SVGFESpecularLightingElement: specularConstant property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The specularConstant read-only property of the SVGFESpecularLightingElement interface reflects the specularConstant attribute of the given <feSpecularLighting> element.
Value
An SVGAnimatedNumber object.
Examples
Accessing the specularConstant Property
html
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="specularLightingFilter">
<!-- Applies specular lighting with a constant specular reflectance -->
<feSpecularLighting
in="SourceGraphic"
specularConstant="0.5"
lighting-color="hotpink">
<fePointLight x="50" y="50" z="30" />
</feSpecularLighting>
</filter>
</defs>
<rect
x="20"
y="20"
width="100"
height="100"
fill="lightblue"
filter="url(#specularLightingFilter)" />
</svg>
js
// Select the feSpecularLighting element
const specularLightingElement = document.querySelector("feSpecularLighting");
// Access the specularConstant property
console.log(specularLightingElement.specularConstant.baseVal); // Output: 0.5
Specifications
| Specification |
|---|
| Filter Effects Module Level 1 # dom-svgfespecularlightingelement-specularconstant |
Browser compatibility
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