Components
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Here is Background Snippets Noise effect component
@reapollo
npx shadcn@latest add https://21st.dev/r/larsen66/background-snippets-noise-effect11import React, { useRef, useEffect } from "react";
/** Inline Noise overlay */
const Noise: React.FC<{ patternRefreshInterval?: number; patternAlpha?: number }> = ({
patternRefreshInterval = 2,
patternAlpha = 16,
}) => {
const ref = useRef<HTMLCanvasElement | null>(null);
useEffect(() => {
const c = ref.current; if (!c) return;
const ctx = c.getContext("2d", { alpha: true }); if (!ctx) return;
let f = 0, id = 0; const S = 1024;
const resize = () => { c.width = S; c.height = S; c.style.width = "100vw"; c.style.height = "100vh"; };
const draw = () => {
const img = ctx.createImageData(S, S); const d = img.data;
for (let i = 0; i < d.length; i += 4) { const v = Math.random() * 255; d[i]=v; d[i+1]=v; d[i+2]=v; d[i+3]=patternAlpha; }
ctx.putImageData(img, 0, 0);
};
const loop = () => { if (f % patternRefreshInterval === 0) draw(); f++; id = requestAnimationFrame(loop); };
addEventListener("resize", resize); resize(); loop();
return () => { removeEventListener("resize", resize); cancelAnimationFrame(id); };
}, [patternRefreshInterval, patternAlpha]);
return <canvas ref={ref} className="pointer-events-none absolute inset-0" style={{ imageRendering: "pixelated" }} />;
};
export default function Component() {
return (
<div className="fixed inset-0 -z-10 bg-slate-950">
{/* SaaS Blue spotlight */}
<div className="absolute inset-0 bg-[radial-gradient(circle_620px_at_50%_200px,rgba(37,99,235,0.35),transparent_70%)]" />
{/* Soft grid with top fade */}
<div className="pointer-events-none absolute inset-0 bg-[linear-gradient(to_right,#94a3b81f_1px,transparent_1px),linear-gradient(to_bottom,#94a3b81f_1px,transparent_1px)] bg-[size:22px_22px] [mask-image:radial-gradient(ellipse_85%_55%_at_50%_15%,#000_75%,transparent_100%)] [-webkit-mask-image:radial-gradient(ellipse_85%_55%_at_50%_15%,#000_75%,transparent_100%)] [mask-repeat:no-repeat] [-webkit-mask-repeat:no-repeat]" />
<Noise patternAlpha={18} />
</div>
);
}