Sets the falloff rate for pointLight() and spotLight().
A light’s falloff describes the intensity of its beam at a distance. For example, a lantern has a slow falloff, a flashlight has a medium falloff, and a laser pointer has a sharp falloff.
lightFalloff() has three parameters, constant, linear, and quadratic. They’re numbers used to calculate falloff at a distance, d, as follows:
falloff = 1 / (constant + d * linear + (d * d) * quadratic)
Note: constant, linear, and quadratic should always be set to values greater than 0.
Examples
Syntax
lightFalloff(constant, linear, quadratic)Parameters
constant
constant value for calculating falloff.
linear
linear value for calculating falloff.
quadratic
quadratic value for calculating falloff.
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