Adaptive Degradation

Select the boxes in each column to indicate the rendering modes to step through during necessary degradation. Those selected in the General Degradation column affect all inactive viewports, while those selected in the Active Degradation column affect only the active viewport.

Maintain FPS—Lets you set the frame rate in frames per second that adaptive display will attempt to maintain.

Reset on Mouse Up—Resets the rendering level as the mouse is released. If turned on, the program tries rendering levels, selected in the degradation settings, to achieve optimal quality while still maintaining the playback rate. If turned off, the rendering level immediately drops to the previous minimum.

Show rebuild cursor—Displays a cursor to show when the viewport rendering level is being recalculated.

Update Time—Sets the interval between updates during viewport rendering. At each interval, a new section of the rendering is drawn on screen. If set to 0, nothing is drawn until the rendering is complete.

Interrupt Time—Sets the interval between times when the program checks for a mouse-down event during viewport rendering. Small values free the mouse more quickly, so you can use the mouse elsewhere without waiting for it to "wake up."

To override adaptive degradation, turn off the Degradation Override button on the prompt line. Press O (letter "o") to turn off adaptive degradation, and press O (letter "o") again to turn it back on.

This is handy when you're adjusting lights and want to see their effect, real time, in a shaded viewport. Or you might be adjusting the camera and need to see complex geometry exactly as it is.