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3D effect for DigDig.IO
// ==UserScript==
// @name DigDig.IO 3D Effect
// @namespace http://tampermonkey.net/
// @version 0.1.2
// @description 3D effect for DigDig.IO
// @author Zertalious (Zert)
// @match *://digdig.io/*
// @icon https://www.google.com/s2/favicons?domain=digdig.io
// @require https://unpkg.com/three@latest/build/three.min.js
// @grant none
// ==/UserScript==
const CTX = CanvasRenderingContext2D.prototype;
CTX.createPattern = new Proxy( CTX.createPattern, {
apply( target, thisArgs, args ) {
console.log( args );
return Reflect.apply( ...arguments );
}
} )
const canvas = document.getElementById( 'canvas' );
canvas.style.opacity = '0';
const renderer = new THREE.WebGLRenderer( { alpha: true, preserveDrawingBuffer: true } );
renderer.domElement.style.position = 'absolute';
renderer.domElement.style.left = '0';
renderer.domElement.style.top = '0';
renderer.domElement.style.pointerEvents = 'none';
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.insertBefore( renderer.domElement, canvas );
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera( 60, 1, 0.1, 10 );
camera.position.z = Math.sin( camera.fov * Math.PI / 180 ) * 2;
const texture = new THREE.CanvasTexture( canvas );
texture.minFilter = texture.magFilter = THREE.NearestFilter;
const material = new THREE.RawShaderMaterial( {
vertexShader: `
attribute vec3 position;
varying vec3 vPosition;
void main() {
vPosition = position;
gl_Position = vec4( position, 1.0 );
}
`,
fragmentShader: `
precision mediump float;
uniform sampler2D map;
uniform float depth;
uniform mat4 modelViewMatrix;
uniform mat4 projectionMatrix;
varying vec3 vPosition;
void main() {
vec3 groundColor = vec3( 0.32, 0.18, 0.0 );
vec4 a;
const int count = 20;
for ( int i = 0; i <= count; i ++ ) {
vec4 p = projectionMatrix * modelViewMatrix * vec4( vec3( vPosition.xy, float( i ) / float( count ) * depth ), 1.0 );
vec4 b = texture2D( map, p.xy / p.w * 0.5 + 0.5 );
if ( length( b.rgb - groundColor ) < 0.1 ) {
if ( i != count ) {
b.a = 0.0;
}
} else if ( i != 0 ) {
b.rgb = groundColor * 0.8;
}
a.rgb = a.rgb * a.a + b.rgb * b.a * ( 1.0 - a.a );
a.a = a.a + b.a * ( 1.0 - a.a );
}
gl_FragColor = a;
}
`,
uniforms: {
map: {
value: texture
},
depth: {
value: 0.25
}
}
} );
const mesh = new THREE.Mesh( new THREE.PlaneGeometry( 2, 2 ), material );
scene.add( mesh );
window.addEventListener( 'resize', function () {
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.render( scene, camera );
} );
function animate() {
requestAnimationFrame( animate );
texture.needsUpdate = true;
renderer.render( scene, camera );
}
animate();