Engine version: 5.1+

Efficient VR Development with VR Input Recorder

VR Input Recorder is designed to address one of the most persistent frustrations in VR and XR development: the constant need to put on and take off the headset. By streamlining the testing process, this tool allows developers to focus more on their code and less on physical hardware adjustments. Consequently, it creates a much more efficient environment for building immersive experiences.

The core functionality of the tool relies on Enhanced Input Injection. This technology emulates input actions at runtime, which allows the developer to playback recorded playthroughs. While these recordings run, developers can simultaneously debug code within Blueprints and C++. Therefore, you can observe how your game logic behaves without being tethered to the hardware during every single test.

Advanced Input Support and Debugging

The VR Input Recorder is versatile in its handling of data. It specifically supports Float, Boolean, and Vector2D Input Actions. This range ensures that most standard interactions within a VR environment can be captured and replayed accurately. Furthermore, game inputs remain functional even when the Play In Editor (PIE) window is not active, providing more flexibility during complex debugging sessions.

Iteration becomes much faster with this tool. Because it allows for tweaking variables on the fly, developers can refine game design elements without jumping in and out of the headset for simple adjustments. This capability provides new ways of debugging that were previously cumbersome or time-consuming. Moreover, the tool includes sample code specifically for use with VRExpansion, making it easier to integrate into existing workflows.

A Tool for Content Creators

Beyond technical development, the VR Input Recorder serves as an excellent resource for content creators. It provides a unique way to capture high-quality gameplay footage. By recording a playthrough first, the developer can then use the editor to act as their own camera man. This allows for cinematic shots and better presentation of the game’s features without the limitations of a first-person VR view.

Technical Requirements and Considerations

It is important to note that the VR Input Recorder is designed exclusively for projects utilizing the Enhanced Input system, such as the standard VRTemplate. While the tool provides significant benefits, there are some technical nuances to keep in mind. For instance, the system uses Tick to set positions. Consequently, there may be minor accuracy issues if performance fluctuates, meaning the playback might not be perfectly exact under heavy loads.

The demo scene provided with the tool uses the Epic VRTemplate as its base. While the Epic template requires the OpenXR Plugin to be enabled, the VR Input Recorder itself generally does not have this requirement. This makes it a flexible addition to various project setups.

Conclusion

The VR Input Recorder offers a practical solution to the physical demands of XR development. By enabling input emulation and playback, it allows for deeper debugging and faster design iterations. Whether you are a programmer refining C++ logic or a content creator seeking the perfect gameplay shot, this tool simplifies the bridge between the virtual world and the development environment.