I have created and interior with invisible floors and walls by using collision markers as the floor and walls. I placed some enemies on the collision marker serving as the floor. They enemies stand on the floor fine but just stand still and don't move or attack until the player get right up close to them. I have tried to Navmesh the collision marker serving as the floor but Navmesh always generates 0 Tris and dose not seem to recognize the collision marker as an object or landscape. Anyone know how I can do this????

Are you saying you used auto generate on the navmesh? Navmesh it manually you'll usually get better results anyway.

Also are you saying the NPC's are trying to walk through the collision marker? they'll do that unless the navmesh terminates at the border or the collision box is the L_NAVCUT type

I have tried every navmesh option: Advanced, land and objects, recast based, havok based, object based but the CK navmesh does not navmesh the colision markers I have used as the floor and zero navmesh is generated. The NPC's work fine they just behave they way any NPC does in an interior with no navmesh (They stand still in the one spot and don't move or attack unless the player moves right next to them). The problem is I cant get the navmesh to generate at all using only a collision marker as the interior floor.

Manually navmeshing is actually quite easy once you get the hang of it. If you really want to use the generator I'd suggest placing some temporary floor objects (DwePlatBgMid01 is good) and then deleting them when done.

Edit: I used this method to navmesh a moving platform which can exist in any one of several locations at a given time.

MMM kind of thought I would have to place some sort of temp flooring. I really don't want to do this though as my interior is now quite large. How do I manually place navmesh and can I manually place it over my collision markers? This sounds a lot less time consuming.

https://www.youtube.com/watch?v=raM9TBZZyQY



It can be a little intimidating at first but once you get going its quite quick

btw, you would only need to approximate your flooring with non-marker objects. Navmesh does not have to be exact. simple is good. Keep in mind that 1 triangle = 1 npc can stand here.

Thanks I will give it a look

Do you need to use collision markers if all you are doing is making an invisible floor? Why not use regular architectural items and retexture them with the null texture set. I was trying to contain some creatures inside a cage made with spears and it kept jumping over or onto the cage so I contained it with a guard house with a null texture inside the cage. You can't see it but it keeps the creature where it belongs. Much easier to place normal architectural items then replace them with invisible copies after you have it all in place and navmeshed.

I ended up with Half my interior objects all spawning at one spot under the collision markers in a mangled mess even though I carefully created four sided rooms, with a floor walls and ceiling out of collision markers and the other half of the object spawned where they were supposed to. Absolutely no reason why this should happen but that's the Creation Kit for you lol. Just going to floor it and have invisible walls. I'll try to fix it in a few days, the rage is starting to build up to unacceptable levels, need to have a break from it till I calm down lol.

crossi's suggestion is an excellent one. Personally I've found the nulltextureset to be invaluable.

I'll give it a try on Sunday lol