Mathf.ClosestPowerOfTwo

public static int ClosestPowerOfTwo (int value);

설명

Returns the closest power of two value.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Example() {
        Debug.Log(Mathf.ClosestPowerOfTwo(7));
        Debug.Log(Mathf.ClosestPowerOfTwo(19));
    }
}