Nav Mesh

A Navigation Mesh (or shorter: nav mesh) represents the "walkable areas" of a map. This data is required by:

1. Bots and Hostages in:
   • Template:Game name
   • Template:Game name
2. NextBot entities in:
   • Template:Game name
   • Template:Game name
   • Template:Game name
   • Template:Game name

These require the data to realize what's navigable in their environment, and path to their desired destination.

NAV files

Main article:  NAV

Navigation Mesh data is stored in a NAV file corresponding to the map file (.bsp) for which it is used. For example, the nav mesh for cstrike\maps\de_dust.bsp is stored in cstrike\maps\de_dust.nav.

Navigation Mesh Editing

Main article:  Nav Mesh Editing

Main article:  Nav Mesh Commands

The Navigation Mesh Editing is done in-game. A (new) .nav file can be generated with nav_generate (which requires sv_cheats 1 and nav_edit 1).

Game Specific SubVersions

Game	Nav Mesh Class	Subversion	Notes
Template:Game name	TheNavMesh	0	Garry's Mod is using the base navigation mesh(It doesn't use it's own implementation unlike Valve games)
Template:Game name	CSNavMesh	1	* Appends approach area data to each area.
Template:Game name	CTFNavMesh	2	Appends TF2-specific attribute flag to area data.
Template:Game name	TerrorNavMesh	13
Template:Game name	TerrorNavMesh	14

See also

• Navigation Mesh Console Command Reference
• Left 4 Dead Navigation Meshes
• L4D Level Design/Nav Meshes
• L4D Level Design/Nav Flow
• L4D Level Design/Advanced Nav Editing

External Links

• Official forums for the bot system (down) - Archived version.
• Waypointing for CS:S Bots/Hostages (Edit Life)