Open in
Hero waves are cool
Leverage the power of canvas to create a beautiful hero section
Installation
Install dependencies
npm i framer-motion clsx tailwind-merge simplex-noise
Add util file
lib/utils.ts
import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs));
}
Copy the source code
components/ui/wavy-background.tsx
"use client";
import { cn } from "@/lib/utils";
import React, { useEffect, useRef, useState } from "react";
import { createNoise3D } from "simplex-noise";
export const WavyBackground = ({
children,
className,
containerClassName,
colors,
waveWidth,
backgroundFill,
blur = 10,
speed = "fast",
waveOpacity = 0.5,
...props
}: {
children?: any;
className?: string;
containerClassName?: string;
colors?: string[];
waveWidth?: number;
backgroundFill?: string;
blur?: number;
speed?: "slow" | "fast";
waveOpacity?: number;
[key: string]: any;
}) => {
const noise = createNoise3D();
let w: number,
h: number,
nt: number,
i: number,
x: number,
ctx: any,
canvas: any;
const canvasRef = useRef<HTMLCanvasElement>(null);
const getSpeed = () => {
switch (speed) {
case "slow":
return 0.001;
case "fast":
return 0.002;
default:
return 0.001;
}
};
const init = () => {
canvas = canvasRef.current;
ctx = canvas.getContext("2d");
w = ctx.canvas.width = window.innerWidth;
h = ctx.canvas.height = window.innerHeight;
ctx.filter = `blur(${blur}px)`;
nt = 0;
window.onresize = function () {
w = ctx.canvas.width = window.innerWidth;
h = ctx.canvas.height = window.innerHeight;
ctx.filter = `blur(${blur}px)`;
};
render();
};
const waveColors = colors ?? [
"#38bdf8",
"#818cf8",
"#c084fc",
"#e879f9",
"#22d3ee",
];
const drawWave = (n: number) => {
nt += getSpeed();
for (i = 0; i < n; i++) {
ctx.beginPath();
ctx.lineWidth = waveWidth || 50;
ctx.strokeStyle = waveColors[i % waveColors.length];
for (x = 0; x < w; x += 5) {
var y = noise(x / 800, 0.3 * i, nt) * 100;
ctx.lineTo(x, y + h * 0.5); // adjust for height, currently at 50% of the container
}
ctx.stroke();
ctx.closePath();
}
};
let animationId: number;
const render = () => {
ctx.fillStyle = backgroundFill || "black";
ctx.globalAlpha = waveOpacity || 0.5;
ctx.fillRect(0, 0, w, h);
drawWave(5);
animationId = requestAnimationFrame(render);
};
useEffect(() => {
init();
return () => {
cancelAnimationFrame(animationId);
};
}, []);
const [isSafari, setIsSafari] = useState(false);
useEffect(() => {
// I'm sorry but i have got to support it on safari.
setIsSafari(
typeof window !== "undefined" &&
navigator.userAgent.includes("Safari") &&
!navigator.userAgent.includes("Chrome")
);
}, []);
return (
<div
className={cn(
"h-screen flex flex-col items-center justify-center",
containerClassName
)}
>
<canvas
className="absolute inset-0 z-0"
ref={canvasRef}
id="canvas"
style={{
...(isSafari ? { filter: `blur(${blur}px)` } : {}),
}}
></canvas>
<div className={cn("relative z-10", className)} {...props}>
{children}
</div>
</div>
);
};
Prop | Type | Default | Description |
---|---|---|---|
children | any | - | The content to be displayed on top of the wavy background. |
className | string | - | The CSS class to apply to the content container. |
containerClassName | string | - | The CSS class to apply to the main container. |
colors | string[] | ["#38bdf8", "#818cf8", "#c084fc", "#e879f9", "#22d3ee"] | The colors of the waves. |
waveWidth | number | 50 | The width of the waves. |
backgroundFill | string | "black" | The background color. |
blur | number | 10 | The blur effect applied to the waves. |
speed | "slow" | "fast" | "fast" | The speed of the wave animation. |
waveOpacity | number | 0.5 | The opacity of the waves. |
[key: string] | any | - | Any other props not listed above. |
Get beautiful, hand-crafted templates and components with Aceternity UI Pro
Professional, beautiful and elegant templates for your business. Get the best component packs and templates with Aceternity UI Pro.
The work that Manu did laid the foundation of online education that we provide today. The website he built for us is used by thousands of students every day. He took the requirements and built the ...
Jagvinder Kour
Chairperson at Golden Bells Academy