炫酷的宇宙空间

Space globe - Three.js

<div id="canvas_container">div>


1
2
3

body {
    margin: 0;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    background-image: url("https://user-images.githubusercontent.com/26748614/96337246-f14d4580-1085-11eb-8793-a86d929e034d.jpg");
    background-size: cover;
    backdrop-filter:  brightness(50%);
}

canvas {
    display: block;
}

#canvas_container {
    width: 100%;
    height: 100vh;
}

button {
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%);
    border: 1px solid white;
    border-radius: 5px;
    font-size: 0.9rem;
    padding: 0.5rem 0.9em;
    background: #000000;
    color: white;
    -webkit-font-smoothing: antialiased;
    font-weight: bold;
    cursor: pointer;
    transition: all .3s;
}

button:hover {
    background: #ffffff;
    color: #000000;
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

let renderer,
scene,
camera,
sphereBg,
nucleus,
stars,
controls,
container = document.getElementById("canvas_container"),
timeout_Debounce,
noise = new SimplexNoise(),
cameraSpeed = 0,
blobScale = 3;


init();
animate();


function init() {
    scene = new THREE.Scene();

    camera = new THREE.PerspectiveCamera(55, window.innerWidth / window.innerHeight, 0.01, 1000)
    camera.position.set(0,0,230);

    const directionalLight = new THREE.DirectionalLight("#fff", 2);
    directionalLight.position.set(0, 50, -20);
    scene.add(directionalLight);

    let ambientLight = new THREE.AmbientLight("#ffffff", 1);
    ambientLight.position.set(0, 20, 20);
    scene.add(ambientLight);

    renderer = new THREE.WebGLRenderer({
        antialias: true,
        alpha: true
    });
    renderer.setSize(container.clientWidth, container.clientHeight);
    renderer.setPixelRatio(window.devicePixelRatio);
    container.appendChild(renderer.domElement);

    //OrbitControl
    controls = new THREE.OrbitControls(camera, renderer.domElement);
    controls.autoRotate = true;
    controls.autoRotateSpeed = 4;
    controls.maxDistance = 350;
    controls.minDistance = 150;
    controls.enablePan = false;

    const loader = new THREE.TextureLoader();
    const textureSphereBg = loader.load('https://i.ibb.co/4gHcRZD/bg3-je3ddz.jpg');
    const texturenucleus = loader.load('https://i.ibb.co/hcN2qXk/star-nc8wkw.jpg');
    const textureStar = loader.load("https://i.ibb.co/ZKsdYSz/p1-g3zb2a.png");
    const texture1 = loader.load("https://i.ibb.co/F8by6wW/p2-b3gnym.png");  
    const texture2 = loader.load("https://i.ibb.co/yYS2yx5/p3-ttfn70.png");
    const texture4 = loader.load("https://i.ibb.co/yWfKkHh/p4-avirap.png");


    /*  Nucleus  */   
    texturenucleus.anisotropy = 16;
    let icosahedronGeometry = new THREE.IcosahedronGeometry(30, 10);
    let lambertMaterial = new THREE.MeshPhongMaterial({ map: texturenucleus });
    nucleus = new THREE.Mesh(icosahedronGeometry, lambertMaterial);
    scene.add(nucleus);


    /*    Sphere  Background   */
    textureSphereBg.anisotropy = 16;
    let geometrySphereBg = new THREE.SphereBufferGeometry(150, 40, 40);
    let materialSphereBg = new THREE.MeshBasicMaterial({
        side: THREE.BackSide,
        map: textureSphereBg,
    });
    sphereBg = new THREE.Mesh(geometrySphereBg, materialSphereBg);
    scene.add(sphereBg);


    /*    Moving Stars   */
    let starsGeometry = new THREE.Geometry();

    for (let i = 0; i < 50; i++) {
        let particleStar = randomPointSphere(150); 

        particleStar.velocity = THREE.MathUtils.randInt(50, 200);

        particleStar.startX = particleStar.x;
        particleStar.startY = particleStar.y;
        particleStar.startZ = particleStar.z;

        starsGeometry.vertices.push(particleStar);
    }
    let starsMaterial = new THREE.PointsMaterial({
        size: 5,
        color: "#ffffff",
        transparent: true,
        opacity: 0.8,
        map: textureStar,
        blending: THREE.AdditiveBlending,
    });
    starsMaterial.depthWrite = false;  
    stars = new THREE.Points(starsGeometry, starsMaterial);
    scene.add(stars);


    /*    Fixed Stars   */
    function createStars(texture, size, total) {
        let pointGeometry = new THREE.Geometry();
        let pointMaterial = new THREE.PointsMaterial({
            size: size,
            map: texture,
            blending: THREE.AdditiveBlending,                      
        });

        for (let i = 0; i < total; i++) {
            let radius = THREE.MathUtils.randInt(149, 70); 
            let particles = randomPointSphere(radius);
            pointGeometry.vertices.push(particles);
        }
        return new THREE.Points(pointGeometry, pointMaterial);
    }
    scene.add(createStars(texture1, 15, 20));   
    scene.add(createStars(texture2, 5, 5));
    scene.add(createStars(texture4, 7, 5));


    function randomPointSphere (radius) {
        let theta = 2 * Math.PI * Math.random();
        let phi = Math.acos(2 * Math.random() - 1);
        let dx = 0 + (radius * Math.sin(phi) * Math.cos(theta));
        let dy = 0 + (radius * Math.sin(phi) * Math.sin(theta));
        let dz = 0 + (radius * Math.cos(phi));
        return new THREE.Vector3(dx, dy, dz);
    }
}


function animate() {

    //Stars  Animation
    stars.geometry.vertices.forEach(function (v) {
        v.x += (0 - v.x) / v.velocity;
        v.y += (0 - v.y) / v.velocity;
        v.z += (0 - v.z) / v.velocity;

        v.velocity -= 0.3;

        if (v.x <= 5 && v.x >= -5 && v.z <= 5 && v.z >= -5) {
            v.x = v.startX;
            v.y = v.startY;
            v.z = v.startZ;
            v.velocity = THREE.MathUtils.randInt(50, 300);
        }
    });


    //Nucleus Animation
    nucleus.geometry.vertices.forEach(function (v) {
        let time = Date.now();
        v.normalize();
        let distance = nucleus.geometry.parameters.radius + noise.noise3D(
            v.x + time * 0.0005,
            v.y + time * 0.0003,
            v.z + time * 0.0008
        ) * blobScale;
        v.multiplyScalar(distance);
    })
    nucleus.geometry.verticesNeedUpdate = true;
    nucleus.geometry.normalsNeedUpdate = true;
    nucleus.geometry.computeVertexNormals();
    nucleus.geometry.computeFaceNormals();
    nucleus.rotation.y += 0.002;


    //Sphere Beckground Animation
    sphereBg.rotation.x += 0.002;
    sphereBg.rotation.y += 0.002;
    sphereBg.rotation.z += 0.002;

    
    controls.update();
    stars.geometry.verticesNeedUpdate = true;
    renderer.render(scene, camera);
    requestAnimationFrame(animate);
}



/*     Resize     */
window.addEventListener("resize", () => {
    clearTimeout(timeout_Debounce);
    timeout_Debounce = setTimeout(onWindowResize, 80);
});
function onWindowResize() {
    camera.aspect = container.clientWidth / container.clientHeight;
    camera.updateProjectionMatrix();
    renderer.setSize(container.clientWidth, container.clientHeight);
}



/*     Fullscreen btn     */
// let fullscreen;
// let fsEnter = document.getElementById('fullscr');
// fsEnter.addEventListener('click', function (e) {
//     e.preventDefault();
//     if (!fullscreen) {
//         fullscreen = true;
//         document.documentElement.requestFullscreen();
//         fsEnter.innerHTML = "Exit Fullscreen";
//     }
//     else {
//         fullscreen = false;
//         document.exitFullscreen();
//         fsEnter.innerHTML = "Go Fullscreen";
//     }
// });
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215