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