threejs打造一个三维铅笔签字绘画签名效果代码-html代码-BFW代码库

代码语言：html

所属分类：三维

代码描述：threejs打造一个三维铅笔签字绘画签名效果代码，可保存为png图片，支持手机端

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>
<head>
  <meta charset="UTF-8">
<style>
    #mfPreviewBar {
  display: none !important;
}

html,
body {
  position: fixed;
  overflow: hidden;
  touch-action: none;
}

body {
  background-color: #f7f4f0;
  cursor: url("data:image/png;base64,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"), auto;
  font-family: "Galano Grotesque Semi Bold";
  margin: 0;
  overflow: hidden;
}

button {
  font-family: "Galano Grotesque Semi Bold";
}

.colours {
  bottom: 90px;
  display: none;
  left: 50%;
  list-style-type: none;
  padding-left: 0;
  position: absolute;
  transform: translateX(-50%);
  z-index: 10;
}
@media (min-width: 1024px) {
  .colours {
    display: flex;
  }
}
.colours li {
  border-radius: 50%;
  display: inline-block;
  height: 14px;
  margin: 0 12px;
  width: 14px;
}
.colours li:nth-child(1) {
  background-color: #100c08;
}
.colours li:nth-child(2) {
  background-color: #759BA9;
}
.colours li:nth-child(3) {
  background-color: #77dd77;
}
.colours li:nth-child(4) {
  background-color: #ff6961;
}
.colours li:nth-child(5) {
  background-color: #ffd1dc;
}

.pencil__border {
  bottom: 0;
  left: 0;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 0;
  z-index: 3;
}
.pencil__border div:nth-child(1), .pencil__border div:nth-child(2) {
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}
.pencil__border div:nth-child(1):before, .pencil__border div:nth-child(1):after, .pencil__border div:nth-child(2):before, .pencil__border div:nth-child(2):after {
  background-color: #FF851B;
  content: "";
  opacity: 0.98;
  position: absolute;
}
.pencil__border div:nth-child(1):before {
  height: 20px;
  left: 20px;
  top: 0;
  width: 100%;
}
@media (min-width: 1024px) {
  .pencil__border div:nth-child(1):before {
    height: 60px;
    left: 55px;
  }
}
.pencil__border div:nth-child(1):after {
  bottom: 60px;
  height: 100%;
  left: 0;
  width: 20px;
}
@media (min-width: 1024px) {
  .pencil__border div:nth-child(1):after {
    bottom: 80px;
    width: 55px;
  }
}
.pencil__border div:nth-child(2):before {
  bottom: 0;
  right: 20px;
  height: 60px;
  width: 100%;
}
@media (min-width: 1024px) {
  .pencil__border div:nth-child(2):before {
    height: 80px;
    right: 55px;
  }
}
.pencil__border div:nth-child(2):after {
  bottom: 0;
  height: 100%;
  right: 0;
  width: 20px;
}
@media (min-width: 1024px) {
  .pencil__border div:nth-child(2):after {
    bottom: -60px;
    width: 55px;
  }
}

.pencil__border-inner {
  border: solid 1px #000;
  border-width: 2px;
  border-style: solid;
  bottom: 58px;
  left: 19px;
  position: absolute;
  right: 19px;
  top: 19px;
}
@media (min-width: 1024px) {
  .pencil__border-inner {
    bottom: 78px;
    left: 54px;
    right: 54px;
    top: 58px;
  }
}

.pencil__refresh {
  background-color: #FCF4EA;
  border: none;
  border-radius: 50%;
  bottom: 18px;
  cursor: pointer;
  height: 26px;
  padding: 4px 1px 0px;
  position: absolute;
  left: 50%;
  text-align: center;
  transform: translateX(-50%);
  width: auto;
  z-index: 3;
}
@media (min-width: 1024px) {
  .pencil__refresh {
    bottom: 27px;
    left: 80px;
    transform: none;
  }
}

.pencil__submit {
  bottom: 27px;
  display: none;
  position: absolute;
  right: 80px;
  z-index: 4;
}
@media (min-width: 1024px) {
  .pencil__submit {
    display: block;
  }
}

.btn {
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: 0.15em;
  outline: none;
  padding: 5px 10px 1px 10px;
  text-transform: uppercase;
  user-select: none;
  -moz-user-select: none;
}
</style>

</head>
<body>
<!-- partial:index.partial.html -->
<ul class="colours">
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
</ul>
<div class="pencil__border">
        <div></div>
        <div></div>
        <div class="pencil__border-inner"></div>
</div>
<button class="pencil__refresh btn">
        刷新
</button>
<button class="pencil__submit btn">保存PNG</button>
<!-- partial -->

<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.84.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/MTLLoader.min.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/OBJLoader.min.js"></script>
<script>
    
    // -- Drawing
const colors = [
"#100c08",
"#759BA9",
"#77dd77",
"#ff6961",
"#ffd1dc"];


let currentColorIndex = 0;

let colorButtons = document.querySelectorAll('.colours li'),
colorButtonsL = colorButtons.length;

for (var x = 0; x < colorButtonsL; x++) {
  (x => {
    colorButtons[x].addEventListener('click', () => {
      setActiveColour(x);
    });
  })(x);
}

function setActiveColour(x) {
  currentColorIndex = x;
}

// -- Drawing
const drawingCanvas = document.createElement('canvas');
drawingCanvas.width = window.innerWidth;
drawingCanvas.height = window.innerHeight;

drawingCanvas.style.position = 'fixed';
drawingCanvas.style.left = 0;
drawingCanvas.style.top = 0;
drawingCan.........完整代码请登录后点击上方下载按钮下载查看