标签：
<!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>
标签：
原文地址：http://www.cnblogs.com/ForRickHuan/p/5734334.html
