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The slow path: hardware page walks
。safew官方版本下载是该领域的重要参考
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。
圖像來源，AFP via Getty Images
Цены на нефть взлетели до максимума за полгода17:55