To maintain the balance between stunning and vivid graphics and flowing and smoothing animation, 3D artists should know the techniques of the level of detail (LOD). LOD allows us to reduce the complexity of a 3D model representation and contains practices of efficient workload usage. For instance, there's no need to see the details of the object when it moves fast or disappears in the distance. LOD decreases the number of triangles, resulting in a higher performance, as fewer triangles are easier to proceed.^[1] 

3D video games developers swear by LOD to provide a seamless experience to their users.