Radiance review
A capable open-source choice for shader-driven live visuals, beat detection, and projection mapping.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Radiance is free, open-source video art software for VJs and live performers who need generated visuals across desktop operating systems. It connects shader effects with video clips, images, webcams, live streams, and YouTube videos, then uses beat detection to synchronize visuals with incoming audio. Distribution covers Windows, macOS, and Linux, making Radiance suitable for performers and visual artists who want an open-source desktop tool rather than a browser-based service.
Its standout strength is the combination of breadth and control. Radiance includes over 150 preloaded effects, GPU-accelerated shader processing, and live WGSL shader editing. That gives users both a ready-made library and a path to modify or create shader-driven visuals. MPV and yt-dlp integrations support parts of its media and online-input workflow, while video clips, images, webcams, live streams, and YouTube videos provide several ways to feed content into a performance. This makes it a stronger fit for creative experimentation than for a narrowly defined audio-only visualizer.
Radiance also addresses venue and installation needs with multi-screen output and a projection-mapping editor. Those capabilities make it relevant to live shows, visual installations, and performances that extend beyond a single display. The trade-off is focus: live WGSL editing and projection mapping may be more involved than needed for someone seeking a small preset-based visualizer. Choose Radiance for open-source desktop visuals with shader customization, beat detection, and flexible output. Choose another type of tool if your priority is a browser or mobile workflow, or a simpler interface centered only on quick audio-reactive effects.
Radiance pros and cons
- Where it wins
- 150+ preloaded GPU-accelerated shader effects
- Beat detection, multi-screen output, and projection mapping
- Runs on Windows, macOS, and Linux
- Where it doesn't
- Desktop-only distribution excludes browser and mobile workflows
- Live WGSL editing favors users comfortable with shader code
- Its broad live-performance toolkit may exceed simple visualizer needs
Radiance fact sheet, pricing and score →
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