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[Mantaflow] low domain transformation performance #76687

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opened 2020-05-12 16:46:12 +02:00 by Pavel Blend · 12 comments
Pavel Blend commented 2020-05-12 16:46:12 +02:00
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System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: AMD Radeon HD 7560D ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008

Blender Version
Broken: version: 2.83 (sub 15), branch: master, commit date: 2020-05-11 19:18, hash: 8956e9e5f6
Worked: (newest version of Blender that worked as expected)

Short description of error
If you move, rotate or scale the domain, then the performance of the blender decreases.

Exact steps for others to reproduce the error
Playable in any scene:
mantaflow_domain_transforms.mp4

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: AMD Radeon HD 7560D ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008 **Blender Version** Broken: version: 2.83 (sub 15), branch: master, commit date: 2020-05-11 19:18, hash: `8956e9e5f6` Worked: (newest version of Blender that worked as expected) **Short description of error** If you move, rotate or scale the domain, then the performance of the blender decreases. **Exact steps for others to reproduce the error** Playable in any scene: [mantaflow_domain_transforms.mp4](https://archive.blender.org/developer/F8530889/mantaflow_domain_transforms.mp4)
Pavel Blend commented 2020-05-12 16:46:12 +02:00
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Added subscriber: @Pavel_Blend

Added subscriber: @Pavel_Blend
blender-admin commented 2020-05-12 16:46:12 +02:00
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#77566 was marked as duplicate of this issue

#77566 was marked as duplicate of this issue
Eitan Traurig commented 2020-05-12 17:18:04 +02:00
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Added subscriber: @sebbas

Added subscriber: @sebbas
Germano Cavalcante commented 2020-05-13 15:09:04 +02:00
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Added subscriber: @mano-wii

Added subscriber: @mano-wii
Germano Cavalcante commented 2020-05-13 15:09:04 +02:00
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This must be happening because by default the cache type is now Replay. And this cache tries to recalculate the simulation with each change.
@Pavel_Blend, can you test changing the cache to Modular or skipping a few frames ahead (frame 10 for example)?

@sebbas, we could update the simulation only if G.moving == 0.
I'm not sure if this is really a bug.

This must be happening because by default the cache type is now Replay. And this cache tries to recalculate the simulation with each change. @Pavel_Blend, can you test changing the cache to Modular or skipping a few frames ahead (frame 10 for example)? @sebbas, we could update the simulation only if `G.moving == 0`. I'm not sure if this is really a bug.
Pavel Blend commented 2020-05-13 16:04:23 +02:00
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@mano-wii yes, switching cache mode to modular helped me.

@mano-wii yes, switching cache mode to modular helped me.
Germano Cavalcante commented 2020-05-13 16:49:34 +02:00
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Germano Cavalcante commented 2020-05-13 16:49:34 +02:00
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I will confirm it as a bug for now as heavy operations like these should not be performed while we are editing the objects in a scene.

I will confirm it as a bug for now as heavy operations like these should not be performed while we are editing the objects in a scene.
Germano Cavalcante commented 2020-06-09 16:12:37 +02:00
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Added subscribers: @Wyk, @ankitm

Added subscribers: @Wyk, @ankitm
blender-admin commented 2020-07-13 16:09:24 +02:00
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This issue was referenced by 952279a366

This issue was referenced by 952279a366783bf471c900e368ee2fc3055cb64b
Sebastián Barschkis commented 2020-07-13 16:16:13 +02:00
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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
Sebastián Barschkis self-assigned this 2020-07-13 16:16:13 +02:00
Sebastián Barschkis commented 2020-07-13 16:18:35 +02:00
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@mano-wii Yes, the check for that flag seemed like a good idea to me too!

@mano-wii Yes, the check for that flag seemed like a good idea to me too!
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Reference: blender/blender#76687
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