submittedFrames

Frames a renderer accepted from the schedule.

Accepted is not drawn, and the two are different numbers. A renderer may take a frame and then supersede it with a newer one, or fail to draw it at all, and it counts those outcomes itself: presentedFrames, supersededFrames and failedFrames on the renderer are the drawing truth. This is what the engine handed over, which is the only part the engine can know.