Autodesk AUTOCAD 2006, Command Reference Manual, Page: 49 / 1490

Number of Tessellations to Cache
Configures your system according to memory and performance
requirements. A cache is a special memory subsystem that stores frequently
accessed information. The 3D cache always stores at least one tessellation.
When the number of tessellations to cache is set to 1, the tessellation for
all viewports is the same and may cause some objects in the drawing to be
regenerated as you zoom in and out.
Setting the number of tessellations to cache to 2 or more is useful when
you have more than one viewport with different views. Increasing the
number requires more memory.
Render Options
Makes settings available for enhancing the display of lights, materials, textures,
and transparency in 3D views. This includes objects in the 3D Orbit view and
objects shaded using the SHADEMODE command.
Configure: Render options
Enter mode [ON/OFF] <ON>: Specify whether you want to turn on render options
Configure: Render options
Enter option [Lights/Materials/Backgrounds/eXit] <Lights>: Specify whether you
want to configure lights, materials, or backgrounds
Configure: Lights
Enter mode [ON/OFF] <ON>: Specify whether you want lights turned on or off
Configure: Materials
Enter mode [ON/OFF] <ON>: Specify whether you want materials turned on or off
Configure: Backgrounds
Enter mode [ON/OFF] <ON>: Specify whether you want backgrounds turned on or
off
If Render Options is turned on, you can specify if you want lights, materials,
and backgrounds turned on or off.
Lights
In 3D views, illuminates objects and attached materials by lights that were
defined with the LIGHT command. If this option is not selected, or if the
LIGHT command has not been used for the drawing, then the default
lighting for 3D views is used.
Materials
In 3D views, displays materials for objects that have materials that were
attached using the RMAT command. If the object has no attached material,
the default global material is used. If this option is not selected, or if the
RMAT command has not been used in the drawing, then no materials are
displayed.
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