HTML+CSS+JS实现 ❤️three 3D铅笔绘图工具特效❤️

效果演示：

代码目录：

主要代码实现：

部分CSS样式：

#mfPreviewBar {display: none !important;
}html,
body {position: fixed;overflow: hidden;touch-action: none;
}body {background-color: #f7f4f0;cursor: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/605067/cursor.png"), 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;
}

HTML代码 :

<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title>自适应3D铅笔画板</title><link rel="stylesheet" href="css/style.css"></head><body><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><script src='js/three.js'></script><script src='js/MTLLoader.js'></script><script src='js/OBJLoader.js'></script><script src="js/script.js"></script></body></html>