I have this problem in Island demo.and when i am working unity will crash!what is your idea?
!IsNormalized (dir)
UnityEngine.Camera:ScreenPointToRay(Vector3)
UnityEngine.Camera:ScreenPointToRay(Vector3)
UnityEditor.HandleUtility:GUIPointToWorldRay(Vector2)
UnityEditor.Handles:SetCamera(Camera)
UnityEditor.SceneViewRotation:OnGUI()
UnityEditor.SceneView:OnGUI()
System.Reflection.MonoMethod:InternalInvoke(Object, Object[ ])
System.Reflection.MonoMethod:InternalInvoke(Object, Object[ ])
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[ ], CultureInfo)
System.Reflection.MethodBase:Invoke(Object, Object[ ])
UnityEditor.HostView:Invoke(String)
UnityEditor.DockArea:OnGUI()
[c:\builds\checkouts\branches\unity-2.6.x\Runtime\Geometry\Ray.h line 22]