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 | delete mTerrainContentGenerator;
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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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44 | void TestCullingTerrainApplication::createScene()
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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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80 | mSceneMgr->setWorldGeometry(terrain_cfg);
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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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90 |
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91 | // CEGUI setup
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92 | setupGui();
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93 |
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94 | mTerrainContentGenerator = new TerrainContentGenerator(mSceneMgr);
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95 | mTerrainContentGenerator->generateScene(300, "robot.mesh");
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96 | }
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97 | //-----------------------------------------------------------------------
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98 | void TestCullingTerrainApplication::setupGui( void )
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99 | {
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100 | mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY,
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101 | false, 3000, ST_EXTERIOR_CLOSE);
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102 | mGUISystem = new CEGUI::System(mGUIRenderer);
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103 |
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104 | // Mouse
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105 | CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
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106 | CEGUI::MouseCursor::getSingleton().setImage("TaharezLook", "MouseArrow");
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107 | mGUISystem->setDefaultMouseCursor(
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108 | (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
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109 |
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110 | CEGUI::MouseCursor::getSingleton().show();
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111 | }
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112 | //-----------------------------------------------------------------------
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113 | void TestCullingTerrainApplication::createFrameListener(void)
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114 | {
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115 | mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr, mGUIRenderer);
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116 | mFrameListener->showDebugOverlay(true);
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117 | mRoot->addFrameListener(mFrameListener);
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118 | }
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119 | //-----------------------------------------------------------------------
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120 | void TestCullingTerrainApplication::chooseSceneManager(void)
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121 | {
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122 | mSceneMgr = mRoot->getSceneManager(ST_EXTERIOR_CLOSE);
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123 | }
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124 |
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125 | /***********************************************/
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126 | /* MouseQueryListener implementation */
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127 | /***********************************************/
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128 | //-----------------------------------------------------------------------
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129 | MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam,
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130 | SceneManager *sceneManager,
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131 | CEGUI::Renderer *renderer):
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132 | ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer),
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133 | mShutdownRequested(false)
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134 | {
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135 | // Setup default variables
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136 | mCurrentObject = NULL;
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137 | mLMouseDown = false;
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138 | mRMouseDown = false;
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139 | mSceneMgr = sceneManager;
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140 |
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141 | // Reduce move speed
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142 | mMoveSpeed = 50;
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143 | mRotateSpeed *= 2;
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144 |
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145 | mCurrentAlgorithm = GtpVisibility::VisibilityEnvironment::COHERENT_HIERARCHICAL_CULLING,
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146 | mThreshold = 0;
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147 |
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148 | // Register this so that we get mouse events.
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149 | mEventProcessor->addMouseListener(this);
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150 | mEventProcessor->addMouseMotionListener(this);
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151 | mEventProcessor->addKeyListener(this);
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152 |
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153 | mRayQueryExecutor = new RayQueryExecutor(mSceneMgr);
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154 |
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155 | // show overlay
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156 | Overlay* pOver = OverlayManager::getSingleton().getByName("Example/VisibilityDemoOverlay");
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157 |
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158 | mAlgorithmInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/AlgorithmInfo");
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159 | mThresholdInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/ThresholdInfo");
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160 | mFrustumCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/FrustumCulledNodesInfo");
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161 | mQueryCulledNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/QueryCulledNodesInfo");
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162 | mTraversedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/TraversedNodesInfo");
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163 | mHierarchyNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/HierarchyNodesInfo");
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164 | mRenderedNodesInfo = OverlayManager::getSingleton().getOverlayElement("Example/Visibility/RenderedNodesInfo");
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165 |
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166 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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167 | mThresholdInfo->setCaption(": 0");
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168 | mFrustumCulledNodesInfo->setCaption(": 0");
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169 | mQueryCulledNodesInfo->setCaption(": 0");
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170 | mTraversedNodesInfo->setCaption(": 0");
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171 | mHierarchyNodesInfo->setCaption(": 0");
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172 | mRenderedNodesInfo->setCaption(": 0");
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173 |
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174 | pOver->show();
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175 | }
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176 | //-----------------------------------------------------------------------
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177 | MouseQueryListener::~MouseQueryListener( )
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178 | {
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179 | delete mRayQueryExecutor;
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180 | }
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181 | //-----------------------------------------------------------------------
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182 | void MouseQueryListener::mouseMoved (MouseEvent *e)
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183 | {
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184 | // Update CEGUI with the mouse motion
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185 | CEGUI::System::getSingleton().injectMouseMove(e->getRelX() * mGUIRenderer->getWidth(),
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186 | e->getRelY() * mGUIRenderer->getHeight());
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187 | }
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188 | //-----------------------------------------------------------------------
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189 | void MouseQueryListener::mousePressed(MouseEvent* e)
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190 | {
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191 | // Left mouse button down
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192 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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193 | {
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194 | CEGUI::MouseCursor::getSingleton().hide();
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195 |
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196 | // Setup the ray scene query
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197 | Ray mouseRay = mCamera->getCameraToViewportRay( e->getX(), e->getY() );
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198 |
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199 | Vector3 queryResult;
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200 | // Get results, create a node/entity on the position
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201 | if(mRayQueryExecutor->executeRayQuery(&queryResult, mouseRay))
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202 | {
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203 | char name[16];
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204 | sprintf(name, "Robot%d", mCount++);
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205 |
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206 | Entity *ent = mSceneMgr->createEntity(name, "robot.mesh");
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207 | mCurrentObject = mSceneMgr->getRootSceneNode()->
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208 | createChildSceneNode(String(name) + "Node", queryResult);
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209 | mCurrentObject->attachObject(ent);
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210 | mCurrentObject->setScale(0.1f, 0.1f, 0.1f);
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211 |
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212 | }
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213 |
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214 | mLMouseDown = true;
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215 | }
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216 | // Right mouse button down
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217 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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218 | {
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219 | CEGUI::MouseCursor::getSingleton().hide();
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220 | mRMouseDown = true;
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221 | } // else if
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222 | } // mousePressed
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223 |
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224 | //-----------------------------------------------------------------------
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225 | void MouseQueryListener::mouseReleased(MouseEvent* e)
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226 | {
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227 | // Left mouse button up
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228 | if (e->getButtonID() & InputEvent::BUTTON0_MASK)
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229 | {
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230 | CEGUI::MouseCursor::getSingleton().show();
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231 | mLMouseDown = false;
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232 | }
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233 | // Right mouse button up
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234 | else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
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235 | {
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236 | CEGUI::MouseCursor::getSingleton().show();
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237 | mRMouseDown = false;
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238 | }
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239 | }
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240 | //-----------------------------------------------------------------------
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241 | void MouseQueryListener::mouseDragged(MouseEvent *e)
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242 | {
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243 | // If we are dragging the left mouse button.
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244 | if (mLMouseDown)
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245 | {
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246 | Vector3 queryResult;
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247 | Ray mouseRay = mCamera->getCameraToViewportRay(e->getX(), e->getY());
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248 |
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249 | if(mRayQueryExecutor->executeRayQuery(&queryResult, mouseRay))
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250 | {
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251 | mCurrentObject->setPosition(queryResult);
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252 | }
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253 | }
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254 | // If we are dragging the right mouse button.
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255 | if (mRMouseDown)
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256 | {
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257 | mCamera->yaw( -e->getRelX() * mRotateSpeed );
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258 | mCamera->pitch( -e->getRelY() * mRotateSpeed );
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259 | }
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260 | }
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261 | //-----------------------------------------------------------------------
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262 | bool MouseQueryListener::frameStarted(const FrameEvent &evt)
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263 | {
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264 | // clamp to terrain
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265 | Vector3 camPos = mCamera->getPosition();
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266 | Vector3 queryResult;
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267 |
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268 | if(mRayQueryExecutor->executeRayQuery(&queryResult,
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269 | Vector3(camPos.x, 5000.0f, camPos.z), Vector3::NEGATIVE_UNIT_Y))
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270 | {
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271 | mCamera->setPosition(mCamera->getPosition().x, queryResult.y + 10,
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272 | mCamera->getPosition().z);
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273 | }
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274 |
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275 | return ExampleFrameListener::frameStarted(evt);
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276 | }
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277 | //-----------------------------------------------------------------------
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278 | bool MouseQueryListener::frameEnded(const FrameEvent& evt)
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279 | {
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280 | if (mShutdownRequested)
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281 | return false;
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282 |
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283 | if (timeDelay >= 0)
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284 | timeDelay -= evt.timeSinceLastFrame;
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285 |
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286 | KEY_PRESSED(KC_SPACE, 0.3, changeAlgorithm());
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287 |
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288 | KEY_PRESSED(KC_SUBTRACT, 0, changeThreshold(-10));
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289 | KEY_PRESSED(KC_ADD, 0, changeThreshold(10));
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290 | //KEY_PRESSED(KC_T, 1, change);
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291 |
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292 | changeStats();
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293 |
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294 | return ExampleFrameListener::frameStarted(evt) && ExampleFrameListener::frameEnded(evt);
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295 | }
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296 | //-----------------------------------------------------------------------
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297 | void MouseQueryListener::changeThreshold(int incr)
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298 | {
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299 | mThreshold += incr; if(mThreshold < 0) mThreshold = 0;
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300 |
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301 | char str[100]; sprintf(str,": %d", mThreshold);
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302 |
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303 | mSceneMgr->setOption("Threshold", &mThreshold);
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304 | mThresholdInfo->setCaption(str);
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305 | }
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306 | //-----------------------------------------------------------------------
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307 | void MouseQueryListener::changeAlgorithm()
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308 | {
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309 | mCurrentAlgorithm = ++mCurrentAlgorithm %
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310 | GtpVisibility::VisibilityEnvironment::NUM_CULLING_MANAGERS,
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311 |
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312 | mAlgorithmInfo->setCaption(": " + mCurrentAlgorithmCaptions[mCurrentAlgorithm]);
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313 | mSceneMgr->setOption("Algorithm", &mCurrentAlgorithm);
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314 | }
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315 | //-----------------------------------------------------------------------
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316 | void MouseQueryListener::changeStats()
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317 | {
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318 | unsigned int opt = 0;
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319 | char str[100];
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320 |
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321 | mSceneMgr->getOption("NumFrustumCulledNodes", &opt); sprintf(str,": %d", opt);
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322 | mFrustumCulledNodesInfo->setCaption(str);
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323 |
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324 | mSceneMgr->getOption("NumQueryCulledNodes", &opt); sprintf(str,": %d", opt);
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325 | mQueryCulledNodesInfo->setCaption(str);
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326 |
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327 | mSceneMgr->getOption("NumTraversedNodes", &opt); sprintf(str,": %d", opt);
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328 | mTraversedNodesInfo->setCaption(str);
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329 |
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330 | mSceneMgr->getOption("NumHierarchyNodes", &opt); sprintf(str,": %d", opt);
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331 | mHierarchyNodesInfo->setCaption(str);
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332 |
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333 | mSceneMgr->getOption("NumRenderedNodes", &opt); sprintf(str,": %d", opt);
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334 | mRenderedNodesInfo->setCaption(str);
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335 | }
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336 | //-----------------------------------------------------------------------
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337 | void MouseQueryListener::keyPressed(KeyEvent* e)
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338 | {
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339 | if(e->getKey() == KC_ESCAPE)
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340 | {
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341 | mShutdownRequested = true;
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342 | e->consume();
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343 | return;
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344 | }
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345 |
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346 | CEGUI::System::getSingleton().injectKeyDown(e->getKey());
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347 | CEGUI::System::getSingleton().injectChar(e->getKeyChar());
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348 | e->consume();
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349 | }
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350 | //-----------------------------------------------------------------------
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351 | void MouseQueryListener::keyReleased(KeyEvent* e)
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352 | {
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353 | CEGUI::System::getSingleton().injectKeyUp(e->getKey());
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354 | e->consume();
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355 | }
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356 | //-----------------------------------------------------------------------
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357 | void MouseQueryListener::keyClicked(KeyEvent* e)
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358 | {
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359 | // Do nothing
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360 | e->consume();
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361 | }
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362 | //-----------------------------------------------------------------------
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363 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
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364 | {
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365 | // Create application object
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366 | TestCullingTerrainApplication app;
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367 |
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368 | try
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369 | {
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370 | app.go();
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371 | }
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372 | catch( Ogre::Exception& e )
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373 | {
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374 | MessageBox( NULL, e.getFullDescription().c_str(),
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375 | "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
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376 | }
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377 |
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378 | return 0;
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379 | } |
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