diff --git a/autoscoper/src/ui/AutoscoperMainWindow.cpp b/autoscoper/src/ui/AutoscoperMainWindow.cpp
index e97f8275..f9e8e1e8 100644
--- a/autoscoper/src/ui/AutoscoperMainWindow.cpp
+++ b/autoscoper/src/ui/AutoscoperMainWindow.cpp
@@ -1130,6 +1130,7 @@ bool AutoscoperMainWindow::openTrial(QString filename){
   try {
     Trial * trial = new Trial(filename.toStdString().c_str());
     tracker->load(*trial);
+    tracker->SetViewportLogic(this->use_new_viewport_logic_);
     delete trial;
 
     trial_filename = filename.toStdString().c_str();
@@ -1721,6 +1722,13 @@ void AutoscoperMainWindow::on_actionLoad_xml_batch_triggered(bool checked){
     }
 }
 
+void AutoscoperMainWindow::on_actionUse_New_Viewport_Logic_triggered(bool checked) {
+  this->use_new_viewport_logic_ = checked;
+  if (tracker != NULL) {
+    tracker->SetViewportLogic(checked);
+  }
+}
+
 
 //Edit menu
 void AutoscoperMainWindow::on_actionUndo_triggered(bool checked){
diff --git a/autoscoper/src/ui/AutoscoperMainWindow.h b/autoscoper/src/ui/AutoscoperMainWindow.h
index 0e1496b7..b4e5168d 100644
--- a/autoscoper/src/ui/AutoscoperMainWindow.h
+++ b/autoscoper/src/ui/AutoscoperMainWindow.h
@@ -159,6 +159,7 @@ class AutoscoperMainWindow : public QMainWindow{
     Tracker * tracker;
     GLTracker * gltracker;
     QOpenGLContext* shared_glcontext;
+    bool use_new_viewport_logic_ = false;
 
     //Manipulator
     std::vector <Manip3D *> manipulator;
@@ -222,6 +223,7 @@ class AutoscoperMainWindow : public QMainWindow{
     void on_actionSave_Test_Sequence_triggered(bool checked);
     void on_actionSaveForBatch_triggered(bool checked);
     void on_actionLoad_xml_batch_triggered(bool checked);
+    void on_actionUse_New_Viewport_Logic_triggered(bool checked);
 
     //Edit
     void on_actionUndo_triggered(bool checked);
diff --git a/autoscoper/src/ui/ui-files/AutoscoperMainWindow.ui b/autoscoper/src/ui/ui-files/AutoscoperMainWindow.ui
index 601711f8..648b849c 100644
--- a/autoscoper/src/ui/ui-files/AutoscoperMainWindow.ui
+++ b/autoscoper/src/ui/ui-files/AutoscoperMainWindow.ui
@@ -432,6 +432,8 @@ Dialog</string>
     <addaction name="separator"/>
     <addaction name="actionSave_Test_Sequence"/>
     <addaction name="separator"/>
+    <addaction name="actionUse_New_Viewport_Logic"/>
+    <addaction name="separator"/>
     <addaction name="actionQuit"/>
    </widget>
    <widget class="QMenu" name="menuEdit">
@@ -717,6 +719,14 @@ Dialog</string>
     <string>Thick Line Mode</string>
    </property>
   </action>
+  <action name="actionUse_New_Viewport_Logic">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>Use New Viewport Logic</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="../autoscoper_resource.qrc"/>
diff --git a/libautoscoper/src/Tracker.cpp b/libautoscoper/src/Tracker.cpp
index 054ff19a..04c43e9a 100644
--- a/libautoscoper/src/Tracker.cpp
+++ b/libautoscoper/src/Tracker.cpp
@@ -601,8 +601,12 @@ std::vector <double> Tracker::trackFrame(unsigned int volumeID, double* xyzypr)
 
       // Calculate the size of the image to render based on the viewport
       // For more information, see https://github.com/BrownBiomechanics/Autoscoper/issues/203
-      unsigned render_width = (trial_.render_width * (viewport[2] + 1)) / 2;
-      unsigned render_height = (trial_.render_height * (viewport[3] + 1)) / 2;
+      unsigned render_width = viewport[2] * trial_.render_width / views_[i]->camera()->viewport()[2];
+      unsigned render_height = viewport[3] * trial_.render_height / views_[i]->camera()->viewport()[3];
+      if (this->use_new_viewport_logic_) {
+        render_width = ((trial_.render_width * (viewport[2] + 1)) / 2) - ((trial_.render_width * (viewport[0] + 1)) / 2); // (width * (max_x + 1)) / 2 - (width * (min_x + 1)) / 2
+        render_height = ((trial_.render_height * (viewport[3] + 1)) / 2) - ((trial_.render_height * (viewport[1] + 1)) / 2); // (height * (max_y + 1)) / 2 - (height * (min_y + 1)) / 2
+      }
 
       if (render_width > trial_.render_width || render_height > trial_.render_height) {
         throw std::runtime_error("Tracker::trackFrame(): Rendered image is larger than the viewport buffer!\n" + std::to_string(render_width) + " > " + std::to_string(trial_.render_width) + " || " + std::to_string(render_height) + " > " + std::to_string(trial_.render_height));
@@ -882,6 +886,9 @@ void Tracker::getFullDRR(unsigned int volumeID) const
   }
 }
 
+void Tracker::SetViewportLogic(bool use_new) {
+  this->use_new_viewport_logic_ = use_new;
+}
 
 
 
diff --git a/libautoscoper/src/Tracker.hpp b/libautoscoper/src/Tracker.hpp
index 2156a634..03c34bd4 100644
--- a/libautoscoper/src/Tracker.hpp
+++ b/libautoscoper/src/Tracker.hpp
@@ -101,6 +101,7 @@ namespace xromm
     //std::vector<double> trackImplantFrame(unsigned int volumeID, double * xyzypr) const;
 
     void getFullDRR(unsigned int volumeID) const;
+    void SetViewportLogic(bool use_new);
 
 
   private:
@@ -111,6 +112,7 @@ namespace xromm
     Trial trial_;
     std::vector <gpu::VolumeDescription*> volumeDescription_;
     std::vector <gpu::View*> views_;
+    bool use_new_viewport_logic_ = false;
 #if defined(Autoscoper_RENDERING_USE_CUDA_BACKEND)
     Buffer* rendered_drr_;
     Buffer* rendered_rad_;