General Options

Sets performance-related options that are not hardware dependent.

Discard Backfaces

Discards back faces when drawing objects. You cannot see the effect of discarding back faces on some objects, such as spheres, because you cannot see the back face even when it is present. The effect of discarding back faces is visible on objects such as those that don't have a top. Discarding back faces enhances performance.

Smooth Faces

Transparency Quality

Adjusts the transparency quality. At the Low setting, a screen-door effect achieves transparency without sacrificing speed. At the Medium setting, the default in software mode, blending improves image quality. The High setting, the default in hardware mode, produces an image free of visual artifacts at the cost of drawing speed.

Materials must also be turned on for transparency to be visible.

Exit

Ends the command.

Acceleration

Specifies whether to use software or hardware acceleration in 3D.

Hardware

Specifies hardware acceleration. The hardware graphics card performs most of the drawing tasks in 3D to increase performance.

The available drivers are AcadDM10.hdi and direct3d10.hdi.

When you select Hardware, the default driver is set to the AcadDM10.hdi driver that is included with the program.

• Driver Name. You can select a driver from a list of available hardware-accelerated drivers found in the Drv directory. If you want to use a hardware driver from another vendor, it must be supported by the Heidi^® Graphics System.

  For more information, see Hardware Acceleration Troubleshooting in the Driver and Peripheral Guide.

• Enhanced 3D Performance.
• Gooch Hardware Shader.
• Global Smooth Display.
• Advanced Material Effects.
• Per-pixel Lighting. Enables the computation of colors for individual pixels. With this option on the 3D objects and lighting effects appear smoother in the viewport.
• Full Shadow Display. Enables the display of full shadows.
• 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.
  NoteWith this option on, the time it takes to load the images may 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 Performance.

Software

Specifies software acceleration. The software graphics system performs all of the drawing tasks in 3D.

Exit

Ends the command.