Collision does not work on objects with a particle system #102580

New Issue

Alexey · 2022-11-17T13:18:56+01:00

Alexey commented

2022-11-17 13:18:56 +01:00

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 522.30

Blender Version
Broken: version: 3.5.0 Alpha, branch: master, commit date: 2022-11-17 00:30, hash: 9a09adb7af
Worked: (newest version of Blender that worked as expected)

Short description of error

Exact steps for others to reproduce the error
GNParticle.blend
Press Play Animation

**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 522.30 **Blender Version** Broken: version: 3.5.0 Alpha, branch: master, commit date: 2022-11-17 00:30, hash: `9a09adb7af` Worked: (newest version of Blender that worked as expected) **Short description of error** ![image.png](https://archive.blender.org/developer/F13936000/image.png) **Exact steps for others to reproduce the error** [GNParticle.blend](https://archive.blender.org/developer/F13936005/GNParticle.blend) Press Play Animation

Alexey commented

2022-11-17 13:18:56 +01:00

Added subscriber: @pseudoua

Philipp Oeser commented

2022-11-17 15:18:45 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-11-17 15:18:45 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2022-11-17 15:18:45 +01:00

Eh, there is nothing to collide with?

It is working in this file:
GNParticle._repro.blend

Does this work for you?

Eh, there is nothing to collide with? It is working in this file: [GNParticle._repro.blend](https://archive.blender.org/developer/F13936623/GNParticle._repro.blend) Does this work for you?

Philipp Oeser commented

2022-11-17 15:21:47 +01:00

Or this one (if you want the collision the other way around:
GNParticle._repro2.blend

Or this one (if you want the collision the other way around: [GNParticle._repro2.blend](https://archive.blender.org/developer/F13936653/GNParticle._repro2.blend)

Alexey commented

2022-11-17 16:55:09 +01:00

This comment was removed by @pseudoua

*This comment was removed by @pseudoua*

Alexey commented

2022-11-17 17:02:29 +01:00

In #102580#1447513, @lichtwerk wrote:
Or this one (if you want the collision the other way around:
GNParticle._repro2.blend

Phisics Type: None
For Blender, probably the only right decision. Started 3 projects today. In each one I ran into some glitches and switched to the next one. As a result for the whole day, nothing at all today managed to collect anything working at least somehow (((((((((((((((

...Even it would seem elementary. Particles spread along a curve. No, and then in that configuration for some reason it does not work!

Maybe competitors planted pests in the team? A lot, well, incredibly many bugs

> In #102580#1447513, @lichtwerk wrote: > Or this one (if you want the collision the other way around: > [GNParticle._repro2.blend](https://archive.blender.org/developer/F13936653/GNParticle._repro2.blend) Phisics Type: None For Blender, probably the only right decision. Started 3 projects today. In each one I ran into some glitches and switched to the next one. As a result for the whole day, nothing at all today managed to collect anything working at least somehow ((((((((((((((( ...Even it would seem elementary. Particles spread along a curve. No, and then in that configuration for some reason it does not work! Maybe competitors planted pests in the team? A lot, well, incredibly many bugs

Philipp Oeser commented

2022-11-18 08:46:47 +01:00

Particles spread along a curve. No

Is this a bug you mean? Have you reported this?

Phisics Type: None

In that example it is not needed, it really depends on what should collide with what here...
It is just not clear what you want to achieve

incredibly many bugs

The particle system is End Of Life lie I said, another thing to look at might be Geometry Nodes, a lot can already be achieved there.

> Particles spread along a curve. No Is this a bug you mean? Have you reported this? > Phisics Type: None In that example it is not needed, it really depends on what should collide with what here... It is just not clear what you want to achieve > incredibly many bugs The particle system is End Of Life lie I said, another thing to look at might be Geometry Nodes, a lot can already be achieved there.

Alexey commented

2022-11-18 09:54:55 +01:00

ОК. Thank you for your attention.
Watching research Cartesian Caramel on the part system from GN
I will look for solutions in this direction

ОК. Thank you for your attention. Watching research **Cartesian Caramel** on the part system from GN I will look for solutions in this direction

Philipp Oeser commented

2022-11-18 10:05:54 +01:00

Still not clear if you want to continue getting collisions to work with the old particle system (they do work in most cases)?
You woud have to specify exactly what is not working for you or what you want to achieve.

Or do you want me to close this report?

Still not clear if you want to continue getting collisions to work with the old particle system (they do work in most cases)? You woud have to specify exactly what is not working for you or what you want to achieve. Or do you want me to close this report?

Alexey commented

2022-11-18 11:24:56 +01:00

It was this report that was dedicated to the fact that the emitter object of a particle system cannot be a collision object for them at the same time.
Solving this problem, I had to create another object and copy its geometry. But at the same time, a new object with collision passes through itself some part of the particles (quite a large one), while the attribute Collision Permeability=0.
Trying to figure out why, I came across the fact that I can’t see the mesh (without turning off the particle system), which is not critical in principle, but it’s rather inconvenient and illogical when the mode is to show the mesh (Geometry Wireframes of Overlays)

It was this report that was dedicated to the fact that the emitter object of a particle system cannot be a collision object for them at the same time. Solving this problem, I had to create another object and copy its geometry. But at the same time, a new object with collision passes through itself some part of the particles (quite a large one), while the attribute Collision Permeability=0. Trying to figure out why, I came across the fact that I can’t see the mesh (without turning off the particle system), which is not critical in principle, but it’s rather inconvenient and illogical when the mode is to show the mesh (Geometry Wireframes of Overlays)

Philipp Oeser commented

2022-12-14 14:53:16 +01:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Pratik Borhade commented

2023-04-27 05:26:53 +02:00

It was this report that was dedicated to the fact that the emitter object of a particle system cannot be a collision object for them at the same time.

This looks more of a request for support than a bug.
Since the particle system is EOL so I'll close this report for now.
The issue reported here is a request for modified/improved behavior and not a bug in current behavior. Closing as this bug tracker is only for bugs and errors.

For user requests and feedback, please use other channels: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

For more information on why this isn't considered a bug, visit: https://wiki.blender.org/wiki/Reference/Not_a_bug

Feel free to comment if there is misunderstanding.

> It was this report that was dedicated to the fact that the emitter object of a particle system cannot be a collision object for them at the same time. This looks more of a request for support than a bug. Since the particle system is EOL so I'll close this report for now. The issue reported here is a request for modified/improved behavior and not a bug in current behavior. Closing as this bug tracker is only for bugs and errors. For user requests and feedback, please use other channels: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests For more information on why this isn't considered a bug, visit: https://wiki.blender.org/wiki/Reference/Not_a_bug Feel free to comment if there is misunderstanding.

Pratik Borhade closed this issue

2023-04-27 05:26:55 +02:00

Blender Bot added

and removed

labels 2023-04-27 05:26:56 +02:00

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