Cloth simulation doesn't run in final render #67074

New Issue

Imre Varga · 2019-07-16T19:42:06+02:00

Imre Varga commented

2019-07-16 19:42:06 +02:00

Operating system: Windows 10
Graphics card: RTX 2070 MaxQ

Blender Version
Broken: 2,80 RC1
Worked: 2.79

As opposed to Blender 2.79 the cloth simulation doesn't show in the final render in Blender 2,80 unless it is cached.

blender_2_79_bug_report_cloth_simulation_.blend

open attached .blend file in Blender 2.79
run simulation in viewport
render animation, observe correct result
go back to viewport and in and out of edit mode with the cloth selected to clear cache
render animation, observe correct result
open same file without any modification in Blender 2.80
run simulation in viewport
render animation, observe correct result
go back to viewport and in and out of edit mode with the cloth selected to clear cache
render animation, observe bug: simulation doesn't run, cloth just sits there

Operating system: Windows 10 Graphics card: RTX 2070 MaxQ **Blender Version** Broken: 2,80 RC1 Worked: 2.79 As opposed to Blender 2.79 the cloth simulation doesn't show in the final render in Blender 2,80 unless it is cached. [blender_2_79_bug_report_cloth_simulation_.blend](https://archive.blender.org/developer/F7613381/blender_2_79_bug_report_cloth_simulation_.blend) - open attached .blend file in Blender 2.79 - run simulation in viewport - render animation, observe correct result - go back to viewport and in and out of edit mode with the cloth selected to clear cache - render animation, observe correct result - open same file without any modification in Blender 2.80 - run simulation in viewport - render animation, observe correct result - go back to viewport and in and out of edit mode with the cloth selected to clear cache - render animation, observe bug: simulation doesn't run, cloth just sits there

Imre Varga commented

2019-07-16 19:42:06 +02:00

Added subscriber: @imrevarga

Sergey Sharybin was assigned by Sebastian Parborg

2019-07-17 14:19:25 +02:00

Sergey Sharybin commented

2019-07-17 14:24:06 +02:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2019-07-17 14:24:06 +02:00

Sergey Sharybin commented

2019-07-17 14:24:06 +02:00

This isn't a bug, but an outcome of data separation between viewport and final render: render thread is not allowed to write to the cache since that causes threading conflicts, hence simulation from it is not possible.

Please note that for the correct behavior of all features like motion blur it is required to have cached or baked simulation.

Thanks for the report, but is not considered a bug.

This isn't a bug, but an outcome of data separation between viewport and final render: render thread is not allowed to write to the cache since that causes threading conflicts, hence simulation from it is not possible. Please note that for the correct behavior of all features like motion blur it is required to have cached or baked simulation. Thanks for the report, but is not considered a bug.

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Cloth simulation doesn't run in final render #67074