Mantaflow Fails to bake liquid particles with plane shaped flow objects #73866

New Issue

Zijun Zhou · 2020-02-16T04:23:48+01:00

Zijun Zhou commented

2020-02-16 04:23:48 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce MX130/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.19

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: 77d23b0bd7
Worked: version 2.82 beta (daily build from 2020-01-21, Hash: bda0c0847b)

Short description of error
I noticed that Mantaflow does not bake the liquid particles with plane shaped flow object.
I also tested this on a beta version I downloaded back in 2020-01-21, and it works in the beta with planes, I wonder why that's the case.
(This is edited, so that the solidify modifier is removed. And I still believe it is valid since the beta did work, even with 64 resolution divisions.)
Exact steps for others to reproduce the error

Based on the attacked .blend file, which is a domain with a circular plane in it.
Select the domain, and hit "bake data", after baking, it remains unchanged, no particles show up.
Free the data. Close the stable version.
Open up the attched .zip file, and run blender.exe in it. This is the beta version from 2020-01-21 (Yeah it's a little bit large, I am sorry.)
Open the attached .blend file with it, and bake again
You can see it is actually baking.
Mantaflow Plane Emittor.blend
blender-2.82-bda0c0847b5e-windows64.zip

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce MX130/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.19 **Blender Version** Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: `77d23b0bd7` Worked: version 2.82 beta (daily build from 2020-01-21, Hash: bda0c0847b5e) **Short description of error** I noticed that Mantaflow does not bake the liquid particles with plane shaped flow object. I also tested this on a beta version I downloaded back in 2020-01-21, and it works in the beta with planes, I wonder why that's the case. (This is edited, so that the solidify modifier is removed. And I still believe it is valid since the beta did work, even with 64 resolution divisions.) **Exact steps for others to reproduce the error** 1. Based on the attacked .blend file, which is a domain with a circular plane in it. 2. Select the domain, and hit "bake data", after baking, it remains unchanged, no particles show up. 3. Free the data. Close the stable version. 4. Open up the attched .zip file, and run blender.exe in it. This is the beta version from 2020-01-21 (Yeah it's a little bit large, I am sorry.) 5. Open the attached .blend file with it, and bake again 6. You can see it is actually baking. [Mantaflow Plane Emittor.blend](https://archive.blender.org/developer/F8345153/Mantaflow_Plane_Emittor.blend) [blender-2.82-bda0c0847b5e-windows64.zip](https://archive.blender.org/developer/F8345161/blender-2.82-bda0c0847b5e-windows64.zip)

Zijun Zhou commented

2020-02-16 04:23:48 +01:00

Added subscriber: @Eary

Zijun Zhou changed title from ~~Mantaflow Fails to bake liquid particles with flow objects that has thickness less than 0.042 m~~ to Mantaflow Fails to bake liquid particles with flow objects that have thickness less than 0.042 m

2020-02-16 04:35:59 +01:00

Richard Antalik commented

2020-02-17 12:53:34 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Bastien Montagne commented

2020-02-17 14:57:52 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2020-02-17 14:57:52 +01:00

Changed status from 'Confirmed' to: 'Archived'

Bastien Montagne closed this issue

2020-02-17 14:57:52 +01:00

Bastien Montagne self-assigned this 2020-02-17 14:57:52 +01:00

Bastien Montagne commented

2020-02-17 14:57:52 +01:00

Given how stretch your inflow object is, you simply need to increase the Resolution Divisions parameter... No bug here.

Given how stretch your inflow object is, you simply need to increase the `Resolution Divisions` parameter... No bug here.

Zijun Zhou commented

2020-02-17 15:33:00 +01:00

This comment was removed by @Eary

*This comment was removed by @Eary*

Zijun Zhou commented

2020-02-17 15:36:48 +01:00

Ok, got it.

Zijun Zhou commented

2020-02-17 15:41:32 +01:00

But still, delete the solidify modifier, and the beta version works, but not the stable version, I wonder why.

Zijun Zhou changed title from ~~Mantaflow Fails to bake liquid particles with flow objects that have thickness less than 0.042 m~~ to Mantaflow Fails to bake liquid particles with plane shaped flow objects

2020-02-17 16:22:13 +01:00

Zijun Zhou commented

2020-02-17 16:24:41 +01:00

I updated the task description, since I now understand the problem has nothing to do with thickness and solidify modifier. And I don't want this problem to be left not resolved because of my wording problem. Please compare the results from both the stable version, and the beta version from 2020-01-21 attached.

Bastien Montagne commented

2020-02-17 17:35:47 +01:00

Changed status from 'Archived' to: 'Needs Developer To Reproduce'

Bastien Montagne reopened this issue

2020-02-17 17:35:47 +01:00

Bastien Montagne commented

2020-02-17 17:35:47 +01:00

Added subscriber: @sebbas

Bastien Montagne commented

2020-02-17 17:35:47 +01:00

@sebbas think that one is for you to check then?

Sebastián Barschkis commented

2020-03-23 23:59:31 +01:00

@Eary I just committed a fix (cda81d5a4d) that makes it easier to setup plane objects as emitters (same applies to planar obstacles). Now the only requirement is to set "Is Planar" in the flow objects. The object will have some thickness by default.

Can you confirm that this fixes your issue?

@Eary I just committed a fix (cda81d5a4d39) that makes it easier to setup plane objects as emitters (same applies to planar obstacles). Now the only requirement is to set "Is Planar" in the flow objects. The object will have some thickness by default. Can you confirm that this fixes your issue?

Sebastián Barschkis commented

2020-03-27 16:58:33 +01:00

Changed status from 'Needs Developer To Reproduce' to: 'Resolved'

Sebastián Barschkis closed this issue

2020-03-27 16:58:33 +01:00

Sebastián Barschkis commented

2020-03-27 16:58:33 +01:00

Closing since, in my view, this is no longer an issue.

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Mantaflow Fails to bake liquid particles with plane shaped flow objects #73866