Developer Documentation

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Contents

Source Code Repository Access

OpenSimulator uses git as its source code repository. Checkout 

git clone git://opensimulator.org/git/opensim

See Source Code Repository for more details.

See Using Git for more Details on installing and using GIT with OpenSimulator.org

You can also browse the source code for OpenSimulator using a web browser.

We have Ohloh page, which takes various statistics of the OpenSimulator code base.

This is also an opensim-libs git repository which contains the source code to some of the 3rd party libraries built and included in OpenSimulator.

Contributing

Submitting Patches

Please review Submitting code to OpenSim

Feature Proposals

Larger changes may require feature proposals depending on whether they introduce or significantly change existing functionality. Please use your judgement to determine whether this is required.

For more details please see the Feature Proposals page.

Developer Documentation

Please be aware that some of this documentation may be out of date. If this appears to be the case then please ask for more information on the mailing lists or IRC channels (details are on the Main Page). If you can't find what you want here you might want to try looking in the User Documentation.

General

Development

Testing

Architecture

Services

  • Connectors — A description of OpenSimulator's connector architecture, used for linking region code with services (asset, inventory, etc.) in both local (standalone) and distributed (grid) configurations.
  • Services - A description of the grid and simulator services used by OpenSimulator.

Communication

  • LLUDP ClientStack - Information on the LLUDP client stack used by OpenSimulator to send and receive UDP packets from viewers implementing the Linden Labs virtual environment protocol.
  • Communication Protocols - Introduction to the various communication protocols used by OpenSimulator. This includes viewer to OpenSimulator TCP and UDP protocols (e.g. login, agent update message exchange, asset fetch, etc.), inter-region protocols and grid service protocols. It also details methods by which arbitary UDP and TCP messages can be sent back and forth between clients/modified viewers and OpenSimulator region modules.
  • Agent Domain / Service - Details about the GridForge hosted Agent Domain/Service code (legacy doc since this LL inspired work has long been abandoned).

Database

  • Database Documentation — Information on the database schemas used in OpenSimulator
  • MonoSqlite — How the database model currently works.
  • LSL:PrimitiveParams — Notes on converting SL Edit GUI values and LSL PrimitiveParams to OpenSimulator PrimitiveBaseShape fields

Formats

  • OpenSim Archives - Opensim Region Archive (OAR) file format.
  • Inventory Archives - OpenSimulator Inventory Archive (IAR) file format
  • Asset Formats - OpenSimulator asset formats. This includes serialized object formats and appearance formats.

Integration

  • AuthIntegration - How to integrate external authentication systems (such as web frontends) with OpenSimulator's authentication system.
  • ClothingManipulation - How to set clothing on avatars using external ROBUST service calls.
  • UserManipulation - How to create users in OpenSimulator via external calls through ROBUST (only available when running in grid configuration).
  • RemoteAdmin - How to use the remote admin plug-in. Some functions (e.g. user creation) are only available when running in standalone configuration.
  • RegionIntegration - Integrating a region and the things within it (scene objects, etc.) with external sources of data and webpages.
  • RestConsole - Description how to use the REST remote console
  • REST - Information about the REST interface to assets, inventory, etc.
  • Webinterface - Integrating the external face of OpenSimulator with the web.
  • Services - Contains general information on the default OpenSimulator services (asset, inventory, etc.) and more detailed information of HTTP interfaces for some services.
  • Known Web Interfaces within OpenSim - The set of CAPS, XMLRPC, or REST entry points in the project.

Inventory

Map

Permissions

Physics

Regions/Scenes

Scripting

  • Scripting Documentation — How to use scripts and what limitations apply.
  • LSL Status — A list of LSL-functions that are available in OpenSimulator.
  • OSSL — Some information about the OpenSimulator Scripting Language, and how to implement an OSSL function
  • OSSL Script Library/ModSendCommand - A mechanism for in-world scripts to use a generic modSendCommand() and the link_message event to communicate with region modules.
  • OSSL_Script_Library/ModInvoke - A mechanism for region modules to make new functions available to in-world scripts without patching the OpenSimulator runtime.
  • ScriptEngines — Information about script engines (chiefly XEngine).

Search

Sound

  • Sound Protocol - Technical information about the sound protocols (e.g. UDP messages between viewer and server).

Statistics

Threading

  • Threading — Information on the way that threads are used in OpenSimulator.

Users

  • Appearance Troubleshooting - Also contains useful information about avatar behave and the relevant message exchanges between the viewer and the simulator.
  • Attachment Protocols - Information on the attachment protocols used by viewers and OpenSimulator.
  • Name Binding - Some information on how OpenSimulator (and Second Life) binds user UUIDs to names (e.g. 25bf6e60-91c0-4d28-8349-ba254cd4388e -> Jane Doe).
  • Userlevel — Explanation of permissions granted via "God Mode"/Admin Status.

Discussing Documentation

A good first point of contact is the #opensim-dev IRC channel. The OpenSimulator developers also hold office hours once a week in-world on Tuesdays at "Wright Plaza" on http://osgrid.org. There is a "Test Hour" on Saturdays, also generally on "Wright Plaza". Both these weekly events are held at 1900UTC in summer time and 2000UTC in winter.

There is also a development mailing list when development discussion takes place.

Recent Git Commits

be more restrict when sending object contents asset ids, like when ower also should not see (UbitUmarov) (Tue, 19 Nov 2024 17:51:12 -0800)
be more restrict when sending object contents asset ids, like when ower also should not see UbitUmarov <ajlduarte at sapo dot pt> .../Framework/Scenes/SceneObjectPartInventory.cs
change UI god cancelation on arrival decision code a bit (UbitUmarov) (Tue, 19 Nov 2024 15:13:50 -0800)
change UI god cancelation on arrival decision code a bit UbitUmarov <ajlduarte at sapo dot pt> OpenSim/Region/Framework/Scenes/GodController.cs
do tell viewers about UI god cancelation on arrival (UbitUmarov) (Tue, 19 Nov 2024 15:05:59 -0800)
do tell viewers about UI god cancelation on arrival UbitUmarov <ajlduarte at sapo dot pt> .../Avatar/UserProfiles/UserProfileModule.cs
cosmetics (UbitUmarov) (Mon, 18 Nov 2024 20:25:32 -0800)
cosmetics UbitUmarov <ajlduarte at sapo dot pt> OpenSim/Data/MySQL/MySQLGroupsData.cs
cosmetics (UbitUmarov) (Sun, 17 Nov 2024 19:00:26 -0800)
cosmetics UbitUmarov <ajlduarte at sapo dot pt> .../ScriptEngine/YEngine/MMRScriptCodeGen.cs

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