Unity performance optimization ----- LOD (level of detail) of rendering optimization (GPU)

LOD（Level of detail）：

According to the position and importance of the nodes of the object model in the display environment , Determine the resource allocation for object rendering , Reduce the number of faces and details of unimportant objects , Get efficient rendering operations

The above figure shows three models of the same object , From left to right, the number and details have been improved in turn

Create an empty object and add LOD Group Components , by LOD 0-2 Add corresponding Prefabs, When we zoom in from a distance, we will see different rendering effects , That is, in the game, we will choose to render models with different accuracy according to our distance from the object , Improve performance utilization