feSpotLight filter
parameters:
- x = X location for the light source in the
coordinate system
- y = Y location for the light source in the
coordinate system
z = Z location for the light source in the
coordinate system
- pointsAtX =X location of the point at which the
light source is pointing.
pointsAtY =Y location of the point at which the
light source is pointing.
pointsAtZ =Z location of the point at which the
light source is pointing.
- specularExponent =Exponent value controlling the
focus for the light source. ( 1 by default )
limitingConeAngle =A limiting cone which restricts
the region where the light is projected. Angle in degrees.
Tool:
you can modify all parameters and see picture lighted with feSpecularLightning