Is 3ds max required for making basic collisions ?

[steviex34]

Hello. I am a beginner at collisions. Are there any other alternate methods to make basic floor collisions ? Thank you very much.

[pepperman35]

In 2023 lee3110, posted a link to this tutorial.  I haven't tested or used it but it might be worth a read.  Simple collision made in Nifskope for Fallout 4

Supporting video can be found here:

NifSkope Collision Tutorial - Fallout 4 and Skyrim

 

[RoNin1971]

If a basic floor tile collision is all you need, the easiest would be to copy the bhkcollisionobject from an exisitng floor tile. (256x256, centered at x,y,z = 0,0,0.)

[steviex34]

Thanks. Before i move to complex options, i would like to experiment with the basics. Is there a similar copy method etc. for making stairs collision too ?

[South8028]

stairs use collision with the stair material. With ordinary materials, npc is not able to walk on it even with navmesh. Perhaps these collisions can also be copied into a nifscope. I couldn't make vanilla stairs for npcs even in 3ds. NPCs are not good at walking on my stairs. They try to take shortcuts, run into walls, walk in one place and simply teleport to the floor to which they originally went. It looks ridiculous.

[RoNin1971]

Yeah, stairs collisions are a pita.

As long as the new stairs dimension matches an existing one, the copy method will work.

When creating one, I usually use a 'ramp' (for the collision) instead. No need for 'stairs helpers' special materials etc. and in game you hardly see any difference when they walk up or down.

[steviex34]

Quote

Collision configuration can be looked up by selecting something in the CK's render window, pressing F10, and looking under  Havok > bhk*CollisionObject. (https://docs.google.com/document/d/1dR0FU5HQrWsBiU6BtKg-dNXLSUVVlhT72fGCVyWmw3w/edit?tab=t.0)

 

Is there an alternate option to view this setting without pressing F10 ? Can i change this key to some other keyboard button in creation kit settings ?

Edited October 20 by steviex34

[pepperman35]

On 10/19/2024 at 8:33 PM, South8028 said:

stairs use collision with the stair material. With ordinary materials, npc is not able to walk on it even with navmesh. Perhaps these collisions can also be copied into a nifscope. I couldn't make vanilla stairs for npcs even in 3ds. NPCs are not good at walking on my stairs. They try to take shortcuts, run into walls, walk in one place and simply teleport to the floor to which they originally went. It looks ridiculous.

I typically use a ramp (e.g., angled plane) as a stair helper for stair collisions, then navmesh the stairs as if it were a ramp.  NPCs seem to work ok on this method.

[South8028]

4 hours ago, pepperman35 said:

I typically use a ramp (e.g., angled plane) as a stair helper for stair collisions, then navmesh the stairs as if it were a ramp.  NPCs seem to work ok on this method.

Yes, npcs walk along the usual straight stairs. Even a ramp is not required. They go up steps no more than 13 high. The collision material for stairs itself smoothes out the geometry. But if you look at my stairs, you will see that they are all circular. NPCs can't walk up circular stairs. They rest against the central column at the turn and move their feet. The same can happen on any flights of stairs of complex shape. They can hit the wall when turning.

 

Edited October 21 by South8028