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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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HTML 

              
                <script type="x-shader/x-vertex" id="vertexShader">
  uniform float time;
    varying vec2 vUv;
    varying vec3 vNormal;
    varying vec3 vPos;

    void main() {
    vPos = position;
    vec3 newPos = position;
    vUv = uv;
    vNormal = normal;
    gl_Position = projectionMatrix * modelViewMatrix * vec4( newPos, 1.0 );
    }
</script>
<script type="x-shader/x-fragment" id="fragmentShader">
  uniform float time;
    varying vec2 vUv;
    
    float random (in vec2 _st) {
        return fract(sin(dot(_st.xy, vec2(12.9898,78.233))) * 43758.5453123);
    }
    
    float noise (in vec2 _st) {
        vec2 i = floor(_st);
        vec2 f = fract(_st);
        float a = random(i);
        float b = random(i + vec2(1.0, 0.0));
        float c = random(i + vec2(0.0, 1.0));
        float d = random(i + vec2(1.0, 1.0));
    
        vec2 u = f * f * (3.0 - 2.0 * f);
    
        return mix(a, b, u.x) +
                (c - a)* u.y * (1.0 - u.x) +
                (d - b) * u.x * u.y;
    }
    
    #define NUM_OCTAVES 4
    
    float fbm ( in vec2 _st) {
        float v = 0.0;
        float a = 0.5;
        vec2 shift = vec2(100.0);
        mat2 rot = mat2(cos(0.5), sin(0.5),
                        -sin(0.5), cos(0.50));
        for (int i = 0; i < NUM_OCTAVES; ++i) {
            v += a * noise(_st);
            _st = rot * _st * 2.0 + shift;
            a *= 0.5;
        }
        return v;
    }
    
    void main() {
        vec2 st = 20.0 * vUv;
        vec3 color = vec3(0.0);
        vec2 q = vec2(0.);
        q.x = fbm( st + 0.00*time);
        q.y = fbm( st + vec2(1.0));
        vec2 r = vec2(0.);
        r.x = fbm( st + q*3.1261 + vec2(6.4890,3.9225)+ 0.5771*time );
        r.y = fbm( st + q*0.5899 + vec2(3.4505,0.3149)+ 0.5978*time);
        float f = fbm(st+r);
        color = mix(vec3(0.0837, 0.5855, 0.7247),
                    vec3(0.8151,0.3307,0.5294),
                    clamp((f*f)*6.7746,0.0,1.0));
        color = mix(color,
                    vec3(0.1103,0.8393,0.2308),
                    clamp(length(q),0.0,1.0));
        color = mix(color,
                    vec3(0.5105,0.3042,0.7610),
                    clamp(length(r.x),0.0,1.0));
    
        gl_FragColor = vec4((f*f*f*0.9483+0.9943*f*f+0.7139*f)*color,1.);
    }
</script>
<canvas id="canvas"></canvas>
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CSS 

              
                body {
  margin: 0;
  display: flex;
  overflow: hidden;
  height: 100vh;
  justify-content: center;
  align-items: center;
}
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JS 

              
                let renderer, scene, camera;
const { max } = Math;
const { innerHeight, innerWidth, devicePixelRatio } = window;
const canvas = document.querySelector("#canvas");
const s = max(innerHeight, innerWidth) * devicePixelRatio;
canvas.width = s;
canvas.height = s;
renderer = new THREE.WebGLRenderer({ canvas, antialias: true });
const fov = 75;
const aspect = 1;
const near = 0.1;
const far = 20;
camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
camera.position.set(
  0.018642919740713196,
  0.062166257361373406,
  1.8988912022517688
);
camera.rotation.x = -0.032726499473191346;
camera.rotation.y = 0.00981222047356264;
camera.rotation.z = 0.00032122915379875284;

scene = new THREE.Scene();
const uniforms = {
  time: { type: "f", value: 1.0 }
};

const material = new THREE.ShaderMaterial({
  fragmentShader: document.getElementById("fragmentShader").textContent,
  vertexShader: document.getElementById("vertexShader").textContent,
  uniforms
});
const geometry = new THREE.PlaneGeometry(3, 3, 32);
const plane = new THREE.Mesh(geometry, material);
scene.add(plane);
function resizeRendererToDisplaySize(renderer) {
  const canvas = renderer.domElement;
  const { innerHeight, innerWidth, devicePixelRatio } = window;
  const s = max(innerHeight, innerWidth) * devicePixelRatio;
  const needResize = canvas.width !== s || canvas.height !== s;
  if (needResize) {
    renderer.setSize(s, s, false);
  }
  return needResize;
}

function render(time) {
  time *= 0.001;
  uniforms.time.value = time;
  if (resizeRendererToDisplaySize(renderer)) {
    camera.aspect = 1;
    camera.updateProjectionMatrix();
  }

  renderer.render(scene, camera);

  requestAnimationFrame(render);
}

requestAnimationFrame(render);
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999px

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