The performance of any 3d application is highly dependent on the total number of polygons that the GPU has to process per frame in a 3d scene. If you have a complex scene containing high polygon 3d models with a lot of meshes that use a lot of different materials, the overall performance of your game will suffer. Poly few is a complete optimization solution for unity that aims to solve this problem by allowing you to optimize high quality complex 3d scenes. With integrated features like mesh simplification, automatic LOD generation, mesh merging, and material combining, you can greatly improve the performance of your game with a few clicks without the need of writing even a single line of code. Such optimization techniques are especially useful when developing for resource constrained platforms like mobile phones or other low end devices. This can also help eliminate your expenses for artists.
Original_Link: https://assetstore.unity.com/packages/tools/utilities/poly-few-mesh-simplifier-and-auto-lod-generator-160139
