定方向：求「下一个」→ 倒序；求「上一个」→ 正序。
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It’s also possible to abandon the threshold matrix altogether and instead calculate a value for every pixel coordinate at runtime. If the function is simple enough this can be a good and efficient way to break up patterns and create interesting textures.
В России ответили на имитирующие высадку на Украине учения НАТО18:04