diffuseConstant

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨January 2020⁩.

ThediffuseConstant attribute represents the k_d value in thePhong lighting model. In SVG, this can be any non-negative number.

It's used to determine the final RGB value of a given pixel. The brighter the lighting-color, the smaller this number should be.

You can use this attribute with the following SVG elements:

<feDiffuseLighting>

Example

html,body,svg {  height: 100%;}

html

<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">  <filter x="0" y="0" width="100%" height="100%">    <feDiffuseLighting in="SourceGraphic" diffuseConstant="1">      <fePointLight x="60" y="60" z="20" />    </feDiffuseLighting>  </filter>  <filter x="0" y="0" width="100%" height="100%">    <feDiffuseLighting in="SourceGraphic" diffuseConstant="2">      <fePointLight x="60" y="60" z="20" />    </feDiffuseLighting>  </filter>  <rect x="0" y="0" width="200" height="200" filter="url(#diffuseLighting1)" />  <rect    x="220"    y="0"    width="200"    height="200"    filter="url(#diffuseLighting2)" /></svg>