masked object randomly. These edges don't seem to have an effect on the rest of the modifier stack so it may just be visual. **Additional info** In the provided blend file there are 3 objects. The first object has weights generated with a vertex weight edit modifier and a subsurf modifier before the mask. The second object has manual weights and a subsurf modifier before the mask. The third one has manual weights and no modifiers before the mask. All three objects experience the glitches. This was to test that the glitches are not the result of a combination of modifiers. **Exact steps for others to reproduce the error** 1. Open the provided blend file. 2. Select one of the objects. 3. Use the mask threshold value to see the edges glitching as the value changes. [Mask Modifier Bug.blend](https://archive.blender.org/developer/F8608019/Mask_Modifier_Bug.blend)

Cody Winchester commented

2020-06-11 08:47:36 +02:00

Added subscriber: @CodyWinchester

Jacques Lucke commented

2020-06-11 11:52:26 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2020-06-11 11:52:26 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Jacques Lucke commented

2020-06-11 11:52:26 +02:00

Looks like you forgot to upload the .blend file.

Cody Winchester commented

2020-06-11 12:41:22 +02:00

In #77750#951314, @JacquesLucke wrote:
Looks like you forgot to upload the .blend file.

Thanks. Fixed that.

> In #77750#951314, @JacquesLucke wrote: > Looks like you forgot to upload the .blend file. Thanks. Fixed that.

Jacques Lucke commented

2020-06-11 12:47:40 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Germano Cavalcante commented

2020-06-12 16:48:05 +02:00

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

Germano Cavalcante changed title from ~~Mask Modifier visually glitching when changing threshold~~ to Glitch with several loose edges when changing Mask Modifier threshold

2020-06-12 16:50:34 +02:00

Germano Cavalcante commented

2020-06-12 16:50:58 +02:00

Added subscriber: @mano-wii

Jeroen Bakker self-assigned this 2020-06-15 09:36:22 +02:00

blender-admin commented

2020-06-15 15:25:25 +02:00

This issue was referenced by ab8a691431

This issue was referenced by ab8a6914317f6fc287fbe176df0b7ef202468d26

Jeroen Bakker commented

2020-06-16 08:03:08 +02:00

Changed status from 'Confirmed' to: 'Resolved'