360° projection dome for real-time visualization — director and VFX supervisor experience environments in full spatial immersion. Industry standard for previs and virtual production.
Anyone working on a large production team in previs or virtual production today will inevitably encounter this dome. The Iwerksphere 870 is a 360° projection hemisphere with a diameter of just under 2.70 meters – large enough for a director, VFX supervisor, and technical operator to move through a digital environment in real-time together. The system projects onto the inner surface, making the view in all directions feel immersive. No flat screen, no monitor window – you are actually sitting in the world.
The practical benefit is considerable. During the previs phase, a director can immediately feel what a camera movement through a space is like, which sightlines work, where the action is visually stifled. This is crucially faster and more intuitive than sitting in front of a 4K monitor and imagining spatial relationships. The VFX supervisor can simultaneously check if the planned scenery is technically feasible, where performance issues arise, or if effects seem too intrusive. On the LED wall on set (e.g., a volume installation for in-camera VFX), the Sphere later serves as a reference – the director already knows the environment from the 3D space and can make decisions faster.
Technically, it runs via a high-end render engine like Unreal Engine or similar real-time systems. Latency must be low enough for navigation to feel fluid. A game controller or joystick is typically used to fly through the environment. For larger productions, the Sphere is coupled with motion capture – the cinematographer can simulate a real Steadicam movement with real lenses, and the Sphere follows the camera movement live. This is a tremendous advantage for planning actual shot choreography.
The Iwerksphere 870 has become the standard in high-budget productions – not because it's cheap, but because the time savings in previs and production put these costs into perspective. Directors and their teams make better spatial decisions earlier, and rework is significantly reduced. Anyone who has stood inside it and experienced a 360° sky with real lighting conditions around them understands why it's hard to go back to 2D monitors afterward.