Skin Modifier not applied to Array Modifier Start & End Caps #74598
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Reference: blender/blender#74598
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Skin Modifier not applied to Array Modifier Start & End Caps
System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.97
Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash:
77d23b0bd7
Also tried in 2.83 alpha blender-2.83-fbe81db29a28-windows64, 2.81b and 2.79.
Worked: Not in any Blender version I have access to.
Short description of error
When adding a skin modifier to an array with start and end caps, the skin modifier does not extend around the caps.
Exact steps for others to reproduce the error
Default Blend file - add three planes.
Add array modifier to Plane.
Set array modifier start cap as Plane.001 and end cap as Plane.002 and enable Merge.
Add skin modifier.
Skin Modifier will only be applied to the arrayed object, not the start/end caps, with spears at the joins.
To see expected outcome: Apply array modifier. Remove and re-add Skin modifier.
Example blend file attached with fence model.
Maybe related to #59770 but Blender does not crash, it just doesn't add the skin properly.
Skin - Array End Caps Bug.blend
Added subscriber: @sherbert_lemon
Added subscriber: @mano-wii
Changed status from 'Needs Triage' to: 'Archived'
The problem here is that the skin radius of the caps' vertices are not initialized.
This patch would allow them to be initialized:
P1292: Patch for #74598
But then we would have another problem. You cannot edit the skin radius of the vertices in the caps.
So that would not bring any advantage.
So it seems that there is no simple solution to this. And the code works as designed.