source: trunk/VUT/OcclusionCullingSceneManager/src/OgreOcclusionCullingSceneManager.cpp @ 42

#include "OgreOcclusionCullingSceneManager.h"
#include "OgreMath.h"
#include "OgreIteratorWrappers.h"
#include "OgreRenderSystem.h"
#include "OgreCamera.h"
#include "OgreHardwareOcclusionQuery.h"
//#include "OgreWireBoundingBox.h"
#include "OgreSolidHalfBoundingBox.h"

#include <windows.h>

namespace Ogre {
        
        //-----------------------------------------------------------------------
        OcclusionCullingSceneManager::OcclusionCullingSceneManager()
        {
                mOcclusionCullingSceneTraverser = new OcclusionCullingSceneTraverser(this, mDestRenderSystem);
        }
        //-----------------------------------------------------------------------
        OcclusionCullingSceneManager::~OcclusionCullingSceneManager()
        {
                delete mOcclusionCullingSceneTraverser;
        }
        //-----------------------------------------------------------------------
        void OcclusionCullingSceneManager::_findVisibleObjects( Camera* cam, bool onlyShadowCasters )
        {
                // empty because we have to find objects in _renderVisibleObjects
        }
        //-----------------------------------------------------------------------
        void OcclusionCullingSceneManager::_renderVisibleObjects( void )
        {
                        //-- render background
                clearSpecialCaseRenderQueues();
                addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
                addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
        
                setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
                SceneManager::_renderVisibleObjects( );
                _deleteRenderedQueueGroups();

                //-- render visible objects (i.e., all but overlay)
                clearSpecialCaseRenderQueues();
                addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
                setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);

                mOcclusionCullingSceneTraverser->setSceneRoot(mSceneRoot);
                mOcclusionCullingSceneTraverser->renderScene(mCameraInProgress);

                _deleteRenderedQueueGroups();

                //-- render overlay
                clearSpecialCaseRenderQueues();
                SceneManager::_renderVisibleObjects( );
        
                clearSpecialCaseRenderQueues();
        }
        //-----------------------------------------------------------------------
        /*void OcclusionCullingSceneManager::renderZPass()
        {
                traverseNode(mSceneRoot);
        }*/
        //-----------------------------------------------------------------------
        void OcclusionCullingSceneManager::_updateSceneGraph( Camera* cam )
        {
                mOcclusionCullingSceneTraverser->setNumSceneNodes((int)mSceneNodes.size());
                mOcclusionCullingSceneTraverser->setRenderSystem(mDestRenderSystem);
                
                //mOcclusionCullingSceneTraverser->setNumQueries((int)mSceneNodes.size());
        //mOcclusionCullingSceneTraverser->preprocess();
                
                SceneManager::_updateSceneGraph(cam);
        }
        //-----------------------------------------------------------------------
        bool OcclusionCullingSceneManager::setOption( const String & key, const void * val )
        {
                mOcclusionCullingSceneTraverser->setOption(key, val);
                        
                return SceneManager::setOption( key, val );
        }
        //-----------------------------------------------------------------------
        bool OcclusionCullingSceneManager::getOption( const String & key, void *val )
        {
                mOcclusionCullingSceneTraverser->getOption(key, val);
                
                return SceneManager::getOption( key, val );
        }
        //-----------------------------------------------------------------------
        bool OcclusionCullingSceneManager::getOptionValues( const String & key, StringVector  &refValueList )
        {
                return SceneManager::getOptionValues( key, refValueList );
        }
        //-----------------------------------------------------------------------
        bool OcclusionCullingSceneManager::getOptionKeys( StringVector & refKeys )
        {
                SceneManager::getOptionKeys( refKeys );

                mOcclusionCullingSceneTraverser->getOptionKeys( refKeys );

                return true;
        }
}