Rectangle and background clipping issue
In simplified terms, I have a situation where I am drawing a large filled Rectangle and then drawing other smaller filled rectangles in front of or on top of the large one. The rectangles at the front do not completely cover the large rectangle at the back so there is a region of the back rectangle around the smaller rectangles that "shows through" so to speak.
The question is, is it possible (perhaps with some form of "negative" clipping) to repaint the background colour of the large rectangle without having to repaint the smaller rectangles as well? So, just the area that shows through from the large rectangle is repainted. At the moment, I have to repaint the large rectangle and then all the smaller ones as well which is clearly too expensive.
And loving it,
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