Is there a way to disable collision for an object in realtime to affect pathfinding?

[anonymous_user_cd645347]

Is there a way to disable collision for an object in realtime to affect pathfinding? I want to move a pawn to a target location and pass through some objects if certain ingame conditions are set. On other times the same objects should block the pawn.

If I disable collisions on this objects before play, it works as expected. But if I disable collisions within blueprint, the pathfinding won’t find a valid path and the pawn does nothing.

I’ve made a simple example project with the topdown template.

Trying to force a navmesh rebuild with console command “RebuildNavigation” also didn’t help. Any ideas? Thank you.

[mindfane]

I am not sure, but I remember seeing an option like ‘Can Ever Affect Navigation’ inside collision settings. I have not tried altering it during gameplay. Perhaps if you change that during gameplay and rebuild the navmesh, it might work. Its worth a try

[anonymous_user_cd645347]

I’ve tried altering bCanEverAffectNavigation with a custom blueprint method in c++:

void ACEANGameMode::ToggleCanEverAffectNavigation(AStaticMeshActor *Actor)
{
	Actor->GetStaticMeshComponent()->SetCanEverAffectNavigation(false);
}

So I modified the example project to call this method and force a navmesh rebuild after that. Sadly it had no effect at all.

I wonder if I’m doing something terribly wrong here or if this is just not possible at all…

[Stormrage256]

Have you tried enabling run time navigation rebuild in the nav mesh recast in your level? If you enable that, I think rebuild navigation should do the trick.

[anonymous_user_cd645347]

Yes, I’ve tried this with no luck …