Which Twitch events does it react to?

Subscriptions, gift subs, cheers (bits), follows, raids, and hype train begin, progress and end. Each is mapped to its own visual treatment rather than a generic flash: a raid pulls the camera back and sends a bright band outward, a hype train holds a slow sustained swirl for as long as the train runs, bits sparkle, and a follow is a soft ripple.

How is this different from StreamElements or Streamlabs alerts?

Those show an alert card — an image, a name, a sound — in one corner of your layout. Vortexia changes the entire background instead. They are complementary rather than competing: most streamers keep their alert box and use Vortexia as the reactive backdrop underneath it. Vortexia also connects to Streamlabs directly if you already use it.

Why can other visualizers not do this?

Because they are audio tools. Butterchurn, Synesthesia, Resolume and Magic Music Visuals analyse an incoming waveform, which is a different input entirely. Reacting to a raid requires an authenticated connection to Twitch and a webhook listening for EventSub notifications. That is a streaming-platform integration, not a DSP feature, so it is not something an offline VJ application can add.

Do I have to be live for it to work?

For real events, yes — Twitch only sends them during a broadcast. But you do not have to wait to see the effects: the dashboard has manual trigger buttons for sub, donation, raid, hype train, bits and follow, plus keyboard shortcuts and trigger links, so you can rehearse each one or fire them deliberately during a stream.

Does a hype train really last the whole train?

Yes, and it is treated differently on purpose. A sub is a two-second event, so a fast colour flash reads as celebration. A hype train can run for minutes, and the same flash at that length would be genuinely unpleasant, so the hype train gets a slow sustained swirl and a steady saturation lift instead of strobing.

Twitch is available on the free tier, which renders at 720p with a small watermark. Plus at $4.99/month removes the watermark, unlocks 1080p at 60fps, adds YouTube, Kick and TikTok, and unlocks all eight engines including the 3D ones.

AUDIO-REACTIVE VISUAL · UPDATED 2026-08-14

Animated Twitch Alert Visuals

Name: Vortexia
Author: Yousef @ Vortexia

Subs, bits, raids and hype trains each drive their own effect

Animated visual effects that react to Twitch subs, follows, and donations in real-time. Free browser-based tool. No StreamElements account needed.

Open the dashboard · Watch it live · All presets · Pricing

What is Animated Twitch Alert Visuals?

Vortexia reacts to real Twitch events, not just to sound. When a sub, a cheer, a raid or a hype train fires, your whole background responds — and each event gets a different treatment, so a raid does not look like a follow. Connect Twitch once in the dashboard and Vortexia subscribes to EventSub for subs, gift subs, cheers, follows, raids and all three hype-train stages; the visual then changes within a second of the event landing. This is the part audio visualizers cannot do. Butterchurn, Synesthesia, Resolume and Magic Music Visuals all analyse sound extremely well, but none of them has any connection to your Twitch channel, so none of them can know a raid happened. Alert tools like StreamElements and Streamlabs do know, but they show a pop-up card in a corner rather than driving your full-screen background. Vortexia sits in the gap: platform-aware, full-frame, and added to OBS as a single Browser Source URL with no download. The free tier includes the six 2D engines at 720p with a small watermark; Plus is $4.99/month.

How to use Animated Twitch Alert Visuals

Connect Twitch. In the Vortexia dashboard open the Platforms tab and connect Twitch. Vortexia registers the EventSub subscriptions for you — there is nothing to configure by hand.
Rehearse the reactions. Use the RAID, HYPE, BITS and FOLLOW buttons in the dashboard to see each treatment before you go live. Meeting an effect for the first time in front of an audience is not the moment to discover you dislike it.
Add it to OBS. Copy your viewer URL into an OBS Browser Source at 1920x1080 and place it beneath your webcam, game capture and alert box.

Specs & output

Engine	Chaos Prime
Render Mode	nemesis
Iteration Depth	85
Default Zoom	1.40
Colour Shift	45°
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	2026-08-14

Frequently asked questions

Which Twitch events does it react to?: Subscriptions, gift subs, cheers (bits), follows, raids, and hype train begin, progress and end. Each is mapped to its own visual treatment rather than a generic flash: a raid pulls the camera back and sends a bright band outward, a hype train holds a slow sustained swirl for as long as the train runs, bits sparkle, and a follow is a soft ripple.
How is this different from StreamElements or Streamlabs alerts?: Those show an alert card — an image, a name, a sound — in one corner of your layout. Vortexia changes the entire background instead. They are complementary rather than competing: most streamers keep their alert box and use Vortexia as the reactive backdrop underneath it. Vortexia also connects to Streamlabs directly if you already use it.
Why can other visualizers not do this?: Because they are audio tools. Butterchurn, Synesthesia, Resolume and Magic Music Visuals analyse an incoming waveform, which is a different input entirely. Reacting to a raid requires an authenticated connection to Twitch and a webhook listening for EventSub notifications. That is a streaming-platform integration, not a DSP feature, so it is not something an offline VJ application can add.
Do I have to be live for it to work?: For real events, yes — Twitch only sends them during a broadcast. But you do not have to wait to see the effects: the dashboard has manual trigger buttons for sub, donation, raid, hype train, bits and follow, plus keyboard shortcuts and trigger links, so you can rehearse each one or fire them deliberately during a stream.
Does a hype train really last the whole train?: Yes, and it is treated differently on purpose. A sub is a two-second event, so a fast colour flash reads as celebration. A hype train can run for minutes, and the same flash at that length would be genuinely unpleasant, so the hype train gets a slow sustained swirl and a steady saturation lift instead of strobing.
Is it free?: Twitch is available on the free tier, which renders at 720p with a small watermark. Plus at $4.99/month removes the watermark, unlocks 1080p at 60fps, adds YouTube, Kick and TikTok, and unlocks all eight engines including the 3D ones.

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.