Question by MhdAmine · Apr 15, 2021 at 07:03 PM · collision collider performance component

Performance: Addcomponent BoxCollider in update method

Hello,

I have 10000 GameObjects (non-moving objects) that I instantiate in unity.

Which is better in terms of performance:

Add a BoxCollider to all objects when instantiated

Add BoxCOllider to the objects when the camera is close to the object using the update method

 private void FixedUpdate() 
     Vector3 CameraPos = mainCam.transform.position; 
             Collider[] colliders = Physics.OverlapSphere(CameraPos, radius); 
      
             foreach(Collider hit in colliders) 
             { 
                 if (hit.gameObject.GetComponent<BoxCollider>() == null) 
                 { 
                     hit.gameObject.AddComponent<BoxCollider>(); 
                 } 
      
             } 
     
     }

I need BoxCollider because the camera should not go through these gameobjects.