Multires: Geometry error when using creases #76306

New Issue

TheRedWaxPolice · 2020-05-01T19:05:17+02:00

TheRedWaxPolice commented

2020-05-01 19:05:17 +02:00

System Information
Operating system: Win 10

Blender Version
Broken: Both 2.83 and 2.90
Worked: 2.82

Short description of error
Using creases with multires generates weird geometry when you uncheck "Use Creases"

Exact steps for others to reproduce the error

Launch Blender
Go into edit mode
Switch to edge mode and select some edges
Add crease to those edges (value 1.00)
Go to object mode or sculpt mode
Add a multires modifier
Subdivide a couple of times
Uncheck "Use Creases"
The mesh will have some kind of "spikes"

See:

2020-05-01_17-54-32.mp4

**System Information** Operating system: Win 10 **Blender Version** Broken: Both 2.83 and 2.90 Worked: 2.82 **Short description of error** Using creases with multires generates weird geometry when you uncheck "Use Creases" **Exact steps for others to reproduce the error** - Launch Blender - Go into edit mode - Switch to edge mode and select some edges - Add crease to those edges (value 1.00) - Go to object mode or sculpt mode - Add a multires modifier - Subdivide a couple of times - Uncheck "Use Creases" - The mesh will have some kind of "spikes" See: [2020-05-01_17-54-32.mp4](https://archive.blender.org/developer/F8506199/2020-05-01_17-54-32.mp4)

TheRedWaxPolice commented

2020-05-01 19:05:17 +02:00

Added subscriber: @TheRedWaxPolice

Regnas commented

2020-05-01 23:26:14 +02:00

Added subscriber: @Regnas

Regnas commented

2020-05-01 23:26:14 +02:00

Confirmed!

Ankit Meel commented

2020-05-02 12:04:07 +02:00

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

Ankit Meel commented

2020-05-02 12:04:07 +02:00

Added subscribers: @ankitm, @PabloDobarro

Sergey Sharybin commented

2020-05-04 17:45:23 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2020-05-04 17:45:23 +02:00

This option affects the limit surface, and multires is storing displacement relative to it. So think the only viable solution for now is to disable this option when there is multires data (similar to quality and mode).

blender-admin commented

2020-05-12 03:46:51 +02:00

This issue was referenced by ce35cfd208

This issue was referenced by ce35cfd208ac8020f592a2c379e86b5b0f49a35f

Pablo Dobarro commented

2020-05-13 02:53:45 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Pablo Dobarro closed this issue

2020-05-13 02:53:45 +02:00

Pablo Dobarro self-assigned this 2020-05-13 02:53:45 +02:00

TheRedWaxPolice commented

2020-05-14 16:03:57 +02:00

@Sergey I still can reproduce this issue, even after this fix ce35cfd208
To reproduce:

Launch Blender
Go to edit mode
Select some edges and add crease (value 1.00)
Switch to sculpt mode
Add a multires modifier and subdivide a couple of times
Go back to edit mode and set the "Mean Crease" value to something below 1.00
Switch back to sculpt mode
Error
2020-05-14_04-47-40.mp4

@Sergey I still can reproduce this issue, even after this fix ce35cfd208 To reproduce: - Launch Blender - Go to edit mode - Select some edges and add crease (value 1.00) - Switch to sculpt mode - Add a multires modifier and subdivide a couple of times - Go back to edit mode and set the "Mean Crease" value to something below 1.00 - Switch back to sculpt mode - Error [2020-05-14_04-47-40.mp4](https://archive.blender.org/developer/F8534335/2020-05-14_04-47-40.mp4)

Sergey Sharybin commented

2020-05-14 16:17:40 +02:00

Don't change crease then ;)

There will always be a way to confuse the system in one way or another.

Don't change crease then ;) There will always be a way to confuse the system in one way or another.

TheRedWaxPolice commented

2020-05-14 18:03:35 +02:00

@Sergey LOL
Anyway, I noticed that this issue is more severe when you start with the crease value at 1.00. So if I start with a value below 1.00 and then subdivide, I can go back to edit mode and set it to 1.00 and sometimes it works fine. Weird

@Sergey LOL Anyway, I noticed that this issue is more severe when you start with the crease value at 1.00. So if I start with a value below 1.00 and then subdivide, I can go back to edit mode and set it to 1.00 and sometimes it works fine. Weird

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Multires: Geometry error when using creases #76306