Does the coverage function only depend on one particular triangle, or does it also depend on all the other triangles in the image? For example, if there is another triangle that partially overlaps the triangle that we're trying to draw, is coverage(x, y) 1 or 0 for a point (x, y) that lies on this triangle but is also covered by the overlapping triangle?

Does the coverage function only depend on one particular triangle, or does it also depend on all the other triangles in the image? For example, if there is another triangle that partially overlaps the triangle that we're trying to draw, is coverage(x, y) 1 or 0 for a point (x, y) that lies on this triangle but is also covered by the overlapping triangle?