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z attribute difine the location along the Z-axis for a light source in the coordinate system established by the
primitiveUnits attribute on the
<filter> element, assuming that, in the initial coordinate system, the positive Z-axis comes out towards the person viewing the content and assuming that one unit along the Z-axis equals on unit in X and Z.
If the attribute is not specified, then the effect is as if a value of 0 were specified.
|Normative document||SVG 1.1 (2nd Edition) : fePointLight
SVG 1.1 (2nd Edition) : feSpotLight
The following elements can use the