-webkit-mask 遮罩3 【倒入两张图片】

亚伦影音工作室 发表于 2026-8-16 16:18

本帖最后由亚伦影音工作室于 2026-8-16 17:18 编辑 <br /><br /><style >
#papa {margin: 10px 100px;
width: 650px;
height: 1080px;
background:#000000 url(https://img-baofun.zhhainiao.com/pcwallpaper_ugc_mobile/static/4b1442569ec66dcdfed8fdf1ff81f35e.jpg)no-repeat 0 -50px/ cover;
box-shadow: 0px 0px 0px 2px #cccccc, 0px 0px 0px 8px #880000;
position: relative;overflow: hidden;
z-index: 12345;
}

#pcm{width: 100%;position: absolute;top:0px;left:0px;background:url(https://img-baofun.zhhainiao.com/pcwallpaper_ugc_mobile/static/1cbca08023c715c13c90c326b4733110.jpg)no-repeat 0px 100px / cover;
height: 100%;}

#box {width: 100%;position: absolute;top: 0px;left:0px;z-index: 3;
height: 100%;-webkit-mask: url(https://pic1.imgdb.cn/i/0348239ABr47zCIP6CDV2N.png)no-repeat 0 0px/100% 100%;}

#lrc {
   --state: paused;
   --motion: cover2;
   --tt: 2s;
   --bg: linear-gradient(0deg, #ff0000, #ff0000, #ff0000);
   position: absolute;z-index: 26;
   left: 52%;
   transform: translate(-50%);
   top: 40%;
   font:normal 3em 华文新魏;
   font-weight:400;
   color: #000080;
   white-space: pre;
   -webkit-background-clip: text;
   filter:drop-shadow(#FFFFFF 1px 0 0)drop-shadow(#FFFFFF 0 1px 0)drop-shadow(#FFFFFF -1px 0 0) drop-shadow(#FFFFFF 0 -1px0);
}
#lrc::before {
   position: absolute;
   content: attr(data-lrc);
   width: 20%;
   height: 100%;
   color: transparent;
   overflow: hidden;
   white-space: pre;
   background: var(--bg);

   -webkit-background-clip: text;
   animation: var(--motion) var(--tt) linear forwards;
   animation-play-state: var(--state);
}
@keyframes cover1{0% { width: 0%;}100% { width: 100%;}}
@keyframes cover2 { 0% { width: 0%;}100% { width: 100%;}}
</style >
<div id="papa">

<div id="box"><div id="pcm"></div></div>
<div id="lrc" data-lrc="遮罩巧用"title="歌词显示">遮罩巧用</div>
<audio id="aud" src="http://music.163.com/song/media/outer/url?id=1998644244.mp3" autoplay loop></audio>
</div>
<script >
(function() {
/*原始lrc歌词*/
let lrcStr = ``;

/*变量：mKey - 当前歌词索引；mFlag ：调用关键帧动画索引；averAdd ：平均值补偿*/
let mKey = 0, mFlag = true, averAdd = 0.3;

/*函数：获取每句歌词用时，歌词用时若超过平均值则取平均值，最后一句歌词则取平均值*/
let lrcTime = (ar) => {
   let tmpAr = [];
   for(j = 0; j <ar.length - 1; j ++) {
            if(j !== ar.length - 1) tmpAr = parseFloat((ar - ar).toFixed(1));
   }
   let aver = parseInt(tmpAr.reduce((a,b) => a + b) / (tmpAr.length - 1)) + averAdd;
   tmpAr.push(aver);
   tmpAr.forEach((item,key) => {
            ar = item > aver ? aver : item;
   });
   return ar;
};

/*函数：从原始lrc歌词获取信息并存入 n*3 数组*/
let getLrcAr = (text) => {
   let lrcAr = [];
   let calcRule = ;
   for(x of text.split('\n')) {
            let ar = [];
            let re = /\d+[\.:]\d+([\.:]\d+)?/g;
            let geci = x.replace(re,'');
            if(geci) {
                     geci = geci.replace(/[\[\]\'\"\t,]s?/g,'');
                     let time = x.match(re);
                     if(time != null) {
                           for(y of time) {
                                    let tmp = y.match(/\d+/g);
                                    let sec = 0;
                                    for(z in tmp) sec += tmp * calcRule;
                                    ar = ;
                                    lrcAr.push(ar);
                           }
                     }
            }
   }
   lrcAr.sort((a,b)=> a - b);
   return(lrcTime(lrcAr));
};

/*函数：模拟显示同步歌词*/
let showLrc = (time) => {
   let name = mFlag ? 'cover1' : 'cover2';
   lrc.innerHTML = lrcAr;
   lrc.dataset.lrc = lrcAr;
   lrc.style.setProperty('--motion', name);
   lrc.style.setProperty('--tt', time + 's');
   lrc.style.setProperty('--state', 'running');
   mKey += 1;
   mFlag = !mFlag;
};

/*函数：处理当前歌词索引 mKey*/
let calcKey = () => {
   for (j = 0; j < lrcAr.length; j++) {
            if (aud.currentTime <= lrcAr) {
                     mKey = j - 1;
                     break;
            }
   }
   if (mKey < 0) mKey = 0;
   if (mKey > lrcAr.length - 1) mKey = lrcAr.length - 1;
   let time = lrcAr - (aud.currentTime - lrcAr);
   showLrc(time);
};

/*格式化时间信息*/
let toMin = (val) => {
   if (!val) return '00:00';
   val = Math.floor(val);
   let min = parseInt(val / 60),
   sec = parseFloat(val % 60);
   if (min < 10) min = '0' + min;
   if (sec < 10) sec = '0' + sec;
   return min + ':' + sec;
}

/*函数：关键帧动画状态切换*/
let mState = () => aud.paused ? (lrc.style.setProperty('--state','paused'),box.style.animationPlayState = 'paused') : (lrc.style.setProperty('--state','running'),box.style.animationPlayState = 'running');

/*监听播放进度*/
aud.addEventListener('timeupdate', () => {
   for (j = 0; j < lrcAr.length; j++) {
            if (aud.currentTime >= lrcAr) {
                     cKey = j;
                     if (mKey === j) showLrc(lrcAr);
                     else continue;
            }
   }
});
aud.addEventListener('pause', () => mState());/*监听暂停事件*/
aud.addEventListener('play', () => mState());/*监听播放事件*/
aud.addEventListener('seeked', () => calcKey());/*监听查询事件*/
let lrcAr = getLrcAr(lrcStr); /*获得歌词数组*/
})();
</script>
<script>
papa.onclick =function() { aud.paused ? ( aud.play(),vid.play(),vid1.play()):(aud.pause(),vid.pause(),vid1.pause())};
</script>

亚伦影音工作室 发表于 2026-8-16 16:18

本帖最后由亚伦影音工作室于 2026-8-16 17:05 编辑

最近看到抖音特效里的效果双重曝光视频，很想尝试用代码制作，现在终于出炉，有待加入视频和粒子等修饰！望友友们大胆发挥！

pic.3gbizhi.com/uploads/20260815/9a185ed8481cf0ca38baf07e0ac55f7b.mp4

pic.3gbizhi.com/uploads/20260815/be7dd1ad5aac835516f9932cc72f6315.mp4

https://pic.3gbizhi.com/uploads/ ... ac23ddf045d7886.mp4

https://pic.3gbizhi.com/uploads/ ... 4161c78a172fe17.mp4

pic.3gbizhi.com/uploads/20260807/132c6375c4c37c9673714bce575e3b30.mp4

https://pic.3gbizhi.com/uploads/ ... 982b80a6396022c.mp4

https://pic.3gbizhi.com/uploads/20260603/3549ac7ed712e31ff11a6cc90d987287.mp4

pic.3gbizhi.com/uploads/20260506/4822f47d1ad4313f818839d8a9fc3ecc.mp4

梦油发表于 2026-8-16 17:01

欣赏佳作，问候林亚伦。

夕阳黄昏 发表于 2026-8-16 18:57

本帖最后由夕阳黄昏于 2026-8-17 07:45 编辑 <br /><br />

红影发表于 2026-8-17 13:34

漂亮。欣赏亚伦老师好帖{:4_187:}

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-webkit-mask 遮罩3 【倒入两张图片】