我正在尝试通过单击按钮来启用\禁用三个.js 场景中的对象。我在按钮的 Onclick() 中创建了一个函数来渲染对象并且它可以工作。但是如何重置场景并禁用对象？
<!DOCTYPE html>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<!-- three.js library -->
<script src="js/three.js"></script>
<!-- ar.js -->
<script src="js/ar.js"></script>
<script src="loaders/OBJLoader.js"></script>
<script src="loaders/MTLLoader.js"></script>
<script src="loaders/DDSLoader.js"></script>
<script>THREEx.ArToolkitContext.baseURL = '../'</script>
<body style='margin : 0px; overflow: hidden; font-family: Monospace;'><div style='position: absolute; top: 10px; width:100%; text-align: center; z-index: 1;'>
</div><script>
//////////////////////////////////////////////////////////////////////////////////
// Init
//////////////////////////////////////////////////////////////////////////////////
// init renderer
var renderer = new THREE.WebGLRenderer({
antialias: true,
alpha: true
});
renderer.setClearColor(new THREE.Color('lightgrey'), 0)
renderer.setSize( 640, 480 );
renderer.domElement.style.position = 'absolute'
renderer.domElement.style.top = '0px'
renderer.domElement.style.left = '0px'
document.body.appendChild( renderer.domElement );
// array of functions for the rendering loop
var onRenderFcts= [];
// init scene and camera
var scene = new THREE.Scene();
scene = new THREE.Scene();
var ambientLight = new THREE.AmbientLight( 0xcccccc, 0.5 );
scene.add( ambientLight );
var pointLight = new THREE.PointLight( 0xffffff, 0.6 );
//////////////////////////////////////////////////////////////////////////////////
// Initialize a basic camera
//////////////////////////////////////////////////////////////////////////////////
// Create a camera
var camera = new THREE.Camera();
camera.add( pointLight );
scene.add(camera);
////////////////////////////////////////////////////////////////////////////////
// handle arToolkitSource
////////////////////////////////////////////////////////////////////////////////
var arToolkitSource = new THREEx.ArToolkitSource({
// to read from the webcam
// sourceType : 'webcam',
// // to read from an image
sourceType : 'image',
sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/images/prova.jpg',
// to read from a video
// sourceType : 'video',
// sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/videos/headtracking.mp4',
})
arToolkitSource.init(function onReady(){
onResize()
})
// handle resize
window.addEventListener('resize', function(){
onResize()
})
function onResize(){
arToolkitSource.onResize()
arToolkitSource.copySizeTo(renderer.domElement)
if( arToolkitContext.arController !== null ){
arToolkitSource.copySizeTo(arToolkitContext.arController.canvas)
}
}
////////////////////////////////////////////////////////////////////////////////
// initialize arToolkitContext
////////////////////////////////////////////////////////////////////////////////
// create atToolkitContext
var arToolkitContext = new THREEx.ArToolkitContext({
cameraParametersUrl: THREEx.ArToolkitContext.baseURL + '../data/data/camera_para.dat',
detectionMode: 'mono',
})
// initialize it
arToolkitContext.init(function onCompleted(){
// copy projection matrix to camera
camera.projectionMatrix.copy( arToolkitContext.getProjectionMatrix() );
})
// update artoolkit on every frame
onRenderFcts.push(function(){
if( arToolkitSource.ready === false ) return
arToolkitContext.update( arToolkitSource.domElement )
// update scene.visible if the marker is seen
scene.visible = camera.visible
})
////////////////////////////////////////////////////////////////////////////////
// Create a ArMarkerControls
////////////////////////////////////////////////////////////////////////////////
// init controls for camera
var markerControls = new THREEx.ArMarkerControls(arToolkitContext, camera, {
type : 'pattern',
patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.hiro',
// patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.kanji',
// as we controls the camera, set changeMatrixMode: 'cameraTransformMatrix'
changeMatrixMode: 'cameraTransformMatrix'
})
// as we do changeMatrixMode: 'cameraTransformMatrix', start with invisible scene
scene.visible = false
//////////////////////////////////////////////////////////////////////////////////
// add an object in the scene
//////////////////////////////////////////////////////////////////////////////////
var onProgress = function ( xhr ) {
if ( xhr.lengthComputable ) {
var percentComplete = xhr.loaded / xhr.total * 100;
console.log( Math.round( percentComplete, 2 ) + '% downloaded' );
}
};
var onError = function ( xhr ) { };
THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
var mtlLoader = new THREE.MTLLoader();
mtlLoader.setPath( 'obj/' );
mtlLoader.load( 'futurama.mtl', function( materials ) {
materials.preload();
var objLoader = new THREE.OBJLoader();
objLoader.setMaterials( materials );
objLoader.setPath( 'obj/' );
objLoader.load( 'futurama.obj', function ( object ) {
scene.add( object );
}, onProgress );
});
//////////////////////////////////////////////////////////////////////////////////
// render the whole thing on the page
//////////////////////////////////////////////////////////////////////////////////
// render the scene
onRenderFcts.push(function(){
renderer.render( scene, camera );
})
// run the rendering loop
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec - lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
onRenderFcts.forEach(function(onRenderFct){
onRenderFct(deltaMsec/1000, nowMsec/1000)
})
})
</script></body>
我正在尝试启用和禁用 futurama.obj，我想用一个按钮来完成，我可以将渲染放入一个函数中，当我点击按钮时调用它，但我不知道如何删除它.