{"id":2772,"date":"2021-03-17T22:40:00","date_gmt":"2021-03-17T14:40:00","guid":{"rendered":"https:\/\/www.yumefx.com\/?p=2772"},"modified":"2021-03-17T12:44:57","modified_gmt":"2021-03-17T04:44:57","slug":"svg-filter%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.yumefx.com\/?p=2772","title":{"rendered":"SVG filter\u4f7f\u7528"},"content":{"rendered":"\n<h1 style=\"text-align: center;\">\u524d\u8a00<\/h1>\n<p>SVG(Scalable Vector Graphics)\u610f\u4e3a\u53ef\u7f29\u653e\u77e2\u91cf\u56fe\u5f62\uff0c\u901a\u8fc7XML\u683c\u5f0f\u5b9a\u4e49\u56fe\u50cf\uff0c\u5728HTML\u5f00\u53d1\u4e2d\u6709\u5e7f\u6cdb\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u5176\u4e2d\uff0cSVG filter(SVG \u8fc7\u6ee4\u5668)\u53ef\u4ee5\u7528\u6765\u7ed9\u56fe\u5f62\u6dfb\u52a0\u4e00\u4e9b\u7279\u6b8a\u6548\u679c\uff0c\u4f8b\u5982\u6a21\u7cca\u3001\u9634\u5f71\u3001\u8272\u5f69\u8f6c\u6362\u7b49\u7b49\u3002<\/p>\n<p>\u76f8\u6bd4\u4e8eCSS\u7684filter\u548cBlend Modes\uff0cSVG filter\u53ef\u4ee5\u63d0\u4f9bRGBA\u901a\u9053\u7ea7\u522b\u7684\u63a7\u5236\uff0c\u80fd\u591f\u66f4\u597d\u5730\u5904\u7406\u56fe\u50cf\u548c\u5f97\u5230\u66f4\u591a\u7684\u7279\u6b8a\u6548\u679c\u3002<\/p>\n<p>\u800c\u5728\u517c\u5bb9\u6027\u65b9\u9762\u4e5f\u53ef\u4ee5\u63a5\u53d7\uff0c\u9664\u975e\u5f3a\u5236\u8981\u6c42\u517c\u5bb9IE9\u53ca\u4ee5\u4e0b\u7248\u672c\u6d4f\u89c8\u5668\uff0c\u56e0\u6b64\u53ef\u4ee5\u6bd4\u8f83\u653e\u5fc3\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u5e38\u7528\u7684filter\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff08fe\u524d\u7f00\u610f\u4e3afilter\u00a0effect\uff09\uff1a<\/p>\n<ul>\n<li>feGaussianBlur\uff1a\u6a21\u7cca\u8fc7\u6ee4\u5668\uff0c\u6700\u4e3a\u5e38\u7528\u7684\u8fc7\u6ee4\u5668<\/li>\n<li>feColorMatrix\uff1a\u8272\u5f69\u77e9\u9635\u8fc7\u6ee4\u5668\uff0c\u8f83\u4e3a\u5e38\u7528\uff0c\u5e38\u7528\u4e8e\u8c03\u6574\u8272\u5f69<\/li>\n<li>feOffset\uff1a\u504f\u79fb\u8fc7\u6ee4\u5668\uff0c\u5e38\u7528\u4e8e\u521b\u5efa\u9634\u5f71<\/li>\n<li>feMerge\uff1a\u6df7\u5408\u8fc7\u6ee4\u5668\uff0c\u5e38\u7528\u4e8e\u539f\u56fe\u548c\u8fc7\u6ee4\u5668\u6548\u679c\u53e0\u52a0<\/li>\n<li>feImage\uff1a\u56fe\u7247\u8fc7\u6ee4\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528JPG\u3001PNG\u3001SVG\u6587\u4ef6\u6216SVG\u5143\u7d20\u4f5c\u8f93\u5165\u6e90<\/li>\n<li>feComponentTransfer<\/li>\n<li>feComposite<\/li>\n<li>feConvolveMatrix<\/li>\n<li>feDiffuseLighting<\/li>\n<li>feDisplacementMap<\/li>\n<li>feFlood<\/li>\n<li>feBlend<\/li>\n<li>feMorphology<\/li>\n<li>feSpecularLighting<\/li>\n<li>feTile<\/li>\n<li>feTurbulence<\/li>\n<li>feDistantLight<\/li>\n<li>fePointLight<\/li>\n<li>feSpotLight<\/li>\n<\/ul>\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">\u4f7f\u7528<\/h1>\n<p>\u4ee5\u4e0b\u9762\u8fd9\u4e2a\u6a21\u7cca\u6548\u679c\u4e3a\u4f8b<\/p>\n\n\n\n<pre><span>&lt;div class=\"box\"&gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=\"box\" style=\"filter: url(#blurFilter);\" &gt;&lt;\/div&gt;<\/span>\n<span>&lt;svg&gt;<\/span>\n<span>    &lt;filter id=\"blurFilter\" &gt;<\/span>\n<span>        &lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"3\" &gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>&lt;\/svg&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u58f0\u660efilter\u540e\uff0c\u5176\u4ed6\u5143\u7d20\u53ef\u4ee5\u901a\u8fc7filter: url(#filterID)\u65b9\u5f0f\u8fdb\u884c\u8c03\u7528\u3002\u5176\u4e2dstdDeviation\u5c5e\u6027\u4e3a\u6a21\u7cca\u8fc7\u6ee4\u5668\u7684\u6a21\u7cca\u5c3a\u5bf8\u3002<\/p>\n<p>\u6548\u679c\u5982\u4e0b<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2776 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_02.jpg\" alt=\"\" width=\"322\" height=\"181\" srcset=\"https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_02.jpg 322w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_02-300x169.jpg 300w\" sizes=\"(max-width: 322px) 100vw, 322px\" \/><\/p>\n<h3>\u00a0<\/h3>\n<h3>\u8fc7\u6ee4\u5668\u7684\u8f93\u5165\u4e0e\u8f93\u51fa<\/h3>\n<p>SVG filter\u5728\u5e94\u7528\u8fc7\u6ee4\u6548\u679c\u65f6\u9700\u8981\u4e00\u4e2a\u8f93\u5165\u6e90\uff0c\u8fd9\u4e2a\u8f93\u5165\u6e90\u53ef\u4ee5\u662f\u4e00\u4e2a\u56fe\u5f62\uff0c\u6216\u56fe\u5f62\u7684alpha\u901a\u9053\uff0c\u6216\u53e6\u4e00\u4e2a\u8fc7\u6ee4\u5668\u7684\u8f93\u51fa\u503c\uff08\u94fe\u63a5\u4f7f\u7528\uff09\u3002<\/p>\n<p>\u8f93\u5165\u6e90\u53ef\u4ee5\u901a\u8fc7in\u5c5e\u6027\u6307\u5b9a\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre><span>&lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"10\"\/&gt;<\/span>\n<\/pre>\n\n\n\n<p>SourceGraphic\u610f\u4e3a\u4f7f\u7528\u56fe\u5f62\u7684\u6240\u6709\u901a\u9053\u4f5c\u4e3a\u8f93\u5165\u6e90\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528SourceAlpha\u53ea\u4f7f\u7528\u56fe\u5f62\u7684Alpha\u900f\u660e\u901a\u9053\u4f5c\u4e3a\u8f93\u5165\u6e90\u3002<\/p>\n<p>\u5c06\u8fc7\u6ee4\u5668\u8f93\u51fa\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u8fc7\u6ee4\u5668\u7684\u8f93\u5165\uff0c\u9700\u8981\u5728\u8f93\u51fa\u5143\u7d20\u4e0a\u6dfb\u52a0result\u5c5e\u6027\uff0c\u7136\u540e\u53e6\u4e00\u4e2a\u5143\u7d20\u901a\u8fc7in\u5c5e\u6027\u8f93\u5165\uff08\u53ea\u80fd\u5728\u5f53\u524dfilter\u6807\u7b7e\u5185\u5f15\u7528\uff0c\u7c7b\u4f3c\u4e8e\u5c40\u90e8\u53d8\u91cf\uff09\u3002<\/p>\n<p>\u5f53\u67d0\u4e9b\u8fc7\u6ee4\u5668\u9700\u8981\u591a\u4e2a\u8f93\u5165\u6e90\u65f6\uff0c\u4f8b\u5982feBlend\uff0c\u6240\u9700\u4e24\u4e2a\u8f93\u5165\u6e90\u5206\u522b\u4e3ain\u548cin2\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u6a21\u62dfbox-shadow\u7684\u6848\u4f8b\uff1a<\/p>\n\n\n\n<pre>\n<span>&lt;div class=&quot;box&quot;&gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=&quot;box&quot; style=&quot;filter: url(#shadow);&quot; &gt;&lt;\/div&gt;<\/span>\n<span><\/span>\n<span>&lt;svg&gt;<\/span>\n<span>    &lt;filter id=&quot;shadow&quot;&gt;<\/span>\n<span>        &lt;feGaussianBlur in=&quot;SourceAlpha&quot; stdDeviation=&quot;3&quot; result=&quot;blur&quot;&gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>        &lt;feOffset in=&quot;blur&quot; dx=&quot;4&quot; dy=&quot;4&quot; result=&quot;offset&quot;&gt;&lt;\/feOffset&gt;<\/span>\n<span>        &lt;feMerge&gt;<\/span>\n<span>            &lt;feMergeNode in=&quot;offset&quot;&gt;&lt;\/feMergeNode&gt;<\/span>\n<span>            &lt;feMergeNode in=&quot;SourceGraphic&quot;&gt;&lt;\/feMergeNode&gt;<\/span>\n<span>        &lt;\/feMerge&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>&lt;\/svg&gt;<\/span>\n<\/pre>\n\n\n\n<p>feOffset\u8fc7\u6ee4\u5668\u5c06\u901a\u8fc7feGaussianBlur\u8fc7\u6ee4\u5668\u6a21\u7cca\u540e\u7684Alpha\u901a\u9053\u8fdb\u884c\u504f\u79fb\uff08feOffset\u7684\u504f\u79fb\u91cf\u7531dx\u548cdy\u5c5e\u6027\u63a7\u5236\uff09\uff0c\u7136\u540e\u4f7f\u7528feMerge\uff08\u6ce8\u610ffeMergeNode\u4e3a\u987a\u5e8f\u53e0\u52a0\uff09\u4e0e\u539f\u56fe\u5f62\u53e0\u52a0\u663e\u793a\uff0c\u5236\u4f5c\u7b80\u5355\u5730\u9634\u5f71\u6548\u679c\u3002<\/p>\n<p>\u5f97\u5230\u7684\u6548\u679c\u5982\u4e0b<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2786 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_05.jpg\" alt=\"\" width=\"604\" height=\"263\" srcset=\"https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_05.jpg 604w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_05-300x131.jpg 300w\" sizes=\"(max-width: 604px) 100vw, 604px\" \/><\/p>\n<h3>\u00a0<\/h3>\n<h3>\u8fc7\u6ee4\u5668\u5c3a\u5bf8<\/h3>\n<p>\u4e00\u4e2aSVG\u00a0filter\u7684\u5c3a\u5bf8\u7531x\u3001y\u3001width\u3001height\u56db\u4e2a\u5c5e\u6027\u51b3\u5b9a\u3002<\/p>\n<p>\u7531\u4e8e\u8fc7\u6ee4\u5668\u8f93\u51fa\u7684\u56fe\u5f62\u901a\u5e38\u4f1a\u6bd4\u8f93\u5165\u56fe\u5f62\u5927\uff08\u4f8b\u5982\u6a21\u7cca\u6548\u679c\uff09\uff0c\u56e0\u6b64\u6709\u65f6\u9700\u8981\u5bf9\u8f93\u51fa\u56fe\u5f62\u8fdb\u884c\u88c1\u526a\u3002<\/p>\n<p>width\u548cheight\u7528\u4e8e\u6307\u5b9a\u8fc7\u6ee4\u5668\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff0c\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u5e94\u8be5\u8bbe\u7f6e\u4e3a\u5927\u4e8e\u8f93\u51fa\u56fe\u50cf\u7684\u5c3a\u5bf8\uff0cx\u548cy\u7528\u4e8e\u6307\u5b9a\u88c1\u5207\u7684\u4f4d\u7f6e\uff0c\u901a\u5e38\u9700\u8981\u8bbe\u7f6e\u4e3a\u8d1f\u503c\u3002<\/p>\n<p>\u5728\u672a\u8bbe\u7f6e\u5c3a\u5bf8\u5c5e\u6027\u65f6\uff0cx\u548cy\u9ed8\u8ba4\u4e3a-10%\uff0cwidth\u548cheight\u9ed8\u8ba4\u4e3a120%\u539f\u59cb\u5bbd\u9ad8\u3002<\/p>\n<p>\u4ee5\u4e0b\u9762\u7684\u6a21\u7cca\u6548\u679c\u4e3a\u4f8b\uff1a<\/p>\n\n\n\n<pre><span>&lt;div class=\"box\"&gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=\"box\" style=\"filter: url(#blurFilter1);\" &gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=\"box\" style=\"filter: url(#blurFilter2);\" &gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=\"box\" style=\"filter: url(#blurFilter3);\" &gt;&lt;\/div&gt;<\/span>\n<span>&lt;svg&gt;<\/span>\n<span>    &lt;filter id=\"blurFilter1\"&gt;<\/span>\n<span>        &lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"25\"&gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>    &lt;filter id=\"blurFilter2\" height=\"120\" width=\"120\"&gt;<\/span>\n<span>        &lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"25\"&gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>    &lt;filter id=\"blurFilter3\" x=\"-30%\" y=\"-30%\" height=\"120\" width=\"120\"&gt;<\/span>\n<span>        &lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"25\"&gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>&lt;\/svg&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u5f97\u5230\u7684\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2779 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_03.jpg\" alt=\"\" width=\"862\" height=\"210\" srcset=\"https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_03.jpg 862w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_03-300x73.jpg 300w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_03-768x187.jpg 768w\" sizes=\"(max-width: 862px) 100vw, 862px\" \/><\/p>\n<h3>\u00a0<\/h3>\n<h3>feColorMatrix<\/h3>\n<p>\u8fd9\u4e2a\u8fc7\u6ee4\u5668\u662f\u6bd4\u8f83\u96be\u4ee5\u7406\u89e3\u4f46\u529f\u80fd\u5341\u5206\u5f3a\u5927\u800c\u4e14\u5e38\u7528\u7684\u8272\u5f69\u8f6c\u6362\u8fc7\u6ee4\u5668\uff0c\u8fd8\u662f\u4ee5\u4e0a\u9762\u7684box-shadow\u4e3a\u6848\u4f8b\uff0c\u5982\u679c\u60f3\u8981\u6dfb\u52a0\u5f69\u8272\u9634\u5f71\uff0c\u5219\u53ef\u4ee5\u5728feGaussianBlur\u524d\u9762\u6dfb\u52a0feColorMatrix\u8fc7\u6ee4\u5668\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre>\n<span>&lt;div class=&quot;box&quot;&gt;&lt;\/div&gt;<\/span>\n<span>&lt;div class=&quot;box&quot; style=&quot;filter: url(#shadow);&quot; &gt;&lt;\/div&gt;<\/span>\n<span><\/span>\n<span>&lt;svg&gt;<\/span>\n<span>    &lt;filter id=&quot;shadow&quot;&gt;<\/span>\n<span>        &lt;feColorMatrix type=&quot;matrix&quot; result=&quot;color&quot; values=&quot;<\/span>\n<span>        0 0 0 0.9 0<\/span>\n<span>        0 0 0 0.2 0<\/span>\n<span>        0 0 0 0.5 0<\/span>\n<span>        0 0 0 1   0<\/span>\n<span>        &quot;&gt;&lt;\/feColorMatrix&gt;<\/span>\n<span>        &lt;feGaussianBlur in=&quot;color&quot; stdDeviation=&quot;3&quot; result=&quot;blur&quot;&gt;&lt;\/feGaussianBlur&gt;<\/span>\n<span>        &lt;feOffset in=&quot;blur&quot; dx=&quot;4&quot; dy=&quot;4&quot; result=&quot;offset&quot;&gt;&lt;\/feOffset&gt;<\/span>\n<span>        &lt;feMerge&gt;<\/span>\n<span>            &lt;feMergeNode in=&quot;offset&quot;&gt;&lt;\/feMergeNode&gt;<\/span>\n<span>            &lt;feMergeNode in=&quot;SourceGraphic&quot;&gt;&lt;\/feMergeNode&gt;<\/span>\n<span>        &lt;\/feMerge&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>&lt;\/svg&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2788 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_06.jpg\" alt=\"\" width=\"558\" height=\"246\" srcset=\"https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_06.jpg 558w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_06-300x132.jpg 300w\" sizes=\"(max-width: 558px) 100vw, 558px\" \/><\/p>\n<p>\u5f53type\u5c5e\u6027\u4e3amatrix\u65f6\uff0cvalue\u4e3a4\u884c5\u5217\u768420\u4e2a\u6570\u5b57\u77e9\u9635\uff0c\u6bcf\u4e00\u884c\u4ee3\u8868\u4e00\u4e2a\u65b9\u7a0b\u5f0f\uff0c5\u4e2a\u6570\u5b57\u4e3a\u539f\u56feRGBA\u901a\u9053\u548c\u5e38\u91cf1\uff0c\u6700\u7ec8\u8ba1\u7b97\u51fa\u7684\u503c\u5373\u4e3a\u8f93\u51fa\u7ed3\u679c\u5404\u901a\u9053\u7684\u503c\u3002<\/p>\n<p>\u53e6\u5916\u53d6\u503c\u8303\u56f4\u4e0d\u6b62\u4e8e0~1\uff0c\u6570\u503c\u5c0f\u4e8e0\u65f6\uff0c\u4f1a\u5f97\u5230\u53cd\u76f8\uff0c\u6570\u503c\u5927\u4e8e1\u65f6\uff0c\u4f1a\u5f97\u5230\u66f4\u4eae\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<pre>\n<span>\/\/ R G B A   1<\/span>\n<span>   0 0 0 0.9 0 \/\/outR = 0*R + 0*G + 0*B + 0.9*A + 0*1<\/span>\n<span>   0 0 0 0.2 0 \/\/outG = 0*R + 0*G + 0*B + 0.2*A + 0*1<\/span>\n<span>   0 0 0 0.5 0 \/\/outB = 0*R + 0*G + 0*B + 0.5*A + 0*1<\/span>\n<span>   0 0 0 1   0 \/\/outA = 0*R + 0*G + 0*B + 1*A + 0*1<\/span>\n<\/pre>\n\n\n\n<p>\u7531\u4e8e\u6e90\u56fe\u5f62alpha\u901a\u9053\u662f\u6570\u503c\u4e3a1\u7684\u4e0d\u900f\u660e\uff0c\u56e0\u6b64\u6700\u540e\u8f93\u51fa\u7684\u9634\u5f71\u8272\u5f69\u5373\u4e3aRGBA(0.9\uff0c0.2\uff0c0.5\uff0c1)\u7684\u7eaf\u8272\uff0c\u800c\u5982\u679c\u4ee5\u4e00\u5f20\u8272\u5f69\u6591\u6593\u7684\u56fe\u7247\u4e3a\u6e90\u7d20\u6750\uff0c\u4f7f\u7528RGB\u901a\u9053\u8fdb\u884c\u8272\u5f69\u8f6c\u6362\uff0c\u6700\u540e\u5f97\u5230\u7684\u8f93\u51fa\u4e5f\u4f1a\u662f\u5f69\u8272\u7684\uff0c\u4e5f\u5c31\u662f\u7f8e\u56fe\u6ee4\u955c\u7684\u539f\u7406\u3002<\/p>\n<p>type\u5c5e\u6027\u9664\u4e86\u6700\u5e38\u7528\u7684matrix\u503c\u5916\uff0c\u5176\u4ed6\u7684\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2790 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_08.jpg\" alt=\"\" width=\"712\" height=\"182\" srcset=\"https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_08.jpg 712w, https:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_08-300x77.jpg 300w\" sizes=\"(max-width: 712px) 100vw, 712px\" \/><\/p>\n\n\n\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">\u4e00\u4e2a\u6c34\u6ef4\u878d\u5408\u6848\u4f8b<\/h1>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2afeGaussianBlur\u548cfeColorMatrix\u6ee4\u955c\u914d\u5408box-shadow\u5b9e\u73b0\u7684\u6c34\u6ef4\u878d\u5408\u6548\u679c\u3002<\/p>\n<p>\u4e4b\u6240\u4ee5\u6c34\u6ef4\u4e4b\u95f4\u4f1a\u4ea7\u751f\u7c98\u8fde\u4ee5\u53ca\u6c34\u6ef4\u91cd\u5408\u65f6\u4f1a\u653e\u5927\uff0c\u539f\u7406\u662f\u5229\u7528\u4e86\u6a21\u7cca\u7684\u53e0\u52a0\u4ee5\u53ca\u9510\u5316\uff0c\u5f88\u6709\u521b\u610f\u7684\u601d\u8def\u3002<\/p>\n<p>HTML\u90e8\u5206<\/p>\n\n\n\n<pre><span>&lt;div class=\"loader\"&gt;<\/span>\n<span>    &lt;span style=\"--i:1\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:2\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:3\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:4\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:5\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:6\"&gt;&lt;\/span&gt;<\/span>\n<span>    &lt;span style=\"--i:7\"&gt;&lt;\/span&gt;<\/span>\n<span>&lt;\/div&gt;<\/span>\n<span><\/span>\n<span>&lt;svg&gt;<\/span>\n<span>    &lt;filter id=\"gooey\"&gt;<\/span>\n<span>        &lt;feGaussianBlur in=\"SourceGraphic\" stdDeviation=\"10\"\/&gt;<\/span>\n<span>        &lt;feColorMatrix values=\"<\/span>\n<span>            1 0 0 0 0<\/span>\n<span>            0 1 0 0 0<\/span>\n<span>            0 0 1 0 0<\/span>\n<span>            0 0 0 20 -10<\/span>\n<span>        \"\/&gt;<\/span>\n<span>    &lt;\/filter&gt;<\/span>\n<span>&lt;\/svg&gt;<\/span>\n<\/pre>\n\n\n\n<p>CSS\u90e8\u5206<\/p>\n\n\n\n<pre><span>.loader{<\/span>\n<span>    position: relative;<\/span>\n<span>    width: 200px;<\/span>\n<span>    height: 200px;<\/span>\n<span>    filter: url(#gooey);<\/span>\n<span>}<\/span>\n<span>.loader span{<\/span>\n<span>    position: absolute;<\/span>\n<span>    top: 0;<\/span>\n<span>    left: 0;<\/span>\n<span>    width: 100%;<\/span>\n<span>    height: 100%;<\/span>\n<span>    display: block;<\/span>\n<span>    animation: spin 4s ease-in-out infinite;<\/span>\n<span>    animation-delay: calc(0.2s * var(--i));<\/span>\n<span>}<\/span>\n<span>.loader span:before{<\/span>\n<span>    content: '';<\/span>\n<span>    position: absolute;<\/span>\n<span>    top: 0;<\/span>\n<span>    left: calc(50% - 20px);<\/span>\n<span>    width: 40px;<\/span>\n<span>    height: 40px;<\/span>\n<span>    background: linear-gradient(#fce4ec,#03a9f4);<\/span>\n<span>    border-radius: 50%;<\/span>\n<span>    box-shadow: 0 0 30px #03a9f4;<\/span>\n<span>}<\/span>\n<span>@keyframes spin{<\/span>\n<span>    0%{<\/span>\n<span>        transform: rotate(0deg);<\/span>\n<span>    }<\/span>\n<span>    50%,100%{<\/span>\n<span>        transform: rotate(360deg);<\/span>\n<span>    }<\/span>\n<span>}<\/span>\n<\/pre>\n\n\n\n<p>\u6700\u540e\u5f97\u5230\u7684\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-2775 aligncenter\" src=\"http:\/\/www.yumefx.com\/wp-content\/uploads\/2021\/03\/svgFilter_01.gif\" alt=\"\" width=\"460\" height=\"331\" \/><\/p>\n<p>\u00a0<\/p>\n<p>\u8bf4\u5b9e\u8bdd\uff0c\u5c31\u662f\u56e0\u4e3a\u8fd9\u4e2a\u6c34\u6ef4\u6848\u4f8b\uff0c\u5bf9SVG\u8fc7\u6ee4\u5668\u4ea7\u751f\u5174\u8da3\uff0c\u7814\u7a76\u4e86\u4e0b\u6709\u6240\u6536\u83b7\u4e5f\u5c31\u6709\u4e86\u8fd9\u7bc7\u6587\u7ae0\u3002\u6ca1\u9519\uff0c\u4e3a\u4e86\u8fd9\u70b9\u918b\uff0c\u624d\u5305\u4e86\u8fd9\u987f\u997a\u5b50\uff0c\u54c8\u54c8\u54c8\u3002<\/p>\n<p>\u00a0<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u79bb\u7fa4\u7d22\u5c45\u8005\uff0c<br \/>\u4e0d\u662f\u795e\u7075\uff0c\u5c31\u662f\u91ce\u517d\u3002<\/p>\n<p style=\"text-align: right;\">\u300a\u653f\u6cbb\u5b66\u300b<br \/>\u2014\u2014\u4e9a\u91cc\u58eb\u591a\u5fb7<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 SVG(Scalable Vector Graphics)\u610f\u4e3a\u53ef\u7f29\u653e\u77e2\u91cf\u56fe\u5f62\uff0c\u901a\u8fc7XML\u683c\u5f0f\u5b9a\u4e49\u56fe\u50cf\uff0c\u5728 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2792,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18,4],"tags":[35,34,14],"_links":{"self":[{"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/posts\/2772"}],"collection":[{"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2772"}],"version-history":[{"count":0,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/posts\/2772\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=\/wp\/v2\/media\/2792"}],"wp:attachment":[{"href":"https:\/\/www.yumefx.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yumefx.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}