Performance Tuning
 
 
 
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Performance tuning examines your graphics card and 3D display driver and determines whether to use software or hardware implementation for features that support both.

Features that cannot work properly on your system are turned off. Some features may work but not be recommended for use with your graphics card or 3D graphics display driver. Enable these features at your own risk.

NoteIf you are using a graphics card that does not support all of the available hardware effects, you can plot a drawing through software emulation. (To enable the emulation of hardware effects in software, enter 3dconfig at the Command prompt. In the Adaptive Degradation and Performance Tuning dialog box, click Manual Tune. Then click Emulate Unsupported Hardware Effects in Software When Plotting.)

The performance tuner creates a log that reports the graphics card and 3D display driver found on your system and whether effects are enabled. The Current Effects Status section displays the settings of the current display driver. An example of the Current Effects Status section might look like the following:

Enhanced 3D Performance: Available and on
Smooth display: Available and off
Gooch shader: Available and using hardware
Per-pixel lighting: Available and off
Full-shadow display: Available and off
Texture compression: Available and off
Advanced material effects: Available and off

You can manually turn on and off features that your system supports, recommended or not.

The log that is created by the performance tuner not only displays information about the current application driver, but also displays information about all the available application drivers and which effects are supported. This information is in the Available Application Drivers and Effect Support section. By using the information that is displayed, you can make the best decision about which application driver to use for your graphics card or the Software driver. The Available Application Drivers and Effect Support section might look like the following:

Software driver
Effect support:
Enhanced 3D Performance: Not applicable
Smooth display: Not applicable
Gooch shader: Software emulation only
Per-pixel lighting: Not applicable
Full-shadow display: Not applicable
Texture compression: Not applicable
Advanced material effects: Not applicable
Autodesk driver:    Certified
Effect support:
Enhanced 3D Performance: Available
Smooth display: Available
Gooch shader: Available
Per-pixel lighting: Available
Full-shadow display: Available
Texture compression: Available
Advanced material effects: Available
NoteTo display mapped object shadows in viewports and to use per-pixel lighting, hardware acceleration is required. When Enhanced 3D Performance is off, mapped object shadows cannot be displayed in viewports. (To access these settings, enter graphicsconfig at the Command prompt.)
NoteWhen Texture Compression is turned on, the amount of video memory required to open a drawing that contains materials with images or has attached images is decreased. By using the effect it can reduce the amount of video memory necessary to display the drawing, but the downside to this effect is it may increase the time it takes to load the images the first time that they are accessed. Also, there is a reduction in the quality of the images when they are displayed in the viewport or plotted. (To access these settings, enter graphicsconfig at the Command prompt.)

Certification Updates

As more graphics cards and 3D display drivers are tested, they are added to a list on the Autodesk website. You can check for updates and download the latest list at any time. In the Adaptive Degradation and Performance Tuning dialog box, click Check for Updates.

Procedure
To view the performance tuner log
To tune performance manually
To check for graphics card and driver certification updates
Quick Reference
Commands
System Variables