How to BoxCast() without moving the box?

Question

public static bool BoxCast(Vector3 center,
                           Vector3 halfExtents,
                           Vector3 direction,
                           Quaternion orientation = Quaternion.identity, 
                           float maxDistance = Mathf.Infinity,
                           ...);

These are the parameters for a boxcast in Unity3D. I am confused over the purpose of the maxDistance parameter as we already draw the box with the halfExtents parameter. What if I don't want to move the box? I.e., I want to draw a box and get information about whatever is inside of it. I am not looking to move the box. Using maxDistance = 0 seems to do nothing as it does not register any hits. Using maxDistance > 0 will move the box, and I am looking to avoid this.

How can I use BoxCast(), avoiding moving the box?

Answer 1

There is Physics.OverlapBox, perhaps that would better suit your needs?

public static Collider[] OverlapBox(Vector3 center, Vector3 halfExtents, 
      Quaternion orientation = Quaternion.identity, 
      int layerMask = AllLayers, 
      QueryTriggerInteraction queryTriggerInteraction = QueryTriggerInteraction.UseGlobal);

https://docs.unity3d.com/ScriptReference/Physics.OverlapBox.html

Or maybe even Physics.CheckBox if you dont care whats actually in the box.

https://docs.unity3d.com/ScriptReference/Physics.CheckBox.html