source: trunk/VUT/work/TestCulling/TestCullingApplication.cpp @ 130

Revision 130, 13.1 KB checked in by mattausch, 19 years ago (diff)

added visibility queries
Line 
1/**
2    \file
3        TestCullingApplication.cpp
4    \brief
5        Tests the visibility culling algorithm
6*/
7
8#include <OgreNoMemoryMacros.h>
9#include <CEGUI/CEGUI.h>
10#include <../CEGUIRenderer/include/OgreCEGUIRenderer.h>
11#include <../CEGUIRenderer/include/OgreCEGUIResourceProvider.h>
12#include <../CEGUIRenderer/include/OgreCEGUITexture.h>
13#include <OgreMemoryMacros.h>
14#include <Ogre.h>
15#include "TestCullingApplication.h"
16#include "OgreSceneContentGenerator.h"
17
18#define WIN32_LEAN_AND_MEAN
19#include <windows.h>
20
21
22/***********************************************/
23/* TestCullingApplication implementation       */
24/***********************************************/
25
26//-----------------------------------------------------------------------
27/*void TestCullingApplication::createCamera( void )
28{
29        // Create the camera
30        mCamera = mSceneMgr->createCamera("CullCamera");
31
32        // Position it at 500 in Z direction
33        mCamera->setPosition(Vector3(128,25,128));
34
35        // Look back along -Z
36    mCamera->lookAt(Vector3(0,0,-300));
37    mCamera->setNearClipDistance( 1 );
38    mCamera->setFarClipDistance( 1000 );
39}*/
40//-----------------------------------------------------------------------
41TestCullingApplication::~TestCullingApplication()
42{
43        delete mSceneContentGenerator;
44}
45//-----------------------------------------------------------------------
46void TestCullingApplication::createScene(void)
47{
48        // Set ambient light
49        mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
50       
51        // Create a light
52        Light* l = mSceneMgr->createLight("MainLight");
53        //l->setPosition(20,80,50);
54
55        mSceneContentGenerator = new SceneContentGenerator(mSceneMgr);
56        mSceneContentGenerator->GenerateScene(3000, "sphere.mesh");
57
58        // Create a skybox
59    mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox", 2000, true);
60    ColourValue fadeColour(0.1, 0.1, 0.6);
61        mWindow->getViewport(0)->setBackgroundColour(fadeColour);
62
63        // CEGUI setup
64        setupGui();
65}
66//-----------------------------------------------------------------------
67void TestCullingApplication::setupGui()
68{
69         mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, ST_EXTERIOR_CLOSE);
70     mGUISystem = new CEGUI::System(mGUIRenderer);
71
72         // Mouse
73     CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
74     CEGUI::MouseCursor::getSingleton().setImage("TaharezLook", "MouseArrow");
75         mGUISystem->setDefaultMouseCursor(
76                (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
77
78         CEGUI::MouseCursor::getSingleton().show( );
79}
80//-----------------------------------------------------------------------
81void TestCullingApplication::createFrameListener()
82{
83        mFrameListener= new TerrainMouseQueryListener(mWindow, mCamera, mSceneMgr,
84                mGUIRenderer, mSceneContentGenerator);
85        mFrameListener->showDebugOverlay(true);
86        mRoot->addFrameListener(mFrameListener);
87}
88//-----------------------------------------------------------------------
89void TestCullingApplication::chooseSceneManager(void)
90{
91    mSceneMgr = mRoot->getSceneManager(ST_GENERIC);
92}
93
94
95/***********************************************/
96/* TerrainMouseQueryListener implementation           */
97/***********************************************/
98//-----------------------------------------------------------------------
99TerrainMouseQueryListener::TerrainMouseQueryListener(RenderWindow* win, Camera* cam,
100                                                                           SceneManager *sceneManager,
101                                                                           CEGUI::Renderer *renderer,
102                                                                           SceneContentGenerator *sceneContentGenerator)
103: ExampleFrameListener(win, cam, false, true),
104mSceneMgr(sceneManager),
105mGUIRenderer(renderer),
106mShutdownRequested(false),
107mLMouseDown(false),
108mRMouseDown(false),
109mSceneContentGenerator(sceneContentGenerator),
110mVisibilityThreshold(0),
111mCurrentAlgorithm(GtpVisibility::VisibilityEnvironment::COHERENT_HIERARCHICAL_CULLING),
112mShowOctree(false),
113mUseDepthPass(false),
114mUseOptimization(true),
115mShowVisualization(false),
116mVisualizeCulledNodes(false)
117{
118    // Reduce move speed
119        mMoveSpeed = 50;
120        mRotateSpeed *= 2;
121 
122        // Register this so that we get mouse events.
123        mEventProcessor->addMouseListener(this);
124        mEventProcessor->addMouseMotionListener(this);
125        mEventProcessor->addKeyListener(this);
126
127        // show overlay
128        Overlay* pOver = OverlayManager::getSingleton().getByName("Example/VisibilityDemoOverlay");
129
130        mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/AlgorithmInfo");
131        mThresholdInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ThresholdInfo");
132       
133        mFrustumCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/FrustumCulledNodesInfo");
134        mQueryCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueryCulledNodesInfo");
135    mTraversedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/TraversedNodesInfo");
136        mHierarchyNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/HierarchyNodesInfo");
137        mRenderedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/RenderedNodesInfo");
138        mObjectsInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ObjectsInfo");
139        mUseOptimizationInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/UseOptimizationInfo");
140        mQueriesIssuedInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueriesIssuedInfo");
141
142        mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
143        mThresholdInfo->setCaption(": 0");
144        mFrustumCulledNodesInfo->setCaption(": 0");
145        mQueryCulledNodesInfo->setCaption(": 0");
146        mTraversedNodesInfo->setCaption(": 0");
147        mHierarchyNodesInfo->setCaption(": 0");
148        mRenderedNodesInfo->setCaption(": 0");
149        mObjectsInfo->setCaption(": 0");
150        mUseOptimizationInfo->setCaption(": true");
151        mQueriesIssuedInfo->setCaption(": 0");
152
153        setAlgorithm(mCurrentAlgorithm);
154       
155        mSceneMgr->setOption("UseOptimization", &mUseOptimization);
156        mSceneMgr->setOption("UseDepthPass", &mUseDepthPass);
157        mSceneMgr->setOption("ShowVizualisation", &mShowVisualization);
158        mSceneMgr->setOption("ShowOctree", &mShowOctree);
159
160    pOver->show();
161}
162//-----------------------------------------------------------------------
163TerrainMouseQueryListener::~TerrainMouseQueryListener()
164{
165}
166//-----------------------------------------------------------------------
167void TerrainMouseQueryListener::mouseMoved(MouseEvent *e)
168{
169        // Update CEGUI with the mouse motion
170    CEGUI::System::getSingleton().injectMouseMove(e->getRelX() *
171                mGUIRenderer->getWidth(), e->getRelY() * mGUIRenderer->getHeight());
172}
173//-----------------------------------------------------------------------
174void TerrainMouseQueryListener::mousePressed(MouseEvent* e)
175{
176     // Left mouse button down
177     if (e->getButtonID() & InputEvent::BUTTON0_MASK)
178     {
179                mLMouseDown = true;
180     }
181     // Right mouse button down
182     else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
183     {
184         CEGUI::MouseCursor::getSingleton().hide( );
185         mRMouseDown = true;
186     } // else if
187} // mousePressed
188
189 //-----------------------------------------------------------------------
190void TerrainMouseQueryListener::mouseReleased(MouseEvent* e)
191{
192    // Left mouse button up
193    if (e->getButtonID() & InputEvent::BUTTON0_MASK)
194    {
195                CEGUI::MouseCursor::getSingleton().show();
196        mLMouseDown = false;
197    }
198    // Right mouse button up
199    else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
200    {
201        CEGUI::MouseCursor::getSingleton().show();
202        mRMouseDown = false;
203    }
204}
205//-----------------------------------------------------------------------
206void TerrainMouseQueryListener::mouseDragged (MouseEvent *e)
207 {
208         // If we are dragging the left mouse button.           
209         if ( mLMouseDown )
210     {
211               
212     }
213         // If we are dragging the right mouse button.
214         if ( mRMouseDown )
215         {
216                 mCamera->yaw(-e->getRelX() * mRotateSpeed);
217                 mCamera->pitch(-e->getRelY() * mRotateSpeed);
218         }
219}
220//-----------------------------------------------------------------------
221bool TerrainMouseQueryListener::frameStarted(const FrameEvent &evt)
222{       
223        return ExampleFrameListener::frameStarted(evt);
224}
225//-----------------------------------------------------------------------
226bool TerrainMouseQueryListener::frameEnded(const FrameEvent& evt)
227{
228        if (mShutdownRequested)
229                return false;
230
231    if (timeDelay >= 0)
232        timeDelay -= evt.timeSinceLastFrame;
233
234    KEY_PRESSED(KC_SPACE, 0.3, nextAlgorithm());
235
236        KEY_PRESSED(KC_SUBTRACT, 0, changeThreshold(-10));
237        KEY_PRESSED(KC_ADD, 0, changeThreshold(10));
238        KEY_PRESSED(KC_O, 0.3, toggleUseOptimization());
239        KEY_PRESSED(KC_C, 0.3, toggleUseDepthPass());
240        KEY_PRESSED(KC_V, 0.3, toggleShowViz());
241
242        updateStats();
243
244    return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);       
245}
246//-----------------------------------------------------------------------
247void TerrainMouseQueryListener::changeThreshold(int incr)
248{
249        mVisibilityThreshold += incr;
250        if(mVisibilityThreshold < 0) mVisibilityThreshold = 0;
251       
252        char str[100]; sprintf(str,": %d", mVisibilityThreshold);
253
254        mSceneMgr->setOption("Threshold", &mVisibilityThreshold);
255        mThresholdInfo->setCaption(str);
256}
257//-----------------------------------------------------------------------
258void TerrainMouseQueryListener::nextAlgorithm()
259{
260        mCurrentAlgorithm = ++mCurrentAlgorithm %
261                GtpVisibility::VisibilityEnvironment::NUM_CULLING_MANAGERS,
262
263        setAlgorithm(mCurrentAlgorithm);
264}
265//-----------------------------------------------------------------------
266void TerrainMouseQueryListener::toggleUseOptimization()
267{
268        mUseOptimization = !mUseOptimization;
269
270        mSceneMgr->setOption("UseOptimization", &mUseOptimization);
271
272        if(mUseOptimization)
273                mUseOptimizationInfo->setCaption(": true");
274        else
275                mUseOptimizationInfo->setCaption(": false");
276}
277//-----------------------------------------------------------------------
278void TerrainMouseQueryListener::toggleShowOctree()
279{
280        mShowOctree = !mShowOctree;
281
282        mSceneMgr->setOption("ShowOctree", &mShowOctree);
283}
284//-----------------------------------------------------------------------
285void TerrainMouseQueryListener::toggleUseDepthPass()
286{
287        mUseDepthPass = !mUseDepthPass;
288
289        mSceneMgr->setOption("UseDepthPass", &mUseDepthPass);
290}
291//-----------------------------------------------------------------------
292void TerrainMouseQueryListener::toggleShowViz()
293{
294        mShowVisualization = !mShowVisualization;
295
296        mSceneMgr->setOption("ShowVisualization", &mShowVisualization);
297        mSceneMgr->setOption("VisualizeCulledNodes", &mVisualizeCulledNodes);
298}
299//-----------------------------------------------------------------------
300void TerrainMouseQueryListener::setAlgorithm(int algorithm)
301{
302        mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
303        mSceneMgr->setOption("Algorithm", &mCurrentAlgorithm);
304}
305//-----------------------------------------------------------------------
306void TerrainMouseQueryListener::updateStats()
307{
308        unsigned int opt = 0;
309        char str[100];
310       
311        mSceneMgr->getOption("NumFrustumCulledNodes", &opt); sprintf(str,": %d", opt);
312        mFrustumCulledNodesInfo->setCaption(str);
313       
314        mSceneMgr->getOption("NumQueriesIssued", &opt); sprintf(str,": %d", opt);
315        mQueriesIssuedInfo->setCaption(str);
316
317        mSceneMgr->getOption("NumQueryCulledNodes", &opt); sprintf(str,": %d", opt);
318        mQueryCulledNodesInfo->setCaption(str);
319       
320        mSceneMgr->getOption("NumTraversedNodes", &opt); sprintf(str,": %d", opt);
321        mTraversedNodesInfo->setCaption(str);
322
323        mSceneMgr->getOption("NumHierarchyNodes", &opt); sprintf(str,": %d", opt);
324        mHierarchyNodesInfo->setCaption(str);
325
326        mSceneMgr->getOption("NumRenderedNodes", &opt); sprintf(str,": %d", opt);
327        mRenderedNodesInfo->setCaption(str);
328
329        sprintf(str,": %d", mSceneContentGenerator->GetObjectCount());
330        mObjectsInfo->setCaption(str);
331}
332//-----------------------------------------------------------------------
333void TerrainMouseQueryListener::keyPressed(KeyEvent* e)
334{
335        if(e->getKey() == KC_ESCAPE)
336    {
337                mShutdownRequested = true;
338                e->consume();
339                return;
340        }
341
342        CEGUI::System::getSingleton().injectKeyDown(e->getKey());
343        CEGUI::System::getSingleton().injectChar(e->getKeyChar());
344        e->consume();
345}
346//-----------------------------------------------------------------------
347void TerrainMouseQueryListener::keyReleased(KeyEvent* e)
348{
349        CEGUI::System::getSingleton().injectKeyUp(e->getKey());
350        e->consume();
351}
352//-----------------------------------------------------------------------
353void TerrainMouseQueryListener::keyClicked(KeyEvent* e)
354{
355        // Do nothing
356        e->consume();
357}
358//-----------------------------------------------------------------------
359INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
360{
361    // Create application object
362    TestCullingApplication app;
363
364        try
365        {
366        app.go();
367    }
368        catch( Ogre::Exception& e )
369        {
370        MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
371    }   
372
373    return 0;
374}
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