FluxPose: An occlusion free 6DOF FBT tracking system
- BackerBuzz
- Dec 4
- 3 min read
A drift-free, occlusion free 6DOF tracking solution for FBT, robotics, gloves, DIY and more
The Holy Grail of VR? FluxPose Promises Perfect, Occlusion-Free Tracking
For years, VR enthusiasts have had to pick their poison when it comes to Full Body Tracking (FBT). You either suffered the dreaded "drift" of IMU-based trackers (like SlimeVR) or you dealt with the "occlusion" blind spots of optical base stations (like the HTC Vive). FluxPose has arrived on Kickstarter claiming to solve both problems at once, offering a portable, drift-free system that can track you even under a blanket.
Project Overview
Name: FluxPose: An occlusion free 6DOF FBT tracking system.
Creator: Alejandro Cabrerizo (based in Logroño, Spain).
Status: Live on Kickstarter (Ends January 28, 2026).
What It Is: FluxPose is a 6DOF (Six Degrees of Freedom) tracking system that uses electromagnetic fields instead of cameras or lasers. It consists of a wearable "Beacon" (which acts as a hip tracker) that generates a magnetic field, and small "Trackers" that sense their exact position within that field. Because magnetic fields pass through your body and furniture, it offers true occlusion-free tracking without the need to mount base stations on your walls.
Key Features
True Occlusion-Free Tracking: Unlike camera-based systems, FluxPose does not need a "line of sight." You can cross your arms, curl up in a ball, or hide under a blanket, and the system will not lose track of your limbs.
Absolute Positioning (No Drift): While IMU trackers guess your position and eventually "drift" away, FluxPose knows exactly where each tracker is relative to the beacon. This means you never have to do the "T-pose calibration dance" in the middle of a game.
Magnetic Interference Solution: Historically, magnetic tracking suffered from interference near metal objects. FluxPose tackles this by alternating the beacon's magnetic field polarity roughly 20,000 times a second, allowing the system to filter out "noise" from the environment.
Incredible Battery Life: The trackers are rated for up to 24 hours of continuous use on a single charge. The beacon lasts between 6 to 24 hours depending on the power mode you select.
Featherweight Design: Each tracker weighs just 15 grams (about the weight of three grapes), making them significantly lighter than most competitors.
Rewards and Pricing
The Kickstarter offers a few tiers depending on how many points of tracking you need. (Note: Prices are estimates based on Euro conversion and exclude tax/shipping).
Lite Kit (~€339 / $360): Includes the Dock, Beacon, and 3 Trackers. This is the minimum setup for full-body tracking (using the beacon as the hip tracker + 2 feet + 1 headset reference).
Core Kit (~€479 / $510): Adds 2 more trackers (5 total) for tracking knees or elbows.
Pro Kit (~€689 / $730): The ultimate setup with 8 trackers, allowing for chest, elbows, knees, and feet tracking all at once.
Important Note: The kits do not include straps. The creator decided to sell them as separate add-ons so users could save money if they wanted to DIY their own mounting solutions.
Concept and Tech
The core innovation here is the modernization of electromagnetic tracking. This technology isn't new (it was used in the old Razer Hydra controllers), but it was historically expensive, wired, and heavy. Alejandro Cabrerizo and his team have miniaturized the tech, made it wireless, and fused it with modern IMUs. By placing the "base station" (the Beacon) on your body, your tracking volume moves with you, effectively creating a portable bubble of perfect tracking that follows you wherever you go.
Delivery Timeline
Backers can expect to wait a bit for this leap in technology. The Early Bird units are estimated to ship in August 2026, with the standard tiers following in October 2026.
