UFPS + Modern Ruins = Player is passing through wall

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first of all, i'm new to the world of Unity Game Development but i do have an established experience in working with C#. I'm working with UFPS out-of-the-box using Modern Ruins' Demo Scene as the primary map. And for some reason, the default player (HeroHDWeapons) is passing through each and every objects on the map: walls, posts, literally everything.

However, i also have a humanoid asset for use on my AI/BOT using Low Poly Soldiers, also out-of-the-box, and i just added a Capsule Collider, yet he doesn't pass through wall - or maybe since he's using a Nav Mesh Agent for his movement.

I've tried everything i know for my Player model based on what i've learned from basic unity tutorials. I added a RigidBody Component, which makes my player fall off the map with the "Use Gravity" option ticked but regardless, still passes through walls. I also tried adding a Capsule Collider, still passes through.

I did try adding a Capsule Collider on one of the objects on the map, and the player suddenly stopped passing through it. Of course, adding a Collider Component on each and every object on the map is not a good idea - considering there are multiple hundreds of them.

Here is the player model's properties: enter image description here

P.S.: i've already done my fair share of research but none of them works. except for those talking about using other syntax like Rigidbody.MovePosition(Vector3) as i don't know what it would impact on the entire UFPS Framework.

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c#unity3dgame-physics
Possible duplicate of Character fall through ground after playing sometime – Ruzihm
you cant expect to detect a collision with anything that does not have a collider. simple as that. my advice is add colliders to big objects and level objects, but not all the clutter. stuff like walls, barrels, crates, the obvious big objects. – Technivorous
@Ruzihm no it is not a duplicate, i do not fall off the ground. its just that the player is passing through walls. – Nii
well that's nasty @Vanethrane, guess the only way around is to put colliders in the map objects? there's literally many of them. – Nii
@Nii It's a possible duplicate because the same answers to that question address yours as well. – Ruzihm

1 Answers

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You need Colliders. Simple as that. pick and choose what objects to collide if it makes it easier. note that the unity Engine can ONLY handle 65536 different colliders at a time, only. lol.

According to the Unity3D documentation:

"Note that the PhysX engine used by Unity only handles a maximum of 65536 colliders in a scene."