Developer Documentation

Revision as of 01:05, 6 April 2019

 

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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.

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

libOpenMetaverse contains the source code of libOpenMetaverse for versions >= 0.9.1.0

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Please be aware that some of this documentation may be out of date.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 Team — OpenSimulator is brought to you by...
• Organization - Guidelines and standards about core developers and how one becomes a member.
• Release Cycle — How to create an OpenSimulator release.
• Automated Release Building
• On revisions, tags and branches
• Hacking OpenSim for fun and profit — A starters guide for programming OpenSimulator.
• Coding standards — Coding conventions for developers.
• Codebase overview - Very broad overview of the codebase.
• Policies for patching OpenSimulator — Because coding standards don't tell the whole story.
• Branches — An overview of the repository branches and what they are for.
• Monodevelop — How to use the monodevelop IDE for editing C# solutions.
• Debugging - Information about debugging OpenSimulator.
• Performance — Information about performance in OpenSimulator, including studies on where the bottlenecks are.
• Glossary - A glossary of terms used in OpenSimulator.

Development

• Mantis Bug Tracking — Mantis is the issue tracking tool of OpenSimulator.
• Continuous Integration — OpenSimulator's Jenkins installation builds the source base after each commit and runs the regression tests.
• OpenSimulator GForge — Project hosting for OpenSimulator related projects.

Testing

• Testing - General testing information.
• Automated Testing - Writing Automated tests for OpenSimulator.
• Prim Linking Testing - Test cases for in world link/unlinking of prims.
• pCampBot - A facility for stress-testing a simulator.

Architecture

• OpenSim: Introduction and Definitions — A work in progress describing the high level components of OpenSimulator
• Technical Reference — A technical description of the simulator operation.
• Grid Architecture Diagram
• Plugins — The types of plugins used in OpenSimulator.
• Region module basics - The basics of how to create a region module, and where example code can be found in the OpenSimulator source tree.
• Hypergrid Implementation - details on the internal implementation of the Hypergrid system in OpenSimulator. For more general details also see the Hypergrid page.

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

• User Inventory Architecture - A general page that aims to detail the user inventory mechanisms in OpenSimulator.

Map

• Map - Mapping overview
• Warp3DImageModule — This is an improved map image module.

Permissions

• Permissions (Server) — Permissions system as implemented on the region server.
• OpenSim: Permissions — Notes on how object permissions are handled on the client.

Physics

• PhysicsEngines — Options for physics engines in OpenSimulator.
• Physics Engine Interface — what methods and such exist in a Physics module

Regions/Scenes

• Overview of How Regions Work
• OpenSim: Permissions — Notes on object permissions & definition of the ObjectFlags variable.
• OpenSim Load Balancing and Region Splitting - Instructions for using load balancing and region splitting features.

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).
• Scripts Performance - Factors that affect script performance, and how to measure them

Search

• OpenSim.Region.DataSnapshot - Shiny new data gathering/search system
• ImageService - Shiny new region module for serving search-related images

Sound

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

Statistics

• Stats Manager - Information about the main statistics monitor used in OpenSimulator and how to add/remove extra stats from modules.
• Web Statistics Module - The web statistics module documentation and counter wish list.

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

Recent Git Commits

cosmetics (UbitUmarov) (Sun, 22 Dec 2024 15:29:34 -0800)

cosmetics UbitUmarov <ajlduarte at sapo dot pt> OpenSim/ConsoleClient/ConsoleClient.cs

fix typo (UbitUmarov) (Sat, 21 Dec 2024 17:22:48 -0800)

fix typo UbitUmarov <ajlduarte at sapo dot pt> OpenSim/Data/SQLite/SQLiteSimulationData.cs

get PID from Environment.ProcessId (UbitUmarov) (Sat, 30 Nov 2024 13:11:03 -0800)

get PID from Environment.ProcessId UbitUmarov <ajlduarte at sapo dot pt> OpenSim/Framework/Servers/ServerBase.cs

fix rez distance check (UbitUmarov) (Sat, 30 Nov 2024 11:52:29 -0800)

fix rez distance check UbitUmarov <ajlduarte at sapo dot pt> .../Shared/Api/Implementation/LSL_Api.cs

fix vel parameter on rez obj witrh params (UbitUmarov) (Sat, 30 Nov 2024 11:14:48 -0800)

fix vel parameter on rez obj witrh params UbitUmarov <ajlduarte at sapo dot pt> .../Shared/Api/Implementation/LSL_Api.cs