[Unity3D] 마우스 좌표 카메라 좌표로 변환하기.

// Draw a yellow sphere in the scene view at the position
    // on the near plane of the selected camera that is
    // 100 pixels from lower-left.
    using UnityEngine;
using System.Collections;public class ExampleClass : MonoBehaviour {    
    void OnDrawGizmosSelected() {
        Camera camera = GetComponent<Camera>();
        Vector3 p = camera.ScreenToWorldPoint(new Vector3(100, 100, camera.nearClipPlane));
        Gizmos.color = Color.yellow;
        Gizmos.DrawSphere(p, 0.1F);
    }
}