Maniphest T54597

Bridge Edge tool causes unintended results with a specific .blend file
Closed, Archived
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Assigned To
Germano Cavalcante (mano-wii)
Authored By
Victolabs Victolabs (Victolabs)
Apr 14 2018, 6:59 AM
Tags
  • BF Blender
  • Modeling
Subscribers
Campbell Barton (campbellbarton)
Germano Cavalcante (mano-wii)
Philipp Oeser (lichtwerk)
Victolabs Victolabs (Victolabs)

Description

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

Blender Version
Broken: 2.79b

Blender File

Black_Lamp_2.blend585 KBDownload

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)

Related Objects

Event Timeline

Victolabs Victolabs (Victolabs) created this task.Apr 14 2018, 6:59 AM
Victolabs Victolabs (Victolabs) updated the task description.
Philipp Oeser (lichtwerk) claimed this task.Apr 16 2018, 3:31 PM
Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 50.
Philipp Oeser (lichtwerk) added subscribers: Campbell Barton (campbellbarton), Philipp Oeser (lichtwerk).

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)

@Campbell Barton (campbellbarton) : 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 (lichtwerk) mentioned this in T54996: The bridge tool fails in a situation with multiple rows of faces facing each other.May 14 2018, 2:13 PM
Philipp Oeser (lichtwerk) removed Philipp Oeser (lichtwerk) as the assignee of this task.Nov 12 2019, 4:21 PM
Dalai Felinto (dfelinto) added a project: Tracker Curfew.Dec 23 2019, 4:36 PM
Germano Cavalcante (mano-wii) closed this task as Archived.Jan 20 2020, 11:56 PM
Germano Cavalcante (mano-wii) claimed this task.
Germano Cavalcante (mano-wii) removed a project: Tracker Curfew.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

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

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.