From cc1d0af7743d0eb1cace9d142be7a10b7b153332 Mon Sep 17 00:00:00 2001
From: chamberm <maxime.chamberland@usherbrooke.ca>
Date: Wed, 4 Nov 2015 11:42:57 -0500
Subject: [PATCH 1/2] Update README.rst

---
 README.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.rst b/README.rst
index 99e2b4dc..29a5910a 100644
--- a/README.rst
+++ b/README.rst
@@ -20,6 +20,7 @@ Tutorials
 New rs-fMRI and real-time fiber tractography tutorials soon available: `Tutorial Page`_.
 New **video tutorials** of the Fibernavigator are available.
 
+- `Optic radiation`_ : Real-time tractography of the optic radiation using HCP data
 - `Scene navigation`_: how to interact with the 3D view, move planes, etc.
 - `Mesh display and interaction`_: how to create and modify the display of meshes.
 - `Drawing tool`_: how to draw on empty or already existing anatomies.
@@ -72,6 +73,5 @@ All issues have been moved to the new `issue tracker`_. New issues will also be
 .. _Opacity rendering: https://www.youtube.com/watch?v=IzJ537KNpR0
 .. _Image Gallery: http://chamberm.github.io/media.html
 .. _Tutorial Page: http://chamberm.github.io/fibernavigator_single.html
-
-
+.. _Optic radiation: https://www.youtube.com/watch?v=UDFpvyrXNyA
 

From 3797a276312277878e56c0257bdb9614de30ebdb Mon Sep 17 00:00:00 2001
From: Maxime C <maxime.chamberland@usherbrooke.ca>
Date: Fri, 13 Nov 2015 14:42:51 -0500
Subject: [PATCH 2/2] fixed important RTT initialization problem where backward
 and forward directions where not equivalent

---
 src/dataset/RTTFibers.cpp | 14 +++++++++++++-
 src/dataset/RTTFibers.h   |  2 ++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/dataset/RTTFibers.cpp b/src/dataset/RTTFibers.cpp
index 38bcc08f..46250143 100644
--- a/src/dataset/RTTFibers.cpp
+++ b/src/dataset/RTTFibers.cpp
@@ -147,6 +147,8 @@ void RTTFibers::clearFibersRTT()
     m_streamlinesColors.clear();
     m_streamlinesPoints.clear();
 
+    m_storedDir.clear();
+
     if( SceneManager::getInstance()->isUsingVBO() )
     {
         glDeleteBuffers( 2, m_bufferObjectsRTT );
@@ -1500,7 +1502,17 @@ void RTTFibers::performHARDIRTT(Vector seed, int bwdfwd, vector<float>& points,
         if( withinMapThreshold(sticksNumber, currPosition) && !m_stop && absPeak != 0)
         {
             bool initWithDir = RTTrackingHelper::getInstance()->isInitSeed();
-            sticks = pickDirection(m_pMaximasInfo->getMainDirData()->at(sticksNumber), initWithDir, currPosition); 
+
+            if(bwdfwd != -1)
+            {
+                sticks = pickDirection(m_pMaximasInfo->getMainDirData()->at(sticksNumber), initWithDir, currPosition); 
+                m_storedDir = sticks;
+            }
+            else
+            { 
+                sticks = m_storedDir;
+            }
+
 
             currDirection.x = flippedAxes.x * sticks[0];
             currDirection.y = flippedAxes.y * sticks[1];
diff --git a/src/dataset/RTTFibers.h b/src/dataset/RTTFibers.h
index 62712ee2..f8d9f828 100644
--- a/src/dataset/RTTFibers.h
+++ b/src/dataset/RTTFibers.h
@@ -127,6 +127,8 @@ class RTTFibers
 
     std::vector<float> m_streamlinesPoints; // Points to be rendered Forward
 	std::vector<float> m_streamlinesColors; //Color (local directions)Forward
+
+    std::vector<float> m_storedDir;
     
 
 	float m_alpha;