Inflow not working inside enclosed collision effector #83483

New Issue

Hardik Parmar · 2020-12-06T23:06:36+01:00

Hardik Parmar commented

2020-12-06 23:06:36 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: 0f45cab862
Worked: 2.90.1

Description
Inflow not working inside enclosed collision effector.

To reproduce
#83483.blend

Open file
Play animation

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30 **Blender Version** Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: `0f45cab862` Worked: 2.90.1 **Description** Inflow not working inside enclosed collision effector. **To reproduce** [#83483.blend](https://archive.blender.org/developer/F9500077/T83483.blend) - Open file - Play animation

Hardik Parmar commented

2020-12-06 23:06:36 +01:00

Added subscriber: @hardikp0143

Robert Guetzkow commented

2020-12-07 10:51:49 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-12-07 10:51:49 +01:00

This comment was removed by @rjg

*This comment was removed by @rjg*

Robert Guetzkow commented

2020-12-07 11:24:42 +01:00

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

Robert Guetzkow commented

2020-12-07 11:24:42 +01:00

Added subscriber: @sebbas

Robert Guetzkow commented

2020-12-07 11:24:42 +01:00

@sebbas Apparently an inflow inside a closed mesh doesn't always work. In my test there is no fluid appearing at all. Is this expected? Additionally it seems that changes to the scene don't invalidate the cache and the previous result from the replay continues to display.

fluid_test_open_cylinder.blend

fluid_test_closed_cylinder.blend

@sebbas Apparently an inflow inside a closed mesh doesn't always work. In my test there is no fluid appearing at all. Is this expected? Additionally it seems that changes to the scene don't invalidate the cache and the previous result from the replay continues to display. [fluid_test_open_cylinder.blend](https://archive.blender.org/developer/F9487868/fluid_test_open_cylinder.blend) [fluid_test_closed_cylinder.blend](https://archive.blender.org/developer/F9487867/fluid_test_closed_cylinder.blend)

Richard Antalik commented

2020-12-10 13:11:23 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-12-10 13:11:23 +01:00

In #83483#1069819, @rjg wrote:
@sebbas Apparently an inflow inside a closed mesh doesn't always work. In my test there is no fluid appearing at all. Is this expected? Additionally it seems that changes to the scene don't invalidate the cache an the previous result from the replay continues to display.

Both files are working well in 2.90.1. There are small leaks, but this is because wall thickness is very close to domain resolution. So I am confirming this and use file with closed cylinder
@hardikp0143 if this file is not describing your problem please create new report and provide all necessary information (sample .blend file)

> In #83483#1069819, @rjg wrote: > @sebbas Apparently an inflow inside a closed mesh doesn't always work. In my test there is no fluid appearing at all. Is this expected? Additionally it seems that changes to the scene don't invalidate the cache an the previous result from the replay continues to display. Both files are working well in 2.90.1. There are small leaks, but this is because wall thickness is very close to domain resolution. So I am confirming this and use file with closed cylinder @hardikp0143 if this file is not describing your problem please create new report and provide all necessary information (sample .blend file)

Richard Antalik changed title from ~~Fluid Simulation effector is not affecting the fluid if it is enclosed~~ to Inflow not working inside enclosed collision effector

2020-12-10 13:17:45 +01:00

Richard Antalik commented

2020-12-10 13:17:45 +01:00

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

Jacques Lucke commented

2021-01-05 16:01:34 +01:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2021-01-05 16:01:34 +01:00

I noticed that it works sometimes, but not always. It seems to depend highly on the position of the collection object. I can't explain why this is yet. The main function we have to look at is probably update_distances, but I couldn't see any obviously wrong yet.
2021-01-05 15-29-32.mp4

I noticed that it works sometimes, but not always. It seems to depend highly on the position of the collection object. I can't explain why this is yet. The main function we have to look at is probably `update_distances`, but I couldn't see any obviously wrong yet. [2021-01-05 15-29-32.mp4](https://archive.blender.org/developer/F9551455/2021-01-05_15-29-32.mp4)

Philipp Oeser removed the

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Inflow not working inside enclosed collision effector #83483