diffuseConstant
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 diffuseConstant
attribute represents the kd value in the Phong lighting model. In SVG, this can be any non-negative number.
It's used to determine the final RGB value of a given pixel. The brighter the lighting-color, the smaller this number should be.
You can use this attribute with the following SVG elements:
Example
html
<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" diffuseConstant="1">
<fePointLight x="60" y="60" z="20" />
</feDiffuseLighting>
</filter>
<filter id="diffuseLighting2" x="0" y="0" width="100%" height="100%">
<feDiffuseLighting in="SourceGraphic" diffuseConstant="2">
<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>
Usage notes
Value | <number> |
---|---|
Default value | 1 |
Animatable | Yes |
Specifications
Specification |
---|
Filter Effects Module Level 1 # element-attrdef-fediffuselighting-diffuseconstant |
Browser compatibility
BCD tables only load in the browser