webgl实现canvas液态金属流动动画效果代码-html代码-BFW代码库

webgl实现canvas液态金属流动动画效果代码

代码语言：html

所属分类：动画

代码描述：webgl实现canvas液态金属流动动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">
  

  
  
<style>
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
  
  background:
  repeating-radial-gradient(
  circle at center,
    #444 0 10%,
    #111 10% 20%
  );
  
  touch-action: none;
}

canvas {
  width: 100%;
  height: auto;
  object-fit: contain;
}
</style>

  

</head>

<body >
  <canvas id="canvas"></canvas>
  
  
      <script  >
/*********
* made by Matthias Hurrle (@atzedent)
*/

/** @type {HTMLCanvasElement} */
const canvas = window.canvas;
const gl = canvas.getContext('webgl2');
const dpr = window.devicePixelRatio;

const vertexSource = `#version 300 es
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

in vec2 position;

void main(void) {
    gl_Position = vec4(position, 0., 1.);
}
`;
const fragmentSource = `#version 300 es
/*********
* made by Matthias Hurrle (@atzedent)
*/

#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

out vec4 fragColor;

uniform vec2 resolution;
uniform float time;

#define S smoothstep
#define T .112358+time

float rnd(vec2 p) {
	return fract(
		sin(
			dot(
				p,
        vec2(12.9898, 78.233)
      )
    )*43758.5453123
  );
}

float noise(vec2 p) {
	vec2 f=fract(p), i=floor(p);
	float
	a=rnd(i),
	b=rnd(i+vec2(1,0)),
	c=rnd(i+vec2(0,1)),
	d=rnd(i+vec2(1,1));

	vec2 u = f*f*(3.-2.*f);

	return mix(a,b,u.x)+
		(c-a)*u.y*(1.-u.x)+
		(d-b)*u.y*u.x;
}

void main(void) {
	vec2 uv = (
		gl_FragCoord.xy -.5 * resolution.xy
	)/min(resolution.x, resolution.y);

	float t = T*.1;
	vec3 col = vec3(0);
	vec2 p = vec2(0);
	p.x = noise(uv+vec2(0,1));
	p.y = noise(uv+vec2(1,0));

	p = 8.*(
		vec2(
			sin(t),
			-cos(t)
		)*.15-p
	);

	float s = .35;
	
	for(float i=.0;i<6.;i++) {
		p.x += s*sin(2.*t-i*1.5*p.y)+t;
		p.y += s*cos(2.*t+i*1.5*p.x)-t;
	}

	col+= sin(t+p.x+p.y);
	col = pow(S(vec3(0),vec3(1),col), vec3(.4));
	col = mix(vec3(.7,.6,.4)*col, col, col);

	float
	stp = 2.,
	prog = T*.2,
	anim = floor(mod(prog-.5,stp));
	
	if(ani.........完整代码请登录后点击上方下载按钮下载查看