FFT ocean surface

A displaced ocean surface driven by a real inverse FFT. A Phillips spectrum evolves in frequency space, two compute passes run a shared-memory radix-2 IFFT into a displacement field, and a procedural grid rides it with per-pixel normals, foam and a Fresnel sky reflection under a tunable sunset. Orbit with the mouse; tweak the sea from the panel.

Open fullscreen

"use client";
 
import { useEffect, useRef } from "react";
 
import { createRenderer } from "./renderer";
 
export function Example() {
  const canvasRef = useRef<HTMLCanvasElement>(null);
  useEffect(() => {
    const canvas = canvasRef.current;
    if (!canvas) return;
    const renderer = createRenderer({ canvas });
    void renderer.ready;
    return () => renderer.dispose();
  }, []);
  return (
    <div className="relative h-full w-full overflow-hidden bg-black">
      <canvas ref={canvasRef} className="block h-full w-full touch-none" />
    </div>
  );
}