1 | /**
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2 | \file
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3 | TestCullingTerrainApplication.cpp
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4 | \brief
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5 | Tests the visibility culling algorithm
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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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22 | /*******************************************************/
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23 | /* TestCullingTerrainApplication implementation */
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24 | /*******************************************************/
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25 | TestCullingTerrainApplication::~TestCullingTerrainApplication()
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26 | {
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27 | if(mTerrainContentGenerator)
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28 | delete mTerrainContentGenerator;
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29 | //if(mVisualizationCamera) delete mVisualizationCamera;
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30 | }
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31 | //-----------------------------------------------------------------------
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32 | void TestCullingTerrainApplication::createCamera()
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33 | {
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34 | // Create the camera
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35 | mCamera = mSceneMgr->createCamera("CullCamera");
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36 |
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37 | // Set a nice viewpoint
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38 | mCamera->setPosition(707, 2500, 528);
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39 | mCamera->setOrientation(Quaternion(-0.3486, 0.0122, 0.9365, 0.0329));
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40 |
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41 | //--create cull camera
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42 | mVisualizationCamera = mSceneMgr->createCamera("VisualizationCamera");
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43 | mVisualizationCamera->setPosition(707, 2500, 528);
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44 | mVisualizationCamera->setOrientation(Quaternion(-0.3486, 0.0122, 0.9365, 0.0329));
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45 |
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46 | mVisualizationCamera->setNearClipDistance(1);
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47 | mCamera->setNearClipDistance(1);
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48 |
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49 | // Infinite far plane?
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50 | if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(RSC_INFINITE_FAR_PLANE))
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51 | {
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52 | mVisualizationCamera->setFarClipDistance(0);
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53 | mCamera->setFarClipDistance(0);
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54 | }
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55 | else
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56 | {
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57 | mVisualizationCamera->setFarClipDistance(1000);
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58 | mCamera->setFarClipDistance(1000);
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59 | }
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60 |
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61 | }
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62 | //-----------------------------------------------------------------------
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63 | void TestCullingTerrainApplication::createScene()
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64 | {
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65 | // Set ambient light
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66 | mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
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67 |
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68 | // Create a light
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69 | Light* l = mSceneMgr->createLight("MainLight");
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70 | // Accept default settings: point light, white diffuse, just set position
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71 | // NB I could attach the light to a SceneNode if I wanted it to move automatically with
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72 | // other objects, but I don't
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73 | l->setPosition(20,80,50);
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74 |
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75 | // --Fog
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76 | // NB it's VERY important to set this before calling setWorldGeometry
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77 | // because the vertex program picked will be different
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78 | ColourValue fadeColour(0.93, 0.86, 0.76);
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79 | mWindow->getViewport(0)->setBackgroundColour(fadeColour);
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80 | //mSceneMgr->setFog( FOG_LINEAR, fadeColour, .001, 500, 1000);
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81 |
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82 | // Create a skybox
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83 | mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox", 5000, false);
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84 | //mSceneMgr->setSkyDome( true, "Examples/CloudySky", 5, 8, 500, false );
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85 |
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86 | /* // Define the required skyplane
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87 | Plane plane;
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88 | // 5000 world units from the camera
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89 | plane.d = 5000;
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90 | // Above the camera, facing down
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91 | plane.normal = -Vector3::UNIT_Y;
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92 | // Create the plane 10000 units wide, tile the texture 3 times
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93 | mSceneMgr->setSkyPlane(true, plane, "Examples/SpaceSkyPlane",10000,3);*/
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94 |
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95 | std::string terrain_cfg("terrain.cfg");
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96 | #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
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97 | terrain_cfg = mResourcePath + terrain_cfg;
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98 | #endif
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99 | mSceneMgr->setWorldGeometry(terrain_cfg);
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100 |
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101 | // CEGUI setup
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102 | setupGui();
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103 | // HACK: necessary to call once before the content creation for
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104 | // terrain initialisation
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105 | mSceneMgr->_renderScene(mCamera, mWindow->getViewport(0), true);
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106 |
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107 | mTerrainContentGenerator = new TerrainContentGenerator(mSceneMgr);
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108 | // mTerrainContentGenerator->GenerateScene(500, "ninja.mesh");
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109 | mTerrainContentGenerator->GenerateScene(1000, "robot.mesh");
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110 |
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111 | // no limitations needed anymore: the user can set
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112 | // objects also on peaks of terrain
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113 | mTerrainContentGenerator->SetMaxHeight(5000);
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114 | }
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115 | //-----------------------------------------------------------------------
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116 | void TestCullingTerrainApplication::setupGui()
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117 | {
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118 | mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY,
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119 | false, 3000, ST_EXTERIOR_CLOSE);
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120 | mGUISystem = new CEGUI::System(mGUIRenderer);
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121 |
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122 | // Mouse
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123 | CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
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124 | CEGUI::MouseCursor::getSingleton().setImage("TaharezLook", "MouseArrow");
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125 | mGUISystem->setDefaultMouseCursor(
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126 | (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
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127 |
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128 | CEGUI::MouseCursor::getSingleton().show();
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129 | }
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130 | //-----------------------------------------------------------------------
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131 | void TestCullingTerrainApplication::createFrameListener()
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132 | {
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133 | mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr,
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134 | mGUIRenderer, mTerrainContentGenerator, mVisualizationCamera);
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135 | mFrameListener->showDebugOverlay(true);
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136 | mRoot->addFrameListener(mFrameListener);
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137 | }
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138 | //-----------------------------------------------------------------------
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139 | void TestCullingTerrainApplication::chooseSceneManager()
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140 | {
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141 | mSceneMgr = mRoot->getSceneManager(ST_EXTERIOR_CLOSE);
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142 | }
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143 | /***********************************************/
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144 | /* MouseQueryListener implementation */
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145 | /***********************************************/
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146 | //-----------------------------------------------------------------------
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147 | MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam,
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148 | SceneManager *sceneManager,
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149 | CEGUI::Renderer *renderer,
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150 | TerrainContentGenerator *sceneGenerator,
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151 | Camera *vizCamera):
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152 | ExampleFrameListener(win, cam, false, true),
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153 | mGUIRenderer(renderer),
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154 | mShutdownRequested(false),
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155 | mLMouseDown(false),
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156 | mRMouseDown(false),
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157 | mSceneMgr(sceneManager),
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158 | mCurrentObject(NULL),
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159 | mTerrainContentGenerator(sceneGenerator),
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160 | mVisibilityThreshold(0),
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161 | mCurrentAlgorithm(GtpVisibility::VisibilityEnvironment::COHERENT_HIERARCHICAL_CULLING),
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162 | mShowOctree(false),
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163 | mUseCulling(true),
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164 | mUseOptimization(true),
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165 | mUseCullCamera(false),
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166 | mVisualizationCamera(vizCamera)
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167 | {
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168 | // Reduce move speed
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169 | mMoveSpeed = 50;
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170 | mRotateSpeed *= 2;
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171 |
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172 | // Register this so that we get mouse events.
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173 | mEventProcessor->addMouseListener(this);
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174 | mEventProcessor->addMouseMotionListener(this);
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175 | mEventProcessor->addKeyListener(this);
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176 |
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177 | mRayQueryExecutor = new RayQueryExecutor(mSceneMgr);
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178 |
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179 | // show overlay
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180 | Overlay* pOver = OverlayManager::getSingleton().getByName("Example/VisibilityDemoOverlay");
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181 |
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182 | mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/AlgorithmInfo");
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183 | mThresholdInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ThresholdInfo");
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184 |
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185 | mFrustumCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/FrustumCulledNodesInfo");
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186 | mQueryCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueryCulledNodesInfo");
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187 | mTraversedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/TraversedNodesInfo");
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188 | mHierarchyNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/HierarchyNodesInfo");
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189 | mRenderedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/RenderedNodesInfo");
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190 | mObjectsInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ObjectsInfo");
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191 | mUseOptimizationInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/UseOptimizationInfo");
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192 | mQueriesIssuedInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueriesIssuedInfo");
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193 |
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194 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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195 | mThresholdInfo->setCaption(": 0");
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196 | mFrustumCulledNodesInfo->setCaption(": 0");
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197 | mQueryCulledNodesInfo->setCaption(": 0");
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198 | mTraversedNodesInfo->setCaption(": 0");
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199 | mHierarchyNodesInfo->setCaption(": 0");
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200 | mRenderedNodesInfo->setCaption(": 0");
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201 | mObjectsInfo->setCaption(": 0");
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202 | mUseOptimizationInfo->setCaption(": true");
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203 | mQueriesIssuedInfo->setCaption(": 0");
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204 |
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205 | setAlgorithm(mCurrentAlgorithm);
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206 |
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207 | mSceneMgr->setOption("UseOptimization", &mUseOptimization);
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208 | mSceneMgr->setOption("UseCulling", &mUseCulling);
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209 | mSceneMgr->setOption("CullCamera", &mUseCullCamera);
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210 | mSceneMgr->setOption("ShowOctree", &mShowOctree);
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211 |
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212 | pOver->show();
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213 | }
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214 | //-----------------------------------------------------------------------
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215 | MouseQueryListener::~MouseQueryListener( )
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216 | {
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217 | delete mRayQueryExecutor;
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218 | }
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219 | //-----------------------------------------------------------------------
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220 | void MouseQueryListener::mouseMoved (MouseEvent *e)
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221 | {
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222 | // Update CEGUI with the mouse motion
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223 | CEGUI::System::getSingleton().injectMouseMove(e->getRelX() * mGUIRenderer->getWidth(),
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224 | e->getRelY() * mGUIRenderer->getHeight());
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225 | }
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226 | //-----------------------------------------------------------------------
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227 | void MouseQueryListener::mousePressed(MouseEvent* e)
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228 | {
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229 | // Left mouse button down
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230 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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231 | {
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232 | CEGUI::MouseCursor::getSingleton().hide();
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233 |
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234 | // Setup the ray scene query
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235 | Ray mouseRay = mCamera->getCameraToViewportRay(e->getX(), e->getY());
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236 |
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237 | Vector3 queryResult;
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238 |
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239 | // Get results, create a node/entity on the position
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240 | mCurrentObject = mTerrainContentGenerator->GenerateSceneObject(
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241 | mouseRay.getOrigin(), mouseRay.getDirection(), "robot.mesh");
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242 |
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243 | mLMouseDown = true;
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244 | }
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245 | // Right mouse button down
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246 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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247 | {
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248 | CEGUI::MouseCursor::getSingleton().hide();
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249 | mRMouseDown = true;
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250 | } // else if
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251 | } // mousePressed
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252 |
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253 | //-----------------------------------------------------------------------
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254 | void MouseQueryListener::mouseReleased(MouseEvent* e)
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255 | {
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256 | // Left mouse button up
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257 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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258 | {
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259 | CEGUI::MouseCursor::getSingleton().show();
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260 | mLMouseDown = false;
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261 | }
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262 | // Right mouse button up
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263 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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264 | {
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265 | CEGUI::MouseCursor::getSingleton().show();
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266 | mRMouseDown = false;
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267 | }
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268 | }
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269 | //-----------------------------------------------------------------------
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270 | void MouseQueryListener::mouseDragged(MouseEvent *e)
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271 | {
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272 | // If we are dragging the left mouse button.
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273 | if (mLMouseDown)
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274 | {
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275 | Vector3 queryResult;
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276 | Ray mouseRay = mCamera->getCameraToViewportRay(e->getX(), e->getY());
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277 |
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278 | if(mRayQueryExecutor->executeRayQuery(&queryResult, mouseRay))
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279 | {
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280 | if(mCurrentObject)
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281 | mCurrentObject->setPosition(queryResult);
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282 | }
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283 | }
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284 | // If we are dragging the right mouse button.
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285 | if (mRMouseDown)
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286 | {
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287 | mCamera->yaw( -e->getRelX() * mRotateSpeed );
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288 | mCamera->pitch( -e->getRelY() * mRotateSpeed );
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289 | }
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290 | }
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291 | //-----------------------------------------------------------------------
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292 | bool MouseQueryListener::frameStarted(const FrameEvent &evt)
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293 | {
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294 | clamp2Terrain(mCamera);
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295 | clamp2Terrain(mVisualizationCamera);
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296 |
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297 | return ExampleFrameListener::frameStarted(evt);
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298 | }
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299 | void MouseQueryListener::clamp2Terrain(Camera *cam)
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300 | {
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301 | // clamp to terrain
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302 | Vector3 camPos = cam->getPosition();
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303 | Vector3 queryResult;
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304 |
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305 | if(mRayQueryExecutor->executeRayQuery(&queryResult,
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306 | Vector3(camPos.x, 5000.0f, camPos.z), Vector3::NEGATIVE_UNIT_Y))
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307 | {
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308 | cam->setPosition(cam->getPosition().x, queryResult.y + 10,
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309 | cam->getPosition().z);
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310 | }
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311 | }
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312 | //-----------------------------------------------------------------------
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313 | bool MouseQueryListener::frameEnded(const FrameEvent& evt)
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314 | {
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315 | if (mShutdownRequested)
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316 | return false;
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317 |
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318 | if (timeDelay >= 0)
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319 | timeDelay -= evt.timeSinceLastFrame;
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320 |
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321 | KEY_PRESSED(KC_SPACE, 0.3, nextAlgorithm());
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322 |
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323 | KEY_PRESSED(KC_SUBTRACT, 0, changeThreshold(-10));
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324 | KEY_PRESSED(KC_ADD, 0, changeThreshold(10));
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325 | KEY_PRESSED(KC_O, 0.3, toggleUseOptimization());
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326 | KEY_PRESSED(KC_S, 0.3, toggleShowOctree());
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327 | KEY_PRESSED(KC_C, 0.3, toggleUseCulling());
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328 | KEY_PRESSED(KC_V, 0.3, toggleCullCamera());
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329 | KEY_PRESSED(KC_X, 0.3, FixVizCamera());
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330 |
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331 | updateStats();
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332 | //if(mWindow->getViewport(1)) mWindow->getViewport(1)->update();
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333 |
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334 | return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);
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335 | }
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336 | //-----------------------------------------------------------------------
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337 | void MouseQueryListener::changeThreshold(int incr)
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338 | {
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339 | mVisibilityThreshold += incr;
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340 | if(mVisibilityThreshold < 0) mVisibilityThreshold = 0;
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341 |
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342 | char str[100]; sprintf(str,": %d", mVisibilityThreshold);
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343 |
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344 | mSceneMgr->setOption("Threshold", &mVisibilityThreshold);
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345 | mThresholdInfo->setCaption(str);
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346 | }
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347 | //-----------------------------------------------------------------------
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348 | void MouseQueryListener::nextAlgorithm()
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349 | {
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350 | mCurrentAlgorithm = ++mCurrentAlgorithm %
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351 | GtpVisibility::VisibilityEnvironment::NUM_CULLING_MANAGERS,
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352 |
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353 | setAlgorithm(mCurrentAlgorithm);
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354 | }
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355 | //-----------------------------------------------------------------------
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356 | void MouseQueryListener::setAlgorithm(int algorithm)
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357 | {
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358 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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359 | mSceneMgr->setOption("Algorithm", &mCurrentAlgorithm);
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360 | }
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361 | //-----------------------------------------------------------------------
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362 | void MouseQueryListener::updateStats()
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363 | {
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364 | unsigned int opt = 0;
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365 | char str[100];
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366 |
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367 | mSceneMgr->getOption("NumFrustumCulledNodes", &opt); sprintf(str,": %d", opt);
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368 | mFrustumCulledNodesInfo->setCaption(str);
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369 |
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370 | mSceneMgr->getOption("NumQueriesIssued", &opt); sprintf(str,": %d", opt);
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371 | mQueriesIssuedInfo->setCaption(str);
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372 |
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373 | mSceneMgr->getOption("NumQueryCulledNodes", &opt); sprintf(str,": %d", opt);
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374 | mQueryCulledNodesInfo->setCaption(str);
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375 |
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376 | mSceneMgr->getOption("NumTraversedNodes", &opt); sprintf(str,": %d", opt);
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377 | mTraversedNodesInfo->setCaption(str);
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378 |
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379 | mSceneMgr->getOption("NumHierarchyNodes", &opt); sprintf(str,": %d", opt);
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380 | mHierarchyNodesInfo->setCaption(str);
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381 |
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382 | mSceneMgr->getOption("NumRenderedNodes", &opt); sprintf(str,": %d", opt);
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383 | mRenderedNodesInfo->setCaption(str);
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384 |
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385 | sprintf(str,": %d", mTerrainContentGenerator->GetObjectCount());
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386 | mObjectsInfo->setCaption(str);
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387 | }
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388 | //-----------------------------------------------------------------------
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389 | void MouseQueryListener::toggleUseOptimization()
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390 | {
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391 | mUseOptimization = !mUseOptimization;
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392 |
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393 | mSceneMgr->setOption("UseOptimization", &mUseOptimization);
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394 |
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395 | if(mUseOptimization)
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396 | mUseOptimizationInfo->setCaption(": true");
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397 | else
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398 | mUseOptimizationInfo->setCaption(": false");
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399 | }
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400 | //-----------------------------------------------------------------------
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401 | void MouseQueryListener::toggleShowOctree()
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402 | {
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403 | mShowOctree = !mShowOctree;
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404 |
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405 | mSceneMgr->setOption("ShowOctree", &mShowOctree);
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406 | }
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407 | //-----------------------------------------------------------------------
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408 | void MouseQueryListener::toggleUseCulling()
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409 | {
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410 | mUseCulling = !mUseCulling;
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411 |
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412 | mSceneMgr->setOption("UseCulling", &mUseCulling);
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413 | }
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414 | //-----------------------------------------------------------------------
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415 | void MouseQueryListener::toggleCullCamera()
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416 | {
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417 | mUseCullCamera = !mUseCullCamera;
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418 |
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419 | if(mUseCullCamera)
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420 | {
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421 | mWindow->addViewport(mVisualizationCamera, 10, 0.5, 0.5, 1, 1);
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422 | mWindow->getViewport(1)->setClearEveryFrame(true);
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423 | }
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424 | else
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425 | mWindow->removeViewport(10);
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426 |
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427 | mSceneMgr->setOption("CullCamera", &mUseCullCamera);
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428 | }
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429 | //-----------------------------------------------------------------------
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430 | void MouseQueryListener::FixVizCamera()
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431 | {
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432 | mVisualizationCamera->setPosition(mCamera->getPosition());
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433 | mVisualizationCamera->setOrientation(mCamera->getOrientation());
|
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434 | clamp2Terrain(mVisualizationCamera);
|
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435 | }
|
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436 |
|
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437 | //-----------------------------------------------------------------------
|
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438 | void MouseQueryListener::keyPressed(KeyEvent* e)
|
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439 | {
|
---|
440 | if(e->getKey() == KC_ESCAPE)
|
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441 | {
|
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442 | mShutdownRequested = true;
|
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443 | e->consume();
|
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444 | return;
|
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445 | }
|
---|
446 |
|
---|
447 | CEGUI::System::getSingleton().injectKeyDown(e->getKey());
|
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448 | CEGUI::System::getSingleton().injectChar(e->getKeyChar());
|
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449 | e->consume();
|
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450 | }
|
---|
451 | //-----------------------------------------------------------------------
|
---|
452 | void MouseQueryListener::keyReleased(KeyEvent* e)
|
---|
453 | {
|
---|
454 | CEGUI::System::getSingleton().injectKeyUp(e->getKey());
|
---|
455 | e->consume();
|
---|
456 | }
|
---|
457 | //-----------------------------------------------------------------------
|
---|
458 | void MouseQueryListener::keyClicked(KeyEvent* e)
|
---|
459 | {
|
---|
460 | // Do nothing
|
---|
461 | e->consume();
|
---|
462 | }
|
---|
463 | //-----------------------------------------------------------------------
|
---|
464 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
|
---|
465 | {
|
---|
466 | // Create application object
|
---|
467 | TestCullingTerrainApplication app;
|
---|
468 |
|
---|
469 | try
|
---|
470 | {
|
---|
471 | app.go();
|
---|
472 | }
|
---|
473 | catch( Ogre::Exception& e )
|
---|
474 | {
|
---|
475 | MessageBox( NULL, e.getFullDescription().c_str(),
|
---|
476 | "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
|
---|
477 | }
|
---|
478 |
|
---|
479 | return 0;
|
---|
480 | } |
---|