Change here the attenuation parameters of the light (or list of lights,
previously selected with Light->Select, when
Global is pressed).
Parameters for empty entries or
Local choices remain unchanged.
Axial
Change the
Constant,
Linear,
Quadratic parameters
that control the axial attenuation. This is defined only for positional
and spot lights. The axial attenuation factor is given by:
Axial Attenuation Factor = 1/(constant + linear*distance + quadratic*distance*distance)
Radial
Change the radial attenuation, defined only for spot
lights. The radial attenuation factor is given by:
Radial Attenuation Factor = [max (0, vertex . direction)]**radial