<!-- 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 - Transparency - Intersecting Planes</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@1.8.0/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../../build/three.module.js",
"three/addons/": "../../examples/jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
function main() {
const canvas = document.querySelector( '#c' );
const renderer = new THREE.WebGLRenderer( { antialias: true, canvas } );
const fov = 75;
const aspect = 2; // the canvas default
const near = 0.1;
const far = 25;
const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
camera.position.set( 0.5, 1, 0.5 );
const controls = new OrbitControls( camera, canvas );
controls.target.set( 0, 0, 0 );
controls.update();
const scene = new THREE.Scene();
scene.background = new THREE.Color( 'white' );
function addLight( x, y, z ) {
const color = 0xFFFFFF;
const intensity = 3;
const light = new THREE.DirectionalLight( color, intensity );
light.position.set( x, y, z );
scene.add( light );
}
addLight( - 1, 2, 4 );
addLight( 1, - 1, - 2 );
const planeWidth = 1;
const planeHeight = 1;
const geometry = new THREE.PlaneGeometry( planeWidth, planeHeight );
const loader = new THREE.TextureLoader();
function makeInstance( geometry, color, rotY, url ) {
const texture = loader.load( url, render );
texture.colorSpace = THREE.SRGBColorSpace;
const material = new THREE.MeshPhongMaterial( {
color,
map: texture,
opacity: 0.5,
transparent: true,
side: THREE.DoubleSide,
} );
const mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
mesh.rotation.y = rotY;
}
makeInstance( geometry, 'pink', 0, 'resources/images/happyface.png' ); /* threejs.org: url */
makeInstance( geometry, 'lightblue', Math.PI * 0.5, 'resources/images/hmmmface.png' ); /* threejs.org: url */
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;
}
let renderRequested = false;
function render() {
renderRequested = undefined;
if ( resizeRendererToDisplaySize( renderer ) ) {
const canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
}
renderer.render( scene, camera );
}
render();
function requestRenderIfNotRequested() {
if ( ! renderRequested ) {
renderRequested = true;
requestAnimationFrame( render );
}
}
controls.addEventListener( 'change', requestRenderIfNotRequested );
window.addEventListener( 'resize', requestRenderIfNotRequested );
}
main();
</script>
</html>