Subdivide method "Straight Cut" not working when N-Gons enabled #72050

New Issue

Karja Krähwald · 2019-11-29T20:33:38+01:00

Karja Krähwald commented

2019-11-29 20:33:38 +01:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 980/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 425.31

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: 26bd5ebd42
Worked: (optional)

Short description of error
Subdivide in Edit mode: Quad Corner Type "Straight Cut" not working if "Create N-Gons" is enabled, falls back to "Inner Vert".

Exact steps for others to reproduce the error

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 980/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 425.31 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: `26bd5ebd42` Worked: (optional) **Short description of error** Subdivide in Edit mode: Quad Corner Type "Straight Cut" not working if "Create N-Gons" is enabled, falls back to "Inner Vert". **Exact steps for others to reproduce the error** ![Subdivide Bug Straight Cut.jpg](https://archive.blender.org/developer/F8179100/Subdivide_Bug_Straight_Cut.jpg)

Karja Krähwald commented

2019-11-29 20:33:38 +01:00

Added subscriber: @karja

Germano Cavalcante commented

2019-12-02 18:01:39 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2019-12-02 18:01:39 +01:00

I can confirm.
For some reason this option only works when Create N-Gons is disabled.
I think it should be the other way around since Straight Cut is the only option that creates N-Gons on the subdividided face.

(that behavior was introduced in 3875461a)

I can confirm. For some reason this option only works when `Create N-Gons` is disabled. I think it should be the other way around since `Straight Cut` is the only option that creates N-Gons on the subdividided face. (that behavior was introduced in 3875461a)

Sybren A. Stüvel commented

2020-01-20 16:06:59 +01:00

Added subscriber: @dr.sybren

Sybren A. Stüvel commented

2020-01-20 16:06:59 +01:00

'Straight Cut' is actually documented as creating N-Gons. However, the 'Create N-Gons' option is documented as:

Quad/Tri Mode: Forces subdivide to create triangles or quads instead of n-gons (see examples below). This mode doesn’t allow the use of Straight Cut on quad corners.

This is probably the source of the bug: the checkbox is documented as the opposite ("force quad/tris" instead of "allow Ngons"), causing confusion.

'Straight Cut' is actually [documented as creating N-Gons](https://docs.blender.org/manual/en/dev/modeling/meshes/editing/subdividing/subdivide.html#options). However, the 'Create N-Gons' option is documented as: > **Quad/Tri Mode**: Forces subdivide to create triangles or quads instead of n-gons (see examples below). This mode doesn’t allow the use of Straight Cut on quad corners. This is probably the source of the bug: the checkbox is documented as the opposite ("force quad/tris" instead of "allow Ngons"), causing confusion.

Sybren A. Stüvel changed title from ~~Subdivide method "Straight Cut" not working~~ to Subdivide method "Straight Cut" not working when N-Gons enabled

2020-01-20 16:10:00 +01:00

blender-admin commented

2020-01-20 16:11:00 +01:00

This issue was referenced by dae033801b

This issue was referenced by dae033801b8c98bcac5a09ba3bf77868b7204540

Sybren A. Stüvel self-assigned this 2020-01-20 16:17:44 +01:00

Sybren A. Stüvel commented

2020-01-20 16:30:34 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Sybren A. Stüvel closed this issue

2020-01-20 16:30:34 +01:00

Thomas Dinges added this to the 2.82 milestone 2023-02-08 16:41:38 +01:00

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Subdivide method "Straight Cut" not working when N-Gons enabled #72050