2011

Table Of Contents
strong as at the point light; at a distance of 4 units, light is one quarter
as strong. The default value for inverse linear is half the maximum
intensity.
Inverse Square. Sets attenuation to be the inverse of the square of the
distance from the light. For example, at a distance of 2 units, light is
one quarter as strong as at the point light; at a distance of 4 units,
light is one sixteenth as strong.
5 If you set Use Limits to Yes, enter the following values in the properties
palette or use the grip tool in the drawing to set the limits:
Start Limit Offset. Specifies the point where light starts as an offset
from the center of the light. The default is 0.
End Limit Offset. Specifies the point where light ends as an offset from
the center of the light. No light is cast beyond this point.
To specify a source vector for a distant light
1 Click Render tab Lights panel Lighting Units drop-down
Generic Lighing Units.
No lighting units are used and standard (generic) lighting is enabled.
NOTE Alternatively, you can enter lightingunits at the command prompt
and set the value to 0 for standard (generic) lighting.
2 Click Render tab Lights panel Lights In Model.
3 In the Lights in Model palette, select the distant light.
4 Click View tab Palettes panel Properties.
5 In the Properties palette, under Geometry, use one of the following
methods to change a value:
Enter a value in a cell.
Click the Calculator button to use QuickCalc.
Control Light Properties | 2053