OpenSim/Wind の履歴(No.1)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• OpenSim/Wind へ行く。
  • 1 (2023-12-30 (土) 22:16:34)

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FSFW (Simple Fluid Solver Wind) Module†[edit]

• This is a Wind module for OpenSim
• Project Manager is H.Nishimura
• System Constructor is Fumi.Iseki (Fumi.Hax)

• This module uses Simple Fluid Solver program code by Jos Stam
• This module uses AForge.NET for FFT

Demo†[edit]

• YouTube Demo

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Theory of Simple Fluid Solver for Wind†[edit]

Theory and Original Source Code†[edit]

• by Jos Stam
  • http://www.dgp.utoronto.ca/people/stam/reality/Research/pub.html
  • http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/jgt01.pdf　
  • http://www.nealen.net/projects
    • http://www.nealen.net/projects/algoanim/flowanim.cpp

DownLoad†[edit]

Binary DLL†[edit]

v1.0.0†[edit]

• for OpenSim-0.9.2.2 (Mono) SimpleFluidSolverWind.dll (12288Byte)
• for OpenSim-0.9.3Dev (net6.0) SimpleFluidSolverWind.dll (24576Byte)

• AForge.Math.dll http://www.nsl.tuis.ac.jp/DownLoad/SoftWare/OpenSim/Modules/AForge.Math.dll (68096Byte)

Source Code†[edit]

Subversion Repository†[edit]

• svn co http://www.nsl.tuis.ac.jp/svn/opensim/opensim.modules/trunk/Wind

Compile Source Code (Linux)†[edit]

[Download WindModule-x.y.z.tgz]　(x, y, z are integer number)
# cp WindModule-x.y.z.tgz  [OpenSim directory]/bin
# cd [OpenSim directory]/bin
# zcat WindModule-x.y.z.tgz |tar xfv -
# cd WindModule-x.y.z
# ./build.sh                    (if you use 0.9.2, execute ./build.sh 0.9.2)
# cp bin/SimpleFluidSolverWind.dll ..
# cp AForge.NET/AForge.Math.dll ..

Install & Settings†[edit]

Install†[edit]

Download SimpleFluidSolverWind.dll†[edit]

1. Download SimpleFluidSolverWind.dll at this page.
2. Copy downloaded SimpleFluidSolverWind.dll to OpenSim bin folder or directory.

Download AForge.NET†[edit]

1. Please download AForge.NET from AForget.NET Download Page. My recommendation is [ Download Libraries Only ]
2. Extract downloaded zip file.
3. Copy AForge.Math.dll to OpenSim bin folder or directory (only AForge.Math.dll).

Settings†[edit]

• Please Edit bin/OpenSim.ini
  • Sample

    [Wind]
       ;# {enabled} {} {Enable wind module?} {true false} true
       ;; Enables the wind module.
       enabled = true
    
       ;# {wind_update_rate} {enabled:true} {Wind update rate in frames?} {} 150
       ;; How often should wind be updated, as a function of world frames.
       ;; Approximately 50 frames a second
       wind_update_rate = 100
    
       ;; The Default Wind Plugin to load
       ;wind_plugin = SimpleRandomWind
       wind_plugin = SimpleFluidSolverWind
       ..........
    [XEngine]
       ...........
       AllowOSFunctions = true

Support Script†[edit]

SFSW_controller.lsl†[edit]

• SFSW_controller.lsl
• When you touch it, object Says module parameters

Commands†[edit]

* /6000 force value†[edit]

• Set a kind of the external force
• value
  • 0 : Random Wind (default)
  • 1 : North Wind
  • 2 : East Wind
  • 3 : South Wind
  • 4 : West Wind
  • 5 : Rotational Wind

* /6000 period value†[edit]

• Set period of the external force
• When this Wind module is called times of this value, Wind module restarts.
• If set 0, Wind module never restart by period.

* /6000 strength value†[edit]

• Set Wind strength
• Default is 1.0

* /6000 damping value†[edit]

• Set damping rate of the external force
• Default is 0.85

* /6000 wind_visc value†[edit]

• Set (scaled) viscosity coefficient of the wind
• Default is 0.001

* /6000 wind_eps value†[edit]

• Set lower limit of the energy variation rate.
• When the energy variation rate is under this value, Wind module restarts.
  • energy variation rate = (Previous Wind Energy - Current Wind Energy)/(Current Wind Energy)
• If set 0.0, Wind module never restart by energy variation rate.
• Default is 0.004

* /6000 region value†[edit]

• Set size of the region
• Normally, the region is automatically set

* /6000 stop†[edit]

• Stop the wind

* /6000 reset†[edit]

• Stop the wind and reset script

* /6000 help†[edit]

• Show the help messages

Memo†[edit]