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The limitingConeAngle attribute represents the angle in degrees between the spot light axis (i.e. the axis between the light source and the point to which it is pointing at) and the spot light cone. So it defines a limiting cone which restricts the region where the light is projected. No light is projected outside the cone.

Only one element is using this attribute: <feSpotLight>

<svg viewBox="0 0 480 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="spotLight1" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting diffuseConstant="2">
      <feSpotLight x="10" y="10" z="50" pointsAtX="100" pointsAtY="100" limitingConeAngle="10" />
    </feDiffuseLighting>
  </filter>
  <filter id="spotLight2" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting diffuseConstant="2">
      <feSpotLight x="10" y="10" z="50" pointsAtX="100" pointsAtY="100" limitingConeAngle="40" />
    </feDiffuseLighting>
  </filter>

  <rect x="0" y="0" width="200" height="200" style="filter: url(#spotLight1);" />
  <rect x="0" y="0" width="200" height="200" style="filter: url(#spotLight2); transform: translateX(220px);" />
</svg>

Usage notes

Value <number>
Default value 0
Animatable Yes

Specifications

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

Browser compatibility

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

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

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