public HEU_SessionSyncData GetOrCreateSessionSync()
{
if (_sessionSync == null)
{
_sessionSync = new HEU_SessionSyncData();
}
return(_sessionSync);
}
/// <summary>
/// Attempts to connect to running instance of Houdini with SessionSync enabled,
/// with CONNECTION_ATTEMPT_RATE delay between attempts. Presuming that Houdini was just,
/// launched this might take a few tries. Times out if unsuccessful after CONNECTION_TIME_OUT
/// time.
/// </summary>
void UpdateConnecting(HEU_SessionSyncData syncData)
{
if (syncData == null || syncData.SyncStatus != HEU_SessionSyncData.Status.Connecting)
{
return;
}
// Attempt connection after waiting for a bit.
if (Time.realtimeSinceStartup - syncData._timeLastUpdate >= CONNECTION_ATTEMPT_RATE)
{
if (InternalConnect(_sessionMode, _pipeName,
HEU_PluginSettings.Session_Localhost, _port,
HEU_PluginSettings.Session_AutoClose,
HEU_PluginSettings.Session_Timeout, false))
{
Log("Initializing...");
syncData.SyncStatus = HEU_SessionSyncData.Status.Initializing;
try
{
HEU_SessionManager.InitializeDefaultSession();
HEU_SessionManager.GetDefaultSession().GetSessionData().SetSessionSync(syncData);
syncData.SyncStatus = HEU_SessionSyncData.Status.Connected;
Log("Connected!");
}
catch (System.Exception ex)
{
syncData.SyncStatus = HEU_SessionSyncData.Status.Stopped;
Log("Connection errored!");
Log(ex.ToString());
Debug.Log(ex.ToString());
}
finally
{
// Clear this to get out of the connection state
_connectionSyncData = null;
}
}
else if (Time.realtimeSinceStartup - syncData._timeStartConnection >= CONNECTION_TIME_OUT)
{
syncData.SyncStatus = HEU_SessionSyncData.Status.Stopped;
Log("Timed out trying to connect to Houdini."
+ "\nCheck if Houdini is running and SessionSync is enabled."
+ "\nCheck port or pipe name are correct by comparing with Houdini SessionSync panel.");
}
else
{
// Try again in a bit
syncData._timeLastUpdate = Time.realtimeSinceStartup;
}
}
}
/// <summary>
/// Connect to a running instance of Houdini with SessionSync enabled.
/// </summary>
void ConnectSessionSync(HEU_SessionSyncData syncData)
{
if (syncData != null && syncData.SyncStatus != HEU_SessionSyncData.Status.Stopped)
{
return;
}
Log("Connecting To Houdini...");
HEU_SessionManager.RecreateDefaultSessionData();
if (syncData == null)
{
HEU_SessionData sessionData = HEU_SessionManager.GetSessionData();
if (sessionData != null)
{
syncData = sessionData.GetOrCreateSessionSync();
}
else
{
syncData = new HEU_SessionSyncData();
}
}
bool result = InternalConnect(_sessionMode, _pipeName,
HEU_PluginSettings.Session_Localhost, _port,
HEU_PluginSettings.Session_AutoClose,
HEU_PluginSettings.Session_Timeout,
true);
if (result)
{
try
{
HEU_SessionManager.InitializeDefaultSession();
HEU_SessionManager.GetDefaultSession().GetSessionData().SetSessionSync(syncData);
syncData.SyncStatus = HEU_SessionSyncData.Status.Connected;
Log("Connected!");
}
catch (HEU_HoudiniEngineError ex)
{
syncData.SyncStatus = HEU_SessionSyncData.Status.Stopped;
Log("Connection errored!");
Log(ex.ToString());
}
}
else
{
Log("Connection failed!");
}
}
/// <summary>
/// Upload the local HAPI_SessionSyncInfo to Houdini Engine.
/// </summary>
void UploadSessionSyncInfo(HEU_SessionBase session, HEU_SessionSyncData syncData)
{
if (session == null)
{
session = HEU_SessionManager.GetDefaultSession();
if (session == null || !session.IsSessionValid())
{
return;
}
}
session.SetSessionSyncInfo(ref syncData._syncInfo);
}
/// <summary>
/// Returns the local HEU_SessionSyncData state.
/// </summary>
HEU_SessionSyncData GetSessionSyncData()
{
HEU_SessionSyncData syncData = _connectionSyncData;
if (syncData == null)
{
HEU_SessionData sessionData = HEU_SessionManager.GetSessionData();
if (sessionData != null)
{
// On domain reload, re-acquire serialized SessionSync
// if session exists
syncData = sessionData.GetOrCreateSessionSync();
}
}
return(syncData);
}
/// <summary>
/// Callback to update the local SessionSync state.
/// </summary>
void UpdateSync()
{
HEU_SessionSyncData syncData = GetSessionSyncData();
if (syncData != null)
{
if (syncData.SyncStatus == HEU_SessionSyncData.Status.Connecting)
{
UpdateConnecting(syncData);
}
else if (syncData.SyncStatus == HEU_SessionSyncData.Status.Connected)
{
UpdateConnected(syncData);
}
}
}
/// <summary>
/// Update the local SessionSync state while connected to Houdini.
/// Synchronizes viewport if enabled.
/// Disconnects if Houdini Engine session is not valid.
/// </summary>
void UpdateConnected(HEU_SessionSyncData syncData)
{
if (!HEU_PluginSettings.SessionSyncAutoCook)
{
return;
}
HEU_SessionBase session = HEU_SessionManager.GetDefaultSession();
if (session == null || !session.IsSessionValid() || !session.IsSessionSync())
{
return;
}
if (session.ConnectionState == SessionConnectionState.CONNECTED)
{
// Get latest SessionSync info from Houdini Engine to synchronize
// local state.
DownloadSessionSyncInfo(null, syncData);
// Use the above call to check validity of the session.
// Note that once HAPI_IsSessionValid is improved, we might just use that.
if (session.LastCallResultCode == HAPI_Result.HAPI_RESULT_INVALID_SESSION)
{
// Bad session
Log("Session is invalid. Disconnecting.");
Disconnect(syncData);
return;
}
if (syncData._syncInfo.syncViewport)
{
UpdateViewport(session, syncData);
}
}
else
{
if (syncData.SyncStatus == HEU_SessionSyncData.Status.Connected)
{
// Bad session
Log("Session is invalid. Disconnecting.");
Disconnect(syncData);
}
}
}
/// <summary>
/// Disconnect from SessionSync and close session.
/// </summary>
void Disconnect(HEU_SessionSyncData syncData)
{
if (syncData != null)
{
syncData.SyncStatus = HEU_SessionSyncData.Status.Stopped;
// Store the sync info as it gets cleared in the session below
_connectionSyncData = syncData;
}
if (HEU_SessionManager.CloseDefaultSession())
{
Log("Connection closed!");
}
else
{
Log("Failed to close session! ");
}
}
/// <summary>
/// Download the latest HAPI_SessionSyncInfo from Houdini Engine
/// to update the local state.
/// </summary>
void DownloadSessionSyncInfo(HEU_SessionBase session, HEU_SessionSyncData syncData)
{
if (session == null)
{
session = HEU_SessionManager.GetDefaultSession();
if (session == null || !session.IsSessionValid())
{
return;
}
}
HAPI_SessionSyncInfo syncInfo = new HAPI_SessionSyncInfo();
if (session.GetSessionSyncInfo(ref syncInfo))
{
if (HEU_HAPIUtility.IsSessionSyncEqual(ref syncInfo, ref syncData._syncInfo))
{
Repaint();
}
syncData._syncInfo = syncInfo;
}
}
/// <summary>
/// Launch Houdini with SessionSync enabled and automatically connect to it.
/// </summary>
void StartAndConnectToHoudini(HEU_SessionSyncData syncData)
{
if (syncData != null && syncData.SyncStatus != HEU_SessionSyncData.Status.Stopped)
{
return;
}
if (!OpenHoudini())
{
return;
}
// Now attempt to connect to it by moving into Connecting state
HEU_SessionManager.RecreateDefaultSessionData();
if (syncData == null)
{
HEU_SessionData sessionData = HEU_SessionManager.GetSessionData();
if (sessionData != null)
{
syncData = sessionData.GetOrCreateSessionSync();
}
else
{
syncData = new HEU_SessionSyncData();
}
syncData._validForConnection = true;
}
syncData.SyncStatus = HEU_SessionSyncData.Status.Connecting;
_connectionSyncData = syncData;
Log("Connecting...");
syncData._timeStartConnection = Time.realtimeSinceStartup;
syncData._timeLastUpdate = Time.realtimeSinceStartup;
}
/// <summary>
/// Unity callback to draw this UI.
/// </summary>
void OnGUI()
{
SetupUI();
HEU_SessionSyncData syncData = GetSessionSyncData();
EditorGUI.BeginChangeCheck();
bool bSessionStarted = (syncData != null && syncData.SyncStatus != HEU_SessionSyncData.Status.Stopped);
bool bSessionCanStart = !bSessionStarted;
if (bSessionCanStart)
{
// Only able to start a session if no session exists.
HEU_SessionBase session = HEU_SessionManager.GetDefaultSession();
if (session != null && session.IsSessionValid())
{
bSessionCanStart = false;
}
}
HEU_HoudiniAssetUI.DrawHeaderSection();
// Draw SessionSync status.
if (syncData != null)
{
if (syncData.SyncStatus == HEU_SessionSyncData.Status.Stopped)
{
if (!bSessionCanStart)
{
EditorGUILayout.LabelField("Another session already running. Disconnect it to start SessionSync.");
}
else
{
EditorGUILayout.LabelField("Status: " + syncData.SyncStatus);
}
}
else
{
EditorGUILayout.LabelField("Status: " + syncData.SyncStatus);
}
}
else
{
if (!bSessionCanStart)
{
EditorGUILayout.LabelField("Another session already running. Disconnect it to start SessionSync.");
}
else
{
EditorGUILayout.LabelField("No active session.");
}
}
EditorGUILayout.Separator();
EditorGUI.indentLevel++;
// Draw initial connection buttons (Start, Connect)
using (new EditorGUILayout.HorizontalScope())
{
using (new EditorGUI.DisabledScope(bSessionStarted || !bSessionCanStart))
{
if (GUILayout.Button("Start Houdini"))
{
StartAndConnectToHoudini(syncData);
}
else if (GUILayout.Button("Connect to Houdini"))
{
ConnectSessionSync(syncData);
}
}
}
using (new EditorGUI.DisabledScope((syncData == null || !bSessionStarted) && bSessionCanStart))
{
if (GUILayout.Button("Disconnect"))
{
Disconnect(syncData);
}
}
EditorGUILayout.Separator();
// Draw Connection Settings
EditorGUILayout.LabelField("Connection Settings");
using (new EditorGUI.DisabledScope(bSessionStarted))
{
SessionMode newSessionMode = (SessionMode)EditorGUILayout.EnumPopup("Type", _sessionMode);
if (_sessionMode != newSessionMode)
{
_sessionMode = newSessionMode;
HEU_PluginSettings.Session_Mode = newSessionMode;
}
EditorGUI.indentLevel++;
if (_sessionMode == SessionMode.Pipe)
{
string newPipeName = EditorGUILayout.DelayedTextField("Pipe Name", _pipeName);
if (_pipeName != newPipeName)
{
HEU_PluginSettings.Session_PipeName = newPipeName;
_pipeName = newPipeName;
}
}
else if (_sessionMode == SessionMode.Socket)
{
int newPort = EditorGUILayout.DelayedIntField("Port", _port);
HEU_PluginSettings.Session_Port = newPort;
if (_port != newPort)
{
HEU_PluginSettings.Session_Port = newPort;
_port = newPort;
}
}
EditorGUI.indentLevel--;
}
EditorGUILayout.Separator();
// The rest requires syncData
// Synchronization settings, and new nodes
if (syncData != null)
{
using (new EditorGUI.DisabledScope(syncData.SyncStatus != HEU_SessionSyncData.Status.Connected))
{
EditorGUILayout.LabelField("Synchronization Settings");
EditorGUI.indentLevel++;
HEU_PluginSettings.SessionSyncAutoCook = HEU_EditorUI.DrawToggleLeft(HEU_PluginSettings.SessionSyncAutoCook, "Sync With Houdini Cook");
bool enableHoudiniTime = HEU_EditorUI.DrawToggleLeft(syncData._syncInfo.cookUsingHoudiniTime, "Cook Using Houdini Time");
if (syncData._syncInfo.cookUsingHoudiniTime != enableHoudiniTime)
{
syncData._syncInfo.cookUsingHoudiniTime = enableHoudiniTime;
UploadSessionSyncInfo(null, syncData);
}
bool enableSyncViewport = HEU_EditorUI.DrawToggleLeft(syncData._syncInfo.syncViewport, "Sync Viewport");
if (syncData._syncInfo.syncViewport != enableSyncViewport)
{
syncData._syncInfo.syncViewport = enableSyncViewport;
UploadSessionSyncInfo(null, syncData);
}
EditorGUI.indentLevel--;
}
EditorGUILayout.Separator();
EditorGUILayout.LabelField("New Node");
using (new EditorGUI.DisabledScope(syncData.SyncStatus != HEU_SessionSyncData.Status.Connected))
{
EditorGUI.indentLevel++;
syncData._newNodeName = EditorGUILayout.TextField("Name", syncData._newNodeName);
syncData._nodeTypeIndex = EditorGUILayout.Popup("Type", syncData._nodeTypeIndex, _nodeTypesLabels);
using (new EditorGUI.DisabledGroupScope(string.IsNullOrEmpty(syncData._newNodeName)))
{
using (new EditorGUILayout.VerticalScope())
{
if (GUILayout.Button("Create"))
{
if (syncData._nodeTypeIndex >= 0 && syncData._nodeTypeIndex < 3)
{
HEU_NodeSync.CreateNodeSync(null, _nodeTypes[syncData._nodeTypeIndex],
syncData._newNodeName);
}
else if (syncData._nodeTypeIndex == 3)
{
CreateCurve(syncData._newNodeName);
}
else if (syncData._nodeTypeIndex == 4)
{
CreateInput(syncData._newNodeName);
}
}
if (GUILayout.Button("Load NodeSync"))
{
LoadNodeSyncDialog(syncData._newNodeName);
}
}
}
EditorGUI.indentLevel--;
}
EditorGUILayout.Separator();
// Log
using (new EditorGUILayout.VerticalScope(_backgroundStyle))
{
using (new EditorGUILayout.HorizontalScope())
{
EditorGUILayout.PrefixLabel(_eventMessageContent);
if (GUILayout.Button("Clear"))
{
ClearLog();
}
}
string logMsg = GetLog();
using (var scrollViewScope = new EditorGUILayout.ScrollViewScope(_eventMessageScrollPos, GUILayout.Height(120)))
{
_eventMessageScrollPos = scrollViewScope.scrollPosition;
GUILayout.Label(logMsg, _eventMessageStyle);
}
}
}
EditorGUI.indentLevel--;
if (EditorGUI.EndChangeCheck() && syncData != null)
{
HEU_SessionBase sessionBase = HEU_SessionManager.GetDefaultSession();
if (sessionBase != null)
{
HEU_SessionManager.SaveAllSessionData();
}
}
}
/// <summary>
/// Synchronize the viewport between HAPI and Unity.
/// </summary>
void UpdateViewport(HEU_SessionBase session, HEU_SessionSyncData syncData)
{
SceneView sceneView = SceneView.lastActiveSceneView;
if (sceneView == null)
{
return;
}
// Get the latest viewport from HAPI, and check it agianst last update.
HAPI_Viewport viewHAPI = new HAPI_Viewport(true);
session.GetViewport(ref viewHAPI);
if (!HEU_HAPIUtility.IsViewportEqual(ref viewHAPI, ref syncData._viewportHAPI))
{
// HAPI has changed. Update local viewport.
Transform target = sceneView.camera.transform;
// Account for left-handed coordinate system
Vector3 pivot = new Vector3(-viewHAPI.position[0], viewHAPI.position[1], viewHAPI.position[2]);
Quaternion rotation = new Quaternion(viewHAPI.rotationQuaternion[0],
viewHAPI.rotationQuaternion[1], viewHAPI.rotationQuaternion[2],
viewHAPI.rotationQuaternion[3]);
Vector3 euler = rotation.eulerAngles;
euler.y = -euler.y;
euler.z = -euler.z;
// Flip the camera direction for Unity camera
rotation = Quaternion.Euler(euler) * Quaternion.Euler(0, 180f, 0);
// TODO: use viewHAPI.offset to set camera distance
// Unfortuantely no direct API to set the camera distance in Unity
sceneView.LookAtDirect(pivot, rotation);
sceneView.Repaint();
// Store HAPI viewport for comparison on next update
syncData._viewportHAPI = viewHAPI;
syncData._viewportLocal = viewHAPI;
syncData._viewportJustUpdated = true;
}
else
{
// HAPI hasn't changed, so let's see if local viewport has
Vector3 pivot = sceneView.pivot;
Quaternion rotation = sceneView.rotation;
float localDistance = sceneView.cameraDistance;
// Generate the local HAPI_Viewport
HAPI_Viewport viewLocal = new HAPI_Viewport(true);
// Account for left-handed coordinate system
viewLocal.position[0] = -pivot.x;
viewLocal.position[1] = pivot.y;
viewLocal.position[2] = pivot.z;
// Flip the camera direction for Unity camera
rotation = rotation * Quaternion.Euler(0, 180f, 0);
Vector3 euler = rotation.eulerAngles;
euler.y = -euler.y;
euler.z = -euler.z;
rotation = Quaternion.Euler(euler);
viewLocal.rotationQuaternion[0] = rotation.x;
viewLocal.rotationQuaternion[1] = rotation.y;
viewLocal.rotationQuaternion[2] = rotation.z;
viewLocal.rotationQuaternion[3] = rotation.w;
viewLocal.offset = syncData._viewportHAPI.offset;
if (!HEU_HAPIUtility.IsViewportEqual(ref viewLocal, ref syncData._viewportLocal))
{
// Always store local viewport for comparison on next update
syncData._viewportLocal = viewLocal;
if (syncData._viewportJustUpdated)
{
// Unity's SceneView internally updates the
// viewport after setting it, so this makes sure
// to update and store the latest change locally,
// and skip sending it to HAPI
syncData._viewportJustUpdated = false;
}
else
{
session.SetViewport(ref viewLocal);
// Store HAPI viewport for comparison on next update
syncData._viewportHAPI = viewLocal;
}
//Debug.Log("Setting HAPI (from local)");
//Debug.LogFormat("Pos: {0}, {1}, {2}", viewLocal.position[0], viewLocal.position[1], viewLocal.position[2]);
//Debug.LogFormat("Rot: {0}, {1}, {2}, {3}", viewLocal.rotationQuaternion[0],
//viewLocal.rotationQuaternion[1], viewLocal.rotationQuaternion[2], viewLocal.rotationQuaternion[3]);
//Debug.LogFormat("Dis: {0}, sceneView.camDist: {1}", viewLocal.offset, sceneView.cameraDistance);
}
}
}
public void SetSessionSync(HEU_SessionSyncData syncData)
{
_sessionSync = syncData;
}