Looptools relax tool dosen't work well on edge loops with odd number of vertices #105360

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Sean-Campbell-2 · 2024-06-20T17:31:51+02:00

Sean-Campbell-2 commented

2024-06-20 17:31:51 +02:00

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 552.22

Blender Version
Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: e1743a0317bc
Worked: (newest version of Blender that worked as expected)

Addon Information
Name: LoopTools (4, 7, 7)
Author: Bart Crouch, Vladimir Spivak (cwolf3d)

Short description of error
The relax tool in looptools will deform edge loops unevenly when there odd numbers of vertices in the edge loop.

Exact steps for others to reproduce the error

Create circle mesh with 11 vertices.
Enter edit mode and relax the circle.

**System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 552.22 **Blender Version** Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: `e1743a0317bc` Worked: (newest version of Blender that worked as expected) **Addon Information** Name: LoopTools (4, 7, 7) Author: Bart Crouch, Vladimir Spivak (cwolf3d) **Short description of error** The relax tool in looptools will deform edge loops unevenly when there odd numbers of vertices in the edge loop. **Exact steps for others to reproduce the error** 1. Create circle mesh with 11 vertices. 2. Enter edit mode and relax the circle.

Sean-Campbell-2 added the

labels 2024-06-20 17:31:51 +02:00

Cedric Steiert commented

2024-06-21 13:11:42 +02:00

Here are my findings from a quick check (blender 4.1):

Circle with 11 verticies, loop tool relax with cubic interpolation (looks weird):

Circle with 11 verticies, loop tool relax with linear interpolation (looks alright):

Circle with 12 verticies, loop tool relax with cubic interpolation (looks alright):

Circle with 12 verticies, loop tool relax with linear interpolation (looks alright, but a bit smaller):

Here are my findings from a quick check (blender 4.1): Circle with 11 verticies, loop tool relax with cubic interpolation (looks weird): <img width="500" alt="image" src="attachments/96b33085-29a4-4c59-a9f5-88726d5c4493"> Circle with 11 verticies, loop tool relax with linear interpolation (looks alright): <img width="500" alt="image" src="attachments/642e9e5e-17a4-4944-9197-9b6e4b4feea9"> Circle with 12 verticies, loop tool relax with cubic interpolation (looks alright): <img width="500" alt="image" src="attachments/baada1df-0c64-416e-9450-050e35cd0a81"> Circle with 12 verticies, loop tool relax with linear interpolation (looks alright, but a bit smaller): <img width="500" alt="image" src="attachments/9126fd5e-71a7-49a0-9aac-528a14419fce">

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