You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
442 lines
13 KiB
442 lines
13 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - geometry - shapes</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: #f0f0f0;
|
|
color: #444;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
|
|
<div id="info">Simple procedurally-generated shapes</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';
|
|
|
|
let container, stats;
|
|
|
|
let camera, scene, renderer;
|
|
|
|
let group;
|
|
|
|
let targetRotation = 0;
|
|
let targetRotationOnPointerDown = 0;
|
|
|
|
let pointerX = 0;
|
|
let pointerXOnPointerDown = 0;
|
|
|
|
let windowHalfX = window.innerWidth / 2;
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
scene = new THREE.Scene();
|
|
scene.background = new THREE.Color( 0xf0f0f0 );
|
|
|
|
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
|
|
camera.position.set( 0, 150, 500 );
|
|
scene.add( camera );
|
|
|
|
const light = new THREE.PointLight( 0xffffff, 0.8 );
|
|
camera.add( light );
|
|
|
|
group = new THREE.Group();
|
|
group.position.y = 50;
|
|
scene.add( group );
|
|
|
|
const loader = new THREE.TextureLoader();
|
|
const texture = loader.load( 'textures/uv_grid_opengl.jpg' );
|
|
|
|
// it's necessary to apply these settings in order to correctly display the texture on a shape geometry
|
|
|
|
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
|
|
texture.repeat.set( 0.008, 0.008 );
|
|
|
|
function addShape( shape, extrudeSettings, color, x, y, z, rx, ry, rz, s ) {
|
|
|
|
// flat shape with texture
|
|
// note: default UVs generated by THREE.ShapeGeometry are simply the x- and y-coordinates of the vertices
|
|
|
|
let geometry = new THREE.ShapeGeometry( shape );
|
|
|
|
let mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { side: THREE.DoubleSide, map: texture } ) );
|
|
mesh.position.set( x, y, z - 175 );
|
|
mesh.rotation.set( rx, ry, rz );
|
|
mesh.scale.set( s, s, s );
|
|
group.add( mesh );
|
|
|
|
// flat shape
|
|
|
|
geometry = new THREE.ShapeGeometry( shape );
|
|
|
|
mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { color: color, side: THREE.DoubleSide } ) );
|
|
mesh.position.set( x, y, z - 125 );
|
|
mesh.rotation.set( rx, ry, rz );
|
|
mesh.scale.set( s, s, s );
|
|
group.add( mesh );
|
|
|
|
// extruded shape
|
|
|
|
geometry = new THREE.ExtrudeGeometry( shape, extrudeSettings );
|
|
|
|
mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { color: color } ) );
|
|
mesh.position.set( x, y, z - 75 );
|
|
mesh.rotation.set( rx, ry, rz );
|
|
mesh.scale.set( s, s, s );
|
|
group.add( mesh );
|
|
|
|
addLineShape( shape, color, x, y, z, rx, ry, rz, s );
|
|
|
|
}
|
|
|
|
function addLineShape( shape, color, x, y, z, rx, ry, rz, s ) {
|
|
|
|
// lines
|
|
|
|
shape.autoClose = true;
|
|
|
|
const points = shape.getPoints();
|
|
const spacedPoints = shape.getSpacedPoints( 50 );
|
|
|
|
const geometryPoints = new THREE.BufferGeometry().setFromPoints( points );
|
|
const geometrySpacedPoints = new THREE.BufferGeometry().setFromPoints( spacedPoints );
|
|
|
|
// solid line
|
|
|
|
let line = new THREE.Line( geometryPoints, new THREE.LineBasicMaterial( { color: color } ) );
|
|
line.position.set( x, y, z - 25 );
|
|
line.rotation.set( rx, ry, rz );
|
|
line.scale.set( s, s, s );
|
|
group.add( line );
|
|
|
|
// line from equidistance sampled points
|
|
|
|
line = new THREE.Line( geometrySpacedPoints, new THREE.LineBasicMaterial( { color: color } ) );
|
|
line.position.set( x, y, z + 25 );
|
|
line.rotation.set( rx, ry, rz );
|
|
line.scale.set( s, s, s );
|
|
group.add( line );
|
|
|
|
// vertices from real points
|
|
|
|
let particles = new THREE.Points( geometryPoints, new THREE.PointsMaterial( { color: color, size: 4 } ) );
|
|
particles.position.set( x, y, z + 75 );
|
|
particles.rotation.set( rx, ry, rz );
|
|
particles.scale.set( s, s, s );
|
|
group.add( particles );
|
|
|
|
// equidistance sampled points
|
|
|
|
particles = new THREE.Points( geometrySpacedPoints, new THREE.PointsMaterial( { color: color, size: 4 } ) );
|
|
particles.position.set( x, y, z + 125 );
|
|
particles.rotation.set( rx, ry, rz );
|
|
particles.scale.set( s, s, s );
|
|
group.add( particles );
|
|
|
|
}
|
|
|
|
|
|
// California
|
|
|
|
const californiaPts = [];
|
|
|
|
californiaPts.push( new THREE.Vector2( 610, 320 ) );
|
|
californiaPts.push( new THREE.Vector2( 450, 300 ) );
|
|
californiaPts.push( new THREE.Vector2( 392, 392 ) );
|
|
californiaPts.push( new THREE.Vector2( 266, 438 ) );
|
|
californiaPts.push( new THREE.Vector2( 190, 570 ) );
|
|
californiaPts.push( new THREE.Vector2( 190, 600 ) );
|
|
californiaPts.push( new THREE.Vector2( 160, 620 ) );
|
|
californiaPts.push( new THREE.Vector2( 160, 650 ) );
|
|
californiaPts.push( new THREE.Vector2( 180, 640 ) );
|
|
californiaPts.push( new THREE.Vector2( 165, 680 ) );
|
|
californiaPts.push( new THREE.Vector2( 150, 670 ) );
|
|
californiaPts.push( new THREE.Vector2( 90, 737 ) );
|
|
californiaPts.push( new THREE.Vector2( 80, 795 ) );
|
|
californiaPts.push( new THREE.Vector2( 50, 835 ) );
|
|
californiaPts.push( new THREE.Vector2( 64, 870 ) );
|
|
californiaPts.push( new THREE.Vector2( 60, 945 ) );
|
|
californiaPts.push( new THREE.Vector2( 300, 945 ) );
|
|
californiaPts.push( new THREE.Vector2( 300, 743 ) );
|
|
californiaPts.push( new THREE.Vector2( 600, 473 ) );
|
|
californiaPts.push( new THREE.Vector2( 626, 425 ) );
|
|
californiaPts.push( new THREE.Vector2( 600, 370 ) );
|
|
californiaPts.push( new THREE.Vector2( 610, 320 ) );
|
|
|
|
for ( let i = 0; i < californiaPts.length; i ++ ) californiaPts[ i ].multiplyScalar( 0.25 );
|
|
|
|
const californiaShape = new THREE.Shape( californiaPts );
|
|
|
|
|
|
// Triangle
|
|
|
|
const triangleShape = new THREE.Shape()
|
|
.moveTo( 80, 20 )
|
|
.lineTo( 40, 80 )
|
|
.lineTo( 120, 80 )
|
|
.lineTo( 80, 20 ); // close path
|
|
|
|
|
|
// Heart
|
|
|
|
const x = 0, y = 0;
|
|
|
|
const heartShape = new THREE.Shape()
|
|
.moveTo( x + 25, y + 25 )
|
|
.bezierCurveTo( x + 25, y + 25, x + 20, y, x, y )
|
|
.bezierCurveTo( x - 30, y, x - 30, y + 35, x - 30, y + 35 )
|
|
.bezierCurveTo( x - 30, y + 55, x - 10, y + 77, x + 25, y + 95 )
|
|
.bezierCurveTo( x + 60, y + 77, x + 80, y + 55, x + 80, y + 35 )
|
|
.bezierCurveTo( x + 80, y + 35, x + 80, y, x + 50, y )
|
|
.bezierCurveTo( x + 35, y, x + 25, y + 25, x + 25, y + 25 );
|
|
|
|
|
|
// Square
|
|
|
|
const sqLength = 80;
|
|
|
|
const squareShape = new THREE.Shape()
|
|
.moveTo( 0, 0 )
|
|
.lineTo( 0, sqLength )
|
|
.lineTo( sqLength, sqLength )
|
|
.lineTo( sqLength, 0 )
|
|
.lineTo( 0, 0 );
|
|
|
|
// Rounded rectangle
|
|
|
|
const roundedRectShape = new THREE.Shape();
|
|
|
|
( function roundedRect( ctx, x, y, width, height, radius ) {
|
|
|
|
ctx.moveTo( x, y + radius );
|
|
ctx.lineTo( x, y + height - radius );
|
|
ctx.quadraticCurveTo( x, y + height, x + radius, y + height );
|
|
ctx.lineTo( x + width - radius, y + height );
|
|
ctx.quadraticCurveTo( x + width, y + height, x + width, y + height - radius );
|
|
ctx.lineTo( x + width, y + radius );
|
|
ctx.quadraticCurveTo( x + width, y, x + width - radius, y );
|
|
ctx.lineTo( x + radius, y );
|
|
ctx.quadraticCurveTo( x, y, x, y + radius );
|
|
|
|
} )( roundedRectShape, 0, 0, 50, 50, 20 );
|
|
|
|
|
|
// Track
|
|
|
|
const trackShape = new THREE.Shape()
|
|
.moveTo( 40, 40 )
|
|
.lineTo( 40, 160 )
|
|
.absarc( 60, 160, 20, Math.PI, 0, true )
|
|
.lineTo( 80, 40 )
|
|
.absarc( 60, 40, 20, 2 * Math.PI, Math.PI, true );
|
|
|
|
|
|
// Circle
|
|
|
|
const circleRadius = 40;
|
|
const circleShape = new THREE.Shape()
|
|
.moveTo( 0, circleRadius )
|
|
.quadraticCurveTo( circleRadius, circleRadius, circleRadius, 0 )
|
|
.quadraticCurveTo( circleRadius, - circleRadius, 0, - circleRadius )
|
|
.quadraticCurveTo( - circleRadius, - circleRadius, - circleRadius, 0 )
|
|
.quadraticCurveTo( - circleRadius, circleRadius, 0, circleRadius );
|
|
|
|
|
|
// Fish
|
|
|
|
const fishShape = new THREE.Shape()
|
|
.moveTo( x, y )
|
|
.quadraticCurveTo( x + 50, y - 80, x + 90, y - 10 )
|
|
.quadraticCurveTo( x + 100, y - 10, x + 115, y - 40 )
|
|
.quadraticCurveTo( x + 115, y, x + 115, y + 40 )
|
|
.quadraticCurveTo( x + 100, y + 10, x + 90, y + 10 )
|
|
.quadraticCurveTo( x + 50, y + 80, x, y );
|
|
|
|
|
|
// Arc circle
|
|
|
|
const arcShape = new THREE.Shape()
|
|
.moveTo( 50, 10 )
|
|
.absarc( 10, 10, 40, 0, Math.PI * 2, false );
|
|
|
|
const holePath = new THREE.Path()
|
|
.moveTo( 20, 10 )
|
|
.absarc( 10, 10, 10, 0, Math.PI * 2, true );
|
|
|
|
arcShape.holes.push( holePath );
|
|
|
|
|
|
// Smiley
|
|
|
|
const smileyShape = new THREE.Shape()
|
|
.moveTo( 80, 40 )
|
|
.absarc( 40, 40, 40, 0, Math.PI * 2, false );
|
|
|
|
const smileyEye1Path = new THREE.Path()
|
|
.moveTo( 35, 20 )
|
|
.absellipse( 25, 20, 10, 10, 0, Math.PI * 2, true );
|
|
|
|
const smileyEye2Path = new THREE.Path()
|
|
.moveTo( 65, 20 )
|
|
.absarc( 55, 20, 10, 0, Math.PI * 2, true );
|
|
|
|
const smileyMouthPath = new THREE.Path()
|
|
.moveTo( 20, 40 )
|
|
.quadraticCurveTo( 40, 60, 60, 40 )
|
|
.bezierCurveTo( 70, 45, 70, 50, 60, 60 )
|
|
.quadraticCurveTo( 40, 80, 20, 60 )
|
|
.quadraticCurveTo( 5, 50, 20, 40 );
|
|
|
|
smileyShape.holes.push( smileyEye1Path );
|
|
smileyShape.holes.push( smileyEye2Path );
|
|
smileyShape.holes.push( smileyMouthPath );
|
|
|
|
|
|
// Spline shape
|
|
|
|
const splinepts = [];
|
|
splinepts.push( new THREE.Vector2( 70, 20 ) );
|
|
splinepts.push( new THREE.Vector2( 80, 90 ) );
|
|
splinepts.push( new THREE.Vector2( - 30, 70 ) );
|
|
splinepts.push( new THREE.Vector2( 0, 0 ) );
|
|
|
|
const splineShape = new THREE.Shape()
|
|
.moveTo( 0, 0 )
|
|
.splineThru( splinepts );
|
|
|
|
const extrudeSettings = { depth: 8, bevelEnabled: true, bevelSegments: 2, steps: 2, bevelSize: 1, bevelThickness: 1 };
|
|
|
|
// addShape( shape, color, x, y, z, rx, ry,rz, s );
|
|
|
|
addShape( californiaShape, extrudeSettings, 0xf08000, - 300, - 100, 0, 0, 0, 0, 1 );
|
|
addShape( triangleShape, extrudeSettings, 0x8080f0, - 180, 0, 0, 0, 0, 0, 1 );
|
|
addShape( roundedRectShape, extrudeSettings, 0x008000, - 150, 150, 0, 0, 0, 0, 1 );
|
|
addShape( trackShape, extrudeSettings, 0x008080, 200, - 100, 0, 0, 0, 0, 1 );
|
|
addShape( squareShape, extrudeSettings, 0x0040f0, 150, 100, 0, 0, 0, 0, 1 );
|
|
addShape( heartShape, extrudeSettings, 0xf00000, 60, 100, 0, 0, 0, Math.PI, 1 );
|
|
addShape( circleShape, extrudeSettings, 0x00f000, 120, 250, 0, 0, 0, 0, 1 );
|
|
addShape( fishShape, extrudeSettings, 0x404040, - 60, 200, 0, 0, 0, 0, 1 );
|
|
addShape( smileyShape, extrudeSettings, 0xf000f0, - 200, 250, 0, 0, 0, Math.PI, 1 );
|
|
addShape( arcShape, extrudeSettings, 0x804000, 150, 0, 0, 0, 0, 0, 1 );
|
|
addShape( splineShape, extrudeSettings, 0x808080, - 50, - 100, 0, 0, 0, 0, 1 );
|
|
|
|
addLineShape( arcShape.holes[ 0 ], 0x804000, 150, 0, 0, 0, 0, 0, 1 );
|
|
|
|
for ( let i = 0; i < smileyShape.holes.length; i += 1 ) {
|
|
|
|
addLineShape( smileyShape.holes[ i ], 0xf000f0, - 200, 250, 0, 0, 0, Math.PI, 1 );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
container.appendChild( renderer.domElement );
|
|
|
|
stats = new Stats();
|
|
container.appendChild( stats.dom );
|
|
|
|
container.style.touchAction = 'none';
|
|
container.addEventListener( 'pointerdown', onPointerDown );
|
|
|
|
//
|
|
|
|
window.addEventListener( 'resize', onWindowResize );
|
|
|
|
}
|
|
|
|
function onWindowResize() {
|
|
|
|
windowHalfX = window.innerWidth / 2;
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function onPointerDown( event ) {
|
|
|
|
if ( event.isPrimary === false ) return;
|
|
|
|
pointerXOnPointerDown = event.clientX - windowHalfX;
|
|
targetRotationOnPointerDown = targetRotation;
|
|
|
|
document.addEventListener( 'pointermove', onPointerMove );
|
|
document.addEventListener( 'pointerup', onPointerUp );
|
|
|
|
}
|
|
|
|
function onPointerMove( event ) {
|
|
|
|
if ( event.isPrimary === false ) return;
|
|
|
|
pointerX = event.clientX - windowHalfX;
|
|
|
|
targetRotation = targetRotationOnPointerDown + ( pointerX - pointerXOnPointerDown ) * 0.02;
|
|
|
|
}
|
|
|
|
function onPointerUp() {
|
|
|
|
if ( event.isPrimary === false ) return;
|
|
|
|
document.removeEventListener( 'pointermove', onPointerMove );
|
|
document.removeEventListener( 'pointerup', onPointerUp );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
function render() {
|
|
|
|
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|
|
|