指示在更新网格数据时，Unity 应执行默认检查和验证。
可以将此标志用于“高级”网格 API，其中包括以下方法：Mesh.SetVertexBufferData、Mesh.SetIndexBufferData、Mesh.SetSubMesh。
有关从脚本向网格分配数据的较简单方法与较高级方法之间差异的信息，请参阅 Mesh 页面上的说明。
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