Bevel modifier still pinching with arc miter #98142

New Issue

tempdevnova · 2022-05-15T15:45:14+02:00

tempdevnova commented

2022-05-15 15:45:14 +02:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.07

Blender Version
Broken: version: 3.3.0 Alpha, branch: master{F13075856}, commit date: 2022-05-12 20:58, hash: 906b9f55af
Worked: (newest version of Blender that worked as expected)

Short description of error
There is still a pinching effect when using the arc option in miter inner or miter outer.

Exact steps for others to reproduce the error
Test files:
Miter inner:
untitled.blend

It's definetely more subtle than in the 3.0 version but the issue still persists

Probably related to:
#97940
#95916

Thank you and have a nice day!

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.07 **Blender Version** Broken: version: 3.3.0 Alpha, branch: master{[F13075856](https://archive.blender.org/developer/F13075856/untitled.blend)}, commit date: 2022-05-12 20:58, hash: `906b9f55af` Worked: (newest version of Blender that worked as expected) **Short description of error** There is still a pinching effect when using the arc option in miter inner or miter outer. **Exact steps for others to reproduce the error** Test files: Miter inner: [untitled.blend](https://archive.blender.org/developer/F13075859/untitled.blend) ![untitled.png](https://archive.blender.org/developer/F13075861/untitled.png) It's definetely more subtle than in the 3.0 version but the issue still persists Probably related to: #97940 #95916 Thank you and have a nice day!

tempdevnova commented

2022-05-15 15:45:14 +02:00

Added subscriber: @tempdevnova

Germano Cavalcante commented

2022-05-18 17:17:28 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-05-18 17:17:28 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2022-05-18 17:17:28 +02:00

I may be misunderstanding, but in both files apparently only the Miter inner affects the result.
So how can this problem be different from the one mentioned in #97940 (Bevel profile incorrect when using arc for inner miter) ?

I may be misunderstanding, but in both files apparently only the `Miter inner` affects the result. So how can this problem be different from the one mentioned in #97940 (Bevel profile incorrect when using arc for inner miter) ?

tempdevnova changed title from ~~Bevel modifier still pinching with arc miter~~ to Bevel modifier still distorted with arc miter

2022-05-18 17:28:42 +02:00

tempdevnova commented

2022-05-18 17:31:17 +02:00

I may be misunderstanding, but in both files apparently only the Miter inner affects the result. Sorry my bad will update.

`I may be misunderstanding, but in both files apparently only the Miter inner affects the result.` Sorry my bad will update.

tempdevnova changed title from ~~Bevel modifier still distorted with arc miter~~ to Bevel modifier still pinching with arc miter

2022-05-18 17:37:31 +02:00

tempdevnova commented

2022-05-18 17:40:47 +02:00

So how can this problem be different from the one mentioned in #97940: Bevel profile incorrect when using arc for inner miter In #97940 the issue is that the Bevel overshoots for high profile values. In this case the profile value is set at standard 0.5 but there are still some slight pinching, which is visible in the shading. It looks like something is pulling on the Bevel corner, which looks like denting. What I expect to see is that the Bevel corner has perfectly smooth geometry (for a lack for better words), which in some cases with tricky geometry may be hard to achieve but in this case with the default cube should absolutely be possible.

`So how can this problem be different from the one mentioned in #97940: Bevel profile incorrect when using arc for inner miter` In #97940 the issue is that the Bevel overshoots for high profile values. In this case the profile value is set at standard 0.5 but there are still some slight pinching, which is visible in the shading. It looks like something is pulling on the Bevel corner, which looks like denting. What I expect to see is that the Bevel corner has perfectly smooth geometry (for a lack for better words), which in some cases with tricky geometry may be hard to achieve but in this case with the default cube should absolutely be possible.

Germano Cavalcante commented

2022-05-19 17:55:22 +02:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Germano Cavalcante commented

2022-05-19 17:55:22 +02:00

Added subscriber: @howardt

Germano Cavalcante commented

2022-05-19 17:55:22 +02:00

Whether the default values, low or high, I still think it can be merged into the same report #97940 (Bevel profile incorrect when using arc for inner miter).
I'm not sure if we need a new report for the case of the value 0.5.
@howardt, as a bevel expert, any thoughts on keeping 2 reports? (We still haven't even confirmed if the inter miter's algorithm is really incorrect).

Whether the default values, low or high, I still think it can be merged into the same report #97940 (Bevel profile incorrect when using arc for inner miter). I'm not sure if we need a new report for the case of the value `0.5`. @howardt, as a bevel expert, any thoughts on keeping 2 reports? (We still haven't even confirmed if the inter miter's algorithm is really incorrect).

Howard Trickey commented

2022-05-19 18:34:44 +02:00

Yes, you can combine them.

Germano Cavalcante commented

2022-05-19 20:15:39 +02:00

Closed as duplicate of #97940

Germano Cavalcante closed this issue

2022-05-19 20:15:39 +02:00

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Bevel modifier still pinching with arc miter #98142