Comparison
RenderWave vs Radiance
Radiance is a genuinely free, open-source VJ app written in Rust with a WGSL shader library. RenderWave is a polished Mac-native Metal 3 instrument. Both are modern and Apple-Silicon-friendly. They differ in philosophy, polish, and price.
RenderWave
- ✓Native Swift + Metal 3 on Apple Silicon
- ✓85 curated production shaders, 26+ params each
- ✓Per-band audio modulation (bass/mid/treble)
- ✓MIDI Learn, APC40 mkII + Launchpad LED feedback
- ✓Ableton Link, Syphon output, 8K MetalFX
- ✓Vendor-grade support and documentation
Starting from
Free
Studio from $9.99/mo · $299 perpetual
Radiance
- ✓Open source, AGPL-3.0, free forever
- ✓Modern Rust + WGSL architecture
- ✓~150 WGSL effects, deck-based mixing
- ✓Built-in beat detection, audio-reactive
- ✓Cross-platform (runs on Apple Silicon via Rust)
- ✓No watermark, no time limit, no nag screens
License
Free
AGPL-3.0 · commercial use permitted
Feature Comparison
RenderWave's curated Metal 3 instrument vs Radiance's open-source Rust engine. See full features and pricing.
| Feature | RenderWave | Radiance |
|---|---|---|
| Architecture | Swift + Metal 3 | Rust + WGSL |
| Shader Library | 85 curated | ~150 WGSL |
| Real-Time Parameters | 26+ per shader | Varies |
| Audio Reactivity | Per-band targeting | Beat detection |
| MIDI Control | ✓ Full + LED feedback | Limited |
| Ableton Link | ✓ Built-in | Beat detection only |
| Syphon Output | ✓ Yes (Studio) | ✓ Yes |
| Max Output | 8K (MetalFX) | Unlimited |
| License | Proprietary + free tier | AGPL-3.0 open source |
| Platform | Mac only (Apple Silicon) | Cross-platform |
| Support / Docs | Vendor-grade | Project-grade |
When each is right
Choose RenderWave if
- You want a polished Mac-native instrument you can play live out of the box.
- MIDI hardware (APC40, Launchpad) and Ableton Link are part of your rig.
- You need 8K output, Syphon routing, or custom overlays.
- You want vendor support and tuned, thermal-tested shaders.
Choose Radiance if
- Free and open source is a hard requirement for your show or ethics.
- You value a modern Rust + WGSL architecture and want to read or modify the source.
- Your show is small-venue DJ visuals and you don't need pro routing.
- You're comfortable with community-grade docs and support.
Frequently Asked Questions
- Is Radiance VJ software free?
- Yes. Radiance is AGPL-3.0 licensed and free forever, including commercial use under the AGPL terms. There is no paid tier, no watermark, no time limit, and no upgrade prompt. The source lives at github.com/zbanks/radiance. RenderWave has a free tier (full shader catalog, 720p, no watermark) plus paid Studio plans from $9.99/mo.
- Is Radiance a good RenderWave alternative?
- For open-source purists who want a modern, performant, no-strings VJ tool, yes. Radiance is written in Rust with a WGSL shader library, runs cleanly on Apple Silicon, and ships around 150 effects with beat detection and audio reactivity. RenderWave is the stronger choice if you want a polished Mac-native Metal 3 instrument with vendor-grade support, 85 curated production shaders, MIDI/Ableton Link tooling, and 8K MetalFX output.
- Does Radiance run natively on Apple Silicon?
- Radiance runs on Apple Silicon via its Rust runtime, which compiles natively. It does not use Rosetta. RenderWave is built end-to-end on Swift and Metal 3 for Apple Silicon: no abstraction layer, direct access to the unified memory GPU.
- Which has more shaders, RenderWave or Radiance?
- By count, Radiance ships around 150 WGSL effects. RenderWave ships 85 Metal-compute shaders, each curated, parameter-tuned, audio-band-wired, and thermal-tested on M-series Macs before shipping. RenderWave's bet is quality and per-shader control depth over raw count: every shader exposes 26+ real-time parameters.
- Can I use RenderWave and Radiance together?
- Yes. Both can run on the same Mac. A common pattern is to use RenderWave as the primary live instrument (MIDI control, Ableton Link, Syphon output) and keep Radiance available for experimental open-source shaders. They serve different philosophies: commercial polish vs community open source.
Try RenderWave free
Full shader catalog, 720p output, no watermark. See if the Mac-native Metal 3 instrument fits your show before paying.