ФБР предупредило Калифорнию о возможной атаке Ирана20:49
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，详情可参考wps
One Shared Material — every mesh in the scene shares a single material. The Mesh UVs map into a small palette texture, so they all pull their color from the same image, like a shared paint-by-numbers sheet. One material means zero shader state switches between draw calls, so the GPU can blast through 38 BatchedMeshes without stalling.
.map(fn(n: int) - int { n * n });