Developer FAQ

General topics

• How to collect eye tracking analytics?
• Can I use depth occlusion and chroma key simultaneously?
• How to fix yellow tint in realtime reflections?
• How to see Unix Time of an eye tracking recording in Varjo Analytics Window?

Native SDK

• How can I display the final composited image on my application the same way it appears in Varjo Base?
• How can I access a mixed reality or eye tracking video?
• How to access SteamVR base station location or room size data?

Tracking Plugin SDK

• How can I use Advanced Realtime Tracking (ART) with Varjo?
• How can I use OptiTrack with Varjo?

Unity SDK

• How to use SteamVR, Vive or Tundra trackers in Unity?
• How to recenter or reset camera position and rotation in Unity?
• How to render an object to one eye only?
• Where can I find Unity examples?
• How to get a mixed reality video to Unity?
• How to rearrange XR Plugin-in loaders?

See less ▼

Unreal SDK

• Why is Lumen not working?
• Why are Vive / SteamVR trackers not working in Unreal Engine 5.0/5.1?
• Why does an Unreal Engine built project show black screen in the headset?
• What is the best way to implement hand tracking interactions in Unreal Engine 5?
• Why is the "Play in editor" button for VR preview greyed out/disabled in Unreal Engine?
• Why do Eye tracking and hand tracking not work in an Unreal Engine project?
• Dark square is displayed in focus area in the middle of the screen

See less ▼

Varjo Lab Tools

• Is it possible to create masks that allow a combination of real-life and virtual content?