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HiZhaoxiaoyang/3D-Pixel-Art.markdown

Last active August 29, 2015 14:06
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A Pen by survivol.
Raw
3D-Pixel-Art.markdown
Raw
index.html
<div id="container"></div>
Raw
script.js
var DOT_SIZE = 16;
var X_START_POS = -128*16/16;
var Y_START_POS = -128*16/16;
var Z_START_POS = -128* 9/16;
var PARTICLE_NUM = 10000;
var PARTICLE_SIZE = DOT_SIZE;
var PARTICLE_RANGE = 110;
var PARTICLE_RANGE_HALF = PARTICLE_RANGE/2;
// ‥‥‥‥‥‥‥‥‥‥‥‥‥□□□
// ‥‥‥‥‥‥〓〓〓〓〓‥‥□□□
// ‥‥‥‥‥〓〓〓〓〓〓〓〓〓□□
// ‥‥‥‥‥■■■□□■□‥■■■
// ‥‥‥‥■□■□□□■□□■■■
// ‥‥‥‥■□■■□□□■□□□■
// ‥‥‥‥■■□□□□■■■■■‥
// ‥‥‥‥‥‥□□□□□□□■‥‥
// ‥‥■■■■■〓■■■〓■‥‥‥
// ‥■■■■■■■〓■■■〓‥‥■
// □□■■■■■■〓〓〓〓〓‥‥■
// □□□‥〓〓■〓〓□〓〓□〓■■
// ‥□‥■〓〓〓〓〓〓〓〓〓〓■■
// ‥‥■■■〓〓〓〓〓〓〓〓〓■■
// ‥■■■〓〓〓〓〓〓〓‥‥‥‥‥
// ‥■‥‥〓〓〓〓‥‥‥‥‥‥‥‥
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]
];
function getRgbColor(colorType)
{
var colorHash = {
"BK":"#000000", // black
"WH":"#FFFFFF", // white
"BG":"#FFCCCC", // beige
"BR":"#800000", // brown
"RD":"#FF0000", // red
"YL":"#FFFF00", // yellow
"GN":"#00FF00", // green
"WT":"#00FFFF", // water
"BL":"#0000FF", // blue
"PR":"#800080" // purple
};
return colorHash[colorType];
}
var renderer, scene, camera, particleSystem;
init();
animate();
function init() {
// dom
var container = document.getElementById('container');
// renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
container.appendChild(renderer.domElement);
// scene
scene = new THREE.Scene();
//camera
camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 10000);
camera.position.z = 400;
// particle system geometry
var geometry = new THREE.Geometry();
// vertex colors
var colors = [];
for (var j = 0; j < dataSet.length; j++) {
for (var i = 0; i < dataSet[j].length; i++) {
var x = (i % 16) * DOT_SIZE + X_START_POS;
var y = (16 - Math.floor(i / 16)) * DOT_SIZE + Y_START_POS;
var z = j * DOT_SIZE + Z_START_POS;
var vertex = new THREE.Vector3();
vertex.x = x;
vertex.y = y;
vertex.z = z;
var color = new THREE.Color();
if (dataSet[j][i] != "BK") {
color.setStyle(getRgbColor(dataSet[j][i]));
colors.push(color);
geometry.vertices.push(vertex);
var velocity = new THREE.Vector3(Math.random(), Math.random(), Math.random());
vertex.velocity = velocity;
}
}
}
geometry.colors = colors;
// material
material = new THREE.PointCloudMaterial({
size: DOT_SIZE * 2.5,
transparent: false,
opacity: 0.7,
blending: THREE.AdditiveBlending,
vertexColors: true
});
// particle system
particleSystem = new THREE.PointCloud(geometry, material);
particleSystem.rotation.y -= Math.PI / 2;
scene.add(particleSystem);
}
function animate() {
requestAnimationFrame(animate);
render();
}
function render() {
// rotate
particleSystem.rotation.y += 0.010;
// render
renderer.render(scene, camera);
}
Raw
style.css
* {
margin: 0;
padding: 0;
border: 0;
overflow: hidden;
}
body {
background: #000;
}
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