Motion

Gooey Backdrop and Headline Roll

A practice product page with two hand-tuned interactions: a gooey WebGL backdrop that tracks the pointer, and a headline column that rolls one line per click.

Gooey Backdrop and Headline Roll

Overview

A single-page practice build carrying two interactions wired by hand: the photography behind the page is displaced by a WebGL layer that tracks the pointer, and the headline column rolls one line per click.

Approach

Shery's imageEffect mounts a three.js plane over the backdrop and drives a turbulence-displacement shader through it with the gooey branch enabled and pointer input on. The library's defaults are only a starting point — noise scale, metaball radius, displacement amount and the discard and antialias thresholds are each pulled off their initial values until the distortion reads as the image itself moving rather than as a filter sitting on top of it.

The headline is a stack of lines advanced by offsetting top by one hundred per cent of the line height with a steep ease. A flag ignores clicks while a transition is in flight, and the line that just left is repositioned below the stack in the tween's completion callback, which is what lets the sequence loop indefinitely with no measurement and no DOM churn.

Tech stack

Notes

The page is laid out with placeholder copy deliberately: it exists so the two effects can be pushed without worrying what they do to a real layout. Nothing moves until the pointer does or a line is clicked, so the still on this card is the flattest it ever looks.