6 Common File Types in Source SDK & Authoring Tools Tutorial HD

6 Most Common File Types in Source SDK and L4D1/2 Authoring Tools are covered. 6 Most Common File Types for Level Design are: .bsp = file extension for maps/levels .vmt = valve material type .vtf = valve texture format .nav = navigation mesh file for bots .vpk = valve pak file, uncompressed archive .vmf = valve map file, raw map/level file data Resources/List of Tutorials: L4D2 Tutorials: http://www.worldofleveldesign.com/categories/cat_left4dead2_mapping.php L4D1 Tutorials: http://www.worldofleveldesign.com/categories/cat_left4dead_mapping.php Level Design Tutorials and Tips: http://www.worldofleveldesign.com/categories/cat_level_design_tutorials_tips.php