This all will allow you to see through walls all the mobs, players and chests and other objects. This is a very lightweight package, without using any shaders and custom textures. The developer understands that some of You may be upset with the release of this package, therefore, provides information on how to disable X-ray on servers. To do this, create a resource bundle that contains the vanilla entity.material and terrain.material files. Do this for the players that use resource bundles, and inbound to the server.