3D model mesh used by DirectX applications and games; saves the polygonal mesh of a model and is often used for rendering game objects and other entities in 3D games.

A MESH file is a 3D model created by Godot Engine, a free and open source game engine used to create 2D and 3D games. It stores information about a 3D model in a proprietary format similar to the Wavefront 3D Object format but includes a custom header with metadata. MESH files are created when a user imports an .OBJ file in Godot Engine as an object when developing a game.

You can import an OBJ file into Godot Engine using the Import 3D Mesh menu or by simply dragging and dropping it a scene, then selecting Import. Godot Engine only creates MESH files when Wavefront 3D OBJ files are imported into the project. If a .DAE, .GLTF, or .GLB model file is imported in Godot Engine, the application creates an .SCN file. MESH files generated by Godot Engine are placed in the ".import" folder in the project directory. NOTE: Godot Engine MESH files were introduced with the release of version 3 of Godot Engine. They replaced .MSH files, which are used in version 2 of Godot Engine.