Create trimesh collision via script

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1

Godot 4.3

I want to make trimesh collision from MeshInstance3D in the script , but i dont know how to do that. Can someone tell me how to do that

2

Try this:

func generate_trimesh_collision(mesh_instance: MeshInstance3D)
    var collision = CollisionShape3D.new()
    collision.shape = mesh_instance.mesh.create_trimesh_shape()

    var static_body = StaticBody3D.new()
    static_body.add_child(collision)

    mesh_instance.add_child(static_body)
3

I tried implementing this code and it just gave me an error Cannot call method ‘create_trimesh_shape’ on a null value. I am also in godot 4.4 so I don’t know if the update made this not work

4

It means that the mesh_instance or it’s mesh is null, please recheck your MeshInstance3D.