[12] | 1 | /**
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| 2 | \file
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| 3 | TestCullingApplication.cpp
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| 4 | \brief
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| 5 | Tests the occlusion culling algorithm
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| 6 | */
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| 7 |
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[28] | 8 | #include <OgreNoMemoryMacros.h>
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| 9 | #include <CEGUI/CEGUI.h>
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| 10 | #include <../CEGUIRenderer/include/OgreCEGUIRenderer.h>
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| 11 | #include <../CEGUIRenderer/include/OgreCEGUIResourceProvider.h>
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| 12 | #include <../CEGUIRenderer/include/OgreCEGUITexture.h>
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| 13 | #include <OgreMemoryMacros.h>
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[18] | 14 |
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[12] | 15 | #include "Ogre.h"
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| 16 | #include "TestCullingApplication.h"
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[33] | 17 | #include "OgreOcclusionCullingSceneTraverser.h"
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[12] | 18 |
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| 19 | #define WIN32_LEAN_AND_MEAN
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| 20 | #include "windows.h"
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| 21 |
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[34] | 22 | RaySceneQuery* raySceneQuery = 0;
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| 23 |
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[29] | 24 | /***********************************************/
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| 25 | /* TestCullingApplication implementation */
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| 26 | /***********************************************/
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[34] | 27 | TestCullingApplication::~TestCullingApplication()
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| 28 | {
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| 29 | delete raySceneQuery;
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| 30 | }
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| 31 | //-----------------------------------------------------------------------
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| 32 | void TestCullingApplication::createCamera( void )
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| 33 | {
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| 34 | // Create the camera
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| 35 | mCamera = mSceneMgr->createCamera("PlayerCam");
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[29] | 36 |
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[34] | 37 | // Position it at 500 in Z direction
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| 38 | mCamera->setPosition(Vector3(128,25,128));
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[29] | 39 |
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[34] | 40 | // Look back along -Z
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| 41 | mCamera->lookAt(Vector3(0,0,-300));
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| 42 | mCamera->setNearClipDistance( 1 );
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| 43 | mCamera->setFarClipDistance( 1000 );
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| 44 | }
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[29] | 45 | //-----------------------------------------------------------------------
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[12] | 46 | void TestCullingApplication::createScene(void)
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| 47 | {
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[34] | 48 | Plane waterPlane;
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| 49 | // Set ambient light
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| 50 | mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
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| 51 |
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| 52 | // Create a light
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| 53 | Light* l = mSceneMgr->createLight("MainLight");
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| 54 | // Accept default settings: point light, white diffuse, just set position
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| 55 | // NB I could attach the light to a SceneNode if I wanted it to move automatically with
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| 56 | // other objects, but I don't
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| 57 | l->setPosition(20,80,50);
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| 58 |
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| 59 | // Fog
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| 60 | // NB it's VERY important to set this before calling setWorldGeometry
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| 61 | // because the vertex program picked will be different
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| 62 | ColourValue fadeColour(0.93, 0.86, 0.76);
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| 63 | mSceneMgr->setFog( FOG_LINEAR, fadeColour, .001, 500, 1000);
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| 64 | mWindow->getViewport(0)->setBackgroundColour(fadeColour);
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| 65 |
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| 66 | std::string terrain_cfg("terrain.cfg");
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| 67 | #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
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| 68 | terrain_cfg = mResourcePath + terrain_cfg;
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| 69 | #endif
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| 70 | mSceneMgr -> setWorldGeometry( terrain_cfg );
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| 71 | // Infinite far plane?
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| 72 | if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(RSC_INFINITE_FAR_PLANE))
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| 73 | {
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| 74 | mCamera->setFarClipDistance(0);
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| 75 | }
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| 76 |
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| 77 | // Define the required skyplane
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| 78 | Plane plane;
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| 79 | // 5000 world units from the camera
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| 80 | plane.d = 5000;
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| 81 | // Above the camera, facing down
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| 82 | plane.normal = -Vector3::UNIT_Y;
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| 83 |
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| 84 | // Set a nice viewpoint
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| 85 | mCamera->setPosition(707,2500,528);
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| 86 | mCamera->setOrientation(Quaternion(-0.3486, 0.0122, 0.9365, 0.0329));
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| 87 |
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| 88 | raySceneQuery = mSceneMgr->createRayQuery(
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| 89 | Ray(mCamera->getPosition(), Vector3::NEGATIVE_UNIT_Y));
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| 90 |
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[12] | 91 | // Create a skybox
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[34] | 92 | // mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");
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[12] | 93 |
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[18] | 94 | // CEGUI setup
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[34] | 95 | setupGui();
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| 96 | }
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| 97 | //-----------------------------------------------------------------------
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| 98 | void TestCullingApplication::setupGui( void )
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| 99 | {
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| 100 | mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, ST_EXTERIOR_CLOSE);
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[18] | 101 | mGUISystem = new CEGUI::System(mGUIRenderer);
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| 102 |
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| 103 | // Mouse
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| 104 | CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
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| 105 | CEGUI::MouseCursor::getSingleton().setImage("TaharezLook", "MouseArrow");
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| 106 | mGUISystem->setDefaultMouseCursor(
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| 107 | (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
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| 108 |
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| 109 | CEGUI::MouseCursor::getSingleton().show( );
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| 110 |
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| 111 | /* CEGUI::Window* sheet =
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| 112 | CEGUI::WindowManager::getSingleton().loadWindowLayout(
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| 113 | (CEGUI::utf8*)"ogregui.layout");
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| 114 |
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| 115 | mGUISystem->setGUISheet(sheet);*/
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[12] | 116 | }
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[29] | 117 | //-----------------------------------------------------------------------
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| 118 | void TestCullingApplication::createFrameListener(void)
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| 119 | {
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[34] | 120 | mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr, mGUIRenderer);
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[29] | 121 | mFrameListener->showDebugOverlay(true);
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| 122 | mRoot->addFrameListener(mFrameListener);
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| 123 | }
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| 124 | //-----------------------------------------------------------------------
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| 125 | void TestCullingApplication::chooseSceneManager(void)
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| 126 | {
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[33] | 127 | //mSceneMgr = mRoot->getSceneManager(ST_GENERIC);
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| 128 | mSceneMgr = mRoot->getSceneManager(ST_EXTERIOR_CLOSE);
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[29] | 129 | }
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[12] | 130 |
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[29] | 131 | /***********************************************/
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| 132 | /* MouseQueryListener implementation */
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| 133 | /***********************************************/
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[12] | 134 |
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[29] | 135 | //-----------------------------------------------------------------------
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[34] | 136 | MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam, SceneManager *sceneManager, CEGUI::Renderer *renderer)
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| 137 | : ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer),
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| 138 | mShutdownRequested(false)
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[29] | 139 | {
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| 140 |
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[33] | 141 | // Setup default variables
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[34] | 142 | // mCurrentObject = NULL;
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[33] | 143 | mLMouseDown = false;
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| 144 | mRMouseDown = false;
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| 145 | mSceneMgr = sceneManager;
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[29] | 146 |
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[33] | 147 | // Reduce move speed
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| 148 | mMoveSpeed = 50;
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| 149 | mRotateSpeed *= 2;
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[29] | 150 |
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[33] | 151 | mCurrentAlgorithm = OcclusionCullingSceneTraverser::RENDER_COHERENT;
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| 152 | mThreshold = 0;
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| 153 |
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| 154 | // Register this so that we get mouse events.
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| 155 | mEventProcessor->addMouseListener(this);
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| 156 | mEventProcessor->addMouseMotionListener(this);
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| 157 | mEventProcessor->addKeyListener(this);
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[29] | 158 |
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[33] | 159 | // show overlay
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| 160 | Overlay* pOver = OverlayManager::getSingleton().getByName("Example/OcclusionDemoOverlay");
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[30] | 161 |
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[33] | 162 | mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Occlusion/AlgorithmInfo");
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| 163 | mThresholdInfo = OverlayManager::getSingleton().getOverlayElement("Example/Occlusion/ThresholdInfo");
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| 164 | mFrustumCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Occlusion/FrustumCulledNodesInfo");
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| 165 | mQueryCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Occlusion/QueryCulledNodesInfo");
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| 166 | mTraversedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Occlusion/TraversedNodesInfo");
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[30] | 167 |
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[33] | 168 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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| 169 | mThresholdInfo->setCaption(": 0");
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| 170 | mFrustumCulledNodesInfo->setCaption(": 0");
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| 171 | mQueryCulledNodesInfo->setCaption(": 0");
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| 172 | mTraversedNodesInfo->setCaption(": 0");
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| 173 |
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| 174 | pOver->show();
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[29] | 175 | } // MouseQueryListener
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| 176 | //-----------------------------------------------------------------------
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[18] | 177 | void MouseQueryListener::mouseMoved (MouseEvent *e)
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| 178 | {
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| 179 | // Update CEGUI with the mouse motion
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| 180 | CEGUI::System::getSingleton().injectMouseMove(e->getRelX() * mGUIRenderer->getWidth(), e->getRelY() * mGUIRenderer->getHeight());
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| 181 | }
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[29] | 182 | //-----------------------------------------------------------------------
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[18] | 183 | void MouseQueryListener::mousePressed(MouseEvent* e)
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| 184 | {
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| 185 | // Left mouse button down
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| 186 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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| 187 | {
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| 188 | CEGUI::MouseCursor::getSingleton().hide( );
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| 189 | mLMouseDown = true;
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| 190 | } // if
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| 191 | // Right mouse button down
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| 192 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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| 193 | {
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| 194 | CEGUI::MouseCursor::getSingleton().hide( );
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| 195 | mRMouseDown = true;
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| 196 | } // else if
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| 197 | } // mousePressed
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| 198 |
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[29] | 199 | //-----------------------------------------------------------------------
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[18] | 200 | void MouseQueryListener::mouseReleased(MouseEvent* e)
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| 201 | {
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| 202 | // Left mouse button up
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| 203 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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| 204 | {
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| 205 | CEGUI::MouseCursor::getSingleton().show( );
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| 206 | mLMouseDown = false;
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[34] | 207 | }
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[18] | 208 | // Right mouse button up
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| 209 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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| 210 | {
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| 211 | CEGUI::MouseCursor::getSingleton().show( );
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| 212 | mRMouseDown = false;
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[34] | 213 | }
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| 214 | }
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[29] | 215 | //-----------------------------------------------------------------------
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[18] | 216 | void MouseQueryListener::mouseDragged (MouseEvent *e)
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| 217 | {
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[34] | 218 | /*
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| 219 | // If we are dragging the left mouse button.
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| 220 | if ( mLMouseDown )
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| 221 | {
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| 222 | mShipNode->translate(-e->getRelX() * 200, -e->getRelY() * 200, 0.0);
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| 223 | }
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| 224 | */
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| 225 |
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| 226 | // If we are dragging the right mouse button.
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| 227 | if ( mRMouseDown )
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| 228 | {
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| 229 | mCamera->yaw( -e->getRelX() * mRotateSpeed );
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| 230 | mCamera->pitch( -e->getRelY() * mRotateSpeed );
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| 231 | }
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| 232 | }
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[29] | 233 | //-----------------------------------------------------------------------
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[34] | 234 | bool MouseQueryListener::frameStarted(const FrameEvent &evt)
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| 235 | {
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| 236 | // clamp to terrain
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| 237 | static Ray updateRay;
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| 238 | updateRay.setOrigin(mCamera->getPosition());
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| 239 | updateRay.setDirection(Vector3::NEGATIVE_UNIT_Y);
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| 240 | raySceneQuery->setRay(updateRay);
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| 241 | RaySceneQueryResult& qryResult = raySceneQuery->execute();
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| 242 | RaySceneQueryResult::iterator i = qryResult.begin();
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| 243 |
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| 244 | if (i != qryResult.end() && i->worldFragment)
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| 245 | {
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| 246 | SceneQuery::WorldFragment* wf = i->worldFragment;
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| 247 | mCamera->setPosition(mCamera->getPosition().x,
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| 248 | i->worldFragment->singleIntersection.y + 10,
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| 249 | mCamera->getPosition().z);
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| 250 | }
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| 251 |
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| 252 | return ExampleFrameListener::frameStarted(evt);
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| 253 | }
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| 254 | //-----------------------------------------------------------------------
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[29] | 255 | bool MouseQueryListener::frameEnded(const FrameEvent& evt)
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| 256 | {
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[32] | 257 | if (mShutdownRequested)
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| 258 | return false;
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| 259 |
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[29] | 260 | if (timeDelay >= 0)
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| 261 | timeDelay -= evt.timeSinceLastFrame;
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[18] | 262 |
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[32] | 263 | KEY_PRESSED(KC_SPACE, 0.3, changeAlgorithm());
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| 264 |
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| 265 | KEY_PRESSED(KC_SUBTRACT, 0.3, changeThreshold(-10));
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| 266 | KEY_PRESSED(KC_ADD, 0, changeThreshold(10));
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| 267 | //KEY_PRESSED(KC_T, 1, change);
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[29] | 268 |
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[30] | 269 | changeStats();
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| 270 |
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[29] | 271 | return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);
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| 272 | }
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| 273 | //-----------------------------------------------------------------------
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[32] | 274 | void MouseQueryListener::changeThreshold(int incr)
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| 275 | {
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| 276 | mThreshold += incr; if(mThreshold < 0) mThreshold = 0;
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| 277 |
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| 278 | char str[100]; sprintf(str,": %d", mThreshold);
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| 279 |
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| 280 | mSceneMgr->setOption("Threshold", &mThreshold);
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| 281 | mThresholdInfo->setCaption(str);
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| 282 | }
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| 283 | //-----------------------------------------------------------------------
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[29] | 284 | void MouseQueryListener::changeAlgorithm()
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| 285 | {
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[32] | 286 | mCurrentAlgorithm = ++mCurrentAlgorithm % OcclusionCullingSceneTraverser::NUM_RENDERMODES;
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[18] | 287 |
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[30] | 288 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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[29] | 289 | mSceneMgr->setOption("Algorithm", &mCurrentAlgorithm);
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| 290 | }
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[30] | 291 | //-----------------------------------------------------------------------
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| 292 | void MouseQueryListener::changeStats()
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| 293 | {
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| 294 | unsigned int opt = 0;
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[31] | 295 | char str[100];
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[32] | 296 |
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| 297 | mSceneMgr->getOption("NumFrustumCulledNodes", &opt); sprintf(str,": %d", opt);
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| 298 | mFrustumCulledNodesInfo->setCaption(str);
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| 299 |
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| 300 | mSceneMgr->getOption("NumQueryCulledNodes", &opt); sprintf(str,": %d", opt);
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| 301 | mQueryCulledNodesInfo->setCaption(str);
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| 302 |
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| 303 | mSceneMgr->getOption("NumTraversedNodes", &opt); sprintf(str,": %d", opt);
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| 304 | mTraversedNodesInfo->setCaption(str);
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[30] | 305 | }
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| 306 | //-----------------------------------------------------------------------
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[32] | 307 | void MouseQueryListener::keyPressed(KeyEvent* e)
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| 308 | {
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| 309 | if(e->getKey() == KC_ESCAPE)
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| 310 | {
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| 311 | mShutdownRequested = true;
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| 312 | e->consume();
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| 313 | return;
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| 314 | }
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| 315 |
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| 316 | CEGUI::System::getSingleton().injectKeyDown(e->getKey());
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| 317 | CEGUI::System::getSingleton().injectChar(e->getKeyChar());
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| 318 | e->consume();
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| 319 | }
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| 320 | //-----------------------------------------------------------------------
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| 321 | void MouseQueryListener::keyReleased(KeyEvent* e)
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| 322 | {
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| 323 | CEGUI::System::getSingleton().injectKeyUp(e->getKey());
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| 324 | e->consume();
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| 325 | }
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| 326 | //-----------------------------------------------------------------------
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| 327 | void MouseQueryListener::keyClicked(KeyEvent* e)
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| 328 | {
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| 329 | // Do nothing
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| 330 | e->consume();
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| 331 | }
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| 332 | //-----------------------------------------------------------------------
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[12] | 333 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
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| 334 | {
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| 335 | // Create application object
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| 336 | TestCullingApplication app;
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| 337 |
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[34] | 338 | try
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| 339 | {
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[12] | 340 | app.go();
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[34] | 341 | }
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| 342 | catch( Ogre::Exception& e )
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| 343 | {
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[12] | 344 | MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
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[16] | 345 | }
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[12] | 346 |
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| 347 | return 0;
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[18] | 348 | } |
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