specularConstant

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The specularConstant attribute controls the ratio of reflection of the specular lighting. It represents the ks value in the Phong lighting model. The bigger the value the stronger the reflection.

Only one element is using this attribute: <feSpecularLighting>

<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="specularLighting1" x="0" y="0" width="100%" height="100%">
    <feSpecularLighting in="SourceGraphic" specularConstant="1.2">
      <fePointLight x="60" y="60" z="20" />
    </feSpecularLighting>
  </filter>
  <filter id="specularLighting2" x="0" y="0" width="100%" height="100%">
    <feSpecularLighting in="SourceGraphic" specularConstant="0.8">
      <fePointLight x="60" y="60" z="20" />
    </feSpecularLighting>
  </filter>

  <rect x="0" y="0" width="200" height="200" style="filter: url(#specularLighting1);" />
  <rect x="0" y="0" width="200" height="200"
      style="filter: url(#specularLighting2); transform: translateX(220px);" />
</svg>

Usage notes

Value <number>
Default value 1
Animatable Yes

Specifications

Specification Status Comment
Filter Effects Module Level 1
The definition of 'specularConstant' in that specification.
Working Draft No change
Scalable Vector Graphics (SVG) 1.1 (Second Edition)
The definition of 'specularConstant' in that specification.
Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
specularConstantChrome Full support YesEdge Full support YesFirefox Full support 4IE Full support YesOpera Full support 9Safari ? WebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android Full support Yes

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also