mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-23 19:43:48 +01:00
188 lines
4.2 KiB
HTML
Executable File
188 lines
4.2 KiB
HTML
Executable File
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js canvas - interactive particles</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
|
|
<style>
|
|
body {
|
|
font-family: Monospace;
|
|
background-color: #f0f0f0;
|
|
margin: 0px;
|
|
overflow: hidden;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
|
|
<script src="../build/three.min.js"></script>
|
|
|
|
<script src="js/renderers/Projector.js"></script>
|
|
<script src="js/renderers/CanvasRenderer.js"></script>
|
|
|
|
<script src="js/libs/stats.min.js"></script>
|
|
|
|
<script>
|
|
|
|
var container, stats;
|
|
var camera, scene, renderer;
|
|
|
|
var raycaster;
|
|
var mouse;
|
|
|
|
var PI2 = Math.PI * 2;
|
|
|
|
var programFill = function ( context ) {
|
|
|
|
context.beginPath();
|
|
context.arc( 0, 0, 0.5, 0, PI2, true );
|
|
context.fill();
|
|
|
|
}
|
|
|
|
var programStroke = function ( context ) {
|
|
|
|
context.lineWidth = 0.025;
|
|
context.beginPath();
|
|
context.arc( 0, 0, 0.5, 0, PI2, true );
|
|
context.stroke();
|
|
|
|
}
|
|
|
|
var INTERSECTED;
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
var info = document.createElement( 'div' );
|
|
info.style.position = 'absolute';
|
|
info.style.top = '10px';
|
|
info.style.width = '100%';
|
|
info.style.textAlign = 'center';
|
|
info.innerHTML = '<a href="http://threejs.org" target="_blank">three.js</a> canvas - interactive particles';
|
|
container.appendChild( info );
|
|
|
|
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 10000 );
|
|
camera.position.set( 0, 300, 500 );
|
|
|
|
scene = new THREE.Scene();
|
|
|
|
for ( var i = 0; i < 100; i ++ ) {
|
|
|
|
var particle = new THREE.Sprite( new THREE.SpriteCanvasMaterial( { color: Math.random() * 0x808080 + 0x808080, program: programStroke } ) );
|
|
particle.position.x = Math.random() * 800 - 400;
|
|
particle.position.y = Math.random() * 800 - 400;
|
|
particle.position.z = Math.random() * 800 - 400;
|
|
particle.scale.x = particle.scale.y = Math.random() * 20 + 20;
|
|
scene.add( particle );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
raycaster = new THREE.Raycaster();
|
|
mouse = new THREE.Vector2();
|
|
|
|
renderer = new THREE.CanvasRenderer();
|
|
renderer.setClearColor( 0xf0f0f0 );
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
container.appendChild( renderer.domElement );
|
|
|
|
stats = new Stats();
|
|
stats.domElement.style.position = 'absolute';
|
|
stats.domElement.style.top = '0px';
|
|
container.appendChild( stats.domElement );
|
|
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
|
|
//
|
|
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
|
|
|
}
|
|
|
|
function onWindowResize() {
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
}
|
|
|
|
function onDocumentMouseMove( event ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
|
|
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
var radius = 600;
|
|
var theta = 0;
|
|
|
|
function render() {
|
|
|
|
// rotate camera
|
|
|
|
theta += 0.1;
|
|
|
|
camera.position.x = radius * Math.sin( THREE.Math.degToRad( theta ) );
|
|
camera.position.y = radius * Math.sin( THREE.Math.degToRad( theta ) );
|
|
camera.position.z = radius * Math.cos( THREE.Math.degToRad( theta ) );
|
|
camera.lookAt( scene.position );
|
|
|
|
camera.updateMatrixWorld();
|
|
|
|
// find intersections
|
|
|
|
raycaster.setFromCamera( mouse, camera );
|
|
|
|
var intersects = raycaster.intersectObjects( scene.children );
|
|
|
|
if ( intersects.length > 0 ) {
|
|
|
|
if ( INTERSECTED != intersects[ 0 ].object ) {
|
|
|
|
if ( INTERSECTED ) INTERSECTED.material.program = programStroke;
|
|
|
|
INTERSECTED = intersects[ 0 ].object;
|
|
INTERSECTED.material.program = programFill;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if ( INTERSECTED ) INTERSECTED.material.program = programStroke;
|
|
|
|
INTERSECTED = null;
|
|
|
|
}
|
|
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|