Rigidbody doesn't work when you change motion blur steps in eevee #80388

New Issue

Deniz Bazan · 2020-09-02T17:46:15+02:00

Deniz Bazan commented

2020-09-02 17:46:15 +02:00

System Information
Operating system:debian buster
Graphics card:nvidia gtx 1070

Blender Version
Broken: (example: 2.90, 0330d1df29c0, master, 2020-08-31, as found on the splash screen)
Worked: Never

Short description of error
Rendering unbaked rigidbody simulation in eevee with motion blur with 2 or more steps will cause simulation to stop working.

Exact steps for others to reproduce the error
#80388.blend

Open file
Check if rigidbody simulation works
Render image
Check if rigidbody simulation works
It doesn't work anymore.

**System Information** Operating system:debian buster Graphics card:nvidia gtx 1070 **Blender Version** Broken: (example: 2.90, 0330d1df29c0, master, 2020-08-31, as found on the splash screen) Worked: Never **Short description of error** Rendering unbaked rigidbody simulation in eevee with motion blur with 2 or more steps will cause simulation to stop working. **Exact steps for others to reproduce the error** [#80388.blend](https://archive.blender.org/developer/F8855865/T80388.blend) - Open file - Check if rigidbody simulation works - Render image - Check if rigidbody simulation works It doesn't work anymore.

Deniz Bazan commented

2020-09-02 17:46:15 +02:00

Added subscriber: @DenizBazan

Richard Antalik commented

2020-09-08 04:46:13 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-09-08 04:46:13 +02:00

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

Richard Antalik commented

2020-09-08 04:46:13 +02:00

Can you check if this happens when you bake rigidbody simulation? For rendering, simulations must be baked.

Deniz Bazan commented

2020-09-08 09:40:31 +02:00

There is no problem if I bake the simulation.But if i make Simulation I don’t make baking every time or at the beginning. If I’m finished than I make baking.The problem is not baking.If I render the scene without baking I can’t make any more simulation all rigidboy frozen this the Problem I think.

Richard Antalik commented

2020-09-09 01:26:05 +02:00

Sorry this was misunderstanding on my part. I thought that problem was wrong motion blur with more steps. But yes this shouldn't happen I would say

Richard Antalik changed title from ~~rigidbody doesn't work when you change motion blur steps in eevee~~ to Rigidbody doesn't work when you change motion blur steps in eevee

2020-09-09 01:33:03 +02:00

Richard Antalik commented

2020-09-09 01:33:03 +02:00

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

Jacques Lucke commented

2020-09-14 12:40:53 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2020-09-14 12:40:53 +02:00

I found that the rigid body cache is not actually reset during rendering, but when the render window is closed. As long as it is kept open, the cache remains valid. When the window is closed BKE_object_eval_ptcache_reset is called by the depsgraph.

I found that the rigid body cache is not actually reset during rendering, but when the render window is closed. As long as it is kept open, the cache remains valid. When the window is closed `BKE_object_eval_ptcache_reset` is called by the depsgraph.

Philipp Oeser removed the

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Rigidbody doesn't work when you change motion blur steps in eevee #80388