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<!-- Licensed under a BSD license. See license.html for license -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>Three.js - Shadertoy Bleepy Blocks</title>
<style>
html, body {
height: 100%;
margin: 0;
}
#c {
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
</body>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../../build/three.module.js"
}
}
</script>
<script type="module">
import * as THREE from 'three';
function main() {
const canvas = document.querySelector('#c');
const renderer = new THREE.WebGLRenderer({canvas});
renderer.autoClearColor = false;
const camera = new THREE.OrthographicCamera(
-1, // left
1, // right
1, // top
-1, // bottom
-1, // near,
1, // far
);
const scene = new THREE.Scene();
const plane = new THREE.PlaneGeometry(2, 2);
const fragmentShader = `
#include <common>
uniform vec3 iResolution;
uniform float iTime;
uniform sampler2D iChannel0;
// By Daedelus: https://www.shadertoy.com/user/Daedelus
// license: Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
#define TIMESCALE 0.25
#define TILES 8
#define COLOR 0.7, 1.6, 2.8
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
vec2 uv = fragCoord.xy / iResolution.xy;
uv.x *= iResolution.x / iResolution.y;
vec4 noise = texture2D(iChannel0, floor(uv * float(TILES)) / float(TILES));
float p = 1.0 - mod(noise.r + noise.g + noise.b + iTime * float(TIMESCALE), 1.0);
p = min(max(p * 3.0 - 1.8, 0.1), 2.0);
vec2 r = mod(uv * float(TILES), 1.0);
r = vec2(pow(r.x - 0.5, 2.0), pow(r.y - 0.5, 2.0));
p *= 1.0 - pow(min(1.0, 12.0 * dot(r, r)), 2.0);
fragColor = vec4(COLOR, 1.0) * p;
}
void main() {
mainImage(gl_FragColor, gl_FragCoord.xy);
}
`;
const loader = new THREE.TextureLoader();
const texture = loader.load('resources/images/bayer.png');
texture.minFilter = THREE.NearestFilter;
texture.magFilter = THREE.NearestFilter;
texture.wrapS = THREE.RepeatWrapping;
texture.wrapT = THREE.RepeatWrapping;
const uniforms = {
iTime: { value: 0 },
iResolution: { value: new THREE.Vector3() },
iChannel0: { value: texture },
};
const material = new THREE.ShaderMaterial({
fragmentShader,
uniforms,
});
scene.add(new THREE.Mesh(plane, material));
function resizeRendererToDisplaySize(renderer) {
const canvas = renderer.domElement;
const width = canvas.clientWidth;
const height = canvas.clientHeight;
const needResize = canvas.width !== width || canvas.height !== height;
if (needResize) {
renderer.setSize(width, height, false);
}
return needResize;
}
function render(time) {
time *= 0.001; // convert to seconds
resizeRendererToDisplaySize(renderer);
const canvas = renderer.domElement;
uniforms.iResolution.value.set(canvas.width, canvas.height, 1);
uniforms.iTime.value = time;
renderer.render(scene, camera);
requestAnimationFrame(render);
}
requestAnimationFrame(render);
}
main();
</script>
</html>