Player wearing the Sandbox VR active head tracker

SANDBOX VR

ACTIVE HEAD TRACKER

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An active infrared-trackable VR headmount that utilises active markers for low-latency player head motion capture.

Moodboard

Futuristic – Cyberpunk – Sleek – Rugged – Durable

Moodboard collage of rugged, cyberpunk product references

A rugged construction is designed to withstand high-impact experiences.

The combination of matte and glossy finishes, accented by illuminated coloured player LED strips, creates a high-tech and futuristic aesthetic.

Concept sketch sheets for the head tracker
Shelf of 3D-printed appearance models

Low latency streaming

Active IR tracking solution improves tracking accuracy and enables lower-latency motion capture for fast-paced VR experiences. It also delivers more reliable performance in large multiplayer arenas, with fewer tracking dropouts and less interference from ambient lighting.

Diagram comparing passive IR tracking with active IR tracking

Wireless solution

Upgraded from bucky tethered gaming PC backpacks to standalone wireless headsets, enables true free-roam movements and a more immersive gameplay experience, so as to minimise motion sickness for players.

Diagram comparing a tethered backpack setup with a standalone wireless headset

Vive Focus 3

The Active Head Tracker is designed to integrate seamlessly with the HTC Vive Focus 3 without compromising its performance, comfort, or usability.

To deliver a reliable and smooth product lifecycle –
deployment > gear on > in-game experience > gear off > charging > cleaning > maintenance
for both users and operators.

HTC Vive Focus 3 with its housing removed, showing internal components

Internal components

Designed around critical components of the HTC Vive Focus 3, such as antenna, cooling fan, and microphones, ensuring both mechanical and electrical compatibility between products.

Spring and hook attachment system on the headset

Quick mount

Developed a spring- and hook-based attachment system for secure mounting, enabling a fast, tool-free installation onto the HTC Vive Focus 3.

Power connection detail on the headset

Power supply

Powered directly by HTC Vive Focus 3, eliminating the need for a separate battery and external charging system, while minimising over product weight.

Audio cable routed along the headset strap

Audio cable routing

Implemented an audio connection system between the HTC Vive Focus 3 and headphone with efficient cable management, allowing all components to work as a set.

Silicone face shield wrapped around the magnetic face cushion

Silicone face shield

Designed to wrap around the magnetic face cushion, enabling easy removal for cleaning and improved hygiene.

Prescription lens inserts fitted inside the headset

Shortsighted lens

Custom prescription lens inserts for the headset, enhancing comfort and visual clarity for nearsighted users.

Quality testing

Worked closely with hardware engineers to design unique marker patterns for different players.

The parameters of active LEDs were extensively tested and optimized in real in-store environments, which significantly improved detection accuracy and tracking stability under varying lighting conditions.

Prototype head tracker under test next to a laptop
LED wavelength and beam angle test board

CMF selection

Darkened IR-transmitting polycarbonate is selected for its high impact strength and heat resistance, while effectively concealing the internal components.

A glossy surface finish to minimise IR refraction, hence maximising transmission efficiency.

Underside of the head tracker with illuminated player LEDs

Easily Accessible UI

Allows quick control and instant status check for store staff

Annotated control panel showing player ID, status LED indicator, and player switching button

Full set

Complete set: active head tracker, silicone face shield, headphone, and audio spiral cable

In context visuals

Head trackers charging on a store rack
Store staff fitting a headset onto a player
Players gearing up before a session
Players mid-game wearing the head trackers