Latest revision as of 00:48, 5 September 2007

[edit] Installing from source

[edit] MS Windows

OpenSim requires either the .Net framework version 2.0, or the latest Mono. It also is compiled with the C# and not the C++ IDE for those who are using the no-cost Express Editions from MS.

[edit] Subversion Repository

1. Get the source code from the svn repository:

svn://openmv.org/opensim/trunk

[edit] Building

2. In the top-level directory, run the 'runprebuild.bat' file. This will create both a VS2005 solution file, and a nant build file.

3. Open the resulting sln file with visual studio, and build it there, or if you prefer to use nant, run nant in the same top-level directory. This will build the executables.

If you don't care about physics (walking on prims, etc), ignore the rest of this section.

[edit] Physics

[edit] Open Dynamics Engine (ODE)

If you want to implement collision-based physics, OpenDynamicsEngine (ODE) is the furthest along at the moment (9/07). It is not fully supported, but is starting to work somewhat reliably using a small number of regions per sim.

As installed from svn, ODE does not work on all platforms. If you get an ODE-related crash, and/or an ode.dll not found type of error (which can occur even though the dll is present!), try using the debug version of the dll, available here:

http://www.squiggle.com/opensim/ode-debug.dll

Rename it ode.dll and put it in .\bin, replacing the stock ode.dll. You can also try building ode.dll from the latest version of the source (http://www.ode.org/; make sure to enable trimesh)

[edit] Running

Double-click on the OpenSim.exe executable file in the bin directory. This will start up OpenSim in standalone mode.

The debugger in VS2005 C# may be used to step through the code. For those that use a Cygwin shell, you may find that one or more dll's have permissions that cause problems running. Most find that a "chmod 777 *" from the bin directory solves this.

Physics can be invoked by adding the appropriate line to the [Startup] section of OpenSim.ini. For ODE, that would be:

physics = OpenDynamicsEngine

You can also add a command line option to a shortcut, or run from a command prompt with:

-physics=OpenDynamicsEngine

[edit] Linux/Mac OS X

[edit] Subversion Repository

To check out the latest revision:

svn co svn://opensecondlife.org/opensim/trunk opensim.new/trunk

Note: The libopenjpeg-libsl-...so is not really working. For this reason you should download the newest libsecondlife from http://www.libsecondlife.org/, and build your own libopenjpeg library. If you use this instead of the SVN version, your sim will work fine.

Note to Mac OS X users: OS X does not come packaged with subversion, so you will need to either install it or access the repository from a computer that does have subversion.

[edit] Building (Mono)

For revisions 1657 and above:

cd opensim.new/trunk

mono bin/Prebuild.exe /target nant
nant -buildfile:OpenSim.build

Earlier revisions (before 1657) require you to rerun prebuild again after the first build, and then build again:

cd opensim.new/trunk

mono bin/Prebuild.exe /target nant
nant -buildfile:OpenSim.build

mono bin/Prebuild.exe /target nant
nant -buildfile:OpenSim.build

[edit] Physics

If you want to implement collision-based physics, OpenDynamicsEngine (ODE) is the furthest along at the moment (9/07). It is not fully supported, but is starting to work somewhat reliably using a small number of regions per sim.

[edit] Open Dynamics Engine (ODE)

As installed from svn, ODE does not work on all platforms. If you get an ODE-related crash, and/or a libode.so not found type of error, you will need to build libode from source.

Remove libode.so from the ./bin folder. (Note that subsequent svn updates may replace it again; best fix is to copy your built libode.so to bin). Do NOT remove ode.net.dll! Download the latest source packages from http://www.ode.org/. When compiling, make sure to use the following configure options:

--with-trimesh=gimpact 
--enable-shared

Make sure the configure script confirms these choices, and always compile with single precision (I believe that's the default). Try make -k if you get errors relating to drawstuff, test*, or openGL. make install should put libode.so in the proper place (usually /usr/local/lib), and it should be seen by opensim (ode.net.dll)

[edit] Running (Mono)

cd bin
mono OpenSim.exe

to invoke ODE, add the option:

-physics=OpenDynamicsEngine

or add physics = OpenDynamicsEngine to the [Startup] section of OpenSim.ini. Same deal for other physics engines, when available.

[edit] Binary releases

Nightly builds, presumably for Linux:

http://ruth.petitbe.be/build/