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css3d_sprites.html
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<!DOCTYPE html>
<html>
<head>
<title>Verge3D css3d - sprites</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
<style>
body {
background-color: #fff;
color: #000;
}
a {
color: #48f;
}
</style>
</head>
<body>
<div id="info"><a href="https://www.soft8soft.com/verge3d" target="_blank" rel="noopener">Verge3D</a> css3d - sprites</div>
<div id="container"></div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"v3d": "../build/v3d.module.js",
"v3d/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as v3d from 'v3d';
import { TWEEN } from 'v3d/addons/libs/tween.module.min.js';
import { TrackballControls } from 'v3d/addons/controls/TrackballControls.js';
import { CSS3DRenderer, CSS3DSprite } from 'v3d/addons/renderers/CSS3DRenderer.js';
let camera, scene, renderer;
let controls;
const particlesTotal = 512;
const positions = [];
const objects = [];
let current = 0;
init();
animate();
function init() {
camera = new v3d.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 5000);
camera.position.set(600, 400, 1500);
camera.lookAt(0, 0, 0);
scene = new v3d.Scene();
const image = document.createElement('img');
image.addEventListener('load', function() {
for (let i = 0; i < particlesTotal; i++) {
const object = new CSS3DSprite(image.cloneNode());
object.position.x = Math.random() * 4000 - 2000,
object.position.y = Math.random() * 4000 - 2000,
object.position.z = Math.random() * 4000 - 2000;
scene.add(object);
objects.push(object);
}
transition();
});
image.src = 'textures/sprite.png';
// Plane
const amountX = 16;
const amountZ = 32;
const separationPlane = 150;
const offsetX = ((amountX - 1) * separationPlane) / 2;
const offsetZ = ((amountZ - 1) * separationPlane) / 2;
for (let i = 0; i < particlesTotal; i++) {
const x = (i % amountX) * separationPlane;
const z = Math.floor(i / amountX) * separationPlane;
const y = (Math.sin(x * 0.5) + Math.sin(z * 0.5)) * 200;
positions.push(x - offsetX, y, z - offsetZ);
}
// Cube
const amount = 8;
const separationCube = 150;
const offset = ((amount - 1) * separationCube) / 2;
for (let i = 0; i < particlesTotal; i++) {
const x = (i % amount) * separationCube;
const y = Math.floor((i / amount) % amount) * separationCube;
const z = Math.floor(i / (amount * amount)) * separationCube;
positions.push(x - offset, y - offset, z - offset);
}
// Random
for (let i = 0; i < particlesTotal; i++) {
positions.push(
Math.random() * 4000 - 2000,
Math.random() * 4000 - 2000,
Math.random() * 4000 - 2000
);
}
// Sphere
const radius = 750;
for (let i = 0; i < particlesTotal; i++) {
const phi = Math.acos(- 1 + (2 * i) / particlesTotal);
const theta = Math.sqrt(particlesTotal * Math.PI) * phi;
positions.push(
radius * Math.cos(theta) * Math.sin(phi),
radius * Math.sin(theta) * Math.sin(phi),
radius * Math.cos(phi)
);
}
//
renderer = new CSS3DRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.getElementById('container').appendChild(renderer.domElement);
//
controls = new TrackballControls(camera, renderer.domElement);
//
window.addEventListener('resize', onWindowResize);
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
function transition() {
const offset = current * particlesTotal * 3;
const duration = 2000;
for (let i = 0, j = offset; i < particlesTotal; i++, j += 3) {
const object = objects[i];
new TWEEN.Tween(object.position)
.to({
x: positions[j],
y: positions[j + 1],
z: positions[j + 2]
}, Math.random() * duration + duration)
.easing(TWEEN.Easing.Exponential.InOut)
.start();
}
new TWEEN.Tween(this)
.to({}, duration * 3)
.onComplete(transition)
.start();
current = (current + 1) % 4;
}
function animate() {
requestAnimationFrame(animate);
TWEEN.update();
controls.update();
const time = performance.now();
for (let i = 0, l = objects.length; i < l; i++) {
const object = objects[i];
const scale = Math.sin((Math.floor(object.position.x) + time) * 0.002) * 0.3 + 1;
object.scale.set(scale, scale, scale);
}
renderer.render(scene, camera);
}
</script>
</body>
</html>