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html 3d圖片代碼

HTML 3D 圖片是一種新型的圖片處理方式,它可以讓圖片在網(wǎng)頁(yè)上呈現(xiàn)出三維效果,增強(qiáng)用戶的視覺體驗(yàn)。這種技術(shù)采用了HTML5的canvas標(biāo)簽和JavaScript的three.js庫(kù)。 要實(shí)現(xiàn)3D圖片,需要先導(dǎo)入three.js庫(kù),并將canvas元素添加到HTML頁(yè)面上:
<script src="js/three.min.js"></script>  
<canvas id="canvas"></canvas>
接下來,需要設(shè)置3D視圖,即通過設(shè)置場(chǎng)景、相機(jī)、光源等元素來創(chuàng)建3D場(chǎng)景:
var scene = new THREE.Scene();  
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);  
var renderer = new THREE.WebGLRenderer({canvas: document.getElementById("canvas")});  
renderer.setSize(window.innerWidth, window.innerHeight);  
var ambientLight = new THREE.AmbientLight(0x404040);  
var directionalLight = new THREE.DirectionalLight(0xffffff, 0.5);  
directionalLight.position.set(0, 1, 0);  
scene.add(ambientLight);  
scene.add(directionalLight);
在場(chǎng)景中添加對(duì)象是創(chuàng)建3D圖像的核心。這里我們創(chuàng)建一個(gè)立方體,并設(shè)置其顏色和位置:
var cubeGeometry = new THREE.BoxGeometry(1, 1, 1);  
var cubeMaterial = new THREE.MeshLambertMaterial({color: 0xff0000});  
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);  
cube.position.y = 1;  
scene.add(cube);
最后,渲染3D場(chǎng)景即可呈現(xiàn)出3D圖片:
function render() {  
requestAnimationFrame(render);  
cube.rotation.x += 0.01;  
cube.rotation.y += 0.01;  
renderer.render(scene, camera);  
}  
render();
以上是一個(gè)簡(jiǎn)單的示例,有了基礎(chǔ)的了解之后,就可以嘗試制作更加復(fù)雜的3D圖片了。