Bevel modifier and materials "bleed" over faces #76199

New Issue

Matthias Pieroth · 2020-04-28T21:38:07+02:00

Matthias Pieroth commented

2020-04-28 21:38:07 +02:00

System Information
Operating system: windows 10

Blender Version
from 2.8. Tried with 2.82, 2.83, 2.90a

Short description of error
When using a bevel modifier for an object that has more than on material, it can happen (perhaps only with NGons), that the material bleeds into a different face.

Object mode:

Edit mode:

Bevel modifier

The blend file is attached.

hs_modeling2.blend

**System Information** Operating system: windows 10 **Blender Version** from 2.8. Tried with 2.82, 2.83, 2.90a **Short description of error** When using a bevel modifier for an object that has more than on material, it can happen (perhaps only with NGons), that the material bleeds into a different face. **Object mode:** ![image.png](https://archive.blender.org/developer/F8499584/image.png) **Edit mode:** ![image.png](https://archive.blender.org/developer/F8499586/image.png) **Bevel modifier** ![image.png](https://archive.blender.org/developer/F8499588/image.png) The blend file is attached. [hs_modeling2.blend](https://archive.blender.org/developer/F8499590/hs_modeling2.blend)

Matthias Pieroth commented

2020-04-28 21:38:07 +02:00

Added subscriber: @Jayanam

Ankit Meel commented

2020-04-29 08:59:42 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2020-04-29 08:59:42 +02:00

Is there a plane in there? It could be this:

or maybe I should file a new bug report.. lightBleeding.blend

Is there a plane in there? It could be this: ![image.png](https://archive.blender.org/developer/F8500606/image.png) or maybe I should file a new bug report.. [lightBleeding.blend](https://archive.blender.org/developer/F8500616/lightBleeding.blend)

Matthias Pieroth commented

2020-04-29 14:02:38 +02:00

@ankitm : No, there is no plane in it, I attached the blend file, it is one object.

Richard Antalik commented

2020-04-29 21:00:48 +02:00

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

Brecht Van Lommel commented

2020-05-01 18:20:51 +02:00

Added subscribers: @HooglyBoogly, @howardt, @brecht

Brecht Van Lommel commented

2020-05-01 18:20:51 +02:00

@howardt @HooglyBoogly I guess this is the same as #60302 (bevel modifier material problem).

I guess this is more a known issue than a bug at this point, but prioritizing the choice based on material slot would be good.

@howardt @HooglyBoogly I guess this is the same as #60302 (bevel modifier material problem). I guess this is more a known issue than a bug at this point, but prioritizing the choice based on material slot would be good.

Hans Goudey commented

2020-05-01 22:54:29 +02:00

Have you implemented the idea from the other task @howardt? If not I'll look at it. I don't want to duplicate work though.

Howard Trickey commented

2020-05-01 23:28:29 +02:00

I have not. I'm spending all my time on Boolean these days.

At least one person in a thread about Bevel did not like the idea of using material slots to disambiguate. I had another (sorting) algorithm in mind but when I looked at it last, it got a lot more complicated. I was probably trying to bite off more than I should have. Feel free to have a go at this, if you want, Hans. I can review any code you may write.

I have not. I'm spending all my time on Boolean these days. At least one person in a thread about Bevel did not like the idea of using material slots to disambiguate. I had another (sorting) algorithm in mind but when I looked at it last, it got a lot more complicated. I was probably trying to bite off more than I should have. Feel free to have a go at this, if you want, Hans. I can review any code you may write.

blender-admin commented

2020-06-26 12:42:20 +02:00

This issue was referenced by e3a420c477

This issue was referenced by e3a420c4773a1d1a79c21f15137066d4411d3574

Howard Trickey commented

2020-06-26 12:43:34 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Howard Trickey closed this issue

2020-06-26 12:43:34 +02:00

Howard Trickey self-assigned this 2020-06-26 12:43:34 +02:00

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Bevel modifier and materials "bleed" over faces #76199