Hidden geometry in editmode gets visible again after visiting weightpaint/sculptmode [visiting sculptmode again afterwards can be a workaround] #93936

New Issue

Enric López Amorós · 2021-12-10T12:02:34+01:00

2021-12-10 12:02:34 +01:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1660 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.13

Blender Version
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2021-12-09 23:43, hash: dffd032bc9
It does happen in oficial stable blender 3.0 version too

Short description of error
When joining two objects into one, the mesh from the object that has joined the active one will not stay hidden in edit mode when changing into weight paint mode.

Exact steps for others to reproduce the error
From default blender scene:
Step 1: Create new mesh, I will create a UV Sphere
Step 2: Move it to the side to see both objects in scene
Step 3: Join the two objects (I did it with Ctrl + J) having the cube as the active one.
Step 4: Enter weight painting mode
Step 5: Enter edit mode
Step 6: Select the sphere and hide it in edit mode.
Step 7: Return to weight paint mode
Step 8: Return to edit mode and the sphere unhides itself (Notice this doesn't happen between object and edit mode

hide_mesh_bug_10-12-2021.blend
From this file follow from step 4.

Thank you for your time!

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1660 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.13 **Blender Version** Broken: version: 3.1.0 Alpha, branch: master, commit date: 2021-12-09 23:43, hash: `dffd032bc9` It does happen in oficial stable blender 3.0 version too **Short description of error** When joining two objects into one, the mesh from the object that has joined the active one will not stay hidden in edit mode when changing into weight paint mode. **Exact steps for others to reproduce the error** From default blender scene: Step 1: Create new mesh, I will create a UV Sphere Step 2: Move it to the side to see both objects in scene Step 3: Join the two objects (I did it with Ctrl + J) having the cube as the active one. Step 4: Enter weight painting mode Step 5: Enter edit mode Step 6: Select the sphere and hide it in edit mode. Step 7: Return to weight paint mode Step 8: Return to edit mode and the sphere unhides itself (Notice this doesn't happen between object and edit mode [hide_mesh_bug_10-12-2021.blend](https://archive.blender.org/developer/F12726812/hide_mesh_bug_10-12-2021.blend) From this file follow from step 4. Thank you for your time!

Enric López Amorós commented

2021-12-10 12:02:34 +01:00

Added subscriber: @NarDarkk

Philipp Oeser commented

2021-12-10 12:31:00 +01:00

Added subscriber: @lichtwerk

Philipp Oeser self-assigned this 2021-12-10 12:31:00 +01:00

Philipp Oeser commented

2021-12-10 12:31:00 +01:00

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

Philipp Oeser commented

2021-12-10 12:31:00 +01:00

Can confirm, will check

Philipp Oeser commented

2021-12-10 14:47:17 +01:00

There is some mesh setting that has influence on this (cannot figure out what though - yet).
See this file, it has one mesh that is working properly (you can hide stuff, go into weightpaint, go back to editmode, stuff is still hidden) and the other mesh is getting full visibility after going back to editmode :/):
#93936.blend

More notes: cube from my startup.blend from 2.93 works, cube from my startup.blend in 3.0 doesnt, loading my startup.blend from 2.93 into 3.0 will also make it work

There is some mesh setting that has influence on this (cannot figure out what though - yet). See this file, it has one mesh that is working properly (you can hide stuff, go into weightpaint, go back to editmode, stuff is still hidden) and the other mesh is getting full visibility after going back to editmode :/): [#93936.blend](https://archive.blender.org/developer/F12727196/T93936.blend) More notes: cube from my startup.blend from 2.93 works, cube from my startup.blend in 3.0 doesnt, loading my startup.blend from 2.93 into 3.0 will also make it work

Philipp Oeser removed their assignment 2021-12-10 15:14:07 +01:00

Philipp Oeser commented

2021-12-10 15:14:07 +01:00

Added subscriber: @PabloDobarro

Philipp Oeser commented

2021-12-10 15:14:07 +01:00

Bah, I knew it sounded familiar, but it has taken me looong to figure it out:
The workaround is to enter sculptmode once then do your hiding in editmode and all should be fine...

The visibily sync issue with sculpting actually has a bit of history -- and apparently is still not solved fully :/

#80771 (Mode switching hides vertices in Edit mode (Weight paint / Sculpt mode --> Edit mode))
#72700 (Sculpt-mode's "Box Hide + Undo" not syncing in edit mode but instead causes edges to disappear)
#80274 (Visibility not correctly synced between Sculpt & Edit Mode)
#74780 (Parts of the mesh disappear in Sculpt and in Edit mode but not in objec)
#82709 (Faces with no vertex bug.)

Not my playground, @PabloDobarro : are you willing to take a look?

Bah, I knew it sounded familiar, but it has taken me looong to figure it out: The workaround is to enter sculptmode once then do your hiding in editmode and all should be fine... The visibily sync issue with sculpting actually has a bit of history -- and apparently is still not solved fully :/ - #80771 (Mode switching hides vertices in Edit mode (Weight paint / Sculpt mode --> Edit mode)) - #72700 (Sculpt-mode's "Box Hide + Undo" not syncing in edit mode but instead causes edges to disappear) - #80274 (Visibility not correctly synced between Sculpt & Edit Mode) - #74780 (Parts of the mesh disappear in Sculpt and in Edit mode but not in objec) - #82709 (Faces with no vertex bug.) Not my playground, @PabloDobarro : are you willing to take a look?

Philipp Oeser changed title from ~~Weight paint hidden mesh bug~~ to Hidden geometry in editmode gets visible again after visiting weightpaint/sculptmode [visiting sculptmode again afterwards can be a workaround]

2021-12-10 15:19:28 +01:00

Pratik Borhade commented

2022-10-08 11:31:28 +02:00

Added subscriber: @PratikPB2123