webgl+canvas实现三维立体网格内部漫游点亮动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：webgl+canvas实现三维立体网格内部漫游点亮动画效果代码

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>
::-webkit-scrollbar {
  width: 0.625rem;
  height: 0.625rem;
}

::-webkit-scrollbar-thumb {
  background: #111;
  border-radius: 0.3125rem;
  box-shadow: inset 0.125rem 0.125rem 0.125rem rgba(255, 255, 255, 0.25),
    inset -0.125rem -0.125rem 0.125rem rgba(0, 0, 0, 0.25);
  cursor: default;
}

::-webkit-scrollbar-track {
  background: #333;
}

::selection {
  background: #fff;
  color: #333;
}

html,
body {
  height: 100vh;
  height: 100dvh;
  margin: 0;
  overflow: hidden;
}

body {
  display: grid;
  grid-template-rows: calc(100dvh - 4rem) 4rem;
  font-family: system-ui, sans-serif;
}

canvas,
.editor,
#controls {
  grid-row: 1;
  grid-column: 1;
}

canvas {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: black;
  touch-action: none;
}

.editor,
.overlay,
#error {
  background: repeating-linear-gradient(0deg, #000a, #1119, #000a .25rem);
  padding: 1em;
}

.editor {
  color: #fefefe;
  tab-size: 2;
  border: none;
  resize: none;
}

.editor:focus {
  outline: none;
}

#error {
  grid-row: 2;
  grid-column: 1;
  margin: 0;
  padding-block: 0;
  padding-top: .5em;
  color: firebrick;
  overflow: auto;
  text-wrap: pretty;
}

#indicator {
  visibility: hidden;
  position: absolute;
  top: calc(var(--top, 0px) - var(--scroll-top, 0px));
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid firebrick;
  transform: translateY(-25%);
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: 0;
}

.editor,
.overlay {
  font-size: 1rem;
  line-height: 1.2;
  white-space: pre;
}

#controls {
  position: fixed;
  top: 1em;
  right: 2em;
}

.controls {
  position: relative;
  display: flex;
  gap: 1.5em;
  padding: .5em 1.25em;
  background: #1111;
  border-radius: 4px;
}

.controls::before,
.controls::after {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  transform: scale(.95);
  border-radius: inherit;
  opacity: 0;
}

.controls::before {
  background: #aef;
  animation: pulse 2s infinite;
}

.controls::after {
  background: #fefefe66;
  transition: transform 200ms ease-in-out;
}

.controls:hover::before,
.controls:hover::after {
  opacity: 1;
}

.controls:hover::before {
  transform: scale(.98);
  filter: blur(2px);
}

.controls:hover::after {
  transform: scale(1.025, 1.1);
}

.controls:hover {
  background: #111f;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.0125);
  }

  100% {
    transform: scale(1);
  }
}

.hidden {
  display: none !important;
}

.opaque {
  opacity: 1 !important;
  background: #111 !important;
}

input {
  all: unset;
  opacity: .2;
  filter: saturate(0) invert(1);
  cursor: pointer;
  transition: opacity 200ms ease-in-out;
  padding: .25em .5em;
}

input:hover {
  opacity: 1;
}

.icon {
  text-align: center;
  line-height: 1;
}

#btnToggleView {
  width: 1.25em;
}

#btnToggleView::after {
  content: '👁';
}

#btnToggleView:checked::after {
  content: '✏️';
}

#btnToggleResolution::after {
  content: '1️⃣';
}

#btnToggleResolution:checked::after {
  content: '2️⃣';
}

#btnReset::after {
  content: '⏮️';
}
</style>

  
</head>

<body translate="no">
  <canvas id="canvas"></canvas>
<textarea id="codeEditor" class="editor" spellcheck="false" autocorrect="off" autocapitalize="off" translate="no" oninput="render()"></textarea>
<pre id="error"></pre>
<div id="indicator"></div>
<div id="controls">
  <div class="controls">
    <input id="btnToggleView" class="icon" type="checkbox" name="toggleView" onclick="toggleView()">
    <input id="btnToggleResolution" class="icon" type="checkbox" name="toggleResolution" onchange="toggleResolution()">
    <input id="btnReset" class="icon" type="checkbox" name="reset" onclick="reset()">
  </div>
</div>
<script type="x-shader/x-fragment">#version 300 es
/*********
* made by Matthias Hurrle (@atzedent)
*/ 
precision highp float;
out vec4 O;
uniform float time;
uniform vec2 resolution;
#define FC gl_FragCoord.xy
#define R resolution
#define T (time+15.)
#define N normalize
#define rot(a) mat2(cos((a)-vec4(0,11,33,0)))
vec3 smin(vec3 a, vec3 b, float k) {
        vec3 h=clamp(.5+.5*(b/a),.0,1.);
        return mix(b,a,h)-k*h*(1.-h);
}
vec3 kifs(vec3 p) {
        for (int i=0; i<2; i++) {
                p.yz*=rot(T);
                p.xz*=rot(T);
                p=smin(p,-p,-1.);
                p-=vec3(.26,.02,.1);
        }
        return p;
}
float glow=.0;
float map(vec3 p) {
        vec3 st=p-vec3(0,-1,1);
        st=kifs(st);
        float t=T*2., k=.025,
        sp=length(st-vec3(.5*sin(t), .125*cos(t), -.5*(sin(T)*.125+.8)))-k;
        sp=min(sp,length(st-vec3(pow(.15*-cos(t*.7),2.), .125*-sin(t), 0))-k);
        sp=min(sp,length(st-vec3(pow(.125*cos(t*1.1),2.), .125*sin(t), .5*(cos(T)*.125+.8)))-k);
        glow+=.05/(.05+sp*sp*80.);
        p.z+=T+p.y*.2;
        p.y+=T-p.y*.2;
        vec2 q=vec2(0);
        p=abs(mod(p,4.)-2.);
        q.x=min(max(p.x, p.y),min(max(p.y, p.z),max(p.x, p.z)))-.5;
        p=abs(fract(p)-.25);
        p=abs(p)-.05;
        q.y=min(p.x,min(p.y, p.z));
        q=abs(q)-.03;
        float g=length(max(q,.0))+min(.0,max(q.x,q.y));
        return min(g,sp);
}
void cam(inout vec3 p) {
        p.yz*=rot(.2*T);
        p.xz*=rot(pow(cos(T*.1),2.)*3.1415926);
}
void main() {
        vec2 uv=(FC-.5*R)/min(R.x,R.y);
        vec3 col=vec3(0),
        p=vec3(0,0,-1.5),
        rd=N(vec3(uv,.25-dot(uv,uv)));
        cam(p); cam(rd);
        for (float i=.0; i++<80.;) {
        float d=map(p)*.25;
                if (abs(d)<1e-3) {
                        col+=(80.-i)/80.;
                        break;
                }
                if (d>6.) break;
                p+=rd*d;
        }
        col+=vec3(.95,.4,.8)*glow*.5;
        O=vec4(col,1);
}</script>
  
      <script >
/*********
 * made by Matthias Hurrle (@atzedent)
 */
let editMode = false // set to false to hide the code editor on load
let resolution = .5 // set 1 for full resolution or to .5 to start with half resolution on load
let renderDelay = 1000 // delay in ms before rendering the shader after a change
let dpr = Math.max(1, resolution * window.devicePixelRatio)
let frm, source, editor, store, renderer, pointers
const shaderId = 'It Is All Just a Reflection'
window.onload = init

function resize() {
  const { innerWidth: width, innerHeight: height } = window

  canvas.width = width * dpr
  canvas.height = height * dpr

  if (renderer) {
    renderer.updateScale(dpr)
  }
}
function toggleView() {
  editor.hidden = btnToggleView.checked
}
function reset() {
  let shader = source
  editor.text = shader ? shader.textContent : renderer.defaultSource
  store.putShaderSource(shaderId, editor.text)
  renderThis()
}
function toggleResolution() {
  resolution = btnToggleResolution.checked ? .5 : 1
  dpr = Math.max(1, resolution * window.devicePixelRatio)
  pointers.updateScale(dpr)
  resize()
}
function loop(now) {
  renderer.updateMouse(pointers.first)
  renderer.updatePointerCount(pointers.count)
  renderer.updatePointerCoords(pointers.coords)
  renderer.updateMove(pointers.move)
  renderer.render(now)
  frm = requestAnimationFrame(loop)
}
function renderThis() {
  editor.clearError()
  store.putShaderSource(shaderId, editor.text)

  const result = renderer.test(editor.text)

  if (result) {
    editor.setError(result)
  } else {
    renderer.updateShader(editor.text)
  }
  cancelAnimationFrame(frm) // Always.........完整代码请登录后点击上方下载按钮下载查看