diff --git a/include/osgPresentation/deprecated/SlideShowConstructor b/include/osgPresentation/deprecated/SlideShowConstructor
index d5d59555b..ae10b1e5c 100644
--- a/include/osgPresentation/deprecated/SlideShowConstructor
+++ b/include/osgPresentation/deprecated/SlideShowConstructor
@@ -291,6 +291,13 @@ public:
             MaximumIntensityProjection
         };
 
+        enum Technique
+        {
+            FixedFunction,
+            RayTraced,
+            MultiPass
+        };
+
         VolumeData():
             shadingModel(Standard),
             useTabbedDragger(false),
@@ -300,7 +307,8 @@ public:
             cutoffValue("0.1"),
             sampleDensityValue("0.005"),
             colorSpaceOperation(osg::NO_COLOR_SPACE_OPERATION),
-            colorModulate(1.0f,1.0f,1.0f,1.0f)
+            colorModulate(1.0f,1.0f,1.0f,1.0f),
+            technique(RayTraced)
         {
         }
 
@@ -318,6 +326,7 @@ public:
 
         osg::ColorSpaceOperation                colorSpaceOperation;
         osg::Vec4                               colorModulate;
+        Technique                               technique;
     };
 
 
diff --git a/src/osgPlugins/p3d/ReaderWriterP3D.cpp b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
index a9cfaa587..de9cc3f8b 100644
--- a/src/osgPlugins/p3d/ReaderWriterP3D.cpp
+++ b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
@@ -1247,6 +1247,14 @@ void ReaderWriterP3DXML::parseVolume(osgPresentation::SlideShowConstructor& cons
         else if (technique=="light") volumeData.shadingModel =  osgPresentation::SlideShowConstructor::VolumeData::Light;
     }
 
+    std::string renderer;
+    if (getProperty(cur, "renderer", renderer))
+    {
+        if      (renderer=="FixedFunction") volumeData.technique =  osgPresentation::SlideShowConstructor::VolumeData::FixedFunction;
+        else if (renderer=="RayTraced") volumeData.technique =  osgPresentation::SlideShowConstructor::VolumeData::RayTraced;
+        else if (renderer=="MultiPass") volumeData.technique =  osgPresentation::SlideShowConstructor::VolumeData::MultiPass;
+    }
+
     if (getProperty(cur, "alpha", volumeData.alphaValue)) {}
     if (getProperty(cur, "cutoff", volumeData.cutoffValue)) {}
     if (getProperty(cur, "region", volumeData.region)) {}
diff --git a/src/osgPresentation/deprecated/SlideShowConstructor.cpp b/src/osgPresentation/deprecated/SlideShowConstructor.cpp
index 2f5c08d31..9a9207aac 100644
--- a/src/osgPresentation/deprecated/SlideShowConstructor.cpp
+++ b/src/osgPresentation/deprecated/SlideShowConstructor.cpp
@@ -49,8 +49,10 @@
 #include <osgFX/SpecularHighlights>
 
 #include <osgVolume/Volume>
+#include <osgVolume/VolumeScene>
 #include <osgVolume/RayTracedTechnique>
 #include <osgVolume/FixedFunctionTechnique>
+#include <osgVolume/MultipassTechnique>
 
 #include <sstream>
 #include <algorithm>
@@ -2660,11 +2662,32 @@ void SlideShowConstructor::addVolume(const std::string& filename, const Position
         }
 
         layer->addProperty(sp);
-        tile->setVolumeTechnique(new osgVolume::RayTracedTechnique);
+
+        switch(volumeData.technique)
+        {
+            case(VolumeData::FixedFunction):
+                tile->setVolumeTechnique(new osgVolume::FixedFunctionTechnique);
+                break;
+            case(VolumeData::RayTraced):
+                tile->setVolumeTechnique(new osgVolume::RayTracedTechnique);
+                break;
+            case(VolumeData::MultiPass):
+                tile->setVolumeTechnique(new osgVolume::MultipassTechnique);
+                break;
+        }
+
         tile->addEventCallback(new osgVolume::PropertyAdjustmentCallback());
     }
 
-
+    if (dynamic_cast<osgVolume::MultipassTechnique*>(tile->getVolumeTechnique())!=0)
+    {
+        if (dynamic_cast<osgVolume::VolumeScene*>(_root.get())==0)
+        {
+            osg::ref_ptr<osgVolume::VolumeScene> volumeScene = new osgVolume::VolumeScene;
+            volumeScene->addChild(_root.get());
+            _root = volumeScene.get();
+        }
+    }
 
 
     osg::ref_ptr<osg::Node> model = volume.get();