"<feSpecularLighting>"

Lights an image using the alpha channel as a bump map, computing the specular component of the Phong lighting model.

• DOM object: SVGFESpecularLightingElement
• SVG2 spec: https://www.w3.org/TR/filter-effects/#feSpecularLightingElement

This element is defined within a "<filter>" element, and must contain exactly one light source child element ("<feDistantLight>", "<fePointLight>", or "<feSpotLight>").

Example usage:

<filter id="MyFilter">
  <feSpecularLighting surfaceScale="5" specularConstant="1" specularExponent="20">
    <feDistantLight azimuth="45" elevation="55" />
  </feSpecularLighting>
</filter>