Options dialog-Viewer tab
The Viewer tab of the Options dialog is used to specify the proportion that the model display is changed, per increment, when you rotate, scale, or pan the model. You can also specify lighting and Open GL Options.
Dialog elements
Incremental changes
Specify the incremental change that occurs whenever you rotate, scale, or pan the model.
Rotation angles (degrees) Enter a value between 0 and 360 to specify the degrees by which you can rotate your model incrementally.
Scale factor (0-1) Enter a value between 0 and 1 to specify the factor by which you can scale your model incrementally.
Pan factor Enter a value between 0 and 1 to specify the factor by which you can pan through your view incrementally.
Lighting
Customize the angle and intensity of light falling on the model display.
Light shading Use the slider to set the angle of light falling on the model, which increases or decreases the 3D effect of the lighting, and to set the intensity of the light.
OpenGL
Specifies whether OpenGL graphics render on-screen or off-screen.
Off-screen rendering uses the OpenGL specification for displaying on a memory buffer before copying to the screen. This allows a significant performance increase compared to on-screen rendering that requires graphics card optimization.
Use offscreen rendering Clear this check box if you are experiencing problems when performing screen captures, creating reports or animations and when printing screen images.
Perspective
Specify the default display perspective when a new study is created.
Use perspective mode for new windows Turns the display perspective on every time you create a new study.
Display perspective can be deselected at any time by clicking Perspective in the Viewer toolbar.