Autodesk 12812-051462-9011 User Guide 3 - Page 2576

Degrade to Default Lighting When on, improves performance by turning off all viewport lights and enabling default lighting during degradation. Never Redraw After Degrade When off, viewport display will restore as frame rate improves, redrawing all degraded objects. If this takes too long, turn it on. When on, objects will degrade but never redraw on mouse up, always displaying at the most recent level of degradation. NOTE As viewport degradation occurs, the Adaptive Degradation button on the status bar turns aqua, as shown here. Normally, when the degradation stops, the color returns to gold, but when Never Redraw After Degrade is on, the background remains aqua, even when active degradation is not happening. To resolve this, either turn off Adaptive Degradation or turn off Never Redraw After Degrade. Then, to redraw the screen, press ~. Prioritize Scene Objects group Distance from Camera/Screen Size Use this slider to specify whether the software gives higher priority to objects based on their distance from the camera or their screen size, regardless of distance from the camera. The two criteria, represented by either end of the scale, are defined as follows: ■ Distance from Camera This sets the priority for each object based on its distance from the camera or screen. The farther the object, the lower its priority and the faster it will degrade. Higher values display closer objects regardless of their size. ■ Screen Size The size of the bounding box in pixels. The smaller the object, the lower its priority and the faster it will degrade. Higher values degrade smaller objects regardless of their distance. If you move the slider all the way to either end of the scale, the software sets priorities based exclusively on that criterion. However, because it's a sliding scale, you can use both criteria on a weighted basis. For example, if you set one end to 0.66, the other is set to 0.34, meaning that the software takes both criteria into account in determining priorities, but gives the criterion set to 0.66 about twice as much weight as the other. To return this parameter to its default setting (0.10/0.9), indicated by the tick mark on the scale, right-click the slider. Force objects displayed smaller than ... pixels to the lowest priority Objects smaller than the specified size on the screen, in pixels, always use the lowest Adaptive Degradation Options | 7831