Bridge Edge tool causes unintended results with a specific .blend file #54597

Closed
opened 2018-04-14 06:59:57 +02:00 by Victolabs Victolabs · 6 comments

System Information
http://speccy.piriform.com/results/LN5O5mbIOqwzeUMQVysp6o6

Blender Version
Broken: 2.79b

Blender File

Black_Lamp_2.blend

Short description of error

Attempting to use the Bridge edge tool with the following edges (https:*i.imgur.com/tyKRsir.png) produces the following result (https:*i.imgur.com/Vv6XSrq.png)

Work Around

Move the inner shell (https:*i.imgur.com/tFPfpp8.png) down slightly to produce intended results (https:*i.imgur.com/tTMt30P.png)

(First bug report, sorry if i did anything wrong)

**System Information** http://speccy.piriform.com/results/LN5O5mbIOqwzeUMQVysp6o6 **Blender Version** Broken: 2.79b **Blender File** [Black_Lamp_2.blend](https://archive.blender.org/developer/F2684871/Black_Lamp_2.blend) **Short description of error** Attempting to use the Bridge edge tool with the following edges (https:*i.imgur.com/tyKRsir.png) produces the following result (https:*i.imgur.com/Vv6XSrq.png) **Work Around** Move the inner shell (https:*i.imgur.com/tFPfpp8.png) down slightly to produce intended results (https:*i.imgur.com/tTMt30P.png) (First bug report, sorry if i did anything wrong)

Added subscriber: @Cevox

Added subscriber: @Cevox
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Added subscribers: @ideasman42, @lichtwerk

Added subscribers: @ideasman42, @lichtwerk
Philipp Oeser self-assigned this 2018-04-16 15:31:04 +02:00
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confirmed on first sight, studying bridge_loop_pair now.

There is already a codepath for exactly this case here , and I have something that doesnt reverse the vert order for this report (but this probably breaks elsewhere... will need thorough testing)

@ideasman42 : easy for you? Please go ahead and claim (I'll claim for the time being and assign to you if I dont get it in a reasonable time...)

confirmed on first sight, studying [bridge_loop_pair ](https://developer.blender.org/diffusion/B/browse/master/source/blender/bmesh/operators/bmo_bridge.c;6617818c7a1f5729763aa214866b5d7dc0358f36$143) now. There is already a codepath for exactly this case [here ](https://developer.blender.org/diffusion/B/browse/master/source/blender/bmesh/operators/bmo_bridge.c;6617818c7a1f5729763aa214866b5d7dc0358f36$234), and I have something that doesnt reverse the vert order for this report (but this probably breaks elsewhere... will need thorough testing) @ideasman42 : easy for you? Please go ahead and claim (I'll claim for the time being and assign to you if I dont get it in a reasonable time...)
Philipp Oeser removed their assignment 2019-11-12 16:21:52 +01:00

Added subscriber: @mano-wii

Added subscriber: @mano-wii

Changed status from 'Confirmed' to: 'Archived'

Changed status from 'Confirmed' to: 'Archived'
Germano Cavalcante self-assigned this 2020-01-20 23:56:40 +01:00

The bridge tool always tries to keep the normal consistent.
The mesh normals in the attached file look like this:
image.png

So the bridge tool did its best to maintain the new geometry with consistent normals.
You can get the result by inverting the normals of one of the "shells".

From what I see, this is not a bug, but it works as intended.

The bridge tool always tries to keep the normal consistent. The mesh normals in the attached file look like this: ![image.png](https://archive.blender.org/developer/F8290749/image.png) So the bridge tool did its best to maintain the new geometry with consistent normals. You can get the result by inverting the normals of one of the "shells". From what I see, this is not a bug, but it works as intended.
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Reference: blender/blender#54597
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