8

1140 Chapter 15: Lights and Cameras
Refresh—
Updates the list of lights to use the
current light selection (if Selected Lights is active)
and current scene settings.
Note: When the Light Lister needs to be updated,
the Refresh button is high lighted in yellow.
General Settings rollout
These controls are for general lighting settings.
•
Selected Lights—When chosen, general settings
affect only selected lights.
•
All Lights—When chosen, general settings
affect all lights in the scene (subject to the
150-light restrict ion, described above).
On—When on, affected lights are active in the
scene. When off, affected lights go dark in the
viewports and renderings.
Multiplier—Increases or decreases the light
intensity of standard lights. See
General Lighting
Parameters (page 2–1175)
for standard lights.
Co lor—By default, the color of all standard lights
is white. Click to display the
Color Selector (page
1–157)
and change the light color for affected
lights.
Wa rn in g : For photometric lights, this changes the filter
color,
not the color temperature.
Shadows—
When on, affected lights cast shadows.
Whenoff,theydon’tcastshadows.
Sha dow ty pe dr op-down l is t—Selects the shadow
type for affected lights.
Map Size—Sets the s ize (in pixels squared) of the
shadow map used by affected lights.
Bias—Setting depends on which shadow type is
selected. In general, bias moves the shadow toward
or away from the shadow-casting object. For
specific effects, see
Shadow Map Parameters (page
2–1208)
and Ray-Traced Shadow Parameters
(page 2–1207)
.
Sm. Range (Sample Range)—For shadow-mapped
shadows, sets the Sample Range value. See
Shadow
Map Parameters (page 2–1208)
. This value has no
effectforray-tracedorareashadows.
Transp. ( Transparency)— When on, turns on
transparency for advanced ray-traced and area
shadows. Has no effect on shadow-mapped or
standard ray-traced shadows. Default=off.
Int . (I ntegr i ty )—For advanced ray-traced shadows
or area shadows, sets the Shadow Integrity. See
Advanced Ray-Traced Parameters Rollout (page
2–1200)
or Area Shadows Rollout (page 2–1202) .
Qual. (Quality)—For advanced ray-traced shadows
or area shadows, sets the Shadow Quality. S ee
Advanced Ray-Traced Parameters Rollout (page
2–1200)
or Area Shadows Rollout (page 2–1202) .
Decay—(For standard lights.) Sets the typ e of
decay:None,Inverse,orInverseSquare. See
Intensity/Color/Attenuation Parameters (page
2–1190)
.
Start—(For standard lights.) Sets the start range
for decay. See
Intensity/Color/Attenuation
Parameters (page 2–1190)
.
Lengt h—(For photometric lights.) Sets the Length
value for Linear and Area lights. See
Linear Light
Parameters Rollout (page 2–1198)
or Area Light
Parameters Rollout (page 2–1198)
.
Width—(For photometric lights.) Sets the Width
value for Area lights. See
Area Light Parameters
Rollout (page 2–1198)
.
Global Ti nt—Adds a color tint to all lights in the
scene except ambient light. Click to use the
Color
Selector (page 1–157)
.Thetintisinadditiontothe