LUMIPro 2017 - Falloff: 0

LUMIPro 2017
14
Lighting - Fallo
In the real world, light follows what’s called the Inverse Square Law—the intensity is inversely proportional to the square of the distance from the source. What that means in English is
that when your model is twice the distance from a light source, they will receive only 1/4 of the illumination; at three times the distance, they’ll receive 1/9th the illumination, and at four
times the distance, only 1/16 as much light. is is called “fallo.” In SL, just like your belly size, Fallo can be controlled with the ick of a slider. e images below show the model in the
center of 3 circles: the outer with a radius of 3m, the middle at 2m, and the inner at 1m. e red ball on the le is the light source, set to illuminate a radius of 5m, and the other balls are
there so you can see the extent of illumination based on the Fallo setting.
At a Fallo setting of 0, SL light pretty much obeys the laws of physics. You can see at the source, the light is very bright. By the time it’s traveled 3 meters, it’s lost most of its intensity. In
the second picture, with the fallo at 1.5, the light is barely illuminating the ball on the 1m ring. At a Fallo setting of 2.0, the light barely illuminates the ball on the 2m ring. Used in con-
junction with Intensity and Radius, you have a great deal of control on the light reaching your model.
Intensity: 1.0
Radius: 5.0
Fallo: 0
Intensity: 1.0
Radius: 5.0
Fallo: 1.5