You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
331 lines
7.6 KiB
HTML
331 lines
7.6 KiB
HTML
2 months ago
|
<!-- 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 - Shadows - Directional Light w/CameraHelper</title>
|
||
|
|
<style>
|
||
|
|
html, body {
|
||
|
|
margin: 0;
|
||
|
|
height: 100%;
|
||
|
|
}
|
||
|
|
#c {
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
display: block;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<canvas id="c"></canvas>
|
||
|
|
</body>
|
||
|
|
<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';
|
||
|
|
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
|
||
|
|
|
||
|
|
function main() {
|
||
|
|
|
||
|
|
const canvas = document.querySelector( '#c' );
|
||
|
|
const renderer = new THREE.WebGLRenderer( { antialias: true, canvas } );
|
||
|
|
renderer.shadowMap.enabled = true;
|
||
|
|
|
||
|
|
const fov = 45;
|
||
|
|
const aspect = 2; // the canvas default
|
||
|
|
const near = 0.1;
|
||
|
|
const far = 100;
|
||
|
|
const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
|
||
|
|
camera.position.set( - 1.4, 14, 12 );
|
||
|
|
|
||
|
|
const controls = new OrbitControls( camera, canvas );
|
||
|
|
controls.target.set( 0, 5, 0 );
|
||
|
|
controls.update();
|
||
|
|
|
||
|
|
const scene = new THREE.Scene();
|
||
|
|
scene.background = new THREE.Color( 'black' );
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
const planeSize = 40;
|
||
|
|
|
||
|
|
const loader = new THREE.TextureLoader();
|
||
|
|
const texture = loader.load( 'resources/images/checker.png' );
|
||
|
|
texture.wrapS = THREE.RepeatWrapping;
|
||
|
|
texture.wrapT = THREE.RepeatWrapping;
|
||
|
|
texture.magFilter = THREE.NearestFilter;
|
||
|
|
texture.colorSpace = THREE.SRGBColorSpace;
|
||
|
|
const repeats = planeSize / 2;
|
||
|
|
texture.repeat.set( repeats, repeats );
|
||
|
|
|
||
|
|
const planeGeo = new THREE.PlaneGeometry( planeSize, planeSize, planeSize, planeSize );
|
||
|
|
const positionAttribute = planeGeo.attributes.position;
|
||
|
|
for ( let i = 0; i < positionAttribute.count; ++ i ) {
|
||
|
|
|
||
|
|
positionAttribute.setZ( i, Math.random() * .2 );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
planeGeo.computeVertexNormals();
|
||
|
|
|
||
|
|
const planeMat = new THREE.MeshPhongMaterial( {
|
||
|
|
map: texture,
|
||
|
|
flatShading: true,
|
||
|
|
} );
|
||
|
|
const mesh = new THREE.Mesh( planeGeo, planeMat );
|
||
|
|
mesh.castShadow = true;
|
||
|
|
mesh.receiveShadow = true;
|
||
|
|
mesh.rotation.x = Math.PI * - .5;
|
||
|
|
scene.add( mesh );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
{
|
||
|
|
const sphereRadius = 4;
|
||
|
|
const sphereWidthDivisions = 32;
|
||
|
|
const sphereHeightDivisions = 16;
|
||
|
|
const phiStart = 0;
|
||
|
|
const phiLength = Math.PI * 2;
|
||
|
|
const thetaStart = Math.PI * .5;
|
||
|
|
const thetaLength = Math.PI * .5;
|
||
|
|
const sphereGeo = new THREE.SphereGeometry(
|
||
|
|
sphereRadius,
|
||
|
|
sphereWidthDivisions,
|
||
|
|
sphereHeightDivisions,
|
||
|
|
phiStart,
|
||
|
|
phiLength,
|
||
|
|
thetaStart,
|
||
|
|
thetaLength,
|
||
|
|
);
|
||
|
|
const sphereMat = new THREE.MeshPhongMaterial({
|
||
|
|
color: '#AC8',
|
||
|
|
side: THREE.DoubleSide,
|
||
|
|
});
|
||
|
|
const mesh = new THREE.Mesh(sphereGeo, sphereMat);
|
||
|
|
mesh.castShadow = true;
|
||
|
|
mesh.receiveShadow = true;
|
||
|
|
mesh.position.set(0, sphereRadius + 2, 0);
|
||
|
|
scene.add(mesh);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
{
|
||
|
|
|
||
|
|
const sphereRadius = 4;
|
||
|
|
const sphereWidthDivisions = 32;
|
||
|
|
const sphereHeightDivisions = 16;
|
||
|
|
const sphereGeo = new THREE.SphereGeometry(
|
||
|
|
sphereRadius,
|
||
|
|
sphereWidthDivisions,
|
||
|
|
sphereHeightDivisions,
|
||
|
|
);
|
||
|
|
const sphereMat = new THREE.MeshPhongMaterial( {
|
||
|
|
color: '#AC8',
|
||
|
|
} );
|
||
|
|
const mesh = new THREE.Mesh( sphereGeo, sphereMat );
|
||
|
|
mesh.castShadow = true;
|
||
|
|
mesh.receiveShadow = true;
|
||
|
|
mesh.position.set( 0, 0, 0 );
|
||
|
|
scene.add( mesh );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
class ColorGUIHelper {
|
||
|
|
|
||
|
|
constructor( object, prop ) {
|
||
|
|
|
||
|
|
this.object = object;
|
||
|
|
this.prop = prop;
|
||
|
|
|
||
|
|
}
|
||
|
|
get value() {
|
||
|
|
|
||
|
|
return `#${this.object[ this.prop ].getHexString()}`;
|
||
|
|
|
||
|
|
}
|
||
|
|
set value( hexString ) {
|
||
|
|
|
||
|
|
this.object[ this.prop ].set( hexString );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function makeXYZGUI( gui, vector3, name, onChangeFn ) {
|
||
|
|
|
||
|
|
const folder = gui.addFolder( name );
|
||
|
|
folder.add( vector3, 'x', - 10, 10 ).onChange( onChangeFn );
|
||
|
|
folder.add( vector3, 'y', 0, 10 ).onChange( onChangeFn );
|
||
|
|
folder.add( vector3, 'z', - 10, 10 ).onChange( onChangeFn );
|
||
|
|
// folder.open();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
const color = 0xFFFFFF;
|
||
|
|
const intensity = 3;
|
||
|
|
const light = new THREE.DirectionalLight( color, intensity );
|
||
|
|
light.castShadow = true;
|
||
|
|
light.position.set( 4, 10, 5 );
|
||
|
|
light.target.position.set( - 4, 1, - 4 );
|
||
|
|
scene.add( light );
|
||
|
|
scene.add( light.target );
|
||
|
|
//light.shadow.bias = -0.001;
|
||
|
|
light.shadow.camera.near = 0.000001;
|
||
|
|
light.shadow.camera.far = 1000000;
|
||
|
|
|
||
|
|
const cameraHelper = new THREE.CameraHelper( light.shadow.camera );
|
||
|
|
scene.add( cameraHelper );
|
||
|
|
|
||
|
|
const helper = new THREE.DirectionalLightHelper( light );
|
||
|
|
scene.add( helper );
|
||
|
|
|
||
|
|
function updateCamera() {
|
||
|
|
|
||
|
|
// update the light target's matrixWorld because it's needed by the helper
|
||
|
|
light.target.updateMatrixWorld();
|
||
|
|
helper.update();
|
||
|
|
// update the light's shadow camera's projection matrix
|
||
|
|
light.shadow.camera.updateProjectionMatrix();
|
||
|
|
// and now update the camera helper we're using to show the light's shadow camera
|
||
|
|
cameraHelper.update();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
updateCamera();
|
||
|
|
|
||
|
|
class DimensionGUIHelper {
|
||
|
|
|
||
|
|
constructor( obj, minProp, maxProp ) {
|
||
|
|
|
||
|
|
this.obj = obj;
|
||
|
|
this.minProp = minProp;
|
||
|
|
this.maxProp = maxProp;
|
||
|
|
|
||
|
|
}
|
||
|
|
get value() {
|
||
|
|
|
||
|
|
return this.obj[ this.maxProp ] * 2;
|
||
|
|
|
||
|
|
}
|
||
|
|
set value( v ) {
|
||
|
|
|
||
|
|
this.obj[ this.maxProp ] = v / 2;
|
||
|
|
this.obj[ this.minProp ] = v / - 2;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
class MinMaxGUIHelper {
|
||
|
|
|
||
|
|
constructor( obj, minProp, maxProp, minDif ) {
|
||
|
|
|
||
|
|
this.obj = obj;
|
||
|
|
this.minProp = minProp;
|
||
|
|
this.maxProp = maxProp;
|
||
|
|
this.minDif = minDif;
|
||
|
|
|
||
|
|
}
|
||
|
|
get min() {
|
||
|
|
|
||
|
|
return this.obj[ this.minProp ];
|
||
|
|
|
||
|
|
}
|
||
|
|
set min( v ) {
|
||
|
|
|
||
|
|
this.obj[ this.minProp ] = v;
|
||
|
|
this.obj[ this.maxProp ] = Math.max( this.obj[ this.maxProp ], v + this.minDif );
|
||
|
|
|
||
|
|
}
|
||
|
|
get max() {
|
||
|
|
|
||
|
|
return this.obj[ this.maxProp ];
|
||
|
|
|
||
|
|
}
|
||
|
|
set max( v ) {
|
||
|
|
|
||
|
|
this.obj[ this.maxProp ] = v;
|
||
|
|
this.min = this.min; // this will call the min setter
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
const gui = new GUI();
|
||
|
|
gui.addColor( new ColorGUIHelper( light, 'color' ), 'value' ).name( 'color' );
|
||
|
|
gui.add( light, 'intensity', 0, 10 );
|
||
|
|
{
|
||
|
|
|
||
|
|
const folder = gui.addFolder( 'Shadow Camera' );
|
||
|
|
folder.open();
|
||
|
|
folder.add( new DimensionGUIHelper( light.shadow.camera, 'left', 'right' ), 'value', 1, 100 )
|
||
|
|
.name( 'width' )
|
||
|
|
.onChange( updateCamera );
|
||
|
|
folder.add( new DimensionGUIHelper( light.shadow.camera, 'bottom', 'top' ), 'value', 1, 100 )
|
||
|
|
.name( 'height' )
|
||
|
|
.onChange( updateCamera );
|
||
|
|
const minMaxGUIHelper = new MinMaxGUIHelper( light.shadow.camera, 'near', 'far', 0.1 );
|
||
|
|
folder.add( minMaxGUIHelper, 'min', 0.1, 50, 0.1 ).name( 'near' ).onChange( updateCamera );
|
||
|
|
folder.add( minMaxGUIHelper, 'max', 0.1, 50, 0.1 ).name( 'far' ).onChange( updateCamera );
|
||
|
|
folder.add( light.shadow.camera, 'zoom', 0.01, 1.5, 0.01 ).onChange( updateCamera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
makeXYZGUI( gui, light.position, 'position', updateCamera );
|
||
|
|
makeXYZGUI( gui, light.target.position, 'target', updateCamera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function render() {
|
||
|
|
|
||
|
|
resizeRendererToDisplaySize( renderer );
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
const canvas = renderer.domElement;
|
||
|
|
camera.aspect = canvas.clientWidth / canvas.clientHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
requestAnimationFrame( render );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
requestAnimationFrame( render );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
main();
|
||
|
|
</script>
|
||
|
|
</html>
|