Light Scale TImeline

The Light Scale Timeline controls how a selected Spotlight cone and shadow will change size from keyframe to keyframe.

Cone Angle - Defines the angle of the main beam in degrees. A maximum value of 179 is permitted which illuminates the whole region in front of the light. A value of 5 creates a highly focused spotlight beam..

Edge Softness Angle - Defines the angle of an edge or border of shadow lying around the main beam over which the light intensity falls from full to zero. A value of 5 degrees is a default and will give a realistic "soft shadow" edge.

Attenuation Range 50% - Defines the distance from the attenuated light at which its intensity has fallen to half its given value. The circle around the light (only visible if the Attenuated check box is checked in the Light Settings dialog) shows the location at which the light intensity has fallen to half its given value.