Add smoothing to translation and rotation for HandDraggable script

Author: thebanjomatic

Assets/HoloToolkit/Input/Scripts/Interactions/HandDraggable.cs

@@ -42,6 +42,14 @@ public enum RotationModeEnum
 
         public RotationModeEnum RotationMode = RotationModeEnum.Default;
 
+        [Tooltip("Controls the speed at which the object will interpolate toward the desired position")]
+        [Range(0.01f, 1.0f)]
+        public float PositionLerpSpeed = 0.2f;
+
+        [Tooltip("Controls the speed at which the object will interpolate toward the desired rotation")]
+        [Range(0.01f, 1.0f)]
+        public float RotationLerpSpeed = 0.2f;
+
         public bool IsDraggingEnabled = true;
 
         private Camera mainCamera;
@@ -214,9 +222,10 @@ private void UpdateDragging()
             }
 
             // Apply Final Position
-            HostTransform.position = draggingPosition + mainCamera.transform.TransformDirection(objRefGrabPoint);
+            HostTransform.position = Vector3.Lerp(HostTransform.position, draggingPosition + mainCamera.transform.TransformDirection(objRefGrabPoint), PositionLerpSpeed);
             // Apply Final Rotation
-            HostTransform.rotation = draggingRotation;
+            HostTransform.rotation = Quaternion.Lerp(HostTransform.rotation, draggingRotation, RotationLerpSpeed);
+
             if (RotationMode == RotationModeEnum.OrientTowardUserAndKeepUpright)		
             {		
                 Quaternion upRotation = Quaternion.FromToRotation(HostTransform.up, Vector3.up);