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HTML

              
                <body >
  <div id="container">
    <div class="bottom-right">
  <a id="signature" href="https://www.shadertoy.com/user/balkhan/sort=popular&from=0&num=8"> _ </a>
</div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/96/three.js"></script>
    <script id="vertexShader" type="x-shader/x-vertex">
        void main() {
            gl_Position = vec4( position, 1.0 );
        }
    </script>
    <script id="fragmentShader" type="x-shader/x-fragment">
        uniform vec2 u_resolution;
        uniform float u_time;
        uniform sampler2D sam;
      
/*
* License Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
* Created by bal-khan
*/

vec2	march(vec3 pos, vec3 dir);
vec3	camera(vec2 uv);
void	rotate(inout vec2 v, float angle);

float 	t;			// time
vec3	ret_col;	// torus color
vec3	h; 			// light amount

#define I_MAX		20.
#define E			0.00001
#define FAR			100.
#define PI 3.14159
#define TAU PI*2.

/*
**	Leon's mod polar from : https://www.shadertoy.com/view/XsByWd
*/

vec2 modA (vec2 p, float count) {
    float an = TAU/count;
    float a = atan(p.y,p.x)+an*.5;
    a = mod(a, an)-an*.5;
    return vec2(cos(a),sin(a))*length(p);
}

/*
**	end mod polar
*/

void main()
{
    t  = u_time*.125;
    vec3	col = vec3(0., 0., 0.);
 // if (mod(float(gl_FragCoord.x), 30.) <= 1. || mod(float(gl_FragCoord.y), 30.) <= 1.)
 //     discard;
  vec2 R = u_resolution.xy;
  float aspect = max(R.x/R.y, 1.*R.y/R.x);
//  R *= aspect;
  vec2  uv  = vec2(gl_FragCoord.xy-R/2.) / R.xy;
  vec2  tcd = vec2(gl_FragCoord.xy) / R.xy;
  //uv *= aspect;
	vec3	dir = camera(uv*4.);
  vec3	pos = vec3(.0, .0, 0.0);

    pos.z = 44.5;    
    h*=0.;
    vec2	inter = (march(pos, dir));
//    col.xyz = 1.-ret_col*(1.-inter.x*.0125);
    col += h * 1.;
  col = max( col, texture2D(sam, tcd-vec2(.021,.0)).xyz*.0);
    gl_FragColor =  vec4(col,1.0);
}
float mylength(vec3 p) {return max(abs(p.x), max(abs(p.y), abs(p.z)));}
float mylength(vec2 p) {return max(abs(p.x), abs(p.y));}

float sdCapsule( vec3 p, vec3 a, vec3 b, float r )
{
  vec3 pa = p-a, ba = b-a;
  float h = clamp( dot(pa,ba)/dot(ba,ba), 0.0, 1.0 );
  return length( pa - ba*h ) - r;
}

float four_df(vec3 p, vec3 off)
{
    p -= off;
    vec3 pp = p;
    
 //   rotate(pp.xz, pp.y*.5+u_time*1.);
//    pp.xz = modA(pp.xz, 5.);
    pp.x -= 1.;
    float ret = sdCapsule(pp, vec3(.0, 10.*1.5, .0), vec3(.0, -10.*1.5, .0), .25 );

    pp = p;
    rotate(pp.xy, 1.57);
    pp.z = abs(pp.z)-clamp(exp(-pp.y+0.), .0, 1.);
    ret = min(ret,
                sdCapsule(pp-vec3(min(exp(-pp.y+5.), 1.)*2.1*sin(pp.y*.5+u_time), .0, .0), vec3(.0, 10.*1.5, .0), vec3(.0, -7.*1.5, 0.0), .25)
                );
    pp = p;
    rotate(pp.xy, 1.57*1.5);
    pp.x -= 6.5*1.5+1.;
    ret = min(ret,
                sdCapsule(pp, vec3(.0, 7.*1.5, .0), vec3(.0, -6.*1.5, 0.0), .25)
                );
  return ret;
}
      
float	scene(vec3 p)
{  
    float	var;
    float	mind = 1e5;
    var = atan(p.x,p.y);
    vec2 q = vec2( ( length(p.xy) )-10.,p.z);
    rotate(q, var*2.-u_time*.50);
    q = abs(q)-2.;
  rotate(q, var*4.+u_time*1.);
    q.y = abs(q.y)-.8;
  rotate(q, var*4.+u_time*1.);
    q.x = abs(q.x)-.8;
    ret_col = 1.-vec3(.350, .2, .3);
    mind = mylength(q)+.5+1.05*(length(fract(q*.125*(3.+3.*sin(var*2. - u_time*.250)) )-.5)-1.215);
  
    float the_4 = four_df(vec3((abs(p.x))*(p.x<0.0 ? -1. : 1.)+(p.x<0.0 ? 1. : -1.)*35.,p.yz), vec3(.0, .0, .0));

    h += vec3(.725, .4, .5)*.0125/(.125021+.0051*mind*mind);
    
    mind = min(mind, the_4);
  
    h += -vec3(.5, .4, .5)*.0025/(.021+mind*mind);

    h += vec3(.31, .21, .25)*.00125/(.005+.000151*the_4*the_4);
    //mind = abs(mind)+.0051;
    return (mind);
}

vec2	march(vec3 pos, vec3 dir)
{
    vec2	dist = vec2(0.0, 0.0);
    vec3	p = vec3(0.0, 0.0, 0.0);
    vec2	s = vec2(0.0, 0.0);
pos.z += -10.;
	    for (float i = -1.; i < I_MAX; ++i)
	    {
	    	p = pos + dir * dist.y;
	        dist.x = scene(p)*.7;
	        dist.y += dist.x;
            // log trick by aiekick
	        if (log(dist.y*dist.y/dist.x/1e5) > .0 || dist.x < E || dist.y > FAR)
            {
                break;
            }
	        s.x++;
    }
    s.y = dist.y;
    return (s);
}

// Utilities

void rotate(inout vec2 v, float angle)
{
	v = vec2(cos(angle)*v.x+sin(angle)*v.y,-sin(angle)*v.x+cos(angle)*v.y);
}

vec3	camera(vec2 uv)
{
    float		fov = 1.;
	vec3		forw  = vec3(0.0, 0.0, -1.0);
	vec3    	right = vec3(1.0, 0.0, 0.0);
	vec3    	up    = vec3(0.0, 1.0, 0.0);

    return (normalize((uv.x) * right + (uv.y) * up + fov * forw));
}

      
    </script>
    </div>
  </body>

              
            
!

CSS

              
                body {
  background-color: #000000;
}

.bottom-right {
    position: absolute;
    bottom: 20%;
    right: 10%;
}

#signature {
  font-family: "Times New Roman", Times, serif;
  font-size: 35px;
}

#container {
  width: 100%;
  height: 100%;
}
              
            
!

JS

              
                        var container;
        var camera, scene, renderer;
        var uniforms;

        init();
        animate();

        function init() {
            container = document.getElementById( 'container' );

            camera = new THREE.Camera();
            camera.position.z = 1;

            scene = new THREE.Scene();

            var geometry = new THREE.PlaneBufferGeometry( 2, 2 );
            uniforms = {
                sam: {type: "t", value: new THREE.TextureLoader().load( "https://fr.cdn.v5.futura-sciences.com/buildsv6/images/wide1920/f/5/0/f50159600a_100519_plus-belle-image-science-2016.jpg" )}, 
                u_time: { type: "f", value: 1.0 },
                u_resolution: { type: "v2", value: new THREE.Vector2() },
                u_mouse: { type: "v2", value: new THREE.Vector2() }
            };

            var material = new THREE.ShaderMaterial( {
                uniforms: uniforms,
                vertexShader: document.getElementById( 'vertexShader' ).textContent,
                fragmentShader: document.getElementById( 'fragmentShader' ).textContent
            } );

            var mesh = new THREE.Mesh( geometry, material );
            scene.add( mesh );

            renderer = new THREE.WebGLRenderer();
            renderer.setPixelRatio( window.devicePixelRatio );

            container.appendChild( renderer.domElement );

            onWindowResize();
            window.addEventListener( 'resize', onWindowResize, false );

            document.onmousemove = function(e){
              uniforms.u_mouse.value.x = e.pageX
              uniforms.u_mouse.value.y = e.pageY
            }
        }

        function onWindowResize( event ) {
            renderer.setSize( window.innerWidth, window.innerHeight );
            uniforms.u_resolution.value.x = renderer.domElement.width;
            uniforms.u_resolution.value.y = renderer.domElement.height;
        }

        function animate() {
            requestAnimationFrame( animate );
            render();
        }

        function render() {
            uniforms.u_time.value += 0.05;
            renderer.render( scene, camera );
        }
              
            
!
999px

Console