JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

Any URL's added here will be added as `<script>`

s in order, and run *before* the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

` ````
<!--Shader from https://www.shadertoy.com/view/XslGRr-->
<!--Lag? Try making the width and height smaller-->
```

` ````
body {
overflow: hidden;
}
canvas {
width: 100%;
height: 100%;
}
```

` ````
console.clear();
var width = window.innerWidth / 2;
var height = window.innerHeight / 2;
var stage = new PIXI.Stage(0x0, true);
var renderer = PIXI.autoDetectRenderer(width, height);
document.body.appendChild(renderer.view);
var uniforms = {
iResolution: {
type: "2f",
value: {
x: width,
y: height
}
},
iGlobalTime: {
type: "1f",
value: 0
},
iMouse: {
type: "2f",
value: {
x: 0,
y: 0
}
}
};
var fragmentSrc = [
"precision mediump float;",
"uniform vec2 iResolution;",
"uniform float iGlobalTime;",
"uniform vec2 iMouse;",
"float hash( float n ) {",
"return fract(sin(n)*43758.5453);",
"}",
"float noise( in vec3 x ) {",
"vec3 p = floor(x);",
"vec3 f = fract(x);",
"f = f*f*(3.0-2.0*f);",
"float n = p.x + p.y*57.0 + 113.0*p.z;",
"return mix(mix(mix( hash(n+ 0.0), hash(n+ 1.0),f.x),",
"mix( hash(n+ 57.0), hash(n+ 58.0),f.x),f.y),",
"mix(mix( hash(n+113.0), hash(n+114.0),f.x),",
"mix( hash(n+170.0), hash(n+171.0),f.x),f.y),f.z);",
"}",
"vec4 map( in vec3 p ) {",
"float d = 0.2 - p.y;",
"vec3 q = p - vec3(1.0,0.1,0.0)*iGlobalTime;",
"float f;",
"f = 0.5000*noise( q ); q = q*2.02;",
"f += 0.2500*noise( q ); q = q*2.03;",
"f += 0.1250*noise( q ); q = q*2.01;",
"f += 0.0625*noise( q );",
"d += 3.0 * f;",
"d = clamp( d, 0.0, 1.0 );",
"vec4 res = vec4( d );",
"res.xyz = mix( 1.15*vec3(1.0,0.95,0.8), vec3(0.7,0.7,0.7), res.x );",
"return res;",
"}",
"vec3 sundir = vec3(-1.0,0.0,0.0);",
"vec4 raymarch( in vec3 ro, in vec3 rd ) {",
"vec4 sum = vec4(0, 0, 0, 0);",
"float t = 0.0;",
"for(int i=0; i<64; i++) {",
"if( sum.a > 0.99 ) continue;",
"vec3 pos = ro + t*rd;",
"vec4 col = map( pos );",
"#if 1",
"float dif = clamp((col.w - map(pos+0.3*sundir).w)/0.6, 0.0, 1.0 );",
"vec3 lin = vec3(0.65,0.68,0.7)*1.35 + 0.45*vec3(0.7, 0.5, 0.3)*dif;",
"col.xyz *= lin;",
"#endif",
"col.a *= 0.35;",
"col.rgb *= col.a;",
"sum = sum + col*(1.0 - sum.a); ",
"#if 0",
"t += 0.1;",
"#else",
"t += max(0.1,0.025*t);",
"#endif",
"}",
"sum.xyz /= (0.001+sum.w);",
"return clamp( sum, 0.0, 1.0 );",
"}",
"void main(void) {",
"vec2 q = gl_FragCoord.xy / iResolution.xy;",
"vec2 p = -1.0 + 2.0*q;",
"p.x *= iResolution.x/ iResolution.y;",
"vec2 mo = -1.0 + 2.0*iMouse.xy / iResolution.xy;",
// camera
"vec3 ro = 4.0*normalize(vec3(cos(2.75-3.0*mo.x), 0.7+(mo.y+1.0), sin(2.75-3.0*mo.x)));",
"vec3 ta = vec3(0.0, 1.0, 0.0);",
"vec3 ww = normalize( ta - ro);",
"vec3 uu = normalize(cross( vec3(0.0,1.0,0.0), ww ));",
"vec3 vv = normalize(cross(ww,uu));",
"vec3 rd = normalize( p.x*uu + p.y*vv + 1.5*ww );",
"vec4 res = raymarch( ro, rd );",
"float sun = clamp( dot(sundir,rd), 0.0, 1.0 );",
"vec3 col = vec3(0.6,0.71,0.75) - rd.y*0.2*vec3(1.0,0.5,1.0) + 0.15*0.5;",
"col += 0.2*vec3(1.0,.6,0.1)*pow( sun, 8.0 );",
"col *= 0.95;",
"col = mix( col, res.xyz, res.w );",
"col += 0.1*vec3(1.0,0.4,0.2)*pow( sun, 3.0 );",
"gl_FragColor = vec4( col, 1.0 );",
"}"
];
var shader = new PIXI.AbstractFilter(fragmentSrc, uniforms);
var bg = PIXI.Sprite.fromImage("https://s3-us-west-2.amazonaws.com/s.cdpn.io/167451/test_BG.jpg");
bg.width = width;
bg.height = height;
bg.shader = shader;
stage.addChild(bg);
var logo = PIXI.Sprite.fromImage("https://s3-us-west-2.amazonaws.com/s.cdpn.io/167451/pixiJsV2.png");
logo.width = 472 / 3;
logo.height = 174 / 3;
logo.x = width - logo.width - 10;
logo.y = height - logo.height - 10;
stage.addChild(logo);
var count = 0;
var mouse;
function animate() {
count += 0.01;
mouse = stage.getMousePosition();
shader.uniforms.iGlobalTime.value = count;
if (mouse.x > 0 && mouse.y > 0) { // If mouse is over stage
shader.uniforms.iMouse.value = {
x: mouse.x,
y: mouse.y
};
}
shader.syncUniforms();
renderer.render(stage);
requestAnimFrame(animate);
}
requestAnimFrame(animate);
```

999px

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