diff --git a/src/osgVolume/MultipassTechnique.cpp b/src/osgVolume/MultipassTechnique.cpp
index 72a90afa2..875752d24 100644
--- a/src/osgVolume/MultipassTechnique.cpp
+++ b/src/osgVolume/MultipassTechnique.cpp
@@ -390,9 +390,9 @@ void MultipassTechnique::init()
         {
             texture3D->setInternalFormatMode(internalFormatMode);
         }
-        texture3D->setImage(image_3d);
+        texture3D->setImage(image_3d.get());
 
-        stateset->setTextureAttributeAndModes(volumeTextureUnit, texture3D, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
+        stateset->setTextureAttributeAndModes(volumeTextureUnit, texture3D.get(), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
 
         osg::ref_ptr<osg::Uniform> baseTextureSampler = new osg::Uniform("volumeTexture", int(volumeTextureUnit));
         stateset->addUniform(baseTextureSampler.get());
@@ -661,7 +661,7 @@ class RTTBackfaceCameraCullCallback : public osg::NodeCallback
         {
             osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(nv);
 
-            cv->pushProjectionMatrix(_tileData->projectionMatrix);
+            cv->pushProjectionMatrix(_tileData->projectionMatrix.get());
 
             _mt->backfaceSubgraphCullTraversal(cv);
 
diff --git a/src/osgVolume/RayTracedTechnique.cpp b/src/osgVolume/RayTracedTechnique.cpp
index 31f8ea1a5..f014f3ab9 100644
--- a/src/osgVolume/RayTracedTechnique.cpp
+++ b/src/osgVolume/RayTracedTechnique.cpp
@@ -165,7 +165,7 @@ void RayTracedTechnique::init()
         osg::ref_ptr<osg::Shader> vertexShader = osgDB::readRefShaderFile(osg::Shader::VERTEX, "shaders/volume.vert");
         if (vertexShader.valid())
         {
-            program->addShader(vertexShader);
+            program->addShader(vertexShader.get());
         }
         else
         {
@@ -285,7 +285,7 @@ void RayTracedTechnique::init()
                 osg::ref_ptr<osg::Shader> fragmentShader = osgDB::readRefShaderFile(osg::Shader::FRAGMENT, "shaders/volume_tf_iso.frag");
                 if (fragmentShader.valid())
                 {
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
@@ -300,7 +300,7 @@ void RayTracedTechnique::init()
                 {
                     OSG_INFO<<"Shader found"<<std::endl;
 
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
@@ -320,7 +320,7 @@ void RayTracedTechnique::init()
                 osg::ref_ptr<osg::Shader> fragmentShader = osgDB::readRefShaderFile(osg::Shader::FRAGMENT, "shaders/volume_lit_tf.frag");
                 if (fragmentShader.valid())
                 {
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
@@ -334,7 +334,7 @@ void RayTracedTechnique::init()
                 osg::ref_ptr<osg::Shader> fragmentShader = osgDB::readRefShaderFile(osg::Shader::FRAGMENT, "shaders/volume_lit.frag");
                 if (fragmentShader.valid())
                 {
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
@@ -352,7 +352,7 @@ void RayTracedTechnique::init()
                 osg::ref_ptr<osg::Shader> fragmentShader = osgDB::readRefShaderFile(osg::Shader::FRAGMENT, "shaders/volume_tf.frag");
                 if (fragmentShader.valid())
                 {
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
@@ -366,7 +366,7 @@ void RayTracedTechnique::init()
                 osg::ref_ptr<osg::Shader> fragmentShader = osgDB::readRefShaderFile(osg::Shader::FRAGMENT, "shaders/volume.frag");
                 if (fragmentShader.valid())
                 {
-                    program->addShader(fragmentShader);
+                    program->addShader(fragmentShader.get());
                 }
                 else
                 {
diff --git a/src/osgVolume/VolumeScene.cpp b/src/osgVolume/VolumeScene.cpp
index 28438f250..d0b8ab16d 100644
--- a/src/osgVolume/VolumeScene.cpp
+++ b/src/osgVolume/VolumeScene.cpp
@@ -141,7 +141,7 @@ VolumeScene::TileData* VolumeScene::tileVisited(osgUtil::CullVisitor* cv, osgVol
             tileData->stateset->setTextureAttribute(2, tileData->depthTexture.get(), osg::StateAttribute::ON|osg::StateAttribute::OVERRIDE);
 
             tileData->texgenUniform = new osg::Uniform("texgen",osg::Matrixf());
-            tileData->stateset->addUniform(tileData->texgenUniform);
+            tileData->stateset->addUniform(tileData->texgenUniform.get());
         }
 
         tileData->active = true;
@@ -305,7 +305,7 @@ void VolumeScene::traverse(osg::NodeVisitor& nv)
         stateset->setRenderBinDetails(10,"DepthSortedBin");
 
         osg::ref_ptr<osg::Program> program = new osg::Program;
-        stateset->setAttribute(program);
+        stateset->setAttribute(program.get());
 
         // get vertex shaders from source
         osg::ref_ptr<osg::Shader> vertexShader = osgDB::readRefShaderFile(osg::Shader::VERTEX, "shaders/volume_color_depth.vert");