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Edit Mode takes 2 seconds to select or deselect each vertice
Closed, InvalidPublic

Description

System Information
Operating system: macOS Mojave 10.14.2
Graphics card: Radeon Pro 560X 4096 MB
Intel UHD Graphics 630 1536 MB

Blender Version
Broken:
2.80, 1b839e85e142, blender2.8, 2019-04-25
Download file is blender-2.80-1b839e85e142-OSX-10.9-x86_64

Short description of error

It takes 2 seconds to select or deselect vertices, edges or faces in Edit Mode. It makes it almost impossible to edit the model...
The model is not very complex, at 200k vertices.

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

Enter Edit Mode and try to make changes to the model.

Event Timeline

Jacques Lucke (JacquesLucke) lowered the priority of this task from 90 to 50.Apr 29 2019, 12:22 PM

Interestingly, a lot of time is spent in BM_loops_calc_normal_vcos.
I'm not exactly sure if this is a bug, but I don't think it should be like this...

Please confirm that next build has improved on this. On the other hand, it seems that the undo system is doing a lot of things here.

I tried on today's build and it's slow the same way...

Germano Cavalcante (mano-wii) changed the task status from Confirmed to Needs Information from User.Jan 30 2020, 1:35 PM

I cannot reproduce the problem in any version I test.

This must be a driver issue.
But I notice a small difference in performance when transforming the vertices. (Which is already addressed in T73360)

@Gabriel Moro (gabrielmoro), can you test with one of the latest builds?
https://builder.blender.org/download/

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks for the report. If the problem persists please open a new report with the required information.