2011

Table Of Contents
when LIGHTINGUNITS is set to 1 (American units) or 2 (International SI units)
for photometric lighting:
Lamp Intensity. Specifies the inherent brightness of the light. Specifies the
intensity, flux, or illuminance of the lamp.
Resulting Intensity. Gives the final brightness of the light. (Product of lamp
intensity and intensity factor. Read-only.)
Lamp Color. Specifies the inherent color of the light in Kelvin temperature
or standard.
Resulting Color. Gives the final color of the light. This is determined by a
combination of the lamp color and the filter color. (Product of lamp color
and filter color. Read-only.)
NOTE When the drawing lighting units are photometric, the attenuation type
property becomes disabled. Photometric lights have fixed, inverse-square
attenuation. The hotspot falloff attenuation in the rendered image varies from
standard lighting, as it uses a different mathematical basis.
The additional information about these properties are available under Lighting
Properties.
Quick Reference
Commands
FREESPOT
Creates free spotlight which is similar to a spotlight without a specified target.
LIGHT
Creates a light.
SPOTLIGHT
Creates a spotlight that emits a directional cone of light.
System Variables
DEFAULTLIGHTING
Turns on and off default lighting in place of other lighting.
966 | Chapter 36 Add Lighting to Your Model