使用这些设置构建导航网格时，构建进程可能利用到的最大工作线程数。
范围为 1 到 JobsUtility.JobWorkerCount（包括）之间的值会导致构建进程在构建导航网格时以该数量的作业计划所有工作。每个作业会计算尽可能多的导航网格图块，在计算完上一个图块后。
值 0 或高于 JobsUtility.JobWorkerCount 会导致构建进程使用所有可用的工作线程。在这种情况下，它会以自己的独立作业计算每个图块。当需要计算的图块数少于工作线程数时，构建进程也会在独立的作业中计算每个图块。
默认值为 0。
其他资源：tileSize。
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