The attenuation method of the light. When enabled, attenuationRadius is used. When disabled, falloffExponent is used. Also changes the interpretation of the intensity property, see intensity for details.
Controls the radial falloff of the light when hasNaturalFalloff is false. 2.0 is almost linear and very unrealistic and around 8.0 it looks reasonable. With large exponents, the light has contribution to only a small area of its influence radius but still costs the same as low exponents.