three+gsap实现三维圆点构成的地球旋转动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：三维

代码描述：three+gsap实现三维圆点构成的地球旋转动画效果代码，单击增加圆点及旋转坐标。

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 {
  padding: 0;
  margin: 0;
}
.title {
        position: fixed;
        top: 7px;
        color: #ddd;
        font-family: sans-serif;
        width: 100%;
        text-align: center;
        opacity: 0;
}
.demo {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #1C1C1E;
}
#globe-3d, #globe-2d-overlay, #globe-popup-overlay, .globe-popup {
  display: block;
  position: absolute;
}
#globe-2d-overlay, #globe-popup-overlay {
  pointer-events: none;
}
.globe-popup-overlay {
  width: 100%;
  height: 100%;
  opacity: 0;
}
.globe-popup {
  top: 0;
  left: 0;
  background-color: rgba(75, 192, 200, .9);
  opacity: 0;
  color: #111;
  font-family: sans-serif;
  font-weight: bold;
  padding: 5px 10px;
  font-size: 15px;
  border-radius: 3px;
}
</style>

</head>
<body>
<!-- partial:index.partial.html -->
<div class="title">单击地球增加点</div>
<div class="demo">
    <div class="animation-wrapper">
        <canvas id="globe-3d"></canvas>
        <canvas id="globe-2d-overlay"></canvas>
        <div id="globe-popup-overlay">
            <div class="globe-popup"></div>
        </div>
    </div>
</div>


<script type="x-shader/x-fragment" id="fragment-shader-map">
    uniform vec3 u_color_main;

    varying float vOpacity;

    float circle(vec2 st, float r) {
        vec2 dist = st - vec2(.5);
        return 1. - smoothstep(.99 * r, 1.01 * r, dot(dist, dist) * 4.);
    }

    void main() {
        float dot = circle(gl_PointCoord.xy, .7);
        if (dot < 0.5) discard;
        gl_FragColor = vec4(u_color_main, dot * vOpacity);
    }
</script>

<script type="x-shader/x-vertex" id="vertex-shader-map">
    uniform sampler2D u_visibility;
    uniform float u_size;
    uniform float u_time_since_click;
    uniform vec3 u_clicked;

    varying float vOpacity;

    void main() {

        // mask with world map
        float visibility = 1. - step(.4, texture2D(u_visibility, uv).x);
        gl_PointSize = visibility * u_size;

        // add ripple
        float time = u_time_since_click;
        float dist = length(position - u_clicked);
        float damping = pow(1. - sin(min(time, 1.)), 5.);
        float wave = (1. + sin(3. * dist + 13. * time));
        float delta = -.025 * damping * wave;

        // make backside dots darker
        vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
        vOpacity = (1. / length(mvPosition.xyz) - .7);
        vOpacity = clamp(vOpacity, 0., .5) + .01;

        gl_Position = projectionMatrix * modelViewMatrix * vec4(position * (1. + delta), 1.);
    }
</script>
<!-- partial -->
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/gsap.3.10.1.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.126.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/OrbitControls.126.js"></script>
<script>


const demo = document.querySelector('.demo');
const container = document.querySelector('.animation-wrapper');
const globeCanvas = container.querySelector('#globe-3d');
const globeOverlayCanvas = container.querySelector('#globe-2d-overlay');
const popup = container.querySelector('.globe-popup');


document.addEventListener('DOMContentLoaded', () => {
    gsap.set(demo, {
        height: window.innerHeight
    });

    let surface = new Surface();

    new THREE.TextureLoader().load(
        '//repo.bfw.wiki/bfwrepo/image/6098ff67cddfe.png',
        (mapTex) => {
            surface.earthTexture = mapTex;
            surface.earthTexture.repeat.set(1, 1);
            surface.earthTextureData = surface.getImageData();
            surface.createGlobe();
            surface.addAnchor();
            surface.addCanvasEvents();
            surface.updateDotSize();
            surface.loop();
        });

    window.addEventListener('resize', () => {
        gsap.set(demo, {
            height: window.innerHeight
        });

        surface.updateSize();
        surface.setupOverlayGraphic();
        surface.updateDotSize();
        surface.addCanvasEvents();
    }, false);
        
         gsap.to('.title', {
                 delay: 5,
                 duration: .2,
                 opacity: 1
         })

});


class Surface {

    constructor() {
        this.renderer = new THREE.WebGLRenderer({canvas: globeCanvas, alpha: true});
        this.scene = new THREE.Scene();
        this.camera = new THREE.OrthographicCamera(-1, 1, 1, -1, .1, 2);
        this.camera.position.z = 1.1;
        this.updateSize();

        this.rayCaster = new THREE.Raycaster();
        this.rayCaster.far = 1.15;
        this.mouse = new THREE.Vector2();
        this.coordinates2D = [0, 0];

        this.setupOverlayGraphic();
        this.createOrbitCon.........完整代码请登录后点击上方下载按钮下载查看