three打造日出草坪小草摆动三维效果-html代码-BFW代码库

代码语言：html

所属分类：三维

代码描述：three打造日出草坪小草摆动三维效果，可以360拖动

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">

    <style>
        body {
            background-color: #fff;
            margin: 0;
            overflow: hidden;
        }
        .label {
            position: absolute;
            top: 0;
            left: 0;
            padding: 5px 15px;
            color: #fff;
            font-size: 13px;
            background-color: rgba(0, 0, 0, .15);
        }
        .instructions {
            position: absolute;
            bottom: 0%;
            left: 0;
            padding: 5px 15px;
            color: #fff;
            font-size: 13px;
            background-color: rgba(0, 0, 0, .15);
        }
        canvas {
            display: block;
        }
    </style>

</head>
<body translate="no">

    <canvas id="canvas"></canvas>


    <div class="label">
       Logo
    </div>
    <div class="instructions">
        WASD/ARROW KEYS TO MOVE, MOUSE TO LOOK
    </div>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.109.js"></script>
    <script src="//repo.bfw.wiki/bfwrepo/js/OrbitControls.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/Stats-16.js"></script>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/dat.gui-min.js"></script>

    <script>
      

        var canvas = document.getElementById("canvas");

        const mobile = (navigator.userAgent.match(/Android/i) || navigator.userAgent.match(/webOS/i) || navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/BlackBerry/i) || navigator.userAgent.match(/Windows Phone/i)
        );

        //Variables for blade mesh
        var joints = 4;
        var bladeWidth = 0.12;
        var bladeHeight = 1;

        //Patch side length
        var width = 120;
        //Number of vertices on ground plane side
        var resolution = 32;
        //Distance between two ground plane vertices
        var delta = width/resolution;
        //Radius of the sphere onto which the ground plane is bended
        var radius = 120;
        //User movement speed
        var speed = 1.5;

        //The global coordinates
        //The geometry never leaves a box of width*width around (0, 0)
        //But we track where in space the camera would be globally
        var pos = new THREE.Vector2(0, 0);

        //Number of blades
        var instances = 40000;
        if (mobile) {
            instances = 7000;
            width = 50;
        }

        //Sun
        //Height over horizon in range [0, PI/2.0]
        var elevation = 0.3;
        //Rotation around Y axis in range [0, 2*PI]
        var azimuth = 2.0;

        //Lighting variables for grass
        var ambientStrength = 0.6;
        var translucencyStrength = 1.4;
        var specularStrength = 0.5;
        var diffuseStrength = 2.2;
        var shininess = 256;
        var sunColour = new THREE.Vector3(1.0, 1.0, 1.0);
        var specularColour = new THREE.Vector3(1.0, 1.0, 1.0);

        //Camera rotate
        var rotate = false;

        //Initialise three.js. There are two scenes which are drawn after one another with clear() called manually at the start of each frame
        //Grass scene
        var scene = new THREE.Scene();
        //Sky scene
        var backgroundScene = new THREE.Scene();

        var renderer = new THREE.WebGLRenderer({
            antialias: true, canvas: canvas
        });
        renderer.outputEncoding = THREE.sRGBEncoding;
        renderer.setPixelRatio(window.devicePixelRatio);
        renderer.setSize(window.innerWidth, window.innerHeight);

        //Camera
        const FOV = 45;
        var camera = new THREE.PerspectiveCamera(FOV, window.innerWidth / window.innerHeight, 1, 20000);

        camera.position.set(-70, 0, -50);
        camera.lookAt(new THREE.Vector3(0, 0, 0));

        scene.add(camera);
        backgroundScene.add(camera);

        //Light for ground plane
        var ambientLight = new THREE.AmbientLight(0xffffff, 0.5);
        scene.add(ambientLight);

        //OrbitControls.js for camera manipulation
        controls = new THREE.OrbitControls(camera, renderer.domElement);
        controls.autoRotate = rotate;
        controls.autoRotateSpeed = 1.0;
        controls.maxDistance = 65.0;
        if (mobile) {
            controls.maxDistance = 25.0;
        }
        controls.minDistance = 5.0;
        //Disable keys to stop arrow keys from moving the camera
        controls.enableKeys = false;
        controls.update();

        const stats = new Stats();
        stats.showPanel(0);
        stats.domElement.style.position = 'absolute';
        stats.domElement.style.right = '0px';
        stats.domElement.style.bottom = '0px';
        document.body.appendChild(stats.domElement);

        //************* GUI ***************
        var gui = new dat.GUI();
        gui.add(this, 'radius').min(85).max(1000).step(5);
        gui.add(this, 'speed').min(0.5).max(10).step(0.01);
        gui.add(this, 'elevation').min(0.0).max(Math.PI/2.0).step(0.01).listen().onChange(function(value) {
            updateSunPosition();
        });
        gui.add(this, '.........完整代码请登录后点击上方下载按钮下载查看