OpenCS: port lighting toolbar, fix multiple context GL objects issue

apps/opencs/view/render/lighting.hpp

@@ -1,10 +1,13 @@
 #ifndef OPENCS_VIEW_LIGHTING_H
 #define OPENCS_VIEW_LIGHTING_H
 
-namespace Ogre
+namespace osgViewer
 {
-    class SceneManager;
-    class ColourValue;
+    class View;
+}
+namespace osg
+{
+    class Vec4f;
 }
 
 namespace CSVRender
@@ -15,12 +18,12 @@ namespace CSVRender
 
             virtual ~Lighting();
 
-            virtual void activate (Ogre::SceneManager *sceneManager,
-                const Ogre::ColourValue *defaultAmbient = 0) = 0;
+            virtual void activate (osgViewer::View* view,
+                const osg::Vec4f *defaultAmbient = 0) = 0;
 
             virtual void deactivate() = 0;
 
-            virtual void setDefaultAmbient (const Ogre::ColourValue& colour) = 0;
+            virtual void setDefaultAmbient (const osg::Vec4f& colour) = 0;
     };
 }
 

apps/opencs/view/render/lightingbright.cpp

@@ -3,28 +3,28 @@
 
 #include <OgreSceneManager.h>
 
-CSVRender::LightingBright::LightingBright() : mSceneManager (0), mLight (0) {}
+#include <osgViewer/View>
 
-void CSVRender::LightingBright::activate (Ogre::SceneManager *sceneManager,
-    const Ogre::ColourValue *defaultAmbient)
+CSVRender::LightingBright::LightingBright() : mView(NULL) {}
+
+void CSVRender::LightingBright::activate (osgViewer::View* view,
+ const osg::Vec4f* /*defaultAmbient*/)
 {
-    mSceneManager = sceneManager;
+    mView = view;
+
+    // FIXME: ambient should be applied to LightModel instead of the light
 
-    mSceneManager->setAmbientLight (Ogre::ColourValue (1.0, 1.0, 1.0, 1));
+    osg::ref_ptr<osg::Light> light (new osg::Light);
+    light->setConstantAttenuation(1.f);
+    light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
+    light->setDiffuse(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
+    light->setAmbient(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
 
-    mLight = mSceneManager->createLight();
-    mLight->setType (Ogre::Light::LT_DIRECTIONAL);
-    mLight->setDirection (Ogre::Vector3 (0, 0, -1));
-    mLight->setDiffuseColour (Ogre::ColourValue (1.0, 1.0, 1.0));
+    mView->setLight(light);
 }
 
 void CSVRender::LightingBright::deactivate()
 {
-    if (mLight)
-    {
-        mSceneManager->destroyLight (mLight);
-        mLight = 0;
-    }
 }
 
-void CSVRender::LightingBright::setDefaultAmbient (const Ogre::ColourValue& colour) {}
+void CSVRender::LightingBright::setDefaultAmbient (const osg::Vec4f& colour) {}

apps/opencs/view/render/lightingbright.hpp

@@ -12,19 +12,18 @@ namespace CSVRender
 {
     class LightingBright : public Lighting
     {
-            Ogre::SceneManager *mSceneManager;
-            Ogre::Light *mLight;
+            osgViewer::View* mView;
 
         public:
 
             LightingBright();
 
-            virtual void activate (Ogre::SceneManager *sceneManager,
-                const Ogre::ColourValue *defaultAmbient = 0);
+            virtual void activate (osgViewer::View* view,
+                const osg::Vec4f *defaultAmbient = 0);
 
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const Ogre::ColourValue& colour);
+            virtual void setDefaultAmbient (const osg::Vec4f& colour);
     };
 }
 

apps/opencs/view/render/lightingday.cpp

@@ -1,36 +1,33 @@
-
 #include "lightingday.hpp"
 
-#include <OgreSceneManager.h>
+#include <osgViewer/View>
 
-CSVRender::LightingDay::LightingDay() : mSceneManager (0), mLight (0) {}
+CSVRender::LightingDay::LightingDay() : mView(NULL) {}
 
-void CSVRender::LightingDay::activate (Ogre::SceneManager *sceneManager,
-    const Ogre::ColourValue *defaultAmbient)
+void CSVRender::LightingDay::activate (osgViewer::View* view,
+                                       const osg::Vec4f *defaultAmbient)
 {
-    mSceneManager = sceneManager;
+    mView = view;
+
+    osg::ref_ptr<osg::Light> light (new osg::Light);
+    light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
+    light->setDiffuse(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
+    light->setConstantAttenuation(1.f);
 
     if (defaultAmbient)
-        mSceneManager->setAmbientLight (*defaultAmbient);
+        light->setAmbient(*defaultAmbient);
     else
-        mSceneManager->setAmbientLight (Ogre::ColourValue (0.7, 0.7, 0.7, 1));
+        light->setAmbient(osg::Vec4f(0.7f, 0.7f, 0.7f, 1.f));
 
-    mLight = mSceneManager->createLight();
-    mLight->setType (Ogre::Light::LT_DIRECTIONAL);
-    mLight->setDirection (Ogre::Vector3 (0, 0, -1));
-    mLight->setDiffuseColour (Ogre::ColourValue (1, 1, 1));
+    mView->setLight(light);
 }
 
 void CSVRender::LightingDay::deactivate()
 {
-    if (mLight)
-    {
-        mSceneManager->destroyLight (mLight);
-        mLight = 0;
-    }
 }
 
-void CSVRender::LightingDay::setDefaultAmbient (const Ogre::ColourValue& colour)
+void CSVRender::LightingDay::setDefaultAmbient (const osg::Vec4f& colour)
 {
-    mSceneManager->setAmbientLight (colour);
+    if (mView)
+        mView->getLight()->setAmbient(colour);
 }

apps/opencs/view/render/lightingday.hpp

@@ -12,19 +12,18 @@ namespace CSVRender
 {
     class LightingDay : public Lighting
     {
-            Ogre::SceneManager *mSceneManager;
-            Ogre::Light *mLight;
+            osgViewer::View* mView;
 
         public:
 
             LightingDay();
 
-            virtual void activate (Ogre::SceneManager *sceneManager,
-                const Ogre::ColourValue *defaultAmbient = 0);
+            virtual void activate (osgViewer::View* view,
+                const osg::Vec4f *defaultAmbient = 0);
 
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const Ogre::ColourValue& colour);
+            virtual void setDefaultAmbient (const osg::Vec4f& colour);
     };
 }
 

apps/opencs/view/render/lightingnight.cpp

@@ -1,36 +1,33 @@
-
 #include "lightingnight.hpp"
 
-#include <OgreSceneManager.h>
+#include <osgViewer/View>
 
-CSVRender::LightingNight::LightingNight() : mSceneManager (0), mLight (0) {}
+CSVRender::LightingNight::LightingNight() : mView(NULL) {}
 
-void CSVRender::LightingNight::activate (Ogre::SceneManager *sceneManager,
-    const Ogre::ColourValue *defaultAmbient)
+void CSVRender::LightingNight::activate (osgViewer::View* view,
+                                         const osg::Vec4f *defaultAmbient)
 {
-    mSceneManager = sceneManager;
+    mView = view;
+
+    osg::ref_ptr<osg::Light> light (new osg::Light);
+    light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
+    light->setDiffuse(osg::Vec4f(0.2f, 0.2f, 0.2f, 1.f));
+    light->setConstantAttenuation(1.f);
 
     if (defaultAmbient)
-        mSceneManager->setAmbientLight (*defaultAmbient);
+        light->setAmbient(*defaultAmbient);
     else
-        mSceneManager->setAmbientLight (Ogre::ColourValue (0.2, 0.2, 0.2, 1));
+        light->setAmbient(osg::Vec4f(0.2f, 0.2f, 0.2f, 1.f));
 
-    mLight = mSceneManager->createLight();
-    mLight->setType (Ogre::Light::LT_DIRECTIONAL);
-    mLight->setDirection (Ogre::Vector3 (0, 0, -1));
-    mLight->setDiffuseColour (Ogre::ColourValue (0.2, 0.2, 0.2));
+    mView->setLight(light);
 }
 
 void CSVRender::LightingNight::deactivate()
 {
-    if (mLight)
-    {
-        mSceneManager->destroyLight (mLight);
-        mLight = 0;
-    }
 }
 
-void CSVRender::LightingNight::setDefaultAmbient (const Ogre::ColourValue& colour)
+void CSVRender::LightingNight::setDefaultAmbient (const osg::Vec4f& colour)
 {
-    mSceneManager->setAmbientLight (colour);
+    if (mView)
+        mView->getLight()->setAmbient(colour);
 }

apps/opencs/view/render/lightingnight.hpp

@@ -12,19 +12,18 @@ namespace CSVRender
 {
     class LightingNight : public Lighting
     {
-            Ogre::SceneManager *mSceneManager;
-            Ogre::Light *mLight;
+            osgViewer::View* mView;
 
         public:
 
             LightingNight();
 
-            virtual void activate (Ogre::SceneManager *sceneManager,
-                const Ogre::ColourValue *defaultAmbient = 0);
+            virtual void activate (osgViewer::View* view,
+                const osg::Vec4f *defaultAmbient = 0);
 
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const Ogre::ColourValue& colour);
+            virtual void setDefaultAmbient (const osg::Vec4f& colour);
     };
 }
 

apps/opencs/view/render/previewwidget.cpp

@@ -8,7 +8,7 @@
 
 CSVRender::PreviewWidget::PreviewWidget (CSMWorld::Data& data,
     const std::string& id, bool referenceable, QWidget *parent)
-: SceneWidget (parent), mData (data), mObject(data, mRootNode, id, referenceable)
+: SceneWidget (data.getResourceSystem()->getSceneManager(), parent), mData (data), mObject(data, mRootNode, id, referenceable)
 {
     mView->setCameraManipulator(new osgGA::TrackballManipulator);
 

apps/opencs/view/render/scenewidget.cpp

@@ -6,21 +6,23 @@
 #include <QShortcut>
 #include <QLayout>
 
+#include <osgQt/GraphicsWindowQt>
+#include <osg/GraphicsContext>
+#include <osgViewer/CompositeViewer>
+#include <osgViewer/ViewerEventHandlers>
+
+#include <components/resource/scenemanager.hpp>
+
 #include "../widget/scenetoolmode.hpp"
 #include "../../model/settings/usersettings.hpp"
 
 #include "navigation.hpp"
 #include "lighting.hpp"
 
-#include <osgQt/GraphicsWindowQt>
-#include <osg/GraphicsContext>
-#include <osgViewer/CompositeViewer>
-#include <osgViewer/ViewerEventHandlers>
-
 namespace CSVRender
 {
 
-SceneWidget::SceneWidget(QWidget *parent, Qt::WindowFlags f)
+RenderWidget::RenderWidget(QWidget *parent, Qt::WindowFlags f)
     : QWidget(parent, f)
     , mRootNode(0)
 {
@@ -58,9 +60,8 @@ SceneWidget::SceneWidget(QWidget *parent, Qt::WindowFlags f)
     mView->getCamera()->setProjectionMatrixAsPerspective(30.0f, static_cast<double>(traits->width)/static_cast<double>(traits->height), 1.0f, 10000.0f );
 
     mRootNode = new osg::Group;
-    // TODO: move to utility file
-    mRootNode->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
-    mRootNode->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
+
+    addDefaultRootState(mRootNode->getOrCreateStateSet());
 
     mView->setSceneData(mRootNode);
 
@@ -74,22 +75,30 @@ SceneWidget::SceneWidget(QWidget *parent, Qt::WindowFlags f)
     viewer.realize();
 }
 
-SceneWidget::~SceneWidget()
+void RenderWidget::addDefaultRootState(osg::StateSet* stateset)
+{
+    stateset->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
+    stateset->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
+}
+
+RenderWidget::~RenderWidget()
 {
     CompositeViewer::get().removeView(mView);
 }
 
-void SceneWidget::flagAsModified()
+void RenderWidget::flagAsModified()
 {
     mView->requestRedraw();
 }
 
-void SceneWidget::setVisibilityMask(int mask)
+void RenderWidget::setVisibilityMask(int mask)
 {
     // 0x1 reserved for separating cull and update visitors
     mView->getCamera()->setCullMask(mask<<1);
 }
 
+// --------------------------------------------------
+
 CompositeViewer::CompositeViewer()
 {
 #if QT_VERSION >= 0x050000
@@ -109,7 +118,7 @@ CompositeViewer::CompositeViewer()
     setRunFrameScheme(osgViewer::ViewerBase::CONTINUOUS);
 
     connect( &mTimer, SIGNAL(timeout()), this, SLOT(update()) );
-    mTimer.start( 0 );
+    mTimer.start( 10 );
 }
 
 CompositeViewer &CompositeViewer::get()
@@ -123,4 +132,80 @@ void CompositeViewer::update()
     frame();
 }
 
+// ---------------------------------------------------
+
+SceneWidget::SceneWidget(Resource::SceneManager* sceneManager, QWidget *parent, Qt::WindowFlags f)
+    : RenderWidget(parent, f)
+    , mSceneManager(sceneManager)
+    , mLighting(NULL)
+{
+    //mView->setLightingMode(osgViewer::View::NO_LIGHT);
+
+    setLighting(&mLightingDay);
+}
+
+SceneWidget::~SceneWidget()
+{
+    // Since we're holding on to the scene templates past the existance of this graphics context, we'll need to manually release the created objects
+    mSceneManager->releaseGLObjects(mView->getCamera()->getGraphicsContext()->getState());
+}
+
+void SceneWidget::setLighting(Lighting *lighting)
+{
+    if (mLighting)
+        mLighting->deactivate();
+
+    mLighting = lighting;
+    mLighting->activate (mView.get(), mHasDefaultAmbient ? &mDefaultAmbient : 0);
+
+    flagAsModified();
+}
+
+void SceneWidget::selectLightingMode (const std::string& mode)
+{
+    if (mode=="day")
+        setLighting (&mLightingDay);
+    else if (mode=="night")
+        setLighting (&mLightingNight);
+    else if (mode=="bright")
+        setLighting (&mLightingBright);
+}
+
+CSVWidget::SceneToolMode *SceneWidget::makeLightingSelector (CSVWidget::SceneToolbar *parent)
+{
+    CSVWidget::SceneToolMode *tool = new CSVWidget::SceneToolMode (parent, "Lighting Mode");
+
+    /// \todo replace icons
+    tool->addButton (":scenetoolbar/day", "day",
+        "Day"
+        "<ul><li>Cell specific ambient in interiors</li>"
+        "<li>Low ambient in exteriors</li>"
+        "<li>Strong directional light source</li>"
+        "<li>This mode closely resembles day time in-game</li></ul>");
+    tool->addButton (":scenetoolbar/night", "night",
+        "Night"
+        "<ul><li>Cell specific ambient in interiors</li>"
+        "<li>Low ambient in exteriors</li>"
+        "<li>Weak directional light source</li>"
+        "<li>This mode closely resembles night time in-game</li></ul>");
+    tool->addButton (":scenetoolbar/bright", "bright",
+        "Bright"
+        "<ul><li>Maximum ambient</li>"
+        "<li>Strong directional light source</li></ul>");
+
+    connect (tool, SIGNAL (modeChanged (const std::string&)),
+        this, SLOT (selectLightingMode (const std::string&)));
+
+    return tool;
+}
+
+void SceneWidget::setDefaultAmbient (const osg::Vec4f& colour)
+{
+    mDefaultAmbient = colour;
+    mHasDefaultAmbient = true;
+
+    if (mLighting)
+        mLighting->setDefaultAmbient (colour);
+}
+
 }

apps/opencs/view/render/scenewidget.hpp

@@ -11,6 +11,11 @@
 #include <osgViewer/View>
 #include <osgViewer/CompositeViewer>
 
+namespace Resource
+{
+    class SceneManager;
+}
+
 namespace osg
 {
     class Group;
@@ -27,13 +32,13 @@ namespace CSVRender
     class Navigation;
     class Lighting;
 
-    class SceneWidget : public QWidget
+    class RenderWidget : public QWidget
     {
         Q_OBJECT
 
     public:
-        SceneWidget(QWidget* parent = 0, Qt::WindowFlags f = 0);
-        ~SceneWidget();
+        RenderWidget(QWidget* parent = 0, Qt::WindowFlags f = 0);
+        virtual ~RenderWidget();
 
         void flagAsModified();
 
@@ -41,6 +46,8 @@ namespace CSVRender
 
     protected:
 
+        void addDefaultRootState(osg::StateSet* stateset);
+
         osg::ref_ptr<osgViewer::View> mView;
 
         osg::Group* mRootNode;
@@ -48,6 +55,39 @@ namespace CSVRender
         QTimer mTimer;
     };
 
+    // Extension of RenderWidget to support lighting mode selection & toolbar
+    class SceneWidget : public RenderWidget
+    {
+        Q_OBJECT
+    public:
+        SceneWidget(Resource::SceneManager* sceneManager, QWidget* parent = 0, Qt::WindowFlags f = 0);
+        virtual ~SceneWidget();
+
+        CSVWidget::SceneToolMode *makeLightingSelector (CSVWidget::SceneToolbar *parent);
+        ///< \attention The created tool is not added to the toolbar (via addTool). Doing that
+        /// is the responsibility of the calling function.
+
+        void setDefaultAmbient (const osg::Vec4f& colour);
+        ///< \note The actual ambient colour may differ based on lighting settings.
+
+    protected:
+        void setLighting (Lighting *lighting);
+        ///< \attention The ownership of \a lighting is not transferred to *this.
+
+        Resource::SceneManager* mSceneManager;
+
+        Lighting* mLighting;
+
+        osg::Vec4f mDefaultAmbient;
+        bool mHasDefaultAmbient;
+        LightingDay mLightingDay;
+        LightingNight mLightingNight;
+        LightingBright mLightingBright;
+
+    private slots:
+
+        void selectLightingMode (const std::string& mode);
+    };
 
 
     // There are rendering glitches when using multiple Viewer instances, work around using CompositeViewer with multiple views

apps/opencs/view/render/unpagedworldspacewidget.cpp

@@ -23,9 +23,12 @@ void CSVRender::UnpagedWorldspaceWidget::update()
     const CSMWorld::Record<CSMWorld::Cell>& record =
         dynamic_cast<const CSMWorld::Record<CSMWorld::Cell>&> (mCellsModel->getRecord (mCellId));
 
-    Ogre::ColourValue colour;
-    colour.setAsABGR (record.get().mAmbi.mAmbient);
-    //setDefaultAmbient (colour);
+    ESM::Color clr = record.get().mAmbi.mAmbient;
+    osg::Vec4f colour(((clr >> 0) & 0xFF) / 255.0f,
+                      ((clr >> 8) & 0xFF) / 255.0f,
+                      ((clr >> 16) & 0xFF) / 255.0f, 1.f);
+
+    setDefaultAmbient (colour);
 
     /// \todo deal with mSunlight and mFog/mForDensity
 
@@ -51,7 +54,6 @@ CSVRender::UnpagedWorldspaceWidget::UnpagedWorldspaceWidget (const std::string&
     mCell.reset (new Cell (document.getData(), mRootNode, mCellId));
 
     mView->setCameraManipulator(new osgGA::TrackballManipulator);
-    //mView->setCameraManipulator(new osgGA::FirstPersonManipulator);
 }
 
 void CSVRender::UnpagedWorldspaceWidget::cellDataChanged (const QModelIndex& topLeft,
@@ -93,7 +95,7 @@ bool CSVRender::UnpagedWorldspaceWidget::handleDrop (const std::vector<CSMWorld:
         return false;
 
     mCellId = data.begin()->getId();
-    // FIXME: we shouldn't need to rebuild the whole cell
+
     mCell.reset (new Cell (getDocument().getData(), mRootNode, mCellId));
 
     update();

apps/opencs/view/render/worldspacewidget.cpp

@@ -19,7 +19,7 @@
 #include "editmode.hpp"
 
 CSVRender::WorldspaceWidget::WorldspaceWidget (CSMDoc::Document& document, QWidget* parent)
-: SceneWidget (parent), mDocument(document), mSceneElements(0), mRun(0),
+: SceneWidget (document.getData().getResourceSystem()->getSceneManager(), parent), mDocument(document), mSceneElements(0), mRun(0),
   mInteractionMask (0)
 {
     setAcceptDrops(true);
@@ -361,7 +361,7 @@ void CSVRender::WorldspaceWidget::mouseMoveEvent (QMouseEvent *event)
     {
         //mMouse->mouseMoveEvent(event);
     }
-    SceneWidget::mouseMoveEvent(event);
+    RenderWidget::mouseMoveEvent(event);
 }
 
 void CSVRender::WorldspaceWidget::mousePressEvent (QMouseEvent *event)
@@ -386,7 +386,7 @@ void CSVRender::WorldspaceWidget::mouseReleaseEvent (QMouseEvent *event)
         */
         //mMouse->mouseReleaseEvent(event);
     }
-    SceneWidget::mouseReleaseEvent(event);
+    RenderWidget::mouseReleaseEvent(event);
 }
 
 void CSVRender::WorldspaceWidget::mouseDoubleClickEvent (QMouseEvent *event)
@@ -401,7 +401,7 @@ void CSVRender::WorldspaceWidget::mouseDoubleClickEvent (QMouseEvent *event)
 void CSVRender::WorldspaceWidget::wheelEvent (QWheelEvent *event)
 {
     //if(!mMouse->wheelEvent(event))
-        SceneWidget::wheelEvent(event);
+        RenderWidget::wheelEvent(event);
 }
 
 void CSVRender::WorldspaceWidget::keyPressEvent (QKeyEvent *event)
@@ -411,5 +411,5 @@ void CSVRender::WorldspaceWidget::keyPressEvent (QKeyEvent *event)
         //mMouse->cancelDrag();
     }
     else
-        SceneWidget::keyPressEvent(event);
+        RenderWidget::keyPressEvent(event);
 }

apps/opencs/view/world/previewsubview.cpp

@@ -30,8 +30,8 @@ CSVWorld::PreviewSubView::PreviewSubView (const CSMWorld::UniversalId& id, CSMDo
 
     CSVWidget::SceneToolbar *toolbar = new CSVWidget::SceneToolbar (48+6, this);
 
-    //CSVWidget::SceneToolMode *lightingTool = mScene->makeLightingSelector (toolbar);
-    //toolbar->addTool (lightingTool);
+    CSVWidget::SceneToolMode *lightingTool = mScene->makeLightingSelector (toolbar);
+    toolbar->addTool (lightingTool);
 
     layout->addWidget (toolbar, 0);
 

apps/opencs/view/world/scenesubview.cpp

@@ -107,8 +107,8 @@ CSVWidget::SceneToolbar* CSVWorld::SceneSubView::makeToolbar (CSVRender::Worldsp
     CSVWidget::SceneToolMode *navigationTool = widget->makeNavigationSelector (toolbar);
     toolbar->addTool (navigationTool);
 
-    //CSVWidget::SceneToolMode *lightingTool = widget->makeLightingSelector (toolbar);
-    //toolbar->addTool (lightingTool);
+    CSVWidget::SceneToolMode *lightingTool = widget->makeLightingSelector (toolbar);
+    toolbar->addTool (lightingTool);
 
     CSVWidget::SceneToolToggle2 *sceneVisibilityTool =
         widget->makeSceneVisibilitySelector (toolbar);

components/esm/defs.hpp

@@ -13,7 +13,7 @@ struct TimeStamp
 };
 
 // Pixel color value. Standard four-byte rr,gg,bb,aa format.
-typedef int32_t Color;
+typedef uint32_t Color;
 
 enum Specialization
 {

components/resource/scenemanager.cpp

@@ -115,4 +115,12 @@ namespace Resource
         instance->accept(visitor);
     }
 
+    void SceneManager::releaseGLObjects(osg::State *state)
+    {
+        for (Index::iterator it = mIndex.begin(); it != mIndex.end(); ++it)
+        {
+            it->second->releaseGLObjects(state);
+        }
+    }
+
 }

components/resource/scenemanager.hpp

@@ -41,6 +41,8 @@ namespace Resource
         /// @note Assumes the given instance was not attached to any parents before.
         void attachTo(osg::Node* instance, osg::Group* parentNode) const;
 
+        void releaseGLObjects(osg::State* state);
+
     private:
         const VFS::Manager* mVFS;
         Resource::TextureManager* mTextureManager;