| scene | 要从中返回 3D 物理场景的场景。 |
PhysicsScene 场景使用的 3D 物理场景。
一种从场景返回 3D 物理场景的扩展方法。
返回分配给所选 Scene 的 PhysicsScene。Scene 可能已经创建了自己的本地 3D 物理场景，在这种情况下允许访问该本地场景。或者，Scene 可能正在使用默认的 3D 物理场景 (Physics.defaultPhysicsScene)，在这种情况下将返回该默认场景。
另请参阅：PhysicsScene 和 Scene。
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