2004

148 | Chapter 12 Specify a 3D View
Set 3D Graphics Display Options (3D Orbit)
Graphics configuration settings affect the way that 3D objects are displayed;
for example, the shading of 3D objects and the way graphics are displayed
when the
3DORBIT command is active. You set these options using the 3D
Graphics System Configuration dialog box. These settings do not affect how
objects are rendered.
AutoCAD uses the Heidi
®
3D Graphics System developed by Autodesk as the
default graphics system. If you want to use a different graphics system, install
it according to your display card’s vendor documentation.
Set Lights and Materials (3D Orbit)
You can adjust how lights, materials, textures, and transparency are
displayed in 3D views by changing the settings in the 3D Graphics System
Configuration dialog box. You can display the 3D Graphics System Configu-
ration dialog box from the Options dialog box by selecting the System tab
and then selecting Current 3D Graphics Display Properties. These settings
affect objects in the 3D Orbit view and objects shaded using
SHADEMODE.
You have several options:
■ Enable Lights. Controls the illumination, as defined by LIGHT. For more
information, refer to “Enable Lights” in
OPTIONS.
■ Enable Materials. Controls the materials attached using RMAT. For more
information, refer to “Enable Materials” in
OPTIONS.
■ Enable Textures. Controls textured materials attached using RMAT and
SETUV. For more information, refer to “Enable Textures” in OPTIONS.
■ Transparency. Controls image quality at the expense of drawing speed.
For more information, refer to “Transparency” in
OPTIONS.
For more information about lights, see “Use Lights in Rendering” on page
1710.
The display of lights in 3D Orbit and objects that are shaded using
SHADEMODE is subject to the following limitation:
■ Shadows are not shown.