Changeset 23 for trunk/VUT/OcclusionCullingSceneManager/src

Timestamp:

03/21/05 17:30:35 (19 years ago)

Author:

gametools

Message:

 

File:

• trunk/VUT/OcclusionCullingSceneManager/src/OgreOcclusionCullingSceneManager.cpp (modified) (13 diffs)

trunk/VUT/OcclusionCullingSceneManager/src/OgreOcclusionCullingSceneManager.cpp

@@ -5 +5 @@
 #include "OgreCamera.h"
 #include "OgreHardwareOcclusionQuery.h"
+#include "OgreWireBoundingBox.h"
 
 #include <windows.h>
@@ -12 +13 @@
         //-----------------------------------------------------------------------
         OcclusionCullingSceneManager::OcclusionCullingSceneManager(): 
-        mFrameID(1), mDistanceQueue(NULL), mVisibilityThreshold(0), mCurrentTestIdx(0),
+        mFrameId(1), mDistanceQueue(NULL), mVisibilityThreshold(0), mCurrentTestIdx(0),
         mQueryMode(MODE_RENDER), mNumSceneNodes(0)
         {               
@@ -25 +26 @@
         {               
                 deleteQueries();
-                SceneManager::~SceneManager();
+                //SceneManager::~SceneManager();
         }
         //-----------------------------------------------------------------------
@@ -33 +34 @@
                 
                 mDistanceQueue->push(mSceneRoot);
+
+                mCurrentTestIdx = 0;
                 //renderZPass();
                 //renderCullFrustum();
-                renderCoherentWithQueue();
+                //renderCoherentWithQueue();
+                renderStopAndWait();
                 delete mDistanceQueue;
 
@@ -46 +50 @@
                 */
                 
-                mFrameID ++;
+                mFrameId ++;
         }
         //-----------------------------------------------------------------------
@@ -88 +92 @@
                                 {
                                         // identify previously visible nodes
-                                        bool wasVisible = node->isNodeVisible() && (node->lastVisited() == mFrameID - 1);
+                                        bool wasVisible = node->isNodeVisible() && (node->lastVisited() == mFrameId - 1);
                                         
                                         // identify nodes that we cannot skip queries for
@@ -97 +101 @@
 
                                         // update node's visited flag
-                                        node->setLastVisited(mFrameID);
+                                        node->setLastVisited(mFrameId);
                                 
                                         // skip testing previously visible interior nodes
@@ -144 +148 @@
                         // interesting for the visualization
                         //node->SetVisible(false);
-                        node->setLastVisited(15);
+                        node->setLastVisited(mFrameId);
 
                         if(mCameraInProgress->isVisible(node->_getWorldAABB()))
@@ -152 +156 @@
                                 unsigned int visiblePixels;
                                 // wait if result not available
-                                mOcclusionQueries[mCurrentTestIdx++]->pullOcclusionQuery(&visiblePixels);
+                                node->getOcclusionQuery()->pullOcclusionQuery(&visiblePixels);
                                 
+                                //char str[100]; sprintf(str, "number: %d, id: %d", (int)visiblePixels, mCurrentTestIdx);
+                                //MessageBox( NULL, str, "this is my plugin", MB_OK | MB_ICONERROR | MB_TASKMODAL);
+
                                 // node visible
                                 if(visiblePixels > mVisibilityThreshold)
@@ -165 +172 @@
         void OcclusionCullingSceneManager::issueOcclusionQuery(SceneNode *node, bool wasVisible)
         {
+                // change state so the bounding box gets not actually rendered on the screen
+                setRenderingMode(MODE_RENDER);
+
                 // get next available test id
-                mOcclusionQueries[mCurrentTestIdx]->beginOcclusionQuery();
-        
-                // change state so the bounding box gets not actually rendered on the screen
-                setRenderingMode(MODE_QUERY);
+                HardwareOcclusionQuery *query = mOcclusionQueries[mCurrentTestIdx++];
+                node->setOcclusionQuery(query);
+
+                query->beginOcclusionQuery();
+                
+                WireBoundingBox box;
+                box.setupBoundingBox(node->_getWorldAABB());
+
                 //HACK: too slow
-        node->_addBoundingBoxToQueue(getRenderQueue());
-                SceneManager::_renderVisibleObjects();
-                getRenderQueue()->clear();
-                /* static RenderOperation ro;
-                   node->getRenderOperation(ro);
-                   ro.srcRenderable = node; 
-                   mDestRenderSystem->_render(ro); */
-                
-                mOcclusionQueries[mCurrentTestIdx++]->endOcclusionQuery();
+                
+                /*
+                static RenderOperation ro;
+
+                
+                static Matrix4 xform[256];
+                unsigned short numMatrices;
+
+        //node->_addBoundingBoxToQueue(getRenderQueue());
+                //SceneManager::_renderVisibleObjects();
+                //getRenderQueue()->clear();
+
+                // Set world transformation
+                /*box.getWorldTransforms(xform);
+                numMatrices = box.getNumWorldTransforms();
+                if (numMatrices > 1)
+                {
+                        mDestRenderSystem->_setWorldMatrices(xform, numMatrices);
+                }
+                else
+                {
+                mDestRenderSystem->_setWorldMatrix(*xform);
+            }
+*/
+                // Issue view / projection changes if any
+                /*useRenderableViewProjMode(&box);
+
+                box.getRenderOperation(ro);
+                ro.srcRenderable = &box; 
+                mDestRenderSystem->_render(ro);*/
+                setPass(box.getTechnique()->getPass(0)); setRenderingMode(MODE_QUERY);
+                SceneManager::renderSingleObject(&box, box.getTechnique()->getPass(0), false);
+
+                query->endOcclusionQuery();
         }
 
@@ -189 +228 @@
                 {
                         bool enabled = (mode == MODE_RENDER);
-
+                        
+                //      char str[100]; sprintf(str, "number: %d", mode);
+                //      MessageBox( NULL, str, "this is my plugin", MB_OK | MB_ICONERROR | MB_TASKMODAL);
                         mDestRenderSystem->_setColourBufferWriteEnabled(enabled, 
                                 enabled, enabled, enabled);
@@ -231 +272 @@
         {
                 int numnodes = countSceneNodes(mSceneRoot);
-                //char str[100]; sprintf(str, "number: %d", mNumSceneNodes);
-                //MessageBox( NULL, str, "this is my plugin", MB_OK | MB_ICONERROR | MB_TASKMODAL);
                 
                 //-- initialise occlusion queries.
                 if(numnodes != mNumSceneNodes)
                 {
+                        deleteQueries();
                         mNumSceneNodes = numnodes;
 
-                        deleteQueries();
-
-                        for(int i=0; i < mNumSceneNodes; i++)
+                        for(unsigned int i=0; i < mNumSceneNodes; i++)
                         {
                                 HardwareOcclusionQuery *hw = mDestRenderSystem->createHardwareOcclusionQuery();
                                 mOcclusionQueries.push_back(hw);
                         }
+                        //char str[100]; sprintf(str, "number: %d", mNumSceneNodes);
+                        //MessageBox( NULL, str, "this is my plugin", MB_OK | MB_ICONERROR | MB_TASKMODAL);
                 }
 
@@ -286 +326 @@
         void OcclusionCullingSceneManager::deleteQueries()
         {
-                for(int i=0; i < mNumSceneNodes; i++)
+                for(unsigned int i=0; i < mNumSceneNodes; i++)
                         delete mOcclusionQueries[i];