diff --git a/src/osg/ColorMatrix.cpp b/src/osg/ColorMatrix.cpp
index 6756d33d6..aa45962a6 100644
--- a/src/osg/ColorMatrix.cpp
+++ b/src/osg/ColorMatrix.cpp
@@ -17,10 +17,10 @@ void ColorMatrix::apply(State&) const
 {
 //    std::cout<<"applying matrix"<<_matrix<<std::endl;
     static bool s_ARB_imaging = isGLExtensionSupported("GL_ARB_imaging");
-	if (s_ARB_imaging)
-	{
-		glMatrixMode( GL_COLOR );
-		glLoadMatrixf( _matrix.ptr() );
-		glMatrixMode( GL_MODELVIEW );
-	}
+    if (s_ARB_imaging)
+    {
+        glMatrixMode( GL_COLOR );
+        glLoadMatrixf( _matrix.ptr() );
+        glMatrixMode( GL_MODELVIEW );
+    }
 }
diff --git a/src/osgUtil/SceneView.cpp b/src/osgUtil/SceneView.cpp
index 493000142..498783972 100644
--- a/src/osgUtil/SceneView.cpp
+++ b/src/osgUtil/SceneView.cpp
@@ -344,13 +344,21 @@ void SceneView::draw()
                 osg::ColorMask* green = new osg::ColorMask;
 
                 red->setMask(true,false,false,true);
+                green->setMask(false,true,true,true);
+                
+                // draw right eye.
+                _globalState->setAttribute(red);
                 _renderStage->setColorMask(red);
                 _renderStage->setCamera(left_camera.get());
                 _renderStage->draw(*_state,previous);
 
-                green->setMask(false,true,true,true);
-                _renderStage->setColorMask(green);
+                // need to tell the rendering stage that it can be
+                // called again in this frame.
                 _renderStage->_stageDrawnThisFrame = false;
+
+                // draw left eye.
+                _globalState->setAttribute(green);
+                _renderStage->setColorMask(green);
                 _renderStage->setCamera(right_camera.get());
                 _renderStage->draw(*_state,previous);