Graphics Programs Reference
In-Depth Information
A variety of lights of different types in which lights of a selected wattage
which can be placed in a lighting scene are available from the
Tool
Palettes - All Palettes
palette. These are shown in Fig. 15.14.
The set variable
LIGHTINGUNITS
must be set to
1
or
2
for these lights
to function. To set this variable:
Command: enter lightingunits right-click
Enter new value for LIGHTINGUNITS <2>:
Settings are:
0:
No lighting units are used and standard (generic) lighting is enabled.
1:
American lighting units (foot-candles) are used and photometric
lighting is enabled.
2:
International lighting units (lux) are used and photometric lighting is
enabled.
Note :
In the previous examples of rendering,
Generic lighting
was
chosen.
Placing lights to illuminate a 3D model
In this topic examples of lighting methods shown in examples will only
be concerned with the use of
Point
,
Direct
and
Spot
lights, together with
Default lighting
, except for the example given on page 315, associated
with using a camera.
Fig. 15.14
The Lighting tool palettes
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