Change here the attenuation parameters for a single light or a list of lights.
To modify a light, click over the graphic area to open a menu and choose a light,
or write its identification (name and number) on the
Light entry. To modify
a list of lights, press the button
List (after creating the list of lights
with
Light->Select). Parameters for empty entries or
Local choices
remain unchanged.
To change a light name write the new name in the
Light entry,
followed by the light number (GAMGI needs the number to identify the light).
To change the name for a list of lights, press
List first
and then write the new common name in the
Name entry.
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