[ Version ( since = "3.8" ) ]
public int64 get_history_start ()
FrameClock internally keeps a history of FrameTimings objects for recent frames that can be retrieved with get_timings.
The set of stored frames is the set from the counter values given by get_history_start and get_frame_counter, inclusive.
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the frame counter value for the oldest frame that is available in the internal frame history of the FrameClock. |