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L4D: Navigational Meshes and Spawn Infected

June 15, 2009
Category: Left 4 Dead Mapping

Now we get into the fun and more advanced gameplay elements. After the following tutorial you will be able to add infected to our map, set up navigational meshes and shoot some infected.

You have to compile your map and be in-game while editing navigational meshes.

L4D Mapping: Navigational Meshes and Spawning Infected - Video Tutorial

Navigational Meshes Console commands:

nav_edit 1: turns on navigational editing

nav_edit 0: turns off navigational editing

director_stop: stops the director from spawning infected

director_start: forces the director to spawn infected

nb_delete_all: removes the survivors and all the infected from your map

nav_mark_walkable

nav_generate_incremental

nav_clear_selected_set: clear a selection

nav_toggle_in_selected_set: select a set that your mouse is pointing at

nav_delete: deletes selected navigation

nav_save: saves your navigation into a file along with your map name .nav

nav_analyze: analyze your navigation for errors

mark PLAYER_START: marks a specific location on navigation with Player Start property

mark FINALE: marks a specific location on navigation with Finale

These two elements are required to make sure that info_director works properly and the survivors know where to go.

Comments are Closed. Please Join & Discuss this post in the World of Level Design Forums Comments Curtis 27 Nov 2009, 15:52 What does, "mark THREAT" do? ne_skaju 31 Oct 2009, 12:40 When I use nav_generate, some locations (roofs) are not generated, have to place navigation manually. Have a questions: – Is it better to place navigation manually, or just using nav_generate? – What is difference between nav_generate and nav_generate_incremental? Marcus 01 Sep 2009, 07:58 Yes if the vertical distance is less than or equal to 128 units then the nav mesh will take care of jumping and hanging on to ledges etc. Vangan 28 Jun 2009, 11:35 Thats what i was looking for , thanks. (2:00 looks like a profesional wallhack) Vander 19 Jun 2009, 09:05 Great tut! I thought it was a lot more complicated than this. Turns out it's really easy! Gamble 15 Jun 2009, 07:17 Nice tutorial. Keep up the good work. Gamble 15 Jun 2009, 07:17 Nice tutorial. AlexG 14 Jun 2009, 17:01 Thanks Keith and Ian. Ian: for the most part, yes, but there is tweaking that will need to be done. keithg 14 Jun 2009, 16:42 This is looking really good Ian Brooks 14 Jun 2009, 14:20 Great set of tutorials yet again - much easier to comprehend when watching someone doing something than simply reading about it. Do these steps allow the infected to jump as well (up ladders, over walls etc.) ? Powered by Scriptsmill Comments Script