2009

Left: With Spotlight distribution, the projection cone can truncate shadows.
Right: With Uniform Spherical distribution, the light casts complete shadows.
To have a light use the global settings for shadows:
On the General Parameters rollout, in the Shadow Parameters group, turn
on Use Global Settings.
When Use Global Settings is on, the other shadow controls are set to the
values used by all other shadow-casting lights in the scene that have Use
Global Settings set.
Changing the affected parameters for one light with Use Global Settings
set, changes them for all lights with Use Global Settings set.
To set a light's shadow parameters individually:
On the General Parameters rollout, turn off Use Global Settings.
The settings revert to the individual settings for the light.
By default, Shadow Map is the active shadow type. In the
Shadow Map
Params rollout
on page 5135, the default settings are: Map Bias=1; Size=512;
Sample Range=4.0; Absolute Map Bias=Off.
5020 | Chapter 18 Lights and Cameras