获取摄像机视图窗口区域： camera.ViewportToWorldPoint (new Vector3 (0, 1, 10.0f))
void OnDrawGizmosSelected(){ print (camera.ViewportToWorldPoint (new Vector3 (0, 1, camera.farClipPlane))); Vector3 p = camera.ViewportToWorldPoint (new Vector3 (0, 0, camera.farClipPlane)); Gizmos.color = Color.yellow; Gizmos.DrawSphere (p, 1f); }
http://www.xuanyusong.com/archives/3036 http://game.ceeger.com/Script/Camera/Camera.ViewportToWorldPoint.html
原文：http://www.cnblogs.com/nnnnn/p/4548919.html