Calling ClientContext.update() more often. In addition to ClientKit's FixedUpdate(), it's now being called in Update(), LateUpdate(), and VREye's OnPostRender()

Author: DuFF14

OSVR-Unity/Assets/OSVRUnity/src/ClientKit.cs

@@ -102,9 +102,22 @@ void OnEnable()
             void FixedUpdate()
             {
                 EnsureStarted();
+                //Debug.Log("ClientKit FixedUpdate: frame # " + Time.frameCount + " " + Time.time);
+                contextObject.update();
+            }
+          
+            //may seem superfluous. the goal here is to update the client more often to make sure we have the most recent tracker data
+            //this helps reduce latency
+            void Update()
+            {
+                contextObject.update();
+            }
+            //may seem superfluous. the goal here is to update the client more often to make sure we have the most recent tracker data
+            //this helps reduce latency
+            void LateUpdate()
+            {
                 contextObject.update();
             }
-
             void Stop()
             {
                 if (null != contextObject)

OSVR-Unity/Assets/OSVRUnity/src/PoseInterface.cs

@@ -32,15 +32,30 @@ namespace Unity
         /// </summary>
         public class PoseInterface : InterfaceGameObject
         {
+            //private int currentFrame = 0;
+            //private int frameCount = 0;
             new void Start()
             {
                 osvrInterface.RegisterCallback(callback);
+                //currentFrame = Time.frameCount;
+                //frameCount = 0;
             }
 
             private void callback(string source, Vector3 position, Quaternion rotation)
             {
                 transform.localPosition = position;
                 transform.localRotation = rotation;
+                //keeping this here for now for debugging purposes
+                /*if(currentFrame != Time.frameCount)
+                {
+                    Debug.Log("Time.frameCount = " + currentFrame + ", Time.time = " + Time.time + ". Callbacks per frame = " + frameCount);
+                    frameCount = 0;
+                    currentFrame = Time.frameCount;
+                }
+                else
+                {
+                    frameCount++;
+                }*/              
             }
         }
     }

OSVR-Unity/Assets/OSVRUnity/src/VREye.cs

@@ -37,12 +37,14 @@ public class VREye : MonoBehaviour
         {
             #region Private Variables
             private Camera _camera;
+            private ClientKit clientKit;
             #endregion
             #region Public Variables
             public Eye eye;
             public Camera Camera { get { return _camera; } set { _camera = value; } }
             [HideInInspector]
             public Transform cachedTransform;
+            
             #endregion
 
             #region Init
@@ -90,6 +92,10 @@ public void SetEyeRoll(float rollAmount)
             #region Private Methods
             void Init()
             {
+                if(clientKit == null)
+                {
+                    clientKit = GameObject.FindObjectOfType<ClientKit>();
+                }
                 //cache:
                 cachedTransform = transform;
 
@@ -122,6 +128,14 @@ private void SetViewportRects()
                         break;
                 }
             }
+
+            //Called after a camera finishes rendering the scene.
+            //the goal here is to update the client often to make sure we have the most recent tracker data
+            //this helps reduce latency
+            void OnPostRender()
+            {
+                clientKit.context.update();
+            }
             #endregion