Particle emission from object random direction #89198

Closed
opened 2021-06-16 15:01:49 +02:00 by James · 8 comments

System Information
Operating system: Windows 10
Graphics card: Rtx 3090

Short description of error
The particles in the blend file for a reason i cannot find are going into a random point in the world
Exact steps for others to reproduce the error
This has never happened before and i cant seem to deliberately reproduce the error

Blend file
RTY NUM2.blend
Any plane I place down and add a emitter to, the particles fly in one direction into the horizon.

**System Information** Operating system: Windows 10 Graphics card: Rtx 3090 **Short description of error** The particles in the blend file for a reason i cannot find are going into a random point in the world **Exact steps for others to reproduce the error** This has never happened before and i cant seem to deliberately reproduce the error Blend file [RTY NUM2.blend](https://archive.blender.org/developer/F10175061/RTY_NUM2.blend) Any plane I place down and add a emitter to, the particles fly in one direction into the horizon.
Author

Added subscriber: @hockeyclogs05

Added subscriber: @hockeyclogs05
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Added subscriber: @ankitm

Added subscriber: @ankitm
Member

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

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

Please add a simple blend file that shows the bug and steps to take with the blend file to see the bug.

Please add a *simple* blend file that shows the bug and steps to take with the blend file to see the bug.

Added subscriber: @hal9000

Added subscriber: @hal9000

Hi there,

I think the (hidden!) wind force field is the cause here. I assume the wind was used to model a cloth simulation? It acts with a very high strength towards the observed direction. Hence the particles fly quickly towards the horizon.

Try organizing the force fields for each of your simulations into separate collections and use Effector Collection under Field Weights in the Particle Properties tab - or any apropriate physics related tab.

The documentation seems to be slightly out of date and still references the idea of groups which were replaced by collections recently. Apart from that it is still usefull:
https://docs.blender.org/manual/en/latest/physics/particles/emitter/force_field.html

Note: Similar settings can be adjusted for many kinds of simulations. The particle siumlations above are only an example.1

Best regards!

Hi there, I think the (hidden!) wind force field is the cause here. I assume the wind was used to model a cloth simulation? It acts with a very high strength towards the observed direction. Hence the particles fly quickly towards the horizon. Try organizing the force fields for each of your simulations into separate collections and use `Effector Collection` under `Field Weights` in the `Particle Properties` tab - or any apropriate physics related tab. The documentation seems to be slightly out of date and still references the idea of groups which were replaced by collections recently. Apart from that it is still usefull: https://docs.blender.org/manual/en/latest/physics/particles/emitter/force_field.html Note: Similar settings can be adjusted for many kinds of simulations. The particle siumlations above are only an example.1 Best regards!
Member

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

Changed status from 'Needs User Info' to: 'Archived'
Member

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.
Thanks for checking @hal9000

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information. Thanks for checking @hal9000
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Reference: blender/blender#89198
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