Changeset 87 for trunk/VUT/Ogre/src/OgreVisibilitySceneManager.cpp

Timestamp:

05/09/05 01:24:02 (19 years ago)

Author:

mattausch

Message:

 

File:

• trunk/VUT/Ogre/src/OgreVisibilitySceneManager.cpp (modified) (5 diffs)

trunk/VUT/Ogre/src/OgreVisibilitySceneManager.cpp

@@ -13 +13 @@
 //-----------------------------------------------------------------------
 VisibilitySceneManager::VisibilitySceneManager(GtpVisibility::VisibilityManager *visManager)
-:mVisibilityManager(visManager)
+:mVisibilityManager(visManager), mUseCulling(true)
 {
         mHierarchyInterface = new SceneNodeHierarchyInterface(this, mDestRenderSystem);
@@ -25 +25 @@
 void VisibilitySceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
 {
-        // empty because we have to find objects in _renderVisibleObjects
+        // empty if hierarchical culling is used =>
+        // we interleave identification and rendering of objects 
+        // in _renderVisibibleObjects 
+        if(!mUseCulling)
+        {
+                SceneManager::_findVisibleObjects(cam, onlyShadowCasters);
+        }
 }
 //-----------------------------------------------------------------------
 void VisibilitySceneManager::_renderVisibleObjects()
 {
-                //-- render background
+        mHierarchyInterface->InitFrame(mSceneRoot, mCameraInProgress);
+        mVisibilityManager->GetCullingManager()->InitFrame();
+
+        if(!mUseCulling)
+        {       
+                SceneManager::_renderVisibleObjects();
+                return;
+        } 
+        
+        //-- hierarchical culling
+        // the objects of different layers (e.g., background, scene, 
+        // overlay) must be identified and rendered one after another
+
+        //-- render background
         clearSpecialCaseRenderQueues();
         addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
@@ -36 +55 @@
 
         setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
-        SceneManager::_renderVisibleObjects( );
+        SceneManager::_renderVisibleObjects();
 #ifdef GTP_VISIBILITY_MODIFIED_OGRE
         _deleteRenderedQueueGroups();
 #endif
+
         //-- render visible objects (i.e., all but overlay)
         clearSpecialCaseRenderQueues();
@@ -45 +65 @@
         setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
 
-        mHierarchyInterface->InitFrame(mSceneRoot, mCameraInProgress);
+        //-- the hierarchical culling algorithm
         mVisibilityManager->ApplyVisibilityCulling();
 
@@ -54 +74 @@
         //-- render overlay
         clearSpecialCaseRenderQueues();
-        SceneManager::_renderVisibleObjects( );
-
-        clearSpecialCaseRenderQueues();
+        SceneManager::_renderVisibleObjects();
 }
 //-----------------------------------------------------------------------