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Created March 19, 2019 09:59
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webgl metaballs
Raw
index.html
<script type="x-shader/x-vertex" id="vertexMetaballs">
attribute vec2 position;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
}
</script>
<script type="x-shader/x-fragment" id="fragmentMetaballs">
precision highp float;
const int NUM_METABALLS = 15;
uniform vec3 metaballs[15];
uniform vec2 uResolution;
uniform sampler2D uColorSampler;
uniform sampler2D uNoiseSampler;
uniform float uTime;
void main(){
float x = gl_FragCoord.x;
float y = gl_FragCoord.y;
float v = 0.0;
float radius = 2.0;
float speed = 1.5;
for (int i = 0; i < NUM_METABALLS; i++) {
vec3 mb = metaballs[i];
float dx = mb.x - x;
float dy = mb.y - y;
float r = mb.z;
v += r*r/(dx*dx + dy*dy);
}
vec4 color;
if (v > 1.0) {
vec4 textureColor = texture2D(uColorSampler, vec2(gl_FragCoord.x / uResolution.x, gl_FragCoord.y / uResolution.y) );
vec4 noiseColor = (texture2D(uNoiseSampler, gl_FragCoord.xy / 100.0 )) / 1.;
float l = length(noiseColor);
if(l > 1.05){
vec4 mixedColor = textureColor + (noiseColor * 0.001);
color = mixedColor;
}
else{
//discard;
color = textureColor * 0.85;
}
}
else {
discard;
}
gl_FragColor = vec4(color.rgb, 0.8);
}
</script>
<div class="wrapper grad">
<div class="dots"></div>
<canvas id="metaball-canvas" class="metaball-canvas"></canvas>
</div>
Raw
script.js
var canvas;
var gl;
var realToCSSPixels = window.devicePixelRatio;
var displayWidth;
var displayHeight;
var rings;
var createdMetaballs = [];
var assetsIndexToLoad = 0;
var assetsToLoad = [
{path: 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-183/', src: 'noise3.png', name: 'noise3', type: 'texture'}
];
var assets = {};
window.onload = preloadAssets;
function preloadAssets() {
function checkIfAllAssetsAreLoaded() {
if (assetsIndexToLoad < assetsToLoad.length) {
loadAssetIndex(assetsIndexToLoad);
}
else {
initialize();
}
}
function loadAssetIndex(index) {
var objectToLoad = assetsToLoad[index];
switch (objectToLoad.type) {
case 'texture':
var image = new Image();
image.onload = function(event) {
assets[objectToLoad.name] = this;
assetsIndexToLoad++;
checkIfAllAssetsAreLoaded();
};
image.crossOrigin = '';
image.src = objectToLoad.path + objectToLoad.src;
break;
}
}
loadAssetIndex(assetsIndexToLoad);
}
function initialize(){
canvas = document.getElementById('metaball-canvas');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var glConfig = {
premultipliedAlpha: true,
antialias: true,
depth:true,
alpha: true
}
gl = canvas.getContext('webgl', glConfig) || canvas.getContext('experimental-webgl', glConfig);
if(!gl){
console.error('cannot find gl', gl);
return;
}
displayWidth = Math.floor(gl.canvas.clientWidth * realToCSSPixels);
displayHeight = Math.floor(gl.canvas.clientHeight * realToCSSPixels);
var minSpeed = 0.2;
var maxSpeed = 2.5;
var minMultiplierArcX = -.25;
var maxMultiplierArcX = .75;
var minMultiplierArcY = -.25;
var maxMultiplierArcY = .25;
var scale = 1.0;
var metaballsGroup1 = {
metaballs:[
{ centerOffsetX:26 * scale, centerOffsetY:155 * scale, radius: 70 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-110 * scale, centerOffsetY:10 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:12 * scale, centerOffsetY:-114 * scale, radius: 48 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-300 * scale, centerOffsetY:20 * scale, radius: 160 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-570 * scale, centerOffsetY:-20 * scale, radius: 50 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.2}, {color:'#c8246c', stop:.35}, {color:'#40204c', stop:.55}, {color:'#e24926', stop:.75}, {color:'#40204c', stop:1.0}], false, false)
};
var metaballsGroup2 = {
metaballs:[
{ centerOffsetX:-290 * scale, centerOffsetY:60 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-100 * scale, centerOffsetY:45 * scale, radius: 70 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-60 * scale, centerOffsetY:60 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:160 * scale, centerOffsetY:170 * scale, radius: 90 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:310 * scale, centerOffsetY:40 * scale, radius: 40 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:450 * scale, centerOffsetY:-120 * scale, radius: 50 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:230 * scale, centerOffsetY:-240 * scale, radius: 70 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:320 * scale, centerOffsetY:-130 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:110 * scale, centerOffsetY:-70 * scale, radius: 80 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-1070 * scale, centerOffsetY:-500 * scale, radius: 20 * scale, speed: getRandomFloat(0.07, 0.014), t:0.0, arcMultiplierX:getRandomFloat(30.0, 30.0), arcMultiplierY:getRandomFloat(10.0, 10.0) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.0}, {color:'#e24926', stop:0.3}, {color:'#c8246c', stop:.4}, {color:'#40204c', stop:.7}], true, false)
};
var metaballsGroup3 = {
metaballs:[
{ centerOffsetX:410 * scale, centerOffsetY:-120 * scale, radius: 18 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:340 * scale, centerOffsetY:-200 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:200 * scale, centerOffsetY:-190 * scale, radius: 40 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:250 * scale, centerOffsetY:-280 * scale, radius: 16 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.56}, {color:'#c8246c', stop:.63}, {color:'#40204c', stop:.7}], false, false)
};
var metaballsGroup4 = {
metaballs:[
{ centerOffsetX:-410 * scale, centerOffsetY:-270 * scale, radius: 28 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-490 * scale, centerOffsetY:-230 * scale, radius: 34 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-470 * scale, centerOffsetY:-320 * scale, radius: 40 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-470 * scale, centerOffsetY:320 * scale, radius: 40 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-430 * scale, centerOffsetY:360 * scale, radius: 30 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.1}, {color:'#c8246c', stop:.20}, {color:'#40204c', stop:.4}], false, false)
};
var metaballsGroup5 = {
metaballs:[
{ centerOffsetX:-500 * scale, centerOffsetY:-100 * scale, radius: 24 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:30 * scale, centerOffsetY:-120 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:480 * scale, centerOffsetY:170 * scale, radius: 21 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.25}, {color:'#c8246c', stop:.60}, {color:'#40204c', stop:0.78}], true, false)
};
var metaballsGroup6 = {
metaballs:[
{ centerOffsetX:820 * scale, centerOffsetY:20 * scale, radius: 200 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:480 * scale, centerOffsetY:30 * scale, radius: 70 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:500 * scale, centerOffsetY:-10 * scale, radius: 65 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:1080 * scale, centerOffsetY:30 * scale, radius: 35 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:400 * scale, centerOffsetY:160 * scale, radius: 55 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:350 * scale, centerOffsetY:-120 * scale, radius: 75 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:1670 * scale, centerOffsetY:500 * scale, radius: 15 * scale, speed: getRandomFloat(0.21, 0.22), t:13.0, arcMultiplierX:30.0, arcMultiplierY:6.0 },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.0}, {color:'#e24926', stop:0.7}, {color:'#c8246c', stop:.8}, {color:'#40204c', stop:1.0}], false, false)
};
var metaballsGroup7 = {
metaballs:[
{ centerOffsetX:-930 * scale, centerOffsetY:40 * scale, radius: 30 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-800 * scale, centerOffsetY:90 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-640 * scale, centerOffsetY:270 * scale, radius: 50 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-590 * scale, centerOffsetY:150 * scale, radius: 90 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-400 * scale, centerOffsetY:240 * scale, radius: 40 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-300 * scale, centerOffsetY:120 * scale, radius: 35 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-450 * scale, centerOffsetY:50 * scale, radius: 70 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-590 * scale, centerOffsetY:-40 * scale, radius: 60 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
{ centerOffsetX:-370 * scale, centerOffsetY:-70 * scale, radius: 50 * scale, speed: getRandomFloat(minSpeed, maxSpeed), t:Math.random() * 200, arcMultiplierX:getRandomFloat(minMultiplierArcX, maxMultiplierArcX), arcMultiplierY:getRandomFloat(minMultiplierArcY, maxMultiplierArcY) },
],
texture:generateGradientTexture([{color:'#e24926', stop:0.2}, {color:'#c8246c', stop:.4}, {color:'#40204c', stop:.7}], true, false)
};
createdMetaballs.push(new Metaballs(gl, metaballsGroup6));
createdMetaballs.push(new Metaballs(gl, metaballsGroup7));
createdMetaballs.push(new Metaballs(gl, metaballsGroup2));
createdMetaballs.push(new Metaballs(gl, metaballsGroup1));
createdMetaballs.push(new Metaballs(gl, metaballsGroup3));
createdMetaballs.push(new Metaballs(gl, metaballsGroup4));
createdMetaballs.push(new Metaballs(gl, metaballsGroup5));
for (var i = 0; i < createdMetaballs.length; i++) {
setTimeout(createdMetaballs[i].fadeIn, i * 200);
};
window.addEventListener('resize', onWindowResize);
window.addEventListener('mousemove', onWindowMouseMove);
resizeGL(gl);
step();
}
function generateGradientTexture(colors, vertical, debug) {
colors = colors || [{color:'#000000', stop:0.0}, {color:'#FFF000', stop:.5}, {color:'#642054', stop:1.0}];
vertical = vertical !== undefined ? vertical : false;
var size = 512;
// create canvas
var textureCanvas = document.createElement( 'canvas' );
textureCanvas.width = size;
textureCanvas.height = size;
if(debug == true){
textureCanvas.style.position = 'absolute';
textureCanvas.style.top = '0px';
textureCanvas.style.left = '0px';
document.body.appendChild(textureCanvas);
}
// get context
var context = textureCanvas.getContext( '2d' );
// draw gradient
context.rect( 0, 0, size, size );
var grd = vertical ? context.createLinearGradient(0, size, 0, 0) : context.createLinearGradient(0, 0, size, 0);
for(var i = 0; i < colors.length; i++){
grd.addColorStop(colors[i].stop, colors[i].color);
}
context.fillStyle = grd;
context.fillRect(0, 0, size, size);
return textureCanvas;
}
function getRandomFloat(min, max) {
return Math.random() * (max - min) + min;
}
function onWindowResize(event){
canvas.width = canvas.clientWidth;
canvas.height = canvas.clientHeight;
resizeGL(gl);
gl.viewport(0, 0, gl.canvas.width, gl.canvas.height);
}
function onWindowMouseMove(event){
createdMetaballs.forEach(function(metaball){
metaball.handleMouseMove(event.clientX, event.clientY);
});
}
function resizeGL(gl) {
realToCSSPixels = window.devicePixelRatio;
// Lookup the size the browser is displaying the canvas in CSS pixels
// and compute a size needed to make our drawingbuffer match it in
// device pixels.
displayWidth = Math.floor(gl.canvas.clientWidth * realToCSSPixels);
displayHeight = Math.floor(gl.canvas.clientHeight * realToCSSPixels);
// Check if the canvas is not the same size.
if (gl.canvas.width !== displayWidth ||
gl.canvas.height !== displayHeight) {
// Make the canvas the same size
gl.canvas.width = displayWidth;
gl.canvas.height = displayHeight;
}
gl.viewport(0, 0, displayWidth, displayHeight);
createdMetaballs.forEach(function(metaball){
metaball.handleResize(displayWidth, displayHeight);
});
}
var step = function() {
createdMetaballs.forEach(function(metaball){
metaball.updateSimulation();
});
requestAnimationFrame(step);
};
Raw
scripts
<script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-183/Metaballs.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.1/TweenMax.min.js"></script>
Raw
style.css
body {
background-color: #101010;
color: #fff;
margin: 0px;
overflow: hidden;
}
.dots{
background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-183/dots-transparent.png);
width: 100%;
height:100%;
opacity: .1;
background-repeat: repeat;
}
.wrapper{
position:absolute;
top:0px;
left:0px;
width: 100%;
height:100%;
text-align: center;
}
.grad {
background: red; /* For browsers that do not support gradients */
background: -webkit-linear-gradient(left top, #152a8e, #b1376c); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(bottom right, #152a8e, #b1376c); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(bottom right, #152a8e, #b1376c); /* For Firefox 3.6 to 15 */
background: linear-gradient(to bottom right, #152a8e, #b1376c); /* Standard syntax */
}
.metaball-canvas{
width:100%;
height:100%;
position: absolute;
top:0;
left:0;
}
Raw
webgl-metaballs.markdown
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