Estinado TDD123, I appreciate your answer, feeling everything you say, and I know what a mesh is, and a topology that is the lowest in polygon, I know the whole process friend and I handle blender, zbrush and other 3D programs, but everything that has to have a support, where that is run they are called render engines, such as Unity or Unreal which are the best known in the video game or animation industry and that is the question which is the rendering engine Where does Second Life run, I hope someone can help me with that, I also know that the programming is open source, but what rendering engine is running