thank for reply, but there isn’t a way for get all the points of gltf object, and prevent the player from going there?
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No, that would be a huge number of points for any kind of complicated shape and you would need to create a 3d representation of the shape to check on the intersection.
This is why most simple 3D engines use much simpler 3d colliders, like boxes, spheres, and capsules to use as collision shapes (broad phase collision detection). After that, if a more precise collision detection is needed, it gets complicated quickly, making a more precise representation of the object and checking for the intersection. I suggest starting simple first, adjusting the bounding box up or down a little to see if it is good enough.
If you need much more precision, you might think about moving to a full 3D engine (Unity, Unreal, etc.) that can implement mesh colliders.