UV Unwrapping Glitched #106841

New Issue

Erickson · 2023-04-12T03:44:01+02:00

Erickson commented

2023-04-12 03:44:01 +02:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 528.24

Blender Version
Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: 1be25cfff18b
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]
My model's UV Unwrap keeps messing up and clumping vertices around the 4 corners of the 2D viewport. It appears that the unwrap is making multiple faces a huge square and are not forming proper UV islands.

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
The problem can simply be recreated by selecting my model (Mainbody V2), Going into Edit Mode, and clicking 'Unwrap' in the UV editing window. Doing the same thing in Blender Version 3.1 works just fine, and yields proper UV islands.

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 528.24 **Blender Version** Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: `1be25cfff18b` Worked: (newest version of Blender that worked as expected) **Short description of error** [Please fill out a short description of the error here] My model's UV Unwrap keeps messing up and clumping vertices around the 4 corners of the 2D viewport. It appears that the unwrap is making multiple faces a huge square and are not forming proper UV islands. **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] The problem can simply be recreated by selecting my model (Mainbody V2), Going into Edit Mode, and clicking 'Unwrap' in the UV editing window. Doing the same thing in Blender Version 3.1 works just fine, and yields proper UV islands.

Problem file v3_632d.blend

7.6 MiB

Erickson added the

labels 2023-04-12 03:44:02 +02:00

Philipp Oeser commented

2023-04-12 12:52:58 +02:00

Have you tried actually selecting all (or however many you would like to be unwrapped) UVs in the UV Editor prior?

Selection is now taken into acount, see #78394 / c0e4532331.

Have you tried actually selecting all (or however many you would like to be unwrapped) UVs in the UV Editor prior? Selection is now taken into acount, see #78394 / c0e453233132.

Philipp Oeser added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-04-12 12:53:06 +02:00

Erickson commented

2023-04-12 16:22:19 +02:00

The UV unwrap was intended for the entire mesh, so I did select all vertices to be unwrapped.

The first Screenshot shows the messed up UVs. If you look closely they are all there, but most of them have formed into squares that take up the entire 2D Viewport, and I've even moved a few corners to show this. (Note: Trying to unwrap the UVs again doesnt change their position, same with smart UV project. Doing UV > Reset then Unwrapping makes little change to the UVs.)

The Second screenshot shows what the UVs should look like.

The UV unwrap was intended for the entire mesh, so I did select all vertices to be unwrapped. The first Screenshot shows the messed up UVs. If you look closely they are all there, but most of them have formed into squares that take up the entire 2D Viewport, and I've even moved a few corners to show this. (Note: Trying to unwrap the UVs again doesnt change their position, same with smart UV project. Doing UV > Reset then Unwrapping makes little change to the UVs.) The Second screenshot shows what the UVs should look like.

3.5 UV.png

1.0 MiB

3.1 UV.png

1.2 MiB