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Contributing Guidelines

Issues, pull requests, and other contributions are welcomed!

A few tips:

Is OSVR-Unreal the right repository?

The OSVR system consists of a number of repositories, many of which are in the OSVR organization on GitHub.

The OSVR-Unreal repo contains the code to integrate OSVR with the Unreal Engine, as well as a small sample.

  • If you've got an issue to report, a bug fix, or a feature addition to those components: yes, you're in the right spot!
  • If you have an issue, bug fix, or other contribution related to the OSVR server (which comes bundled with an OSVR-Unity binary snapshot) or one of the plugins: you're close - see the OSVR-Core repo for the server and its bundled plugins.
  • If you have a hardware or software issue related to OSVR but aren't sure exactly where it fits: let us know with a support ticket at

Getting ready

General "getting started" instructions can be found at

When making pull requests, please fork the project and create a topic branch off of the master branch. (This is what GitHub does by default if you start editing with your web browser.)

When developing, make small commits that are nevertheless "whole": small enough to review, but each containing a logical single change in its entirety. (If you don't understand what we mean by this, that's OK, we'll work it out.)

It's OK to rebase your topic branch to make the history more clear. Avoid merging from master into your topic branch: if you need a change from master, rebase; otherwise, try to keep topic branches short-lived enough that we can get your code in to the mainline before much else changes!

Try to develop code that is portable (not particularly tied to a single operating system/compiler/etc) - OSVR runs on a number of platforms, and while we don't expect you to have all of them to test on, it's good to keep in mind. Our continuous integration server will be able to help with this.

If you're adding something reasonably testable, please also add a test. If you're touching code that already has tests, make sure they didn't break.

This repository tries to follow an approximation of the Unreal Engine code style guidelines. There is a configuration file for clang-format - you can run the formatter on all the code by running the script in the root of the repository (yes, even works on Windows, if you have git bash installed and an installed snapshot of LLVM/Clang). The main points are to match code surrounding what you're edited, and to be sure to use clang-format. These help ensure that your changes are not artificially large because of whitespace, etc, that it's easy to review your changes, and that your code will be maintainable in the future.


No formal copyright assignment is required. If you're adding a new file, make sure it has the appropriate license header. Any contributions intentionally sent to the project are considered to be offered under the license of the project they're sent to.