Live Sets in the Dome

🎛️ Why Live Matters

Most fulldome content is pre-rendered — painstakingly crafted frame by frame, then played back on dome projection systems. But live performance flips that model entirely. Instead of pressing play, an artist generates visuals and sound in real time, responding to the audience, the music, and the moment.

This isn't new. The SAT (Société des arts technologiques) in Montréal has been hosting live performances in its Satosphère since 2011. Planetariums in Berlin and Hamburg regularly program concerts under the dome. And a new generation of VJ tools — led by TouchDesigner and Resolume — has made it possible for a single laptop to drive an entire dome in real time.

The result is a fundamentally different art form: one where the dome becomes an instrument, not a screen.

🔗 How It Works: Signal Flow

A live dome performance requires a chain of software and hardware to get real-time visuals from an artist's laptop onto the curved surface of a dome. Here's the typical signal flow:

Key Protocols

• Syphon (macOS) / Spout (Windows) — GPU-level frame sharing between applications on the same machine. Zero-copy, near-zero latency. This is how a VJ tool sends its output to a dome mapping application.
• NDI (NewTek) — network-based video streaming protocol. Higher latency than Syphon/Spout but works across machines. Used when content generation and dome mapping run on separate computers.
• OSC (Open Sound Control) — network protocol for sending control messages between software. Used to sync visual parameters with audio, trigger cues, or connect sensors.
• MIDI — hardware controller protocol. Faders, knobs, buttons → software parameters. Still the most common way to physically control a live dome show.
• DMX — lighting control protocol. Used when dome performances include stage lighting, LED fixtures, or other show elements beyond projection.

Latency Considerations

For live performance, latency is everything. The chain from artist input to dome projection needs to feel instantaneous. Syphon/Spout achieve this with shared GPU textures (sub-millisecond). NDI adds 1–3 frames of latency. The projectors themselves add 1–2 frames depending on processing. Total glass-to-glass latency for a well-configured dome: 30–80ms — acceptable for VJing, tight for live musical synchronization.

🖥️ Software Tools for Live Dome Performance

The toolchain for live dome work has matured significantly. Here are the key applications, from dedicated dome tools to creative coding environments.

🎯 Deep Dive: Choosing Your Approach

The tool grid above gives you the landscape. Now let's go deeper into how each approach actually works for live dome performance — what it feels like to build with, where it excels, and where it falls short.

📊 At a Glance

🔗 Hybrid Workflows

The best live dome shows almost always combine tools:

Spout (Windows) and Syphon (macOS) enable zero-latency GPU texture sharing between applications. NDI extends this over the network. OSC is the universal control layer — any tool that speaks OSC can talk to any other.

🔊 Spatial Audio: Don't Ignore It

The standard: Higher Order Ambisonics (HOA). Encode your soundfield at 3rd order or higher (16+ channels), then decode to your venue's speaker layout. The IEM Plugin Suite (free, from the Institute of Electronic Music and Acoustics in Graz) is the practical entry point. For more sophisticated work: IRCAM Spat~ 5 in Max/MSP handles irregular speaker arrays with object-based spatialization.

Minimum viable dome audio: a stereo or ambisonics signal decoded to a ring of 8+ speakers. You won't get full-sphere localization, but you'll have the immersion of sound surrounding the audience.

🏛️ Venues for Live Dome Performance

Not every dome supports live performance. Most planetariums are built for playback — pre-rendered content served from a media server. These venues have made live performance a core part of their programming.

🎭 Performance Formats

Live dome performance isn't one thing — it's a spectrum of approaches, from reactive VJing to fully coded algorithmic art.

🎬 Featured Performances & Videos

Selected examples of live dome performance — from SAT Montréal's Satosphère to planetarium concerts and VJ sets. These demonstrate the range of what's possible when the dome becomes a live instrument.

🎤 Artists to Watch

The live dome scene is still small enough that you can know the key players. These artists and collectives are pushing the form forward.

🚀 Getting Started: Your First Live Dome Show

Want to perform live in a dome? Here's a practical path from zero to dome.

Common Pitfalls

• Resolution expectations. Real-time rendering at 4K×4K domemaster (what large venues need) requires serious GPU power. Start at 2K×2K and optimize.
• Zenith blindness. Artists often focus on the horizon and forget the top of the dome. Always check how your content looks at the zenith.
• Brightness. Multi-projector domes have limited brightness compared to flat screens. Avoid content that relies on bright whites — they'll look washed out. Design for contrast.
• Motion sickness. Fast camera rotations and rolling motions cause nausea in dome environments more than any other display. Keep camera movements slow and deliberate.
• Audio sync. If your visuals are audio-reactive, test latency carefully. A few frames of audio-visual desync can feel deeply wrong in an immersive environment.