camera.position.z = 40：这一步很关键！默认情况下，物体在坐标原点 (0,0,0)，相机也在原点。如果你不移开相机，你就跟物体“贴脸”了，什么也看不见。我们把相机往后拉 40 米，就能看清全貌了。
Prosecutors have alleged that the two gunmen, inspired by Islamic State, acted alone and were not part of a wider cell. The attack was Australia's worst mass shooting since the 1996 Port Arthur attack.
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Samsung Galaxy S26 vs. S24: After comparing both models, here's my take
mmap_size: 134217728