Your system asks for reduced motion, so VFX-JS draws nothing. Demos on this site show plain HTML.

Type

RefractionEdgeWrap

effects/src/pattern-refraction.ts:149 ↗
import type { RefractionEdgeWrap } from "@vfx-js/effects";
type RefractionEdgeWrap = "zero" | "clamp" | "repeat" | "mirror"