Left 4 Dead: Navigational Meshes Advanced

[owenaero]

my nav mesh it totaled how can i deleat the entire nav mesh and do a new on i cant find a command for dleating all

[Jensettiman]

About the ladder part: I manage to make the ladder work for the computers, but only for that test. When I exit the game, the ladder stops working, except for me. Why?

[misiuinietylko]

I have problem. I create good nav. I check this "nav_report" < something like this and game not find problem but zombie don't attack me if I start panic event. Only when I split or connect nav zombies attack me and only those places which are edited. I check z_debug and There's no any "mark". Please help (sorry for english) (nav_analyze not work, I have player start and finale)

[Left4DeadMods]

I used nav meshes on l4d2 on my survival map and marked everywhere and battle feild and everywhere as battle station becasue i have l4d1 survivors on my map too but spitter acid spawns under me randomly please help ? :'(

[WorldofLevelDesign]

@Left4DeadMods Hard to say. Maybe there is navigation that got generated where it wasn't supposed to, spawning infected in those areas. Or you have a gap in geometry where infected fall into that part of your map. Check your navigation where the spitter is.

[SpeedB00st]

@Left4DeadMods I have that same problem did u ever fix it if so how?

[boldbulkhead]

How do i create a player spawn witch is on like a boat, or near a car

[ExSadanobu]

I'm learning how to use Hammer properly...so I thnk i did some mistakes with nav editing.

How to delete all the nav you have done for starting again?

Anyway the problem now is that when i try to nav_generate_incremental an error occurs ; no walkable zone.

Yes I did also nav_mark_walkable, but nothing.

[FastAndFuriousClips]

Hey- i created a nav mesh, then started up the map (survival only) but no zombies spawn. IDK what im doing wrong.

[Aarona68]

Ah, the marking empty makes sense. this answers my question from another one of your videos. thanks again!! Is that bind thing permanent? What I mean is..will it stay for multiple maps, or do you have to keep binding them every time you load up?

[BUGHUNTER6]

My bots won't enter the elevator. What should I do?

[faulkon7088]

Hey, bro how would I make boss's like the tank and witch spawn

[Gnarpig]

I have the problem "Missing Battlefield check found 3156 areas", Any help?

[Desick]

How about infected ladders? My ladders are visible in nav mesh but somehow zombies wont use them

[GameproJohnny]

Hey, I was wondering if anyone could help me with a problem I have in L4D?

I have a door in my level which triggers a panic event when opened, I have it so the infected cannot destroy it, my problem is that the Director spawns infected behind the door and they can't get to me without me opening the door, this would also be problematic when it comes to others playing the map and using this to their advantage, please help! If there is a nav mesh command etc. to counteract this, do tell.

[WorldofLevelDesign]

@GameproJohnny Not sure I understand your question. You have the door not destroyable by infected and if you open the door panic event starts. You have the infected behind the doors and they can't break it because you have it set to not break. What do you want the nav to do? Its a bit confusing, hope you clear it up so I can help.

[bigwowgamer]

I think i know what he means-

He's made a door unbreakable by infected, he's also made it a panic event.

the infected spawn on the outside(So they cant get in to kill them, so they skip the panic event). Cleared it up?

[gewthen]

create an other entrance into the area that only infected can use (e.g. too high for a survivor to reach).

[Ricksdetrix]

If your still having problems, Remember the alarmed dor in blood harvest? theres a vent above it isnt there.

Try make another route that only the infected can get to.

[mrmonovoa]

YES TY ALEX MAKE MOAR :D

[CruellKlan]

I have a problem.

I got my map ready and everything works 100%, but when a panic event has only a few zombies appear, usually two groups of them. and I see in several maps, plenty of time to panic with various hordes. could help me with this?

grateful

Toscano

[Ceeps0]

CruelKlan, there can be many reasons for this. Here are some things I can think of:

-Nowhere for them to spawn out of sight

-You've reached the common infected limit (Maybe they DID spawn, but you can't see them. I had a problem where special infected were spawning inside my hollow buildings. Perhaps the horde spawned, but never got to you.)

[6yXJI0]

5 stars and subsrcibed!

[brisketx]

Is there a command to clear all nav editing i have done on my map and start over? For some reason the special infected are not spawning anymore. Also what can i do to improve performance of my map? I put nodraw everywhere i could but i have a group of big warehouses together and when i face that way the game slows to 15 fps until i get inside the buildings. Is there a draw distance setting? Or perhaps i can add fog so i cant see the buildings until i get closer.

[JonnyTiney]

Don't know if you've resolved this yourself, but go to where your project is saved and simply delete the .nav file to remove the navigation mesh.

[DrStab]

For the warehouse problem, you should learn how to use hints and areaportals to properly split up your map.

[buggyiscool]

is there an unmark command that deletes a specific attribute of a nav mesh? i tried "nav_unmark" but it didnt remove the attribute...

[CamperMovie95]

can you give me a radio menu whit the nav things do you got a link?

[Mariuspersem]

i have made a map, and when the finale is finished, it`s comes a helicopter. I want a nav area inside the helicopter but when i type nav_mark_walkable on the func_brush, it just makes a nav_mark_walkable UNDER the helicopter, can i make a nav mesh manually or something?

[buggyiscool]

nav_begin_area, nav_end_area

[Havok846]

How do you make bots go up stairs?

p.s im new

[WorldofLevelDesign]

After you build nav_meshes, they should be able to go up/down the stairs.

[vladim0105]

@WorldofLevelDesign that dosent help me, they are still unable to reach me when im on the second floor because of the nav on the stairs

[freddi444444]

ok. i've been having a problem that comes back every time i make a nav mesh.

heres the problem:

first i nav_mark_walkable in several places (because one doesn't fill the whole map)

then i generate incremental

then i make the player_start and the finale and checkpoint

then i nav_analyze it

it auto restarts and i get the map is unplayable message (even though i can play the whole map)

pls help(i checked valves website and several things didn't help and i've redone the nav meshing several times)

[freddi444444]

need any info or the map pls ask

[d33f]

you can also use exec nav_mode

then you have all the nav keys pre bind :P

[Nerd06951]

I got another question, dude. How do i destroy a nav mesh? I know you cant keep helping me alone, youve got alot of people askin for help. I found the nav mesh problem for the level i needed help on before, but now the nav mesh is the same as before, it didnt change. So again, how do i destroy the old one to regenerate a new one?

[xxxVJ300xxx]

If you mean delete the whole mesh, I think you can simply delete the Nav file in the maps folder. Then when you start up the map again thier wont be a Nav.

[Naserve]

Nav_Flood_select in console, then hit delete, it should delete every part of the mesh. Do flood select again just incase it missed any.

[buggyiscool]

nav_delete deletes it...then nav_begin_area starts a new area...drag to create it then "nav_end_area" to create it

[flameknight7]

you should have typed in "z_Debug 1" to show what you have marked and what is not marked :D Also, in L4D you can use the radial menus to make custom nav menu sets!

[WorldofLevelDesign]

I keep forgetting to use that. :)

Do you know the resource where I can look into how to create that?

Thanks Knight.

[flameknight7]

you can go directly to the file and add your own menus. its under:

Steam\SteamApps\common\left 4 dead\left4dead\scripts

and look for RadialMenu.

Just copy the menu sets like "QA" and "Orders" and rename it to what ever you like. for example: "Nav,Survivor,Alive"

once you've done that you can replace the commands with console commands and label names. Like

"command""mark PLAYER_START"

"label" "playerStart"

then in console and go like

"bind "c" "+mouse_menu nav"

Hope this helps!

[WorldofLevelDesign]

Thats awesome.

Thanks knight.

[flameknight7]

np :D

[NAWhilbertjonker]

@WorldofLevelDesign so i finally did all the NAV stuff

but now my map is really dark as in i cant see anything

how can i fix this??(it happened after NAV_anylize or something among those lines)

[llllWD9543llll]

i love you tutorials there the best !!!!