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var renderer, scene, camera, composer, circle, particle, luminor, halo, galaxy, uniforms;
var lights = [];
window.onload = function() {
  init();
  animate();
}

function init() {
  renderer = new THREE.WebGLRenderer({
    antialias: true,
    alpha: true
  });
  renderer.setPixelRatio((window.devicePixelRatio) ? window.devicePixelRatio : 1);
  renderer.setSize(window.innerWidth, window.innerHeight);
  renderer.autoClear = false;
  renderer.setClearColor(0x000000, 0.0);
  document.getElementById('canvas').appendChild(renderer.domElement);

scene = new THREE.Scene();

camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.z = 400;
  scene.add(camera);

circle = new THREE.Object3D();
  particle = new THREE.Object3D();
  halo = new THREE.Object3D();
  luminor = new THREE.Object3D();
 
  scene.add(circle);
  scene.add(particle);
  scene.add(halo);
  scene.add(luminor);

var geometry = new THREE.TetrahedronGeometry(1, 1);
  var geo_planet = new THREE.SphereGeometry(10, 64, 32);
  var geom3 = new THREE.SphereGeometry(16, 32, 16);
  var geom4 = new THREE.IcosahedronGeometry(16, 5);
  var geo_star = new THREE.SphereGeometry(90, 64, 64); 
 
  var material = new THREE.MeshPhongMaterial({
    color: 0x111111,
    shading: THREE.FlatShading
  });

for (var i = 0; i < 500; i++) {
    var mesh = new THREE.Mesh(geometry, material);
    mesh.position.set(Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5).normalize();
    mesh.position.multiplyScalar( 200 + (Math.random() * 500));
    mesh.rotation.set(Math.random() * 2, Math.random() * 2, Math.random() * 2);
    particle.add(mesh);
  }
  
  var mat = new THREE.MeshPhongMaterial({
    color: 0xcea3a3,
    emissive: 0x000000,
    //shading: THREE.FlatShading,
    shading : THREE.SmoothShading,
    map: THREE.ImageUtils.loadTexture('https://upload.wikimedia.org/wikipedia/commons/2/2c/Generic_Celestia_asteroid_texture.jpg'),
    bumpMap: THREE.ImageUtils.loadTexture('https://upload.wikimedia.org/wikipedia/commons/2/2c/Generic_Celestia_asteroid_texture.jpg'),
    bumpScale:   0.025,
    specularMap: THREE.ImageUtils.loadTexture('https://upload.wikimedia.org/wikipedia/commons/2/2c/Generic_Celestia_asteroid_texture.jpg'),
    specular: new THREE.Color('grey')
  });
  
  var mat3 = new THREE.ShaderMaterial({
    uniforms: {},
    vertexShader: document.getElementById('vertexShader').textContent,
    fragmentShader: document.getElementById('fragmentShader').textContent,
    side: THREE.BackSide,
    blending: THREE.AdditiveBlending,
    transparent: true
  });

uniforms = THREE.UniformsUtils.merge([
    THREE.UniformsLib["ambient"],
    THREE.UniformsLib["lights"]
  ]);
  uniforms.u_time = {
    type: 'f',
    value: 1.0
  };
  var mat4 = new THREE.ShaderMaterial({
    uniforms: uniforms,
    vertexShader: document.getElementById('vertexShader-paint').textContent,
    fragmentShader: document.getElementById('fragmentShader-paint').textContent,
    lights: true
  });

var planet = new THREE.Mesh(geo_planet, mat);
  planet.scale.x = planet.scale.y = planet.scale.z = 15;
  circle.add(planet);

var ball = new THREE.Mesh(geom3, mat3);
  ball.scale.x = ball.scale.y = ball.scale.z = 16;
  halo.add(ball);
  
  var ball2 = new THREE.Mesh(geom3, mat3);
  ball2.scale.x = ball2.scale.y = ball2.scale.z = 12;
  ball2.position.set(25,5,1)
  halo.add(ball2);

var ball3 = new THREE.Mesh(geom4, mat4);
  ball3.scale.x = ball3.scale.y = ball3.scale.z = 12;
  ball3.position.set(25,5,1)
  halo.add(ball3);
  
  var ambientLight = new THREE.AmbientLight(0x000000);
  scene.add(ambientLight);
  
  var hemiLight = new THREE.HemisphereLight(0x000000, 0x1111111, 20);
        hemiLight.position.set(-1, -1, 2);
  luminor.add(hemiLight);
 
  lights[1] = new THREE.DirectionalLight(0x000000, 7);
  lights[1].position.set(-1, 0, 0.5);
  lights[2] = new THREE.DirectionalLight(0x000000, 7);
  lights[2].position.set(1, 0, 0.5);

scene.add(lights[1]);
  scene.add(lights[2]);
  
  window.addEventListener('resize', onWindowResize, false);

};

function onWindowResize() {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

function animate() {
  uniforms.u_time.value += 0.05;
  var timer = 0.0001 * Date.now();
  requestAnimationFrame(animate);

particle.rotation.x += 0.0000;
  particle.rotation.y -= 0.0040;
  circle.rotation.z -= 0.005;
  
  halo.rotation.z -= 0.005;
  luminor.rotation.z -= 0.005;
  //halo.scale.x = Math.sin( timer * 3) * 0.09 + 1;
  //halo.scale.y = Math.sin( timer * 7 ) * 0.09 + 1;
  
  renderer.clear();
  renderer.render(scene, camera)
};

CSS

HTML

<div id="canvas"></div>
<script id="vertexShader" type="x-shader/x-vertex">
  varying vec3 vNormal; void main() { vNormal = normalize( normalMatrix * normal ); gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 ); }
</script>
<script id="fragmentShader" type="x-shader/x-vertex">
  varying vec3 vNormal; void main() { float intensity = pow( 0.7 - dot( vNormal, vec3( 0.0, 0.0, 0.5 ) ), 4.0 ); gl_FragColor = vec4( 1.3, 1.0, 1.0, 1.0 ) * intensity; }
</script>

varying vec3 vNormal;

varying float noise;
  uniform float u_time;

//
  // GLSL textureless classic 3D noise "cnoise",
  // with an RSL-style periodic variant "pnoise".
  // Author:  Stefan Gustavson (stefan.gustavson@liu.se)
  // Version: 2011-10-11
  //
  // Many thanks to Ian McEwan of Ashima Arts for the
  // ideas for permutation and gradient selection.
  //
  // Copyright (c) 2011 Stefan Gustavson. All rights reserved.
  // Distributed under the MIT license. See LICENSE file.
  // https://github.com/stegu/webgl-noise
  //

vec3 mod289(vec3 x)
  {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
  }

vec4 mod289(vec4 x)
  {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
  }

vec4 permute(vec4 x)
  {
    return mod289(((x*34.0)+1.0)*x);
  }

vec4 taylorInvSqrt(vec4 r)
  {
    return 1.79284291400159 - 0.85373472095314 * r;
  }

vec3 fade(vec3 t) {
    return t*t*t*(t*(t*6.0-15.0)+10.0);
  }

// Classic Perlin noise
  float cnoise(vec3 P)
  {
    vec3 Pi0 = floor(P); // Integer part for indexing
    vec3 Pi1 = Pi0 + vec3(1.0); // Integer part + 1
    Pi0 = mod289(Pi0);
    Pi1 = mod289(Pi1);
    vec3 Pf0 = fract(P); // Fractional part for interpolation
    vec3 Pf1 = Pf0 - vec3(1.0); // Fractional part - 1.0
    vec4 ix = vec4(Pi0.x, Pi1.x, Pi0.x, Pi1.x);
    vec4 iy = vec4(Pi0.yy, Pi1.yy);
    vec4 iz0 = Pi0.zzzz;
    vec4 iz1 = Pi1.zzzz;

vec4 ixy = permute(permute(ix) + iy);
    vec4 ixy0 = permute(ixy + iz0);
    vec4 ixy1 = permute(ixy + iz1);

vec4 gx0 = ixy0 * (1.0 / 7.0);
    vec4 gy0 = fract(floor(gx0) * (1.0 / 7.0)) - 0.5;
    gx0 = fract(gx0);
    vec4 gz0 = vec4(0.5) - abs(gx0) - abs(gy0);
    vec4 sz0 = step(gz0, vec4(0.0));
    gx0 -= sz0 * (step(0.0, gx0) - 0.5);
    gy0 -= sz0 * (step(0.0, gy0) - 0.5);

vec4 gx1 = ixy1 * (1.0 / 7.0);
    vec4 gy1 = fract(floor(gx1) * (1.0 / 7.0)) - 0.5;
    gx1 = fract(gx1);
    vec4 gz1 = vec4(0.5) - abs(gx1) - abs(gy1);
    vec4 sz1 = step(gz1, vec4(0.0));
    gx1 -= sz1 * (step(0.0, gx1) - 0.5);
    gy1 -= sz1 * (step(0.0, gy1) - 0.5);

vec3 g000 = vec3(gx0.x,gy0.x,gz0.x);
    vec3 g100 = vec3(gx0.y,gy0.y,gz0.y);
    vec3 g010 = vec3(gx0.z,gy0.z,gz0.z);
    vec3 g110 = vec3(gx0.w,gy0.w,gz0.w);
    vec3 g001 = vec3(gx1.x,gy1.x,gz1.x);
    vec3 g101 = vec3(gx1.y,gy1.y,gz1.y);
    vec3 g011 = vec3(gx1.z,gy1.z,gz1.z);
    vec3 g111 = vec3(gx1.w,gy1.w,gz1.w);

vec4 norm0 = taylorInvSqrt(vec4(dot(g000, g000), dot(g010, g010), dot(g100, g100), dot(g110, g110)));
    g000 *= norm0.x;
    g010 *= norm0.y;
    g100 *= norm0.z;
    g110 *= norm0.w;
    vec4 norm1 = taylorInvSqrt(vec4(dot(g001, g001), dot(g011, g011), dot(g101, g101), dot(g111, g111)));
    g001 *= norm1.x;
    g011 *= norm1.y;
    g101 *= norm1.z;
    g111 *= norm1.w;

float n000 = dot(g000, Pf0);
    float n100 = dot(g100, vec3(Pf1.x, Pf0.yz));
    float n010 = dot(g010, vec3(Pf0.x, Pf1.y, Pf0.z));
    float n110 = dot(g110, vec3(Pf1.xy, Pf0.z));
    float n001 = dot(g001, vec3(Pf0.xy, Pf1.z));
    float n101 = dot(g101, vec3(Pf1.x, Pf0.y, Pf1.z));
    float n011 = dot(g011, vec3(Pf0.x, Pf1.yz));
    float n111 = dot(g111, Pf1);

vec3 fade_xyz = fade(Pf0);
    vec4 n_z = mix(vec4(n000, n100, n010, n110), vec4(n001, n101, n011, n111), fade_xyz.z);
    vec2 n_yz = mix(n_z.xy, n_z.zw, fade_xyz.y);
    float n_xyz = mix(n_yz.x, n_yz.y, fade_xyz.x); 
    return 2.2 * n_xyz;
  }

// Classic Perlin noise, periodic variant
  float pnoise(vec3 P, vec3 rep)
  {
    vec3 Pi0 = mod(floor(P), rep); // Integer part, modulo period
    vec3 Pi1 = mod(Pi0 + vec3(1.0), rep); // Integer part + 1, mod period
    Pi0 = mod289(Pi0);
    Pi1 = mod289(Pi1);
    vec3 Pf0 = fract(P); // Fractional part for interpolation
    vec3 Pf1 = Pf0 - vec3(1.0); // Fractional part - 1.0
    vec4 ix = vec4(Pi0.x, Pi1.x, Pi0.x, Pi1.x);
    vec4 iy = vec4(Pi0.yy, Pi1.yy);
    vec4 iz0 = Pi0.zzzz;
    vec4 iz1 = Pi1.zzzz;

vec4 ixy = permute(permute(ix) + iy);
    vec4 ixy0 = permute(ixy + iz0);
    vec4 ixy1 = permute(ixy + iz1);

float turbulence (vec3 p) {
    float t = -0.5;
    for (float f = 1.0; f <= 10.0; f++) {
    	float power = pow(2.0, f);
      t += abs(pnoise(vec3(power * p), vec3(10.0)) / power);
    }
    return t;
  }

void main () {
    float baseTime = u_time * 0.0125;
    noise = 10.0 * -0.1 * turbulence(0.5 * normal + baseTime);
    float b = 0.0; // 5.0 * pnoise(0.05 * position + vec3(baseTime * 2.0), vec3(100.0));
    float displacement = -10.0 * noise + b;
    vec3 newPosition = position + normal * displacement;
    vNormal = normal;
    gl_Position = projectionMatrix * modelViewMatrix * vec4(newPosition, 1.0);
  }
</script>

varying float noise;
  varying vec3 vNormal;

uniform vec2 u_resolution;
  uniform float u_time;
  uniform sampler2D t_explosion;

vec3 pickColor (float r) {
  	r *= 0.75;
    if(r >= 0.0 && r < 0.35) {
    	return vec3(234.0/255.0,242.0/255.0,227.0/255.0);
		} else if(r >= 0.35 && r < 0.45) {
      return vec3(97.0/255.0,232.0/255.0,225.0/255.0);
		} else if(r >= 0.45 && r < 0.55) {
      return vec3(242.0/255.0,87.0/255.0,87.0/255.0);
		} else if(r >= 0.55 && r < 0.65) {
      return vec3(242.0/255.0,232.0/255.0,99.0/255.0);
		} else {
      return vec3(242.0/255.0,205.0/255.0,96.0/255.0);
		}
  }

float random (vec3 scale, float seed) {
    return fract(sin(dot(gl_FragCoord.xyz + seed, scale)) * 43758.5453 + seed);
  }

void main () {
    float r = 0.01 * random(vec3(12.9898, 78.233, 151.7182), 0.0);
    float pct = 1.0 - 1.3 * noise; // + r;
    vec3 light = vec3(0.5, 0.2, 1.0);
    light = normalize(light);
    float dProd = max(0.0, dot(vNormal, light));
    gl_FragColor = vec4(pickColor(pct) * dProd, 1.0);
  }
  
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/84/three.min.js"></script>

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