Voxon VX2 Volumetric Display

The **Voxon VX2** is a consumer-available volumetric display from **Voxon Photonics** (Adelaide, Australia, founded 2013). Released ~2023-2024 at ~$6,800. It produces genuine 3D imagery viewable from any angle without glasses, headsets, or directional constraints. ## Not a hologram Despite marketing language around 'holograms,' VX2 is a **swept-volume display** — a physical LED panel spinning fast enough that persistence of vision causes the viewer to perceive a continuous 3D image in the swept volume. See What Is a Real Hologram for the distinction. Real holograms record 3D info via laser interference patterns on flat films. They're underwhelming in practice (small viewing angle, no animation, flat source medium). Volumetric displays like VX2 are the actual path to dynamic 3D imagery. ## Verified specs - **Rotation**: 900 RPM (15 Hz, 'fast car wheel on the freeway') - **Voxels per volume**: ~8 million - **Refresh rate**: 30 volumes per second ('God's framerate') - **Display volume**: 256mm × 256mm cylinder (~10 inches) - **Vertical slices per rotation**: ~480 - **Panel updates per second**: 7,200+ (30 fps × 480 slices × 2 panels) - **Data connection**: USB 3.0 only (no Thunderbolt, no HDMI) - **Power + data to spinning panel**: wireless inductive power + wireless data - **Consumer price**: $6,800 ## Four engineering challenges solved ### 1. Spin speed Maintaining 900 RPM mechanical rotation requires managing rotational stress, bearing wear, vibration damping, and thermal management. At 900 RPM the panel experiences centripetal acceleration sufficient to bend a thin LED panel — solved with an aluminium rigidifying frame and laminar airflow design. ### 2. Slice timing precision Each of ~480 angular slices must display at the exact correct rotational position. Motor RPM drifts; if a slice is milliseconds off its target angle, the image flickers or jumbles. Requires precise rotational position feedback via encoder, closed-loop timing error correction, and real-time pre-computation of next-slice buffers. ### 3. Data + power to spinning component No slip rings (wear). Solution: **wireless inductive power** (like Qi charging) + **wireless data at 7,200+ updates/sec bandwidth**. Most commercial wireless data systems don't reach that bandwidth. Voxon built a custom short-range high-bandwidth channel. ### 4. LED panel rigidity at 900 RPM Centripetal force wants to bend the thin LED substrate. Solutions: - Aluminum sandwich frame between two LED panels for structural rigidity. - **Laminar airflow design**: the internal airflow around the rotating panel is engineered to move smoothly with rotation, avoiding turbulence vibration that would couple to the panel. ## Ken Silverman connection The graphics engine was written by **Ken Silverman** — in the mid-1990s he wrote the **Build engine** used in Duke Nukem 3D (1996), Shadow Warrior, Blood, and a dozen other late-90s shooters. The Build engine was famous for efficiency — 3D-looking gameplay (sloped floors, variable-height ceilings, room-over-room construction) on 1996 consumer hardware that 'shouldn't' have been able to handle it. Silverman joined Voxon Photonics as Chief Computer Scientist in early 2013. The skill transfer is direct: squeeze 3D rendering through bandwidth that shouldn't allow it. Without his engine, VX2 is just a fast spinning LED panel — there's no other practical way to push voxel data through USB 3.0 at the required rate. See also Ken Silverman and the Build Engine. ## Limitations (honestly admitted) - Not the highest resolution display. - Not the most color accurate. - Visible flicker when viewed in person. - No content ecosystem yet (McLaren P1 / no roads metaphor — powerful hardware, no media for it). ## 'Digital campfire' framing VX2 is the first consumer-accessible **shared spatial display**. Observers can stand around the device and see the same content from 360° while seeing each other through the transparent volume. Phones, monitors, TVs, VR headsets, and AR glasses are individual or directional experiences. Volumetric displays reverse that trend back toward communal viewing — hence the 'digital campfire' framing. ## Market position (2026) Volumetric displays are the actual frontier of glasses-free consumer 3D. Real holograms are niche art/engineering (no animation pipeline). Pepper's Ghost and projection effects look great in controlled venues but are fundamentally 2D. VR/AR headsets remain pragmatic for individual immersive 3D. VX2 use cases: museum installations, architectural visualisation, molecular modeling, medical imaging, trade-show signage, specialty professional applications. Not a consumer mass-market product yet. ## Voxon product line - VX1 (2017): smaller, earlier generation. - VX2 (2023): current consumer product. - VX2-XL (2024): world's largest volumetric display (not mentioned in the MKBHD The Studio coverage). ## Meta-pattern Same engineering ethos as The Original 80KB Windows Task Manager and 1996-era game engines — squeeze rendering through bandwidth that shouldn't allow it. Constraints force creativity. Persists in modern niche hardware projects.