1 | #include "OgreVisibilityOctreeSceneManager.h"
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2 | #include "OgreVisibilityOptionsManager.h"
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3 | #include <OgreMath.h>
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4 | #include <OgreIteratorWrappers.h>
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5 | #include <OgreRenderSystem.h>
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6 | #include <OgreCamera.h>
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7 | #include <OgreLogManager.h>
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8 |
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9 | namespace Ogre {
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10 |
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11 | //-----------------------------------------------------------------------
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12 | VisibilityOctreeSceneManager::VisibilityOctreeSceneManager(
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13 | GtpVisibility::VisibilityManager *visManager)
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14 | : mVisibilityManager(visManager), mUseCulling(true)
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15 | {
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16 | mHierarchyInterface =
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17 | new OctreeHierarchyInterface(this, mDestRenderSystem);
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18 |
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19 | //mDisplayNodes = true;
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20 | //mShowBoundingBoxes = true;
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21 | //mShowBoxes = true;
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22 |
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23 | // TODO: find reasonable value for max depth
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24 | mMaxDepth = 50;
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25 | }
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26 | //-----------------------------------------------------------------------
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27 | VisibilityOctreeSceneManager::~VisibilityOctreeSceneManager()
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28 | {
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29 | delete mHierarchyInterface;
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30 | }
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31 | //-----------------------------------------------------------------------
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32 | void VisibilityOctreeSceneManager::_renderVisibleObjects()
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33 | {
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34 | // two cameras (one for culling, one for rendering)
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35 | mHierarchyInterface->InitFrame(mOctree, mCameraInProgress,
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36 | mCullCamera ? getCamera("CullCamera") : NULL);
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37 | mVisibilityManager->GetCullingManager()->InitFrame();
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38 |
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39 | // standard scenemanager rendering without hierarchical culling
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40 | if(!mUseCulling)
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41 | {
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42 | OctreeSceneManager::_renderVisibleObjects();
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43 | return;
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44 | }
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45 |
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46 | //-- hierarchical culling
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47 | // the objects of different layers (e.g., background, scene,
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48 | // overlay) must be identified and rendered one after another
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49 |
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50 | //-- render background
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51 | clearSpecialCaseRenderQueues();
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52 | addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
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53 | addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
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54 |
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55 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
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56 | SceneManager::_renderVisibleObjects();
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57 |
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58 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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59 | _deleteRenderedQueueGroups();
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60 | #endif
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61 |
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62 | //-- render visible objects (i.e., all but overlay)
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63 | clearSpecialCaseRenderQueues();
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64 | addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
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65 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
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66 |
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67 | //-- the hierarchical culling algorithm
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68 | mVisibilityManager->ApplyVisibilityCulling();
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69 |
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70 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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71 | _deleteRenderedQueueGroups();
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72 | #endif
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73 |
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74 | //-- render remaining objects, e.g., overlay
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75 | clearSpecialCaseRenderQueues();
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76 | SceneManager::_renderVisibleObjects();
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77 |
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78 | // write out stats
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79 | WriteLog();
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80 | }
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81 | //-----------------------------------------------------------------------
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82 | void VisibilityOctreeSceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
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83 | {
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84 | // empty if hierarchical culling is used =>
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85 | // we interleave identification and rendering of objects
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86 | // in _renderVisibibleObjects
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87 | if(!mUseCulling)
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88 | {
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89 | OctreeSceneManager::_findVisibleObjects(cam, onlyShadowCasters);
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90 | }
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91 | }
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92 | //-----------------------------------------------------------------------
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93 | void VisibilityOctreeSceneManager::_updateSceneGraph(Camera* cam)
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94 | {
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95 | mVisibilityManager->GetCullingManager()->SetHierarchyInterface(mHierarchyInterface);
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96 | mHierarchyInterface->SetRenderSystem(mDestRenderSystem);
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97 |
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98 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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99 | mHierarchyInterface->SetNumOctreeNodes(mNumOctreeNodes);
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100 | #endif
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101 | OctreeSceneManager::_updateSceneGraph(cam);
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102 | }
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103 | //-----------------------------------------------------------------------
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104 | bool VisibilityOctreeSceneManager::setOption(const String & key, const void * val)
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105 | {
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106 | if (key == "UseCulling")
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107 | {
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108 | mUseCulling = (*static_cast<const bool *>(val));
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109 | return true;
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110 | }
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111 |
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112 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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113 | setOption(key, val) || OctreeSceneManager::setOption(key, val);
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114 | }
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115 | //-----------------------------------------------------------------------
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116 | bool VisibilityOctreeSceneManager::getOption(const String & key, void *val)
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117 | {
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118 | if (key == "NumHierarchyNodes")
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119 | {
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120 | * static_cast<unsigned int *>(val) = (unsigned int)mNumOctreeNodes;
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121 | return true;
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122 | }
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123 |
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124 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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125 | getOption(key, val) && OctreeSceneManager::getOption(key, val);
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126 | }
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127 | //-----------------------------------------------------------------------
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128 | bool VisibilityOctreeSceneManager::getOptionValues(const String & key, StringVector &refValueList)
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129 | {
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130 | return OctreeSceneManager::getOptionValues( key, refValueList );
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131 | }
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132 | //-----------------------------------------------------------------------
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133 | bool VisibilityOctreeSceneManager::getOptionKeys(StringVector & refKeys)
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134 | {
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135 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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136 | getOptionKeys ( refKeys ) || OctreeSceneManager::getOptionKeys(refKeys);
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137 | }
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138 | //-----------------------------------------------------------------------
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139 | void VisibilityOctreeSceneManager::setVisibilityManager(GtpVisibility::VisibilityManager *visManager)
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140 | {
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141 | mVisibilityManager = visManager;
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142 | }
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143 | //-----------------------------------------------------------------------
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144 | GtpVisibility::VisibilityManager *VisibilityOctreeSceneManager::getVisibilityManager()
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145 | {
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146 | return mVisibilityManager;
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147 | }
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148 | //-----------------------------------------------------------------------
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149 | void VisibilityOctreeSceneManager::WriteLog()
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150 | {
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151 | std::stringstream d;
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152 |
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153 | d << "Algorithm: " << mVisibilityManager->GetCullingManagerType() << ", "
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154 | << "Hierarchy nodes: " << mNumOctreeNodes << ", " << "Traversed nodes: " << mHierarchyInterface->GetNumTraversedNodes() << ", "
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155 | << "Rendered nodes: " << mHierarchyInterface->GetNumRenderedNodes() << ", "
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156 | << "Query culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumQueryCulledNodes() << ", "
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157 | << "Frustum culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumFrustumCulledNodes() << ", "
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158 | << "Queries issued: " << mVisibilityManager->GetCullingManager()->GetNumQueriesIssued() << "\n";
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159 |
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160 | LogManager::getSingleton().logMessage(d.str());
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161 | }
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162 | } // namespace Ogre |
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