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Cameras, lights? Under normal circumstances (without opening the 3D layer properties), it has no effect, and it can only work when opening the 3D properties of the layer or some 3D special effects (such as form special effects). It can simulate the scene of a picture in 3D (Z-axis attribute appears in the picture), make multi-layer perspective, and also support lighting, materials, projection/shadow, etc. In some cases, it can make realistic 3D scenes with 2D pictures? I don't know if the landlord understands, if you have used 3ds? Max, it's easy to understand.