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import React, { useMemo, useRef } from 'react'; import { Canvas, useFrame } from '@react-three/fiber'; import { extend } from '@react-three/fiber'; import { MathUtils, Vector3, Color } from 'three'; import * as THREE from 'three'; import { Environment } from '@react-three/drei'; extend({ IcosahedronGeometry: THREE.IcosahedronGeometry }); const vertexShader = ` uniform float u_intensity; uniform float u_time; varying vec2 vUv; varying float vDisplacement; // Classic Perlin 3D Noise functions vec4 permute(vec4 x) { return mod(((x*34.0)+1.0)*x, 289.0); } vec4 taylorInvSqrt(vec4 r) { return 1.79284291400159 - 0.85373472095314 * r; } vec3 fade(vec3 t) { return t*t*t*(t*(t*6.0-15.0)+10.0); } float cnoise(vec3 P) { vec3 Pi0 = floor(P); vec3 Pi1 = Pi0 + vec3(1.0); Pi0 = mod(Pi0, 289.0); Pi1 = mod(Pi1, 289.0); vec3 Pf0 = fract(P); vec3 Pf1 = Pf0 - vec3(1.0); vec4 ix = vec4(Pi0.x, Pi1.x, Pi0.x, Pi1.x); vec4 iy = vec4(Pi0.yy, Pi1.yy); vec4 iz0 = Pi0.zzzz; vec4 iz1 = Pi1.zzzz; vec4 ixy = permute(permute(ix) + iy); vec4 ixy0 = permute(ixy + iz0); vec4 ixy1 = permute(ixy + iz1); vec4 gx0 = ixy0 / 7.0; vec4 gy0 = fract(floor(gx0) / 7.0) - 0.5; gx0 = fract(gx0); vec4 gz0 = vec4(0.5) - abs(gx0) - abs(gy0); vec4 sz0 = step(gz0, vec4(0.0)); gx0 -= sz0 * (step(0.0, gx0) - 0.5); gy0 -= sz0 * (step(0.0, gy0) - 0.5); vec4 gx1 = ixy1 / 7.0; vec4 gy1 = fract(floor(gx1) / 7.0) - 0.5; gx1 = fract(gx1); vec4 gz1 = vec4(0.5) - abs(gx1) - abs(gy1); vec4 sz1 = step(gz1, vec4(0.0)); gx1 -= sz1 * (step(0.0, gx1) - 0.5); gy1 -= sz1 * (step(0.0, gy1) - 0.5); vec3 g000 = vec3(gx0.x,gy0.x,gz0.x); vec3 g100 = vec3(gx0.y,gy0.y,gz0.y); vec3 g010 = vec3(gx0.z,gy0.z,gz0.z); vec3 g110 = vec3(gx0.w,gy0.w,gz0.w); vec3 g001 = vec3(gx1.x,gy1.x,gz1.x); vec3 g101 = vec3(gx1.y,gy1.y,gz1.y); vec3 g011 = vec3(gx1.z,gy1.z,gz1.z); vec3 g111 = vec3(gx1.w,gy1.w,gz1.w); vec4 norm0 = taylorInvSqrt(vec4(dot(g000, g000), dot(g010, g010), dot(g100, g100), dot(g110, g110))); g000 *= norm0.x; g010 *= norm0.y; g100 *= norm0.z; g110 *= norm0.w; vec4 norm1 = taylorInvSqrt(vec4(dot(g001, g001), dot(g011, g011), dot(g101, g101), dot(g111, g111))); g001 *= norm1.x; g011 *= norm1.y; g101 *= norm1.z; g111 *= norm1.w; float n000 = dot(g000, Pf0); float n100 = dot(g100, vec3(Pf1.x, Pf0.yz)); float n010 = dot(g010, vec3(Pf0.x, Pf1.y, Pf0.z)); float n110 = dot(g110, vec3(Pf1.xy, Pf0.z)); float n001 = dot(g001, vec3(Pf0.xy, Pf1.z)); float n101 = dot(g101, vec3(Pf1.x, Pf0.y, Pf1.z)); float n011 = dot(g011, vec3(Pf0.x, Pf1.yz)); float n111 = dot(g111, Pf1); vec3 fade_xyz = fade(Pf0); vec4 n_z = mix(vec4(n000, n100, n010, n110), vec4(n001, n101, n011, n111), fade_xyz.z); vec2 n_yz = mix(n_z.xy, n_z.zw, fade_xyz.y); float n_xyz = mix(n_yz.x, n_yz.y, fade_xyz.x); return 2.2 * n_xyz; } void main() { vUv = uv; vDisplacement = cnoise(position + vec3(2.0 * u_time)); vec3 newPosition = position + normal * (u_intensity * vDisplacement); vec4 modelPosition = modelMatrix * vec4(newPosition, 1.0); vec4 viewPosition = viewMatrix * modelPosition; vec4 projectedPosition = projectionMatrix * viewPosition; gl_Position = projectedPosition; } `; const fragmentShader = ` uniform float u_intensity; uniform float u_time; uniform vec3 u_color; varying vec2 vUv; varying float vDisplacement; // Function to generate random noise float random(vec2 st) { return fract(sin(dot(st.xy, vec2(12.9898,78.233))) * 43758.5453123); } void main() { float distort = 2.0 * vDisplacement * u_intensity * sin(vUv.y * 10.0 + u_time); vec3 color = mix(u_color, vec3(1.0, 1.0, 1.0), distort); // Add screen-space random noise float noise = random(gl_FragCoord.xy * u_time * 0.05) * 0.05; // tweak strength color += noise; gl_FragColor = vec4(color, 1.0); } `; interface BlobProps { color?: string; } const Blob: React.FC = ({ color = '#ffd717' }) => { const mesh = useRef(null); const hover = useRef(false); const uniforms = useMemo( () => ({ u_time: { value: 0 }, u_intensity: { value: 0.3 }, u_color: { value: new Color(color) }, }), [] ); const targetPosition = useRef(new Vector3(0, 0, 0)); const currentPosition = useRef(new Vector3(0, 0, 0)); useFrame((state) => { const { clock, mouse } = state; if (mesh.current) { const material = mesh.current.material as THREE.ShaderMaterial; material.uniforms.u_time.value = 0.4 * clock.getElapsedTime(); material.uniforms.u_intensity.value = MathUtils.lerp( material.uniforms.u_intensity.value, hover.current ? 0.7 : 1, 0.02 ); // Update target position based on mouse targetPosition.current.set(mouse.x * 0.3, mouse.y * 0.3, 0); currentPosition.current.lerp(targetPosition.current, 0.1); mesh.current.position.copy(currentPosition.current); } }); return ( (hover.current = true)} onPointerOut={() => (hover.current = false)} > ); }; const Home: React.FC = () => { return (

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Mesh Gradient Background3

Installation

Files

components

Styles