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Maniphest T85210

"Join Geometry" node causes cycles to only display one of the geometries
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Description

Bug ex2.blend750 KBDownload
System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.09

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-01-28 22:25, hash: rB92b0803f35a7
Worked: (newest version of Blender that worked as expected)

Short description of error
Cycles not displaying all geometry when using a "Join Geometry" node, neither in rendered viewport nor in render
eevee is working all right

Exact steps for others to reproduce the error
open the file Bug_ex2.blend, set one of the viewports to rendered in cycles
compare solid viewport to rendered viewport, some geometry is not displayed
now swap the inputs of the Join Geometry node,

Related Objects

Event Timeline

Mathias Eimann (ME__) created this task.Jan 29 2021, 7:17 PM
Mathias Eimann (ME__) added a comment.Jan 29 2021, 7:27 PM

https://developer.blender.org/P1928

Hans Goudey (HooglyBoogly) added a project: Geometry Nodes.Jan 29 2021, 7:29 PM
Mathias Eimann (ME__) added a comment.Jan 30 2021, 10:23 AM

i have another issue that might be related.
using the file

Bug_ex3.blend3 MBDownload
one can see that Cycles stops working correctly if two objects use the same geometry nodes tree cycles does not display both objects, instead one of them, and samples the whole time in viewport

explanation
suzanne and plane have a Geometry Nodes modifer called "Geometry Nodes.002"
restricting one of the objects viewport visibility causes cycles to preview viewport correctly again, however when both are visible it behaves weird
it does not work in f12 render either

Hans Goudey (HooglyBoogly) renamed this task from "Join Geometry" node causes cycles to only display one of the geometrys to "Join Geometry" node causes cycles to only display one of the geometries .Jan 31 2021, 4:39 AM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Feb 1 2021, 4:52 PM
Philipp Oeser (lichtwerk) added projects: Render & Cycles, Cycles.
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Can confirm the first issue reported here.

i have another issue that might be related...

Please report that separately.

Jacques Lucke (JacquesLucke) added a subscriber: Jacques Lucke (JacquesLucke).Feb 11 2021, 1:00 PM

I also get the issue reported in T84899 in this file..

Dalai Felinto (dfelinto) mentioned this in T86931: Join Node remaining issues.Mar 25 2021, 11:49 AM
Jacques Lucke (JacquesLucke) closed this task as Resolved.Apr 12 2021, 1:47 PM
Jacques Lucke (JacquesLucke) claimed this task.

I cannot reproduce this anymore, looks like it is fixed.