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Maniphest T86732

Geometry nodes do not show wireframe instances in solid mode
Confirmed, NormalPublicBUG
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Description

System Information
Operating system: Windows-8.1-6.3.9600-SP0 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-18 21:29, hash: rB36deb8a48ef2

Short description of error
If I instance wireframe (only edges) object with GN, I don`t see instances in Solid mode (except 1st).
Wireframe mode is okay.

GN Stack wire.blend104 KBDownload

Related Objects

Event Timeline

Vyacheslav (hitrpr) created this task.Fri, Mar 19, 11:02 AM
Charlie Jolly (charlie) added projects: Nodes, Geometry Nodes.Fri, Mar 19, 9:42 PM
Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Mon, Mar 22, 9:22 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".
Germano Cavalcante (mano-wii) edited projects, added Nodes & Physics; removed Nodes.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

I can confirm.
If you add any other modifier (like the array), the wireframe appears proving that it is wire geometry.

Vyacheslav (hitrpr) added a comment.Tue, Mar 23, 7:30 AM

@Germano Cavalcante (mano-wii) next modifier converting instances to unite geometry, that is why it become visible again

Zijun Zhou (Eary) mentioned this in T86828: Line Primitive doesn't get instanced.Tue, Mar 23, 9:32 PM
Germano Cavalcante (mano-wii) merged a task: T86828: Line Primitive doesn't get instanced.Fri, Mar 26, 7:08 PM
Germano Cavalcante (mano-wii) added subscribers: Miro Horváth (dreamak), Zijun Zhou (Eary).
Himanshi Kalra (calra) claimed this task.Fri, Apr 2, 2:23 PM
Himanshi Kalra (calra) added a comment.Fri, Apr 2, 5:06 PM

It is happening if the mesh contains only edges.
E.g
Replacing the Line Primitive with Circle in the blend file of T86828, we observe the same behavior.
Change the "Fill type" of Circle to Ngon or triangle, the mesh appears.

Vyacheslav (hitrpr) added a comment.EditedFri, Apr 2, 5:39 PM

@Himanshi Kalra (calra) exactly!
It is only about edge appearance from solid. And another special case. So it looks like object with GN inherits main mode (solid) and ignores wire mode for case with wire only.