Turn Your Projector into a Light Show — Automatic audio detection for any room. Vortexia turns any browser into an audio-reactive visual engine — useful here as turn your projector into a light show. The Neon Pulse engine renders high-intensity plasma and bass-locked strobes built for drops via WebGL, picks up the audio the host machine is playing, and outputs a clean canvas you can route into OBS, Streamlabs and any other broadcasting software as a Browser Source or fullscreen on a projector. There is nothing to install. Free tier covers 720p with a watermark; Plus is $49.99/year for 1080p/60; Pro is $119.99/year for 4K/60 with custom shader uploads and priority support. Customize colour shift, zoom and iteration depth from the dashboard, then save the result as a preset and reuse the same viewer URL across every session — so the visual is consistent every time you open it.
How to use Turn Your Projector into a Light Show
Customize the visual. Open the Vortexia dashboard, choose the Turn Your Projector into a Light Show preset, and adjust colour shift, zoom and iteration depth until it matches your show.
Copy the viewer URL. Click "Get Browser Source URL" — Vortexia will give you a permanent URL that loads this exact configuration anywhere.
Add it to OBS, Streamlabs and any other broadcasting software. In OBS, Streamlabs and any other broadcasting software, add a new Browser Source, paste the viewer URL, and set the canvas to 1920×1080 (or 1080×1920 for vertical). The visual is live as soon as the source loads.
Route your audio. Make sure the browser tab can hear the audio you want it to react to — most streamers route their stream output through a virtual audio cable so Vortexia and OBS hear the same mix.
Specs & output
Engine
Neon Pulse
Render Mode
inferno
Iteration Depth
65
Default Zoom
1.80
Colour Shift
60°
Output (Free)
720p / 30fps + watermark
Output (Plus)
1080p / 60fps, no watermark
Output (Pro)
4K / 60fps, custom shader uploads
Audio Source
Browser tab audio (FFT, real-time)
Last Updated
2026-06-04
Frequently asked questions
Is Turn Your Projector into a Light Show really free?
Yes. The free tier of Vortexia runs at 720p with a small corner watermark, on a single platform. Plus ($49.99/year) removes the watermark at 1080p/60 across multiple platforms, and Pro ($119.99/year) ships 4K/60 with custom shader uploads. There is also a $149 one-time lifetime licence.
How do I add Vortexia to OBS, Streamlabs and any other broadcasting software?
Open the Vortexia dashboard, customize the visual, click "Get Browser Source URL" and copy it. In OBS, Streamlabs and any other broadcasting software, add a Browser Source, paste the URL, set the canvas to 1920×1080 (or 1080×1920 for vertical), and the visual is live. Audio reactivity uses the audio Vortexia hears — most streamers route their existing stream output to the browser tab.
Does it actually react to the music or is it pre-rendered?
It's fully generative and runs in real time on your GPU. The Neon Pulse engine performs a live FFT on the audio and drives bass, mid and treble bands separately — kick drums, leads and pads each pull their own motion. No two seconds of output look the same, which is why it doesn't end up looking like a 30-second .webm loop on repeat.
Will it slow down my stream?
Vortexia runs on your GPU, not your CPU, so it doesn't fight OBS's encoder for the same resources. On a modern laptop GPU the engine renders comfortably at 1080p/60. If you're on integrated graphics, drop the canvas to 1280×720 in the Browser Source settings — the visual still looks clean because the fractal motion isn't resolution-dependent.
Does it work on Mac, Windows and Linux?
Yes. Because Vortexia is a browser-based WebGL engine, it runs anywhere a recent Chrome, Edge or Firefox does — including Mac, Windows, Linux, ChromeOS, and the embedded Chromium that ships with OBS Browser Source.
About the author
Yusuf @ Vortexia — Vortexia Engine Creator.
Yusuf builds Vortexia — a browser-based, GPU-accelerated audio-reactive visual engine used by streamers and DJs on Twitch, Kick, YouTube Live and TikTok Live.