<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js canvas - geometry - cube</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.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 cube, plane;
var fy=0.0;
var fx=0.0;
var zoom=20;
var targetRotation = 0;
var targetUp = 0;
var targetRotationOnMouseDown = 0;
var targetUpOnMouseDown = 0;
var mouseX = 0;
var mouseY=0;
var mouseXOnMouseDown = 0;
var mouseYOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
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 = ‘Drag to spin the cube‘;
container.appendChild( info );
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 10000 );
camera.maxDistance=7500;
camera.position.y = 150;
camera.position.z = 500;
scene = new THREE.Scene();
// Cube
var geometry = new THREE.CubeGeometry(200, 200,200, 2, 2, 3 );
// for ( var i = 0; i < geometry.faces.length; i += 2 ) {
//
// var hex = Math.random() * 0xffffff;
// geometry.faces[ i ].color.setHex( hex );
// geometry.faces[ i + 1 ].color.setHex( hex );
//
// }
//var material = new THREE.MeshBasicMaterial( { vertexColors: THREE.FaceColors, overdraw: 0.5 } );
var material = new THREE.MeshBasicMaterial({
color: 0xff0000,
wireframe: true
});
cube = new THREE.Mesh( geometry, material );
cube.position.y = 150;
scene.add( cube );
// Plane
var geometry = new THREE.PlaneBufferGeometry( 200, 200 );
geometry.rotateX( - Math.PI / 2 );
var material = new THREE.MeshBasicMaterial( { color: 0xe0e0e0, overdraw: 0.5 } );
plane = new THREE.Mesh( geometry, material );
scene.add( plane );
renderer = new THREE.CanvasRenderer();
renderer.setClearColor( 0xf0f0f0 );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
container.appendChild( stats.dom );
document.addEventListener( ‘mousedown‘, onDocumentMouseDown, false );
document.addEventListener( ‘touchstart‘, onDocumentTouchStart, false );
document.addEventListener( ‘touchmove‘, onDocumentTouchMove, false );
document.addEventListener(‘keydown‘,onDocumentKeyDown,false);
document.addEventListener( ‘mousewheel‘, onMouseWheel, false);
window.addEventListener( ‘resize‘, onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( ‘mousemove‘, onDocumentMouseMove, false );
document.addEventListener( ‘mouseup‘, onDocumentMouseUp, false );
document.addEventListener( ‘mouseout‘, onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
mouseYOnMouseDown = event.clientY - windowHalfY;
targetRotationOnMouseDown = targetRotation;
targetUpOnMouseDown = targetUp;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
targetUp = targetUpOnMouseDown + (mouseY - mouseYOnMouseDown)*0.02;
}
function onDocumentMouseUp( event ) {
document.removeEventListener( ‘mousemove‘, onDocumentMouseMove, false );
document.removeEventListener( ‘mouseup‘, onDocumentMouseUp, false );
document.removeEventListener( ‘mouseout‘, onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
document.removeEventListener( ‘mousemove‘, onDocumentMouseMove, false );
document.removeEventListener( ‘mouseup‘, onDocumentMouseUp, false );
document.removeEventListener( ‘mouseout‘, onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
mouseYOnMouseDown = event.touches[ 0 ].pageY - windowHalfY;
targetRotationOnMouseDown = targetRotation;
targetUpOnMouseDown = targetup;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
mouseY = event.touches[ 0 ].pageY - windowHalfY;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
targetup = targetUpOnMouseDown + ( mouseY - mouseYOnMouseDown)*0.05;
}
}
function onMouseWheel(event){
if(event.wheelDelta > 0){ //前滚
cube.position.z-=zoom;
plane.position.z-=zoom;
}else
{
cube.position.z+=zoom;
plane.position.z+=zoom;
}
}
function onDocumentKeyDown(event){
switch(event.keyCode){
case 37: //左
fy -= 0.1;
break;
case 39: //右
fy += 0.1;
break;
case 38: //上
//fx -= 0.1;
cube.position.z-=10;
break;
case 40: //下
//fx += 0.1;
cube.position.z+=10;
break;
default:
break;
}
}
//
function animate() {
requestAnimationFrame( animate );
stats.begin();
render();
stats.end();
}
function render() {
cube.rotation.x +=( targetUp - cube.rotation.x ) * 0.05; //鼠标控制上下旋转
cube.rotation.y += ( targetRotation - cube.rotation.y ) * 0.05;
//cube.rotation.x+=0.1;
//cube.rotation.y+=fy;
// cube.rotation.x+=fx;
plane.rotation.y = cube.rotation.y;
renderer.render( scene, camera );
}
</script>
ript>
</body>
</html>
时间： 2024-10-09 22:33:44