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Tunnels effect

Prism Tunnel

Prism Tunnel is a tunnel and feedback effect in FRCTL, the browser VJ studio. Radial tunnel refraction with RGB edge separation.

Runs live on video, images, a camera or generated art. Stack it with any other effect, and route LFOs, envelopes or any of ten audio bands to its controls so it moves with the music.

Try Prism Tunnel free All effects

The untouched demo art: an eye inside a triangle over wavy teal, blue and peach lines — Source

The eye-in-triangle with red and blue fringes along the triangle and its wavy lines, faintly rippled — Prism Tunnel, default settings

What Prism Tunnel does

Rolls five-armed spiral ripples out of the centre that swell and shrink the picture like a warped lens, while the frame wobbles slightly in rotation. Red and blue pull apart along the radius, so fringes widen toward the edges. Tunnel packs the ripples tighter, Zoom drives the lens swell, wobble and fringe width together, and Blend sets how much replaces the source.

Using Prism Tunnel

Where it works: Keeps the art recognisable while it shimmers, so it suits a logo sting or a Reel where the subject has to read in the first second. The fringing also gives flat vector art some lens depth.
With the music: The ripples scroll on the clock with no audio input. Send B3 (bass body) to Zoom so basslines throw the fringes wide and bend the lens, and a bar-synced LFO on Tunnel tightens the ripples through each bar.
Starting point: Tunnel centre, Zoom a quarter, Blend centre, then raise Zoom until red and blue edges show clearly on the outer lines.

Controls

Tunnel: Radial tunnel frequency vs intensity.
Zoom: Tunnel zoom and roll wobble amplitude.
Blend: Blend toward the tunnel sample.
Speed: Rate of the effect motion. Centre is the authored speed, hard left a tenth of it.

Pairs well with Prism Tunnel