[英]How to change the background by buttons on three.js?
我是three.js的新手,并且使用以下代码,我想知道如何通过单击按钮来更改背景。 因此,我认为与使用“ switch”和“ break”有所不同。 这是带有.loadTexture的东西,对吗?
<html lang="en">
<head>
<title>gyroscopic</title>
<meta charset="utf-8">
<meta name="viewport" content="user-scalable=no, initial-scale=1">
<style>
body {
margin: 0px;
background-color: #000000;
overflow: hidden;
}
</style>
</head>
<body>
<div id="container"></div>
<script src="three.min.js"></script>
<script src="DeviceOrientationControls.js"></script>
<script>
(function() {
"use strict"
window.addEventListener('load', function() {
var container, camera, scene, renderer, controls, geometry, mesh;
var animate = function(){
window.requestAnimationFrame( animate );
controls.update();
renderer.render(scene, camera);
};
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera(80, window.innerWidth / window.innerHeight, 1, 1100);
controls = new THREE.DeviceOrientationControls( camera );
scene = new THREE.Scene();
var geometry = new THREE.SphereGeometry( 500, 316, 18 );
geometry.applyMatrix( new THREE.Matrix4().makeScale( -1, 1, 1 ) );
var material = new THREE.MeshBasicMaterial( {
map: THREE.ImageUtils.loadTexture( 'pic.jpg' )
} );
var mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
var geometry = new THREE.BoxGeometry( 100, 100, 100, 4, 4, 4 );
var mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.domElement.style.position = 'absolute';
renderer.domElement.style.top = 0;
container.appendChild(renderer.domElement);
window.addEventListener('resize', function() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}, false);
animate();
}, false);
})();
</script>
</body>
</html>
您应该能够在按钮单击侦听器上使用.loadTexture更改纹理。
因此,您可能会在HTML中添加以下内容:
<button id="change-background">Change Background</button>
然后在Javascript中:
var backgroundButton = document.getElementById('change-background');
backgroundButton.addEventListener('click', function(){
material.map = THREE.ImageUtils.loadTexture('//new image path//');
});
显然,您需要用//new image path//
具有的任何URL替换//new image path//
。
唯一的问题是这是否也会更新网格物体上的材质。 我敢肯定,但目前尚无测试方法。
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