You display the default tiling system Composite uses to increase processing speed with the Show Tiles tool. This lets you view how Composite has divided the image and select a region of interest to work on a smaller scale. This way, instead of processing an entire frame, only those tiles that are part of the result of the operation need processing.
You can show or hide tiles in a Player view or the fullscreen Player.
To show or hide the area of the tiles that fall outside the region of interest:
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