Page MenuHome
Create Task
Maniphest T100542

Geometry nodes: Emitting particles not recognized changes on Vertex groups
Closed, DuplicatePublic
Actions

Description

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.15

Blender Version
Broken: version: 3.3.0 Beta, branch: master, commit date: 2022-08-18 18:04, hash: rB6a4f4810f38b
Worked: (newest version of Blender that worked as expected)

Short description of error
Generate Vertex groups from geometry nodes and use it for ParticlesSystem dencity map, Use Modifier Stack chek ON, Emitting particles not recognized changes on Vertex groups. Emitting particles not recognized changes on Vertex groups when playing animation

Exact steps for others to reproduce the error

  • Open .blend file
  • Play animation

T100542.blend14 MBDownload

Related Objects

Event Timeline

Roman Yu (ramoncarlos) created this task.Aug 21 2022, 8:07 PM
Pratik Borhade (PratikPB2123) changed the task status from Needs Triage to Confirmed.Aug 22 2022, 7:40 AM
Pratik Borhade (PratikPB2123) added projects: Geometry Nodes, Nodes & Physics.
Pratik Borhade (PratikPB2123) added a subscriber: Pratik Borhade (PratikPB2123).
Pratik Borhade (PratikPB2123) renamed this task from ParticleSystem BUG to Geometry nodes: Emitting particles not recognized changes on Vertex groups.Aug 22 2022, 7:43 AM
Pratik Borhade (PratikPB2123) updated the task description. (Show Details)
Pratik Borhade (PratikPB2123) updated the task description. (Show Details)Aug 22 2022, 7:47 AM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).Aug 23 2022, 10:46 AM

I believe this is the same limitation as T77219: Dynamic vertex groups (Dynamic Paint, Weight Proximity modifier, Geometry Nodes, ...) do not update density of particles in viewport display or T73650: Particle system density factor doesn't adhere to vertex weight proximity modifier or T92418: Particle system does not deal well with the weights that are generated/updated dynamically.

So this is not an issue of geometry nodes but the legacy particle/hair system.

Will merge with T77219.

Philipp Oeser (lichtwerk) closed this task as a duplicate of T77219: Dynamic vertex groups (Dynamic Paint, Weight Proximity modifier, Geometry Nodes, ...) do not update density of particles in viewport display.Aug 23 2022, 10:47 AM