Light Modify

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
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