feDiffuseLighting
Description
The feDiffuseLighting element for SVG specifies lighting an image using the alpha channel as a bump map.
The resulting image is an RGBA opaque image based on the light color with alpha = 1.0 everywhere. The lighting calculation follows the standard diffuse component of the Phong lighting model. The resulting image depends on the light color, light position and surface geometry of the input bump map.
Syntax
Attributes
diffuseConstant
Specifies kd in the Phong lighting model.
This can be any non-negative number.
Value
<number>
Default
1
in
Specifies the input for the filter primitive.
If no value is provided and this is the first filter primitive, then this filter primitive will use SourceGraphic as its input. If no value is provided and this is a subsequent filter primitive, then this filter primitive will use the result from the previous filter primitive as its input.
Value
SourceGraphic | SourceAlpha | BackgroundImage | BackgroundAlpha | FillPaint | StrokePaint | <filter-primitive-reference>
Default
SourceGraphic (or result)
surfaceScale
Specifies the height of the surface.
Value
<number>
Default
1