Specifies the angle in degrees between the spot light axis and the spot light cone.
Specifies the x location at which the light source is pointing.
Specifies the y location at which the light source is pointing.
Specifies the z location at which the light source is pointing.
Specifies the exponent value controlling the focus for the light source.
Specifies the x location for the light source.
Specifies the y location for the light source.
Specifies the z location for the light source.