Underwater backgrounds are calming precisely because the light keeps shifting, which is exactly what a short video loop cannot sustain - the eye learns the cycle. Vortexia computes the caustics live, so the ripple never repeats, and it reacts to sound: the water stirs on the low end and stills when the room goes quiet. Open vortexia.live/ambient and choose Deep Ocean, which is free and needs no account. It runs in a browser tab, so it works as an OBS Browser Source or on a second screen behind you when you stream from a phone.
How to use Underwater Light, Moving With Your Audio
Open it. Go to vortexia.live/ambient - it opens immediately with no account.
Choose Deep Ocean. Step to Deep Ocean with the arrows, then tap Start so it can hear your music.
Use it on stream. Add the viewer URL to OBS as a Browser Source below your webcam, or prop the screen behind you for a phone stream.
Specs & output
Engine
Chaos Prime
Render Mode
flux
Iteration Depth
90
Default Zoom
1.00
Colour Shift
200°
Output (Free)
720p / 30fps + watermark
Output (Plus)
1080p / 60fps, no watermark
Output (Pro)
4K / 60fps, brand-kit logo overlay
Audio Source
Browser tab audio (FFT, real-time)
Last Updated
2026-09-03
Frequently asked questions
Is this an underwater stock video?
No. It is computed live on your GPU from a water-caustics shader, which is why it has no loop point and can respond to audio. A stock clip can do neither.
Can I slow the movement down?
Yes. Lower the audio sensitivity for gentler motion, and reduce the colour shift for a calmer palette. Behind a webcam, slow and dim usually reads better than fast and bright - the background should not compete with your face.
Does it work behind a webcam or a green screen?
Both. In OBS, drag the Browser Source below your webcam so it fills the space behind you, and if you use a green screen apply a chroma key to the camera as normal. Vortexia sits underneath as a background layer.
Do I need an account to try it?
Not to try it. Ambient Mode opens straight from vortexia.live/ambient with no sign-in at all. An account is only needed to save settings and to copy the OBS Browser Source URL.
About the author
Yousef @ Vortexia — Vortexia Engine Creator.
Yousef builds Vortexia — a browser-based, GPU-accelerated audio-reactive visual engine used by streamers and DJs on Twitch, Kick, YouTube Live and TikTok Live.