2009

■ If you do need to move a target spotlight, link both the light and its target
to a
dummy object on page 2615, then assign the path constraint to the
dummy object.
■ Use a
LookAt Constraint on page 3312 to have a spotlight track a moving
object.
If the spotlight is a target spotlight, its previous target is ignored.
If the spotlight is a free spotlight, it effectively becomes a target spotlight,
with the looked-at object the target.
■ Change the parameters of a daylight system on page 5139 or sunlight system
to simulate different times of day or year.
Animating Light Creation Parameters
The following techniques can be used to animate Modify panel parameters
for lights.
■ To dim or brighten a light over time, animate its Multiplier parameter.
■ To dim or brighten a standard light over time, animate its Multiplier value
or Filter Color parameter.
■ To change the color of a light over time, animate its color parameters. Use
a
smooth tangent on page 3129 for color change keys unless you want the
color to change abruptly.
■ To make a standard light flash on and off, set its Multiplier to 0 in repeated
keyframes, and assign a step tangent on page 3129 to this parameter.
Light Include/Exclude Tool
By default, the Light Include/Exclude tool is unavailable in the 3ds Max user
interface. You can add it as a custom keyboard shortcut, quad or menu item,
or toolbar button by using the
Customize User Interface dialog on page 7697.
The Light Include/Exclude tool is a modeless dialog that lets you include or
exclude objects on a light-by-light basis. When excluded, an object is not
illuminated by the selected light and receives no shadows.
This dialog requires at least one light object in your scene. For a selected light,
this dialog is a shortcut to the same functionality available on the
Exclude/Include dialog on page 5096.
Using Lights | 4997