Unity VFX Graph real-time point cloud streaming via Record3D demo

2022/08/16 Update: To be used with Record3D 1.7.2 and newer.

2021/07/28 Update: Added support for higher-quality LiDAR RGB streaming. Use this Unity demo with Record3D 1.6 or newer.

2021/03/15 Update: For playback of pre-recorded videos, visit the record3d_offline_unity_demo

2020/09/26 Update: Optimized the project for Unity 2019.4.11f1

2020/09/17 Update: Introduced LiDAR support

This demo shows how to use the Record3D app to stream Point Clouds from your iPhone/iPad with the TrueDepth camera into Unity VFX Graph in real-time.

Disclaimer: the demo is in pre-alpha state; in case of wider interest I can continue developing this project into a Unity Plugin.

Acknowledgements

This project contains a modified Particles VFX of Keijiro Takahashi which demonstrates how to integrate Record3D live streaming into an existing VFX Graph.

What will you need?

• An iPhone or iPad with the TrueDepth Camera (FaceID)
• Record3D iOS app (live streaming requires purchase)
• Unity 2019.4.11 or newer
• Make sure you have installed iTunes (on Linux, you will need to install libusbmuxd-dev package — should be installed on Ubuntu by default, no action needed)

Before opening the Unity project

This demo depends on the C++ library record3d_unity_streaming which you will either need to build yourself or download pre-built (available only for Windows and macOS, you will need to build it yourslef if you are running on Linux).

Pre-built library for Windows

Only one dll file is needed: record3d_unity_streaming.dll. Make sure it is in PATH — the easiest way is to copy the file into C:\Windows\System32 and/or into C:\Windows\SysWOW64.

Pre-built library for macOS

Similar to Windows, only one dylib file is needed: librecord3d_unity_streaming.dylib. Just copy it into /usr/local/lib/ (create the folder if it doesn't exist yet). Alternatively, you can export it into DYLD_LIBRARY_PATH.

After opening the Unity project

1. The first time you open this project on a new computer, restart Unity and re-open the project (there is a Unity bug due to which you must 1) open this project in Unity, 2) close Unity and 3) re-open the project for it to work correctly). You don't need to do this on subsequent runs.

2. Open the LiveStreaming scene (Assets/LiveStreaming.unity).

3. Connect your iPhone or iPad to your computer via USB cable. To make things easier, try having connected only single iOS device (if multiple iOS devices are connected, you can change the index of USB device in the "Device Index" property of the "Record 3D Stream" Script).

4. Open Record3D, go to the Settings tab and enable "USB Streaming Mode" (purchase required).

5. Go to the Record tab and press the circular red toggle button (you should see "Started, Waiting for Connection" message on your iPhone/iPad).

6. Press the "Play" button in Unity and wait.

7. Live stream should appear — you can now switch into the Scene tab to inspect the live stream.

You can contact me at [email protected] if you have any questions or encounter problems.