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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - shadow map</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">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - shadowmap - models by <a href="https://mirada.com/" target="_blank" rel="noopener">mirada</a> from <a href="http://www.ro.me" target="_blank" rel="noopener">rome</a><br />
move camera with WASD / RF + mouse<br />
t: toggle HUD
</div>
<!-- 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",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/libs/stats.module.js';
import { FirstPersonControls } from 'three/addons/controls/FirstPersonControls.js';
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
import { FontLoader } from 'three/addons/loaders/FontLoader.js';
import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';
import { ShadowMapViewer } from 'three/addons/utils/ShadowMapViewer.js';
const SHADOW_MAP_WIDTH = 2048, SHADOW_MAP_HEIGHT = 1024;
let SCREEN_WIDTH = window.innerWidth;
let SCREEN_HEIGHT = window.innerHeight;
const FLOOR = - 250;
let camera, controls, scene, renderer;
let container, stats;
const NEAR = 10, FAR = 3000;
let mixer;
const morphs = [];
let light;
let lightShadowMapViewer;
const clock = new THREE.Clock();
let showHUD = false;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
// CAMERA
camera = new THREE.PerspectiveCamera( 23, SCREEN_WIDTH / SCREEN_HEIGHT, NEAR, FAR );
camera.position.set( 700, 50, 1900 );
// SCENE
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x59472b );
scene.fog = new THREE.Fog( 0x59472b, 1000, FAR );
// LIGHTS
const ambient = new THREE.AmbientLight( 0x444444 );
scene.add( ambient );
light = new THREE.SpotLight( 0xffffff, 1, 0, Math.PI / 5, 0.3 );
light.position.set( 0, 1500, 1000 );
light.target.position.set( 0, 0, 0 );
light.castShadow = true;
light.shadow.camera.near = 1200;
light.shadow.camera.far = 2500;
light.shadow.bias = 0.0001;
light.shadow.mapSize.width = SHADOW_MAP_WIDTH;
light.shadow.mapSize.height = SHADOW_MAP_HEIGHT;
scene.add( light );
createHUD();
createScene();
// RENDERER
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
container.appendChild( renderer.domElement );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.autoClear = false;
//
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFShadowMap;
// CONTROLS
controls = new FirstPersonControls( camera, renderer.domElement );
controls.lookSpeed = 0.0125;
controls.movementSpeed = 500;
controls.noFly = false;
controls.lookVertical = true;
controls.lookAt( scene.position );
// STATS
stats = new Stats();
//container.appendChild( stats.dom );
//
window.addEventListener( 'resize', onWindowResize );
window.addEventListener( 'keydown', onKeyDown );
}
function onWindowResize() {
SCREEN_WIDTH = window.innerWidth;
SCREEN_HEIGHT = window.innerHeight;
camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
camera.updateProjectionMatrix();
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
controls.handleResize();
}
function onKeyDown( event ) {
switch ( event.keyCode ) {
case 84: /*t*/
showHUD = ! showHUD;
break;
}
}
function createHUD() {
lightShadowMapViewer = new ShadowMapViewer( light );
lightShadowMapViewer.position.x = 10;
lightShadowMapViewer.position.y = SCREEN_HEIGHT - ( SHADOW_MAP_HEIGHT / 4 ) - 10;
lightShadowMapViewer.size.width = SHADOW_MAP_WIDTH / 4;
lightShadowMapViewer.size.height = SHADOW_MAP_HEIGHT / 4;
lightShadowMapViewer.update();
}
function createScene( ) {
// GROUND
const geometry = new THREE.PlaneGeometry( 100, 100 );
const planeMaterial = new THREE.MeshPhongMaterial( { color: 0xffb851 } );
const ground = new THREE.Mesh( geometry, planeMaterial );
ground.position.set( 0, FLOOR, 0 );
ground.rotation.x = - Math.PI / 2;
ground.scale.set( 100, 100, 100 );
ground.castShadow = false;
ground.receiveShadow = true;
scene.add( ground );
// TEXT
const loader = new FontLoader();
loader.load( 'fonts/helvetiker_bold.typeface.json', function ( font ) {
const textGeo = new TextGeometry( 'THREE.JS', {
font: font,
size: 200,
height: 50,
curveSegments: 12,
bevelThickness: 2,
bevelSize: 5,
bevelEnabled: true
} );
textGeo.computeBoundingBox();
const centerOffset = - 0.5 * ( textGeo.boundingBox.max.x - textGeo.boundingBox.min.x );
const textMaterial = new THREE.MeshPhongMaterial( { color: 0xff0000, specular: 0xffffff } );
const mesh = new THREE.Mesh( textGeo, textMaterial );
mesh.position.x = centerOffset;
mesh.position.y = FLOOR + 67;
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh );
} );
// CUBES
const cubes1 = new THREE.Mesh( new THREE.BoxGeometry( 1500, 220, 150 ), planeMaterial );
cubes1.position.y = FLOOR - 50;
cubes1.position.z = 20;
cubes1.castShadow = true;
cubes1.receiveShadow = true;
scene.add( cubes1 );
const cubes2 = new THREE.Mesh( new THREE.BoxGeometry( 1600, 170, 250 ), planeMaterial );
cubes2.position.y = FLOOR - 50;
cubes2.position.z = 20;
cubes2.castShadow = true;
cubes2.receiveShadow = true;
scene.add( cubes2 );
// MORPHS
mixer = new THREE.AnimationMixer( scene );
function addMorph( mesh, clip, speed, duration, x, y, z, fudgeColor ) {
mesh = mesh.clone();
mesh.material = mesh.material.clone();
if ( fudgeColor ) {
mesh.material.color.offsetHSL( 0, Math.random() * 0.5 - 0.25, Math.random() * 0.5 - 0.25 );
}
mesh.speed = speed;
mixer.clipAction( clip, mesh ).
setDuration( duration ).
// to shift the playback out of phase:
startAt( - duration * Math.random() ).
play();
mesh.position.set( x, y, z );
mesh.rotation.y = Math.PI / 2;
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh );
morphs.push( mesh );
}
const gltfloader = new GLTFLoader();
gltfloader.load( 'models/gltf/Horse.glb', function ( gltf ) {
const mesh = gltf.scene.children[ 0 ];
const clip = gltf.animations[ 0 ];
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, 300, true );
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, 450, true );
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, 600, true );
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, - 300, true );
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, - 450, true );
addMorph( mesh, clip, 550, 1, 100 - Math.random() * 1000, FLOOR, - 600, true );
} );
gltfloader.load( 'models/gltf/Flamingo.glb', function ( gltf ) {
const mesh = gltf.scene.children[ 0 ];
const clip = gltf.animations[ 0 ];
addMorph( mesh, clip, 500, 1, 500 - Math.random() * 500, FLOOR + 350, 40 );
} );
gltfloader.load( 'models/gltf/Stork.glb', function ( gltf ) {
const mesh = gltf.scene.children[ 0 ];
const clip = gltf.animations[ 0 ];
addMorph( mesh, clip, 350, 1, 500 - Math.random() * 500, FLOOR + 350, 340 );
} );
gltfloader.load( 'models/gltf/Parrot.glb', function ( gltf ) {
const mesh = gltf.scene.children[ 0 ];
const clip = gltf.animations[ 0 ];
addMorph( mesh, clip, 450, 0.5, 500 - Math.random() * 500, FLOOR + 300, 700 );
} );
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
const delta = clock.getDelta();
mixer.update( delta );
for ( let i = 0; i < morphs.length; i ++ ) {
const morph = morphs[ i ];
morph.position.x += morph.speed * delta;
if ( morph.position.x > 2000 ) {
morph.position.x = - 1000 - Math.random() * 500;
}
}
controls.update( delta );
renderer.clear();
renderer.render( scene, camera );
// Render debug HUD with shadow map
if ( showHUD ) {
lightShadowMapViewer.render( renderer );
}
}
</script>
</body>
</html>