光滑物体的映射。画出四个物体，球体，正方形，圆球，圆柱体。这四个物体的表面都是光滑的，都可以映射周围的场景。并且正方体是不停的旋转的，所映射出来的周围的场景时刻在变化。-Smooth object mapping. Draw four objects, sphere, square, sphere, cylinder. The four surfaces are smooth, can be mapped around the scene. And the cube is spinning, a