three+gsap实现碎片幻灯片切换动画效果代码
代码语言：html
所属分类：幻灯片
代码描述：three+gsap实现碎片幻灯片切换动画效果代码
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
<html lang="en">
<head>
<meta charset="UTF-8">
<style>
* {
margin: 0;
padding: 0;
}
body {
overflow: hidden;
}
.buttons {
position: absolute;
top: 50%;
transform: translateY(30vh);
text-align: center;
left: 0;
width: 100%;
font-size: 24px;
font-family: Garamond, Baskerville, "Baskerville Old Face", "Hoefler Text", "Times New Roman", serif;
font-size: 24px;
}
span {
cursor: pointer;
}
</style>
</head>
<body style="background-color: rgb(203, 218, 195); color: rgb(68, 68, 68);">
<div class="buttons">
<span class="prev">previous</span> ~
<span class="next">next</span>
</div>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/gsap.3.5.2.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.122.js"></script>
<script>
const vertex = `
float PI = 3.1415926535897932384626433;
vec3 mod289(vec3 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 mod289(vec4 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 permute(vec4 x) {
return mod289(((x*34.0)+1.0)*x);
}
vec4 taylorInvSqrt(vec4 r){
return 1.79284291400159 - 0.85373472095314 * r;
}
float snoise(vec3 v) {
const vec2 C = vec2(1.0/6.0, 1.0/3.0) ;
const vec4 D = vec4(0.0, 0.5, 1.0, 2.0);
// First corner
vec3 i = floor(v + dot(v, C.yyy) );
vec3 x0 = v - i + dot(i, C.xxx) ;
// Other corners
vec3 g = step(x0.yzx, x0.xyz);
vec3 l = 1.0 - g;
vec3 i1 = min( g.xyz, l.zxy );
vec3 i2 = max( g.xyz, l.zxy );
// x0 = x0 - 0.0 + 0.0 * C.xxx;
// x1 = x0 - i1 + 1.0 * C.xxx;
// x2 = x0 - i2 + 2.0 * C.xxx;
// x3 = x0 - 1.0 + 3.0 * C.xxx;
vec3 x1 = x0 - i1 + C.xxx;
vec3 x2 = x0 - i2 + C.yyy; // 2.0*C.x = 1/3 = C.y
vec3 x3 = x0 - D.yyy; // -1.0+3.0*C.x = -0.5 = -D.y
// Permutations
i = mod289(i);
vec4 p = permute( permute( permute(
i.z + vec4(0.0, i1.z, i2.z, 1.0 ))
+ i.y + vec4(0.0, i1.y, i2.y, 1.0 ))
+ i.x + vec4(0.0, i1.x, i2.x, 1.0 ));
// Gradients: 7x7 points over a square, mapped onto an octahedron.
// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)
float n_ = 0.142857142857; // 1.0/7.0
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z); // mod(p,7*7)
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_ ); // mod(j,N)
vec4 x = x_ *ns.x + ns.yyyy;
vec4 y = y_ *ns.x + ns.yyyy;
vec4 h = 1.0 - abs(x) - abs(y);
vec4 b0 = vec4( x.xy, y.xy );
vec4 b1 = vec4( x.zw, y.zw );
//vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
//vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
vec4 s0 = floor(b0)*2.0 + 1.0;
vec4 s1 = floor(b1)*2.0 + 1.0;
vec4 sh = -step(h, vec4(0.0));
vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;
vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;
vec3 p0 = vec3(a0.xy,h.x);
vec3 p1 = vec3(a0.zw,h.y);
vec3 p2 = vec3(a1.xy,h.z);
vec3 p3 = vec3(a1.zw,h.w);
//Normalise gradients
vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
p0 *= norm.x;
p1 *= norm.y;
p2 *= norm.z;
p3 *= norm.w;
// Mix final noise value
vec4 m = max(0.5 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);
m = m * m;
return 105.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1),
dot(p2,x2), dot(p3,x3) ) );
}
uniform vec3 p1v;
uniform vec3 p1c;
uniform vec3 p2v;
uniform vec3 p2c;
uniform vec3 p3v;
uniform vec3 p3c;
uniform vec3 p4v;
uniform vec3 p4c;
uniform vec3 p5v;
uniform vec3 p5c;
uniform vec3 p6v;
uniform vec3 p6c;
uniform vec3 p7v;
uniform vec3 p7c;
uniform vec3 p8v;
uniform vec3 p8c;
uniform vec3 p9v;
uniform vec3 p9c;
uniform vec3 p10v;
uniform vec3 p10c;
uniform vec3 p11v;
uniform vec3 p11c;
uniform vec3 p12v;
uniform vec3 p12c;
uniform vec3 p13v;
uniform vec3 p13c;
uniform vec3 p14v;
uniform vec3 p14c;
uniform vec3 p15v;
uniform vec3 p15c;
uniform vec3 p16v;
uniform vec3 p16c;
uniform vec3 p17v;
uniform vec3 p17c;
uniform vec3 p18v;
uniform vec3 p18c;
uniform vec3 p19v;
uniform vec3 p19c;
uniform vec3 p20v;
uniform vec3 p20c;
uniform float pointCount;
uniform float progress;
uniform float w;
uniform float h;
attribute vec3 aCoordinates;
varying vec2 vCoordinates;
varying vec3 vMvm;
varying vec3 vPos;
varying float delayedProgress;
void main() {
// voronoi
float shortest = max(w,h) + 1.;
vec3 color = vec3(0.,0.,0.);
vec3 closest = vec3(0.,0.,0.);
float d = 0.;
d = distance(p1v,position); if ( d < shortest) { shortest = d; closest = p1v; color = p1c; }
d = distance(p2v,position); if ( d < shortest) { shortest = d; closest = p2v; color = p2c; }
d = distance(p3v,position); if ( d < shortest) { shortest = d; closest = p3v; color = p3c; }
d = distance(p4v,position); if ( d < shortest) { shortest = d; closest = p4v; color = p4c; }
d = distance(p5v,position); if ( d < shortest) { shortest = d; closest = p5v; color = p5c; }
d = distance(p6v,position); if ( d < shortest) { shortest = d; closest = p6v; color = p6c; }
d = distance(p7v,position); if ( d < shortest) { shortest = d; closest = p7v; color = p7c; }
d = distance(p8v,position); if ( d < shortest) { shortest = d; closest = p8v; color = p8c; }
d = distance(p9v,position); if ( d < shortest) { shortest = d; closest = p9v; color = p9c; }
d = distance(p10v,position); if ( d < shortest) { shortest = d; closest = p10v; color = p10c; }
d = distance(p11v,position); if ( d < shortest) { shortest = d; closest = p11v; color = p11c; }
d = distance(p12v,position); if ( d < shortest) { shortest = d; closest = p12v; color = p12c; }
d = distance(p13v,position); if ( d < shortest) { shortest = d; closest = p13v; color = p13c; }
d = distance(p14v,position); if ( d < shortest) { shortest = d; closest = p14v; color = p14c; }
d = distance(p15v,position); if ( d < shortest) { shortest = d; closest = p15v; color = p15c; }
d = distance(p16v,position); if ( d < shortest) { shortest = d; closest = p16v; color = p16c; }
d = distance(p17v,position); if ( d < shortest) { shortest = d; closest = p17v; color = p17c; }
d = distance(p18v,position); if ( d < shortest) { shortest = d; closest = p18v; color = p18c; }
d = distance(p19v,position); if ( d < shortest) { shortest = d; closest = p19v; color = p19c; }
d = distance(p20v,position); if ( d < shortest) { shortest = d; closest = p20v; color = p20c; }
float xPos = ((aCoordinates.x/w)*2.)-1.;
vCoordinates = aCoordinates.xy;
vMvm = vec3(xPos, aCoordinates.y/h,0.);
vPos = position;
float dir = color.x > .5 ? -1. :1.;
float progressPerc = progress/100.;
float lowerBound = color.r *.5;
float upperBound = 1. - (color.g * .5);
delayedProgress = smoothstep(lowerBound, upperBound, progressPerc);
float leverProgress = 1. - abs((delayedProgress -.5)*2.);
vec3 newPos = position;
float dst = distance(closest, newPos);
float a =newPos.y- closest.y;
float b =newPos.x- closest.x;
float angle =atan(a , b);
angle += PI*2. * delayedProgress;
float x = cos(angle) * dst;
float y = sin(angle) * dst;
newPos.x = closest.x + x;
newPos.z = newPos.z + (closest.z + y)*leverProgress + (500. * leverProgress * dir);
vec4 mvPosition = modelViewMatrix * vec4(newPos, 1.);
gl_PointSize = 2000.*(1./-mvPosition.z);
gl_Position = projectionMatrix * mvPosition;
}
`;
const fragment = `
uniform float pointCount;
uniform float progress;
uniform float w;
uniform float h;
varying vec2 vCoordinates;
uniform sampler2D currentImg;
uniform sampler2D nextImg;
varying vec3 vMvm;
varying vec3 vPos;
varying float delayedProgress;
void main() {
vec2 imgUv = vec2(vCoordinates.x/w,vCoordinates.y/h);
vec4 current = texture2D(currentImg,imgUv);
vec4 next = texture2D(nextImg,imgUv);
vec4 image = mix(current, next, delayedProgress);
gl_FragColor = image;
}
`;
const img1 = "//repo.bfw.wiki/bfwrepo/image/5e62ef20b92ee.png?x-oss-process=image/auto-orient,1/resize,m_fill,w_400,h_300,/quality,q_90"; // https://unsplash.com/photos/w6OniVDCfn0
const img2 = "//repo.bfw.wiki/bfwrepo/image/5e62ef41353c3.png?x-oss-process=image/auto-orient,1/resize,m_fill,w_400,h_300,/quality,q_90"; // https://unsplash.com/photos/cfQEO_1S0Rs
const img3 = "//repo.bfw.wiki/bfwrepo/image/5e62ef60656fd.png?x-oss-process=image/auto-orient,1/resize,m_fill,w_400,h_300,/quality,q_90"; // https://unsplash.com/photos/tb4heMa-ZRo
class Sketch {
constructor() {
.........完整代码请登录后点击上方下载按钮下载查看
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