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Switch between Wireframe and Solid is slowly?
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Description

System Information
Operating system: windows 10 64
Graphics card: gtx1070

Blender Version
Broken: 2.80 beta, 798d2cadc307, 2019-03-04

In complex scene, switch between Solid and Wireframe mode in normal way is slowly, but you used x-ray is very quickly.

Short description of error

Method First:
1, In a complex scene(my test have 3.8 million face), press z key used pie to switch between wireframe and solid mode, it's will take about three second, very slowly.

Method Second:
1, Enable the wireframe in overlays option, and set the x-ray alpha to zero in shading option;
2, In solid mode, Press Alt +Z to switch between wireframe and solid, you can see it's very quickly, switch is realtime.

Screenshot:
Method First used z with pie:

Method Second used xray with alt+z:

So I think switch between wireframe and solid mode can do some optimization and more quickly, sorry my poor English

Details

Type
Bug

Event Timeline

@Clément Foucault (fclem) My above statement may be wrong. I found it's only happened in the pie operate, if I used shift+Z to switch, it's will be quickly.

Sebastian Parborg (zeddb) lowered the priority of this task from Needs Triage by Developer to Normal.Mar 21 2019, 12:33 PM

@Clément Foucault (fclem) I think we had a similar ticket to this before. IIRC switching with the pie menu or with the viewport buttons does some extra things that doesn't happen with the toggle shortcut.

@Sebastian Parborg (zeddb) I confirm this, shortcut is much more quicker than the pie and icons(3d view header)