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surfaceScale

The surfaceScale attribute represents the height of the surface for a light filter primitive.

You can use this attribute with the following SVG elements:

Example

<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="diffuseLighting1" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting in="SourceGraphic" surfaceScale="1">
      <fePointLight x="60" y="60" z="20" />
    </feDiffuseLighting>
  </filter>
  <filter id="diffuseLighting2" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting in="SourceGraphic" surfaceScale="15">
      <fePointLight x="60" y="60" z="20" />
    </feDiffuseLighting>
  </filter>

  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    style="filter: url(#diffuseLighting1);" />
  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    style="filter: url(#diffuseLighting2); transform: translateX(220px);" />
</svg>

feSpecularLighting

For <feSpecularLighting>, surfaceScale defines the height of the surface.

Value <number>
Default value 1
Animatable Yes

feDiffuseLighting

For <feDiffuseLighting>, surfaceScale defines the height of the surface.

Value <number>
Default value 1
Animatable Yes

Specifications

Specification
Filter Effects Module Level 1
# element-attrdef-fediffuselighting-surfacescale
Filter Effects Module Level 1
# element-attrdef-fespecularlighting-surfacescale

See also

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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/surfaceScale