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1286 Chapter 15: Lights and Cameras
Refresh—
Updates the list of lights to use the
curren t 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 sett ings
affect all lights in the scene (subject to the
150-light restriction, 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 Light ing
Parameters (page 2–1331) for standard lights.
Co lor—By defa ult, the color of all standard lights
is white. Click to display the ColorSelector(page
1–161) and change the light color for affected
lights.
Wa rning: For photometr ic lights, th is changes the filter
color, not the color temperature.
Shadows—
When on, affected lights cast shadows.
Whenoff,theydon’tcastshadows.
Sha dow t y p e dr op-down l i st —Selects the shadow
type for affected lights.
Map Size—Sets the size (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 2–1363) and Ray-Traced Shadow Parameters
(page 2–1363).
Sm. R ange (Sample R ange)—For shadow-mapped
shadows, sets the Sample Range value. See Shadow
Map Parameters (page 2–1363).Thisvaluehasno
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 . (Int egr it y )—Fo r advanced ray-traced shadows
or area shadows, sets the Shadow Integrity. See
Advanced Ray-Traced Parameters Rollout (page
2–1356) or Area Shadows Rollout (page 2–1357).
Qual. (Quality)—For advanced ra y-traced shadows
or area shadows, sets the Shadow Quality. See
Advanced Ray-Traced Parameters Rollout (page
2–1356) or Area Shadows Rollout (page 2–1357).
Decay—(For standard lig hts.) Sets t he typ e of
decay:None,Inverse,orInverseSquare. See
In tensity/Color/Attenuation Par ameters (page
2–1345).
Start—(For standard lig hts.) Sets the start
range for decay. See Intensity/Color/A ttenuation
Parameters (page 2–1345).
Lengt h—(For photometric lights.) Sets the Length
value for Linear and Area lig hts. See Linear Light
Parameters Rollout (page 2–1354) or Area Light
Parameters Rollout (page 2–1354) .
Width—(For photometric lights.) Sets the Width
value for Area lights. See Area Light Par ameters
Rollout (page 2–1354).
Global Ti nt—Adds a color tint to all lights in the
scene except ambient light. Click to use the Color
Selector (page 1–161). The tint is in addition to the