Game Development Reference
In-Depth Information
The
spotInnerAngle
and
spotOuterAngle
parameters define the size of the light
cone that spotlight produces and both are set in radians. The
spotInnerAngle
para-
meter defines how far out the cone will shine at its maximum radiance. The
spotOuterAngle
parameter then defines how far the total extent of the radiance
should be before it's been completely extinguished. Having a greater value for the
spotOuterAngle
parameter will produce a softer edge on the spotlight. A spotlight
with a small
spotInnerAngle
parameter and a high
spotOuterAngle
parameter
will have softer edges, as shown in the following image:
