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

Timestamp:

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

Author:

mattausch

Message:

 

File:

• trunk/VUT/Ogre/src/OgreVisibilityTerrainSceneManager.cpp (modified) (6 diffs)

trunk/VUT/Ogre/src/OgreVisibilityTerrainSceneManager.cpp

@@ -7 +7 @@
 #include <OgreCamera.h>
 
-//#include <windows.h>
+#include <windows.h>
 
 namespace Ogre {
-//namespace GtpVisibility {
+
 //-----------------------------------------------------------------------
 VisibilityTerrainSceneManager::VisibilityTerrainSceneManager(
-        GtpVisibility::VisibilityManager *visManager): mVisibilityManager(visManager)
+        GtpVisibility::VisibilityManager *visManager)
+: mVisibilityManager(visManager), mUseCulling(true)
 {
         mHierarchyInterface = 
                 new OctreeHierarchyInterface(this, mDestRenderSystem);
 
-        //mShowBoxes = true;
         //mDisplayNodes = true;
         //mShowBoundingBoxes = true;
@@ -31 +31 @@
 void VisibilityTerrainSceneManager::_renderVisibleObjects()
 {
+        mHierarchyInterface->InitFrame(mOctree, mCameraInProgress);
+        mVisibilityManager->GetCullingManager()->InitFrame();
+
+        if(!mUseCulling)
+        {       
+                OctreeSceneManager::_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();
@@ -47 +60 @@
         setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
 
-        mHierarchyInterface->InitFrame(mOctree, mCameraInProgress);
+        //-- the hierarchical culling algorithm
         mVisibilityManager->ApplyVisibilityCulling();
 
@@ -56 +69 @@
         //-- render overlay
         clearSpecialCaseRenderQueues();
-        SceneManager::_renderVisibleObjects( );
+        SceneManager::_renderVisibleObjects();
 }
 //-----------------------------------------------------------------------
 void VisibilityTerrainSceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
 {
-        // must be empty because objects are found and rendered in an interleaved fashion
+        // empty if hierarchical culling is used =>
+        // we interleave identification and rendering of objects 
         // in _renderVisibibleObjects 
+        if(!mUseCulling)
+        {
+                OctreeSceneManager::_findVisibleObjects(cam, onlyShadowCasters);
+        }
 }
 //-----------------------------------------------------------------------
@@ -79 +97 @@
 bool VisibilityTerrainSceneManager::setOption(const String & key, const void * val)
 {
+        if (key == "UseCulling")
+        {
+                mUseCulling = (*static_cast<const bool *>(val));
+                return true;
+        }
+
         return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
                 setOption(key, val) || TerrainSceneManager::setOption(key, val);
@@ -115 +139 @@
         return mVisibilityManager;
 }
-//} // namespace GtpVisibility
 } // namespace Ogre