mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-10 21:45:57 +10:00
alteredq
f1559f0186
Changed default extrusion stepping to 1 segment, smaller default tessellation is usually preferable (for flat surfaces).
350 lines
11 KiB
HTML
350 lines
11 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js canvas - geometry - shapes</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
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<style type="text/css">
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<canvas id="debug" style="position:absolute; left:100px"></canvas>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<script type="text/javascript">
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var container, stats;
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var camera, scene, renderer;
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var text, plane;
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var targetRotation = 0;
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var targetRotationOnMouseDown = 0;
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var mouseX = 0;
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var mouseXOnMouseDown = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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var info = document.createElement( 'div' );
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info.style.position = 'absolute';
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info.style.top = '10px';
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info.style.width = '100%';
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info.style.textAlign = 'center';
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info.innerHTML = 'Simple procedurally generated 3D shapes example by <a href="http://www.lab4games.net/zz85/blog">zz85</a><br/>Drag to spin';
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container.appendChild( info );
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camera = new THREE.Camera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.y = 150;
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camera.position.z = 500;
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camera.target.position.y = 150;
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scene = new THREE.Scene();
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parent = new THREE.Object3D();
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parent.position.y = 50;
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scene.addChild( parent );
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function addGeometry( geometry, color, x, y, z, rx, ry, rz, s ) {
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var mesh = new THREE.Mesh( geometry, [ new THREE.MeshBasicMaterial( { color: color } ), new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true } ) ] );
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mesh.position.set( x, y, z );
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mesh.rotation.set( rx, ry, rz );
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mesh.scale.set( s, s, s );
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parent.addChild( mesh );
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}
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var extrudeSettings = { amount: 20 };
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// California
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var californiaPts = [];
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californiaPts.push( new THREE.Vector2 ( 610, 320 ) );
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californiaPts.push( new THREE.Vector2 ( 450, 300 ) );
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californiaPts.push( new THREE.Vector2 ( 392, 392 ) );
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californiaPts.push( new THREE.Vector2 ( 266, 438 ) );
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californiaPts.push( new THREE.Vector2 ( 190, 570 ) );
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californiaPts.push( new THREE.Vector2 ( 190, 600 ) );
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californiaPts.push( new THREE.Vector2 ( 160, 620 ) );
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californiaPts.push( new THREE.Vector2 ( 160, 650 ) );
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californiaPts.push( new THREE.Vector2 ( 180, 640 ) );
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californiaPts.push( new THREE.Vector2 ( 165, 680 ) );
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californiaPts.push( new THREE.Vector2 ( 150, 670 ) );
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californiaPts.push( new THREE.Vector2 ( 90, 737 ) );
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californiaPts.push( new THREE.Vector2 ( 80, 795 ) );
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californiaPts.push( new THREE.Vector2 ( 50, 835 ) );
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californiaPts.push( new THREE.Vector2 ( 64, 870 ) );
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californiaPts.push( new THREE.Vector2 ( 60, 945 ) );
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californiaPts.push( new THREE.Vector2 ( 300, 945 ) );
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californiaPts.push( new THREE.Vector2 ( 300, 743 ) );
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californiaPts.push( new THREE.Vector2 ( 600, 473 ) );
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californiaPts.push( new THREE.Vector2 ( 626, 425 ) );
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californiaPts.push( new THREE.Vector2 ( 600, 370 ) );
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californiaPts.push( new THREE.Vector2 ( 610, 320 ) );
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var californiaShape = new THREE.Shape( californiaPts );
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var california3d = new THREE.ExtrudeGeometry( californiaShape, { amount: 20 } );
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// Triangle
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var triangleShape = new THREE.Shape();
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triangleShape.moveTo( 80, 20 );
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triangleShape.lineTo( 40, 80 );
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triangleShape.lineTo( 120, 80 );
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triangleShape.lineTo( 80, 20 ); // close path
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var triangle3d = triangleShape.extrude( extrudeSettings );
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// Heart
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var x = 0, y = 0;
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var heartShape = new THREE.Shape(); // From http://blog.burlock.org/html5/130-paths
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heartShape.moveTo( x + 25, y + 25 );
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heartShape.bezierCurveTo( x + 25, y + 25, x + 20, y, x, y );
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heartShape.bezierCurveTo( x - 30, y, x - 30, y + 35,x - 30,y + 35 );
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heartShape.bezierCurveTo( x - 30, y + 55, x - 10, y + 77, x + 25, y + 95 );
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heartShape.bezierCurveTo( x + 60, y + 77, x + 80, y + 55, x + 80, y + 35 );
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heartShape.bezierCurveTo( x + 80, y + 35, x + 80, y, x + 50, y );
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heartShape.bezierCurveTo( x + 35, y, x + 25, y + 25, x + 25, y + 25 );
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var heart3d = heartShape.extrude( extrudeSettings );
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//heartShape.debug( document.getElementById("debug") );
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// Square
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var sqLength = 80;
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var squareShape = new THREE.Shape();
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squareShape.moveTo( 0,0 );
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squareShape.lineTo( 0, sqLength );
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squareShape.lineTo( sqLength, sqLength );
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squareShape.lineTo( sqLength, 0 );
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squareShape.lineTo( 0, 0 );
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var square3d = squareShape.extrude( extrudeSettings );
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// Rectangle
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var rectLength = 120, rectWidth = 40;
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var rectShape = new THREE.Shape();
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rectShape.moveTo( 0,0 );
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rectShape.lineTo( 0, rectWidth );
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rectShape.lineTo( rectLength, rectWidth );
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rectShape.lineTo( rectLength, 0 );
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rectShape.lineTo( 0, 0 );
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var rect3d = rectShape.extrude( extrudeSettings );
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// Rounded rectangle
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var roundedRectShape = new THREE.Shape();
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roundedRect( roundedRectShape, 0, 0, 50, 50, 20 );
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var roundedRect3d = roundedRectShape.extrude( extrudeSettings );
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function roundedRect( ctx, x, y, width, height, radius ){
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ctx.moveTo( x, y + radius );
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ctx.lineTo( x, y + height - radius );
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ctx.quadraticCurveTo( x, y + height, x + radius, y + height );
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ctx.lineTo( x + width - radius, y + height) ;
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ctx.quadraticCurveTo( x + width, y + height, x + width, y + height - radius );
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ctx.lineTo( x + width, y + radius );
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ctx.quadraticCurveTo( x + width, y, x + width - radius, y );
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ctx.lineTo( x + radius, y );
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ctx.quadraticCurveTo( x, y, x, y + radius );
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}
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// Circle
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var circleRadius = 40;
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var circleShape = new THREE.Shape();
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circleShape.moveTo( 0, circleRadius );
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circleShape.quadraticCurveTo( circleRadius, circleRadius, circleRadius, 0 );
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circleShape.quadraticCurveTo( circleRadius, -circleRadius, 0, -circleRadius );
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circleShape.quadraticCurveTo( -circleRadius, -circleRadius, -circleRadius, 0 );
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circleShape.quadraticCurveTo( -circleRadius, circleRadius, 0, circleRadius );
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var circle3d = circleShape.extrude( extrudeSettings );
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// Fish
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x = y = 0;
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var fishShape = new THREE.Shape();
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fishShape.moveTo( x, y );
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fishShape.quadraticCurveTo( x + 50, y + 80, x + 90, y + 10 );
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fishShape.quadraticCurveTo( x + 100, y + 10, x + 115, y + 40 );
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fishShape.quadraticCurveTo( x + 100, y, x + 115, y - 40 );
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fishShape.quadraticCurveTo( x + 100, y + 10, x + 90, y - 10 );
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fishShape.quadraticCurveTo( x + 50, y - 80, x, y );
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var fish3d = fishShape.extrude( extrudeSettings );
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// Spline shape + Path Extrusion
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var splinepts = [];
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splinepts.push( new THREE.Vector2 ( 350, 100 ) );
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splinepts.push( new THREE.Vector2 ( 400, 450 ) );
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splinepts.push( new THREE.Vector2 ( -140, 350 ) );
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splinepts.push( new THREE.Vector2 ( 0, 0 ) );
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var splineShape = new THREE.Shape( );
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splineShape.moveTo( 0, 0 );
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splineShape.splineThru( splinepts );
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//splineShape.debug( document.getElementById("debug") );
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var extrudePath = new THREE.Path();
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extrudePath.lineTo( 10, 10 );
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extrudePath.quadraticCurveTo( 80, 60, 160, 10 );
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extrudePath.quadraticCurveTo( 240, -40, 320, 10 );
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extrudeSettings.path = extrudePath;
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var splineShape3d = splineShape.extrude( extrudeSettings );
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addGeometry( california3d, 0xffaa00, -300, -100, 0, 0, 0, 0, 0.25 );
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addGeometry( triangle3d, 0xffee00, -180, 0, 0, 0, 0, 0, 1 );
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addGeometry( roundedRect3d, 0x005500, -150, 150, 0, 0, 0, 0, 1 );
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addGeometry( square3d, 0x0055ff, 150, 100, 0, 0, 0, 0, 1 );
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addGeometry( heart3d, 0xff1100, 0, 100, 0, 3.14, 0, 0, 1 );
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addGeometry( circle3d, 0x00ff11, 150, 0, 0, 0, 0, 0, 1 );
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addGeometry( fish3d, 0x222222, -50, 200, 0, 0, 0, 0, 1 );
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addGeometry( splineShape3d, 0x888888, -50, -100, -50, 0, 0, 0, 0.2 );
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renderer = new THREE.CanvasRenderer();
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild( stats.domElement );
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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}
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//
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mouseout', onDocumentMouseOut, false );
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mouseXOnMouseDown = event.clientX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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function onDocumentMouseMove( event ) {
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mouseX = event.clientX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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}
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function onDocumentMouseUp( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentMouseOut( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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}
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function onDocumentTouchMove( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
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}
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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