[61] | 1 | /**
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| 2 | \file
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| 3 | TestCullingTerrainApplication.cpp
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| 4 | \brief
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[74] | 5 | Tests the visibility culling algorithm
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[61] | 6 | */
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| 7 |
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| 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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| 14 |
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| 15 | #include "Ogre.h"
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| 16 | #include "TestCullingTerrainApplication.h"
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| 17 |
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| 18 | #define WIN32_LEAN_AND_MEAN
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| 19 | #include "windows.h"
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| 20 |
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| 21 |
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[80] | 22 | /*******************************************************/
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| 23 | /* TestCullingTerrainApplication implementation */
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| 24 | /*******************************************************/
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[61] | 25 | TestCullingTerrainApplication::~TestCullingTerrainApplication()
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| 26 | {
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[80] | 27 | delete mSceneContentGenerator;
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[61] | 28 | }
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| 29 | //-----------------------------------------------------------------------
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| 30 | void TestCullingTerrainApplication::createCamera( void )
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| 31 | {
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| 32 | // Create the camera
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| 33 | mCamera = mSceneMgr->createCamera("PlayerCam");
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| 34 |
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| 35 | // Position it at 500 in Z direction
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| 36 | mCamera->setPosition(Vector3(128,25,128));
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| 37 |
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| 38 | // Look back along -Z
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| 39 | mCamera->lookAt(Vector3(0,0,-300));
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| 40 | mCamera->setNearClipDistance(1);
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| 41 | mCamera->setFarClipDistance(1000);
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| 42 | }
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| 43 | //-----------------------------------------------------------------------
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[75] | 44 | void TestCullingTerrainApplication::createScene()
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[61] | 45 | {
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| 46 | // Set ambient light
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| 47 | mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
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| 48 |
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| 49 | // Create a light
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| 50 | Light* l = mSceneMgr->createLight("MainLight");
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| 51 | // Accept default settings: point light, white diffuse, just set position
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| 52 | // NB I could attach the light to a SceneNode if I wanted it to move automatically with
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| 53 | // other objects, but I don't
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| 54 | l->setPosition(20,80,50);
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| 55 |
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| 56 | // --Fog
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| 57 | // NB it's VERY important to set this before calling setWorldGeometry
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| 58 | // because the vertex program picked will be different
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| 59 | ColourValue fadeColour(0.93, 0.86, 0.76);
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| 60 | mWindow->getViewport(0)->setBackgroundColour(fadeColour);
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| 61 | //mSceneMgr->setFog( FOG_LINEAR, fadeColour, .001, 500, 1000);
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| 62 |
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| 63 | // Create a skybox
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| 64 | //mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox", 500, false);
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| 65 | //mSceneMgr->setSkyDome( true, "Examples/CloudySky", 5, 8, 500, false );
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| 66 |
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| 67 | /* // Define the required skyplane
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| 68 | Plane plane;
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| 69 | // 5000 world units from the camera
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| 70 | plane.d = 5000;
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| 71 | // Above the camera, facing down
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| 72 | plane.normal = -Vector3::UNIT_Y;
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| 73 | // Create the plane 10000 units wide, tile the texture 3 times
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| 74 | mSceneMgr->setSkyPlane(true, plane, "Examples/SpaceSkyPlane",10000,3);*/
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| 75 |
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| 76 | std::string terrain_cfg("terrain.cfg");
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| 77 | #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
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| 78 | terrain_cfg = mResourcePath + terrain_cfg;
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| 79 | #endif
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[74] | 80 | mSceneMgr->setWorldGeometry(terrain_cfg);
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[61] | 81 | // Infinite far plane?
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| 82 | if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(RSC_INFINITE_FAR_PLANE))
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| 83 | {
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| 84 | mCamera->setFarClipDistance(0);
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| 85 | }
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| 86 |
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| 87 | // Set a nice viewpoint
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| 88 | mCamera->setPosition(707,2500,528);
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| 89 | mCamera->setOrientation(Quaternion(-0.3486, 0.0122, 0.9365, 0.0329));
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[75] | 90 |
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[61] | 91 | // CEGUI setup
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| 92 | setupGui();
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[80] | 93 | // HACK: necessary to call once before the content creation for
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| 94 | // terrain initialisation
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| 95 | mSceneMgr->_renderScene(mCamera, mWindow->getViewport(0), true);
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[74] | 96 |
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[80] | 97 | mSceneContentGenerator = new TerrainContentGenerator(mSceneMgr);
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| 98 | mSceneContentGenerator->GenerateScene(300, "robot.mesh");
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| 99 | // no limitations now: the user can set objects also on peaks
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| 100 | mSceneContentGenerator->SetMaxHeight(5000);
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[61] | 101 | }
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| 102 | //-----------------------------------------------------------------------
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[80] | 103 | void TestCullingTerrainApplication::setupGui()
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[61] | 104 | {
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[75] | 105 | mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY,
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| 106 | false, 3000, ST_EXTERIOR_CLOSE);
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[61] | 107 | mGUISystem = new CEGUI::System(mGUIRenderer);
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| 108 |
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| 109 | // Mouse
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| 110 | CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
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| 111 | CEGUI::MouseCursor::getSingleton().setImage("TaharezLook", "MouseArrow");
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| 112 | mGUISystem->setDefaultMouseCursor(
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| 113 | (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
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| 114 |
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[75] | 115 | CEGUI::MouseCursor::getSingleton().show();
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[61] | 116 | }
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| 117 | //-----------------------------------------------------------------------
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[80] | 118 | void TestCullingTerrainApplication::createFrameListener()
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[61] | 119 | {
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[80] | 120 | mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr,
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| 121 | mGUIRenderer, mSceneContentGenerator);
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[61] | 122 | mFrameListener->showDebugOverlay(true);
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| 123 | mRoot->addFrameListener(mFrameListener);
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| 124 | }
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| 125 | //-----------------------------------------------------------------------
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[80] | 126 | void TestCullingTerrainApplication::chooseSceneManager()
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[61] | 127 | {
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| 128 | mSceneMgr = mRoot->getSceneManager(ST_EXTERIOR_CLOSE);
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| 129 | }
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| 130 | /***********************************************/
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[80] | 131 | /* MouseQueryListener implementation */
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[61] | 132 | /***********************************************/
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| 133 | //-----------------------------------------------------------------------
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[75] | 134 | MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam,
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| 135 | SceneManager *sceneManager,
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[80] | 136 | CEGUI::Renderer *renderer,
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| 137 | TerrainContentGenerator *sceneGenerator):
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[75] | 138 | ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer),
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| 139 | mShutdownRequested(false)
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[61] | 140 | {
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| 141 | // Setup default variables
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| 142 | mCurrentObject = NULL;
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| 143 | mLMouseDown = false;
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| 144 | mRMouseDown = false;
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| 145 | mSceneMgr = sceneManager;
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[80] | 146 | mSceneContentGenerator = sceneGenerator;
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[61] | 147 |
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| 148 | // Reduce move speed
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| 149 | mMoveSpeed = 50;
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| 150 | mRotateSpeed *= 2;
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| 151 |
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[74] | 152 | mCurrentAlgorithm = GtpVisibility::VisibilityEnvironment::COHERENT_HIERARCHICAL_CULLING,
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[61] | 153 | mThreshold = 0;
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| 154 |
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| 155 | // Register this so that we get mouse events.
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| 156 | mEventProcessor->addMouseListener(this);
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| 157 | mEventProcessor->addMouseMotionListener(this);
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| 158 | mEventProcessor->addKeyListener(this);
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| 159 |
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[74] | 160 | mRayQueryExecutor = new RayQueryExecutor(mSceneMgr);
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[75] | 161 |
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[61] | 162 | // show overlay
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| 163 | Overlay* pOver = OverlayManager::getSingleton().getByName("Example/VisibilityDemoOverlay");
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| 164 |
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[74] | 165 | mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/AlgorithmInfo");
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| 166 | mThresholdInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ThresholdInfo");
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| 167 | mFrustumCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/FrustumCulledNodesInfo");
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| 168 | mQueryCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueryCulledNodesInfo");
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| 169 | mTraversedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/TraversedNodesInfo");
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| 170 | mHierarchyNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/HierarchyNodesInfo");
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| 171 | mRenderedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/RenderedNodesInfo");
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[61] | 172 |
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| 173 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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| 174 | mThresholdInfo->setCaption(": 0");
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| 175 | mFrustumCulledNodesInfo->setCaption(": 0");
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| 176 | mQueryCulledNodesInfo->setCaption(": 0");
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| 177 | mTraversedNodesInfo->setCaption(": 0");
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| 178 | mHierarchyNodesInfo->setCaption(": 0");
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| 179 | mRenderedNodesInfo->setCaption(": 0");
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| 180 |
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| 181 | pOver->show();
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| 182 | }
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| 183 | //-----------------------------------------------------------------------
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| 184 | MouseQueryListener::~MouseQueryListener( )
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| 185 | {
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[74] | 186 | delete mRayQueryExecutor;
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[61] | 187 | }
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| 188 | //-----------------------------------------------------------------------
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| 189 | void MouseQueryListener::mouseMoved (MouseEvent *e)
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| 190 | {
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| 191 | // Update CEGUI with the mouse motion
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[75] | 192 | CEGUI::System::getSingleton().injectMouseMove(e->getRelX() * mGUIRenderer->getWidth(),
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| 193 | e->getRelY() * mGUIRenderer->getHeight());
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[61] | 194 | }
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| 195 | //-----------------------------------------------------------------------
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| 196 | void MouseQueryListener::mousePressed(MouseEvent* e)
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| 197 | {
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| 198 | // Left mouse button down
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| 199 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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| 200 | {
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[76] | 201 | CEGUI::MouseCursor::getSingleton().hide();
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[61] | 202 |
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| 203 | // Setup the ray scene query
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[80] | 204 | Ray mouseRay = mCamera->getCameraToViewportRay(e->getX(), e->getY());
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[74] | 205 |
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| 206 | Vector3 queryResult;
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[80] | 207 |
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| 208 | // Get results, create a node/entity on the position
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| 209 | mCurrentObject = mSceneContentGenerator->GenerateSceneObject(
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| 210 | mouseRay.getOrigin(), mouseRay.getDirection(), "robot.mesh");
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| 211 |
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[61] | 212 | mLMouseDown = true;
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| 213 | }
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| 214 | // Right mouse button down
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| 215 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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| 216 | {
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[75] | 217 | CEGUI::MouseCursor::getSingleton().hide();
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[61] | 218 | mRMouseDown = true;
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| 219 | } // else if
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| 220 | } // mousePressed
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| 221 |
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| 222 | //-----------------------------------------------------------------------
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| 223 | void MouseQueryListener::mouseReleased(MouseEvent* e)
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| 224 | {
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| 225 | // Left mouse button up
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| 226 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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| 227 | {
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[75] | 228 | CEGUI::MouseCursor::getSingleton().show();
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[61] | 229 | mLMouseDown = false;
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| 230 | }
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| 231 | // Right mouse button up
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| 232 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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| 233 | {
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[75] | 234 | CEGUI::MouseCursor::getSingleton().show();
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[61] | 235 | mRMouseDown = false;
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| 236 | }
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| 237 | }
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| 238 | //-----------------------------------------------------------------------
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[75] | 239 | void MouseQueryListener::mouseDragged(MouseEvent *e)
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[61] | 240 | {
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| 241 | // If we are dragging the left mouse button.
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[75] | 242 | if (mLMouseDown)
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[61] | 243 | {
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[74] | 244 | Vector3 queryResult;
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| 245 | Ray mouseRay = mCamera->getCameraToViewportRay(e->getX(), e->getY());
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[61] | 246 |
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[74] | 247 | if(mRayQueryExecutor->executeRayQuery(&queryResult, mouseRay))
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[61] | 248 | {
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[80] | 249 | if(mCurrentObject)
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| 250 | mCurrentObject->setPosition(queryResult);
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[74] | 251 | }
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[61] | 252 | }
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| 253 | // If we are dragging the right mouse button.
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[75] | 254 | if (mRMouseDown)
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[61] | 255 | {
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| 256 | mCamera->yaw( -e->getRelX() * mRotateSpeed );
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| 257 | mCamera->pitch( -e->getRelY() * mRotateSpeed );
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| 258 | }
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| 259 | }
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| 260 | //-----------------------------------------------------------------------
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| 261 | bool MouseQueryListener::frameStarted(const FrameEvent &evt)
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| 262 | {
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| 263 | // clamp to terrain
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[74] | 264 | Vector3 camPos = mCamera->getPosition();
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| 265 | Vector3 queryResult;
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[61] | 266 |
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[74] | 267 | if(mRayQueryExecutor->executeRayQuery(&queryResult,
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| 268 | Vector3(camPos.x, 5000.0f, camPos.z), Vector3::NEGATIVE_UNIT_Y))
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[61] | 269 | {
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[74] | 270 | mCamera->setPosition(mCamera->getPosition().x, queryResult.y + 10,
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[61] | 271 | mCamera->getPosition().z);
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| 272 | }
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[75] | 273 |
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[61] | 274 | return ExampleFrameListener::frameStarted(evt);
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| 275 | }
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| 276 | //-----------------------------------------------------------------------
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| 277 | bool MouseQueryListener::frameEnded(const FrameEvent& evt)
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| 278 | {
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| 279 | if (mShutdownRequested)
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| 280 | return false;
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| 281 |
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| 282 | if (timeDelay >= 0)
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| 283 | timeDelay -= evt.timeSinceLastFrame;
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| 284 |
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| 285 | KEY_PRESSED(KC_SPACE, 0.3, changeAlgorithm());
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| 286 |
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| 287 | KEY_PRESSED(KC_SUBTRACT, 0, changeThreshold(-10));
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| 288 | KEY_PRESSED(KC_ADD, 0, changeThreshold(10));
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| 289 | //KEY_PRESSED(KC_T, 1, change);
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| 290 |
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| 291 | changeStats();
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| 292 |
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| 293 | return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);
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| 294 | }
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| 295 | //-----------------------------------------------------------------------
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| 296 | void MouseQueryListener::changeThreshold(int incr)
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| 297 | {
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| 298 | mThreshold += incr; if(mThreshold < 0) mThreshold = 0;
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| 299 |
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| 300 | char str[100]; sprintf(str,": %d", mThreshold);
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| 301 |
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| 302 | mSceneMgr->setOption("Threshold", &mThreshold);
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| 303 | mThresholdInfo->setCaption(str);
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| 304 | }
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| 305 | //-----------------------------------------------------------------------
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| 306 | void MouseQueryListener::changeAlgorithm()
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| 307 | {
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[74] | 308 | mCurrentAlgorithm = ++mCurrentAlgorithm %
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| 309 | GtpVisibility::VisibilityEnvironment::NUM_CULLING_MANAGERS,
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[61] | 310 |
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| 311 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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| 312 | mSceneMgr->setOption("Algorithm", &mCurrentAlgorithm);
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| 313 | }
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| 314 | //-----------------------------------------------------------------------
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| 315 | void MouseQueryListener::changeStats()
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| 316 | {
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| 317 | unsigned int opt = 0;
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| 318 | char str[100];
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| 319 |
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| 320 | mSceneMgr->getOption("NumFrustumCulledNodes", &opt); sprintf(str,": %d", opt);
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| 321 | mFrustumCulledNodesInfo->setCaption(str);
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| 322 |
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| 323 | mSceneMgr->getOption("NumQueryCulledNodes", &opt); sprintf(str,": %d", opt);
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| 324 | mQueryCulledNodesInfo->setCaption(str);
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| 325 |
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| 326 | mSceneMgr->getOption("NumTraversedNodes", &opt); sprintf(str,": %d", opt);
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| 327 | mTraversedNodesInfo->setCaption(str);
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| 328 |
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[74] | 329 | mSceneMgr->getOption("NumHierarchyNodes", &opt); sprintf(str,": %d", opt);
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[61] | 330 | mHierarchyNodesInfo->setCaption(str);
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| 331 |
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| 332 | mSceneMgr->getOption("NumRenderedNodes", &opt); sprintf(str,": %d", opt);
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| 333 | mRenderedNodesInfo->setCaption(str);
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| 334 | }
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| 335 | //-----------------------------------------------------------------------
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| 336 | void MouseQueryListener::keyPressed(KeyEvent* e)
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| 337 | {
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| 338 | if(e->getKey() == KC_ESCAPE)
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| 339 | {
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| 340 | mShutdownRequested = true;
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| 341 | e->consume();
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| 342 | return;
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| 343 | }
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| 344 |
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| 345 | CEGUI::System::getSingleton().injectKeyDown(e->getKey());
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| 346 | CEGUI::System::getSingleton().injectChar(e->getKeyChar());
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| 347 | e->consume();
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| 348 | }
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| 349 | //-----------------------------------------------------------------------
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| 350 | void MouseQueryListener::keyReleased(KeyEvent* e)
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| 351 | {
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| 352 | CEGUI::System::getSingleton().injectKeyUp(e->getKey());
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| 353 | e->consume();
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| 354 | }
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| 355 | //-----------------------------------------------------------------------
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| 356 | void MouseQueryListener::keyClicked(KeyEvent* e)
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| 357 | {
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| 358 | // Do nothing
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| 359 | e->consume();
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| 360 | }
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| 361 | //-----------------------------------------------------------------------
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| 362 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
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| 363 | {
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| 364 | // Create application object
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| 365 | TestCullingTerrainApplication app;
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| 366 |
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| 367 | try
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| 368 | {
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| 369 | app.go();
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| 370 | }
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| 371 | catch( Ogre::Exception& e )
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| 372 | {
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[75] | 373 | MessageBox( NULL, e.getFullDescription().c_str(),
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| 374 | "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
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[61] | 375 | }
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| 376 |
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| 377 | return 0;
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| 378 | } |
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