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https://github.com/spatialfree/openxr_tracker_extenuation
A cross-platform bridge that makes OpenVR tracker data available to OpenXR applications through a simple IPC interface
https://github.com/spatialfree/openxr_tracker_extenuation
cpp cross-platform csharp ipc openvr openxr virtual-reality vr-tracking
Last synced: 3 days ago
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A cross-platform bridge that makes OpenVR tracker data available to OpenXR applications through a simple IPC interface
- Host: GitHub
- URL: https://github.com/spatialfree/openxr_tracker_extenuation
- Owner: spatialfree
- License: mit
- Created: 2025-02-16T08:32:32.000Z (5 days ago)
- Default Branch: main
- Last Pushed: 2025-02-16T12:40:43.000Z (4 days ago)
- Last Synced: 2025-02-16T13:51:03.342Z (4 days ago)
- Topics: cpp, cross-platform, csharp, ipc, openvr, openxr, virtual-reality, vr-tracking
- Language: C++
- Homepage:
- Size: 40 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# OpenXR Tracker Extenuation
A cross-platform bridge that makes OpenVR tracker data available to OpenXR applications through a simple IPC interface.
## Why?
OpenXR is becoming the standard for VR development but doesn't support additional trackers (beyond HMD and controllers). This tool bridges that gap by:
1. Reading tracker data through OpenVR
2. Making it available through IPC (Named Pipes on Windows, Domain Sockets on Linux)
## Features
- Real-time position and rotation data from VR trackers
- Cross-platform: Windows and Linux support
- Low latency (~0.1-0.5ms)
- High performance (matches VR system capabilities, up to 1000Hz)
- Simple C# client included
## Quick Start
### 1. Build and Run Server
```bash
mkdir build && cd build
cmake ..
cmake --build . # or 'make' on Linux
./openxr_tracker_extenuation
```
The server creates an IPC endpoint with a platform-specific path:
- Windows: `\\.\pipe\openxr_tracker_extenuation` (Named Pipe)
- Linux: `/tmp/openxr_tracker_extenuation` (Unix Domain Socket)
### 2. Use in Your C# Application
The C# client automatically handles platform-specific IPC details, so your code remains the same on both Windows and Linux:
```csharp
// At startup:
await TrackerReader.Initialize(); // Automatically uses the correct IPC method for your platform
// In your frame loop:
if (TrackerReader.TryGetLatestPoses(out var poses))
{
foreach (var pose in poses)
{
if (pose.Valid)
{
// Use tracker data:
// Position: pose.X, pose.Y, pose.Z (meters)
// Rotation: pose.Qw, pose.Qx, pose.Qy, pose.Qz
// ID: pose.Serial
}
}
}
// At shutdown:
TrackerReader.Shutdown();
```
## Requirements
- CMake 3.12+
- C++17 compiler
- OpenVR library
- Windows or Linux
## Performance
- Latency: ~0.1-0.5ms
- Update Rate: Matches system capabilities (typically 90-144Hz)
- Memory: < 10MB
## Architecture
```
OpenVR -> C++ Server <-> IPC Channel <-> C# Client -> Your Application
```
## Contributing
Contributions welcome! Areas of interest:
- Additional client implementations
- Performance optimizations
- Enhanced error handling
## Notes
- Set `OpenVR_INCLUDE_DIR` environment variable if OpenVR headers aren't found
- See `csharp_client/README.md` for detailed C# usage