import { useRef, useEffect } from 'react';
import { Renderer, Program, Mesh, Triangle } from 'ogl';

import './LiquidChrome.css';

export const LiquidChrome = ({
  baseColor = [0.1, 0.1, 0.1],
  speed = 0.2,
  amplitude = 0.3,
  frequencyX = 3,
  frequencyY = 3,
  interactive = true,
  ...props
}) => {
  const containerRef = useRef(null);

  useEffect(() => {
    if (!containerRef.current) return;

    const container = containerRef.current;
    const renderer = new Renderer({ antialias: true });
    const gl = renderer.gl;
    gl.clearColor(1, 1, 1, 1);

    const vertexShader = `
      attribute vec2 position;
      attribute vec2 uv;
      varying vec2 vUv;
      void main() {
        vUv = uv;
        gl_Position = vec4(position, 0.0, 1.0);
      }
    `;

    const fragmentShader = `
      precision highp float;
      uniform float uTime;
      uniform vec3 uResolution;
      uniform vec3 uBaseColor;
      uniform float uAmplitude;
      uniform float uFrequencyX;
      uniform float uFrequencyY;
      uniform vec2 uMouse;
      varying vec2 vUv;

      vec4 renderImage(vec2 uvCoord) {
          vec2 fragCoord = uvCoord * uResolution.xy;
          vec2 uv = (2.0 * fragCoord - uResolution.xy) / min(uResolution.x, uResolution.y);

          for (float i = 1.0; i < 10.0; i++){
              uv.x += uAmplitude / i * cos(i * uFrequencyX * uv.y + uTime + uMouse.x * 3.14159);
              uv.y += uAmplitude / i * cos(i * uFrequencyY * uv.x + uTime + uMouse.y * 3.14159);
          }

          vec2 diff = (uvCoord - uMouse);
          float dist = length(diff);
          float falloff = exp(-dist * 20.0);
          float ripple = sin(10.0 * dist - uTime * 2.0) * 0.03;
          uv += (diff / (dist + 0.0001)) * ripple * falloff;

          vec3 color = uBaseColor / abs(sin(uTime - uv.y - uv.x));
          return vec4(color, 1.0);
      }

      void main() {
          vec4 col = vec4(0.0);
          int samples = 0;
          for (int i = -1; i <= 1; i++){
              for (int j = -1; j <= 1; j++){
                  vec2 offset = vec2(float(i), float(j)) * (1.0 / min(uResolution.x, uResolution.y));
                  col += renderImage(vUv + offset);
                  samples++;
              }
          }
          gl_FragColor = col / float(samples);
      }
    `;

    const geometry = new Triangle(gl);
    const program = new Program(gl, {
      vertex: vertexShader,
      fragment: fragmentShader,
      uniforms: {
        uTime: { value: 0 },
        uResolution: {
          value: new Float32Array([gl.canvas.width, gl.canvas.height, gl.canvas.width / gl.canvas.height])
        },
        uBaseColor: { value: new Float32Array(baseColor) },
        uAmplitude: { value: amplitude },
        uFrequencyX: { value: frequencyX },
        uFrequencyY: { value: frequencyY },
        uMouse: { value: new Float32Array([0, 0]) }
      }
    });
    const mesh = new Mesh(gl, { geometry, program });

    function resize() {
      const scale = 1;
      renderer.setSize(container.offsetWidth * scale, container.offsetHeight * scale);
      const resUniform = program.uniforms.uResolution.value;
      resUniform[0] = gl.canvas.width;
      resUniform[1] = gl.canvas.height;
      resUniform[2] = gl.canvas.width / gl.canvas.height;
    }
    window.addEventListener('resize', resize);
    resize();

    function handleMouseMove(event) {
      const rect = container.getBoundingClientRect();
      const x = (event.clientX - rect.left) / rect.width;
      const y = 1 - (event.clientY - rect.top) / rect.height;
      const mouseUniform = program.uniforms.uMouse.value;
      mouseUniform[0] = x;
      mouseUniform[1] = y;
    }

    function handleTouchMove(event) {
      if (event.touches.length > 0) {
        const touch = event.touches[0];
        const rect = container.getBoundingClientRect();
        const x = (touch.clientX - rect.left) / rect.width;
        const y = 1 - (touch.clientY - rect.top) / rect.height;
        const mouseUniform = program.uniforms.uMouse.value;
        mouseUniform[0] = x;
        mouseUniform[1] = y;
      }
    }

    if (interactive) {
      container.addEventListener('mousemove', handleMouseMove);
      container.addEventListener('touchmove', handleTouchMove);
    }

    let animationId;
    function update(t) {
      animationId = requestAnimationFrame(update);
      program.uniforms.uTime.value = t * 0.001 * speed;
      renderer.render({ scene: mesh });
    }
    animationId = requestAnimationFrame(update);

    container.appendChild(gl.canvas);

    return () => {
      cancelAnimationFrame(animationId);
      window.removeEventListener('resize', resize);
      if (interactive) {
        container.removeEventListener('mousemove', handleMouseMove);
        container.removeEventListener('touchmove', handleTouchMove);
      }
      if (gl.canvas.parentElement) {
        gl.canvas.parentElement.removeChild(gl.canvas);
      }
      gl.getExtension('WEBGL_lose_context')?.loseContext();
    };
  }, [baseColor, speed, amplitude, frequencyX, frequencyY, interactive]);

  return <div ref={containerRef} className="liquidChrome-container" {...props} />;
};

export default LiquidChrome;
LiquidChrome

Preview

Installation

Usage
