Bake of the second particle system after duplication and making it unique makes mess. #67007

New Issue

Vyacheslav Kobozev · 2019-07-15T18:30:58+02:00

2019-07-15 18:30:58 +02:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-14 21:02, hash: 65168825e0
Worked: version: 2.79 (sub 7), branch: blender2.7, commit date: 2019-05-23 08:19, hash: 054dbb833e, type: Release
build date: 24/06/2019, 17:18

Short description of error
If you duplicate particle settings, make them unique, and tune, bake of dynamica will broken.
2019-07-16_10-03-29.mp4

Finally I found how to reproduce it.

Create plane,
Create particle system that emits cubes (color A) from -50 to 50 frame with short lifetime (20).
Duplicate particle settings, make settings unique, rename it.
Change instance to another cube (color B), change working period to 50 — 100 frames.
Check work in the viewport. Bake all dynamics, Revert file.

Messed:
duplicated particle settins.blend

Bug is not appere only if you create separate fully independent settings in the fresh file.
With independently created particles systems
fresh separate created.blend

Perhaps it can be connected with #61963
Looks like some data just stucks

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86 **Blender Version** Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-14 21:02, hash: `65168825e0` Worked: version: 2.79 (sub 7), branch: blender2.7, commit date: 2019-05-23 08:19, hash: 054dbb833e15, type: Release build date: 24/06/2019, 17:18 **Short description of error** If you duplicate particle settings, make them unique, and tune, bake of dynamica will broken. [2019-07-16_10-03-29.mp4](https://archive.blender.org/developer/F7612594/2019-07-16_10-03-29.mp4) Finally I found how to reproduce it. Create plane, Create particle system that emits cubes (color A) from -50 to 50 frame with short lifetime (20). Duplicate particle settings, make settings unique, rename it. Change instance to another cube (color B), change working period to 50 — 100 frames. Check work in the viewport. Bake all dynamics, Revert file. Messed: [duplicated particle settins.blend](https://archive.blender.org/developer/F7612614/duplicated_particle_settins.blend) Bug is not appere only if you create separate fully independent settings in the fresh file. With independently created particles systems [fresh separate created.blend](https://archive.blender.org/developer/F7612618/fresh_separate_created.blend) Perhaps it can be connected with #61963 Looks like some data just stucks

Vyacheslav Kobozev commented

2019-07-15 18:30:58 +02:00

Added subscriber: @Vyach

Vyacheslav Kobozev changed title from ~~Two particle systems in one object: bake of the second is empty each time~~ to Bake of the second particle system is empty each time

2019-07-16 07:55:37 +02:00

Vyacheslav Kobozev changed title from ~~Bake of the second particle system is empty each time~~ to Bake of the second particle system after duplication and making it unique makes mess.

2019-07-16 09:26:48 +02:00

Sebastian Parborg commented

2019-07-17 11:24:43 +02:00

Added subscribers: @Sergey, @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-07-17 11:24:43 +02:00

Sebastian Parborg commented

2019-07-17 11:24:43 +02:00

@Sergey seems like something in the caching system is messed up. If I delete the cache slots and add new ones, it works again.

Sergey Sharybin commented

2019-07-17 12:49:35 +02:00

@ZedDB, did you manage to reproduce it from scratch?
@ZedDB, @Vyach Is it a regression compared to 2.79?
Copy-pasting the plane to 2.79 exhibits the same behavior for me.

@ZedDB, did you manage to reproduce it from scratch? @ZedDB, @Vyach Is it a regression compared to 2.79? Copy-pasting the plane to 2.79 exhibits the same behavior for me.

Vyacheslav Kobozev commented

2019-07-17 19:24:28 +02:00

@Sergey just baked similar scene with 2.79 and all work as indended. No bugs. So yes, it is regression.untitled.blend

@Sergey just baked similar scene with 2.79 and all work as indended. No bugs. So yes, it is regression.[untitled.blend](https://archive.blender.org/developer/F7615242/untitled.blend)

Vyacheslav Kobozev commented

2019-07-17 19:27:41 +02:00

@ZedDB I confirm, that scene will work in viewport fine, after clearing all caches, saving and reverting file. But baking is impossible for me.

Sebastian Parborg commented

2019-07-19 11:02:51 +02:00

@Sergey I can confirm that this does seem to work in 2.79

Vyacheslav Kobozev commented

2019-07-26 16:23:41 +02:00

The same. States of system do not jump and bakes properly.
Here the comparison
2019-07-26_17-21-01.mp4

The same. States of system do not jump and bakes properly. Here the comparison [2019-07-26_17-21-01.mp4](https://archive.blender.org/developer/F7629923/2019-07-26_17-21-01.mp4)

Vyacheslav Kobozev commented

2019-09-05 09:03:23 +02:00

any news?

Sergey Sharybin was unassigned by Dalai Felinto

2019-12-23 16:33:45 +01:00

Philipp Oeser removed the

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Bake of the second particle system after duplication and making it unique makes mess. #67007