From 1dad443898daaa052a71f5c9d6ce029d3ae38206 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 1 Nov 2002 14:16:58 +0000
Subject: [PATCH] Michael Gronage fix for aspect ratio in split stereo.

---
 src/osgUtil/SceneView.cpp | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/osgUtil/SceneView.cpp b/src/osgUtil/SceneView.cpp
index a0e84d4e3..174d10323 100644
--- a/src/osgUtil/SceneView.cpp
+++ b/src/osgUtil/SceneView.cpp
@@ -205,8 +205,27 @@ void SceneView::cull()
     
     if (_camera.valid())
     {
-        _camera->adjustAspectRatio(_viewport->aspectRatio());
-        
+
+        if (_displaySettings.valid() && _displaySettings->getStereo())
+        {
+            switch(_displaySettings->getStereoMode())
+            {
+            case(osg::DisplaySettings::HORIZONTAL_SPLIT):
+                _camera->adjustAspectRatio(0.5*_viewport->aspectRatio());
+                break;
+            case(osg::DisplaySettings::VERTICAL_SPLIT):
+                _camera->adjustAspectRatio(2*_viewport->aspectRatio());
+                break;
+            default:
+                _camera->adjustAspectRatio(_viewport->aspectRatio());
+                break;
+            }
+        }
+        else
+        {
+            _camera->adjustAspectRatio(_viewport->aspectRatio());
+        }
+       
         if (_displaySettings.valid())
             _camera->setScreenDistance(_displaySettings->getScreenDistance());