The algorithm also visits children in order of distance to the query point. This means it checks the most promising quadrants first, which tends to find a good candidate early and enables aggressive pruning of the remaining quadrants. Without this ordering, the algorithm would still produce the correct result, but it would prune fewer nodes.
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- The image rendering MUST support supersampling for antialiased text and points (2x by default),这一点在Line官方版本下载中也有详细论述
And here's how a far CALL uses a different test constant through the same subroutine: