threejs实现一个能量块散发能量线束动画效果代码
代码语言:html
所属分类:动画
代码描述:threejs实现一个能量块散发能量线束动画效果代码
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>
html,
body {
height: 100%;
width: 100%;
}
body {
font-size: 62.5%;
background: #fff;
overflow: hidden;
color: #fff;
font-family: serif;
-ms-scroll-chaining: none;
overscroll-behavior: none;
}
#loading {
background: #000;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 9999;
display: flex;
justify-content: center;
align-items: center;
visibility: visible;
opacity: 1;
transition: visibility 1.6s, opacity 1.6s;
}
#loading .circle {
width: 50px;
height: 50px;
background: #fff;
border-radius: 50%;
opacity: 0;
transform: scale(0, 0);
-webkit-animation: circle-animation 1.6s ease-in-out 0s infinite normal none;
animation: circle-animation 1.6s ease-in-out 0s infinite normal none;
}
#loading.loaded {
visibility: hidden;
opacity: 0;
}
#container {
width: 100%;
height: 100%;
}
#container .box {
color: #fff;
font-size: 3.2rem;
position: fixed;
z-index: 1;
top: 50%;
left: 10%;
transform: translateY(-50%);
overflow: hidden;
}
#container .box h1 {
letter-spacing: 0.4rem;
padding-bottom: 0.8rem;
}
#container .box h1::after {
content: '';
position: absolute;
height: 4px;
width: 100%;
background: #fff;
bottom: 0.8rem;
left: 0;
}
#container .box p {
font-size: 0.8rem;
}
#container .box .expansion {
font-size: 6.4rem;
}
/** css animation */
@-webkit-keyframes circle-animation {
0% {
opacity: 0;
transform: scale(0, 0);
}
50% {
opacity: 1;
transform: scale(1, 1);
}
}
@keyframes circle-animation {
0% {
opacity: 0;
transform: scale(0, 0);
}
50% {
opacity: 1;
transform: scale(1, 1);
}
}
</style>
</head>
<body>
<div id="loading">
<div class="circle"></div>
</div>
<div id="container">
<div class="box">
</div>
</div>
<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 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>
// vertex shader source
const vertexParticleShader = `
uniform float uTime;
uniform float uAmplitude;
varying vec3 vPos;
float PI = 3.14159265359;
attribute float number;
float a = 5.0;
float b = 3.14159265359 / 3.0;
float c = 7.0;
float d = 3.14159265359 / 5.0;
void main(){
vec3 pos = position.xyz;
pos.x = cos(a * number + b + uTime) * uAmplitude;
pos.y = cos(c * number + d + uTime) * uAmplitude;
pos.z = tan(number + uTime) * uAmplitude;
vPos = pos;
vec4 mvPosition = modelViewMatrix * vec4(pos, 1.0);
gl_Position = projectionMatrix * mvPosition;
}
`;
// fragment shader source
const fragmentParticleShader = `
uniform float uTime;
varying vec3 vPos;
vec3 pal( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d ) {
return a + b*cos( 6.28318*(c*t+d) );
}
void main () {
float len = length(vPos);
vec3 color =
pal(
length(len * 0.001 - uTime * 0.5),
vec3(0.5,0.5,0.5),vec3(0.5,0.5,0.5),vec3(2.0,1.0,0.0),vec3(0.5,0.20,0.25)
);
gl_FragColor = vec4(color, 0.4);
}
`;
const vertexBoxShader = `
uniform float uTime;
uniform float uAmplitude;
varying vec3 vPos;
float PI = 3.14159265359;
attribute float number;
float a = 5.0;
float b = 3.14159265359 / 3.0;
float c = 7.0;
float d = 3.14159265359 / 5.0;
void main(){
vec3 pos = position.xyz;
vPos = pos;
vec4 mvPosition = modelViewMatrix * vec4(pos, 1.0);
//gl_PointSize = 60.0 * (120.0 / - mvPosition.z);
gl_Position = projectionMatrix * mvPosition;
}
`;
const fragmentBoxShader = `
uniform float uTime;
varying vec3 vPos;
// Referred to https://iquilezles.org/www/articles/palettes/palettes.htm
// Thank you so much.
vec3 pal( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d ) {
return a + b*cos( 6.28318*(c*t+d) );
}
void main () {
//float f = length(gl_PointCoord - vec2(0.5, 0.5));
//if (f > 0.1) discard;
float len = length(vPos);
vec3 color =
pal(
length(len * 0.01 - uTime * 0.5),
vec3(0.5,0.5,0.5),vec3(0.5,0.5,0.5),vec3(2.0,1.0,0.0),vec3(0.5,0.20,0.25)
);
gl_FragColor = vec4(color, 0.4);
}
`;
/**
* Dat class
*/
class Dat {
constructor(sketch) {
this.sketch = sketch;
this.initialize();
}
initialize() {
this.gui = new dat.GUI();
this.parameters = this.setParameters();
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