MDN will be in maintenance mode on Thursday September 21st, starting at 10 AM Pacific / 5 PM UTC, for about 1 hour.

我們的志工尚未將本文翻譯為 正體中文 (繁體) 版本。加入我們,幫忙翻譯!
您也可以閱讀本文的 English (US) 版本。

« SVG Attribute reference home

the preserveAlpha attribute indicates how a <feconvolvematrix> element handled alpha transparency.

A value of false indicates that the convolution matrix will apply to all channels, including the alpha channel. This is the default value.

A value of true indicates that the convolution matrix will only apply to the color channels.

Usage context

Categories None
Value true | false
Animatable Yes
Normative document SVG 1.1 (2nd Edition)



The following elements can use the preserveAlpha attribute


 此頁面的貢獻者: Jeremie
 最近更新: Jeremie,