Solidify cause wrong vertex selection in edit mode #82182
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Reference: blender/blender#82182
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System Information
Linux-4.19.0-12-amd64-x86_64-with-debian-10.6 64 Bits
Mesa DRI Intel(R) UHD Graphics 630 (Coffeelake 3x8 GT2) Intel Open Source Technology Center 4.5 (Core Profile) Mesa 18.3.6
Windows 10-10.0.19041 SP0 64Bit
GeForce 9600 GT PCIe SSE2 Nvidia Corporation
Radeon RX550/550 Series ATI Technologies Inc. 4.5.14736 Core Profile Context 20.8.3 27.20.12027.1001
Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-24 14:22, hash:
507ffee6e1Broken: version: 2.83.2, branch: master, commit date: 2020-07-09 05:50, hash:
239fbf7d93Broken: version: 2.90.1, branch: master, commit date: 2020-09-23 06:43, hash:
3e85bb34d0Broken: version: 2.91.0 Beta, branch: master, commit date: 2020-10-24 21:36, hash:
1c653a0315Worked: unknown
Short description of error
In 3d viewport, vertex selection, solid mode, X-Ray off, you cannot predict what you are selecting when using solidify:
Blender is ignoring the X-Ray ("Allow selecting through the items") and is selecting, randomly, occluded items.
Having a very narrow clipping does not mitigate the issue.
Explanation video SelectLight.mp4
Exact steps for others to reproduce the error
#82182.blend
Occluded vertex will be selected
Added subscriber: @Rickyx
Added subscriber: @iss
Changed status from 'Needs Triage' to: 'Needs User Info'
I can't reproduce this.
To be sure we test with same settings, please upload simple .blend file.
Check if this happen when you click on File > Defaults > Load Factory Settings.
Added subscriber: @lichtwerk
For the Linux machine: Mesa is at 20.2.1, maybe you could try upgrading and see if that helps?
The GeForce 9600 GT is not supported anymore (which can be a reason for this failure, https://www.blender.org/download/requirements/)
Here are the blends
I'm using the default setup in the last Debian 10.
I'll investigate if an upgrade of drivers can solve the issue.
Tested on Ubuntu with GeForce GTX 1060 and Nvidia Drivers.
The issue is still present:
SelectUbuntu.mkv
Thank you,
Riccardo
Added subscriber: @ideasman42
Cant redo this in either of the test files.
e78ded8b0f8cf69fea29651df7bc82e5ebf63d7fAMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XTChanged status from 'Needs User Info' to: 'Confirmed'
Added subscriber: @aidankerridge
Testing again, I see the issue now.
The generated geometry is not occluding when selecting.
This is working as intended, although it's possible we might want the geometry to occlude geometry for selection too.
I noticed that the selection results change whether the "on cage" checkbox of the solidify modifier is on or off.