2012

NOTE Enhanced 3D performance effect must be turned on.
■ Texture compression. Enables the use of texture compression to reduce
the amount of video memory required to open and display a drawing that
contains materials with images or has attached images.
NOTE With this option turned on, the time it takes to load the images might
increase the first time that they are accessed, and there is a reduction in the
quality of the images when they are displayed in the viewport or plotted.
■ Enhanced 2D precision. Enables the Enhanced 2D precision effect. With
this option turned on, the precision artifacts that can be seen at extreme
zoom levels are removed.
NOTE This option is only available if you are working on a Windows Vista
platform. Turn on this option only if you experience problems with precision
because it will decrease the graphics card performance.
Emulate Unsupported Hardware Effects in Software When Plotting
Controls whether software emulation is used for unsupported hardware effects,
including plotting shaded viewports with shadows.
WARNING It is recommended that you not use any type of remote access
application, such as NetMeeting, Remote Desktop, or any windows emulating
software in conjunction with hardware acceleration. Most remote access
applications do not support hardware acceleration, and as a result, can cause
general display failure and instability. Prior to using a remote access application
with AutoCAD, check with the software vendor to see if it supports hardware
acceleration and if not, disable hardware acceleration prior to starting the remote
access software or use the /NOHARDWARE command line switch to start AutoCAD
in Software mode.
General Settings
Sets performance-related options that are not hardware dependent.
Discard Back Faces
When selected, the back faces of objects are not drawn.
Smooth Faces by Default
Smooths the facets in a polyface mesh object when displayed in the viewport
and in a rendering.
864 | Chapter 8 G Commands