Global Variable

kCIContextPriorityRequestLow

A key for enabling low-priority GPU use.

Declaration

const CIContextOption kCIContextPriorityRequestLow;

Discussion

The value for this key is an NSNumber object containing a Boolean value. If this value is YES, use of the Core Image context from a background thread takes lower priority than GPU usage from the main thread, allowing your app to perform Core Image rendering without disturbing the frame rate of UI animations.