1 | #include <OgreMath.h>
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2 | #include <OgreIteratorWrappers.h>
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3 | #include <OgreRenderSystem.h>
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4 | #include <OgreCamera.h>
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5 | #include "OgreVisibilitySceneManager.h"
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6 | #include "OgreSceneNodeHierarchyInterface.h"
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7 | #include "OgreVisibilityOptionsManager.h"
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8 |
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9 |
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10 | namespace Ogre {
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11 |
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12 | //-----------------------------------------------------------------------
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13 | VisibilitySceneManager::VisibilitySceneManager(GtpVisibility::VisibilityManager *visManager)
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14 | :mVisibilityManager(visManager), mUseDepthPass(false), mShowVisualization(false)
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15 | {
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16 | mHierarchyInterface =
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17 | new SceneNodeHierarchyInterface(this, mDestRenderSystem);
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18 | }
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19 | //-----------------------------------------------------------------------
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20 | VisibilitySceneManager::~VisibilitySceneManager()
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21 | {
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22 | delete mHierarchyInterface;
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23 | }
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24 | //-----------------------------------------------------------------------
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25 | void VisibilitySceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
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26 | {
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27 | mHierarchyInterface->SetOnlyShadowCasters(onlyShadowCasters);
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28 | // does nothing if hierarchical culling is used =>
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29 | // we interleave identification and rendering of objects
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30 | // in _renderVisibibleObjects
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31 | if (!mUseDepthPass)
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32 | {
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33 | SceneManager::_findVisibleObjects(cam, onlyShadowCasters);
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34 | return;
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35 | }
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36 | }
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37 | //-----------------------------------------------------------------------
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38 | void VisibilitySceneManager::_renderVisibleObjects()
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39 | {
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40 | if (!mShowVisualization)
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41 | {
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42 | mHierarchyInterface->SetHierarchyRoot(mSceneRoot);
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43 | mHierarchyInterface->InitTraversal(mCameraInProgress);
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44 |
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45 | // reset culling manager stats
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46 | mVisibilityManager->GetCullingManager()->InitFrame(mVisualizeCulledNodes);
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47 | }
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48 |
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49 | // standard terrain scenemanager rendering without hierarchical culling
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50 | if (!mUseDepthPass || mShowVisualization)
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51 | {
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52 | SceneManager::_renderVisibleObjects();
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53 |
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54 | return;
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55 | }
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56 |
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57 | //-- hierarchical culling
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58 | // the objects of different layers (e.g., background, scene,
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59 | // overlay) must be identified and rendered one after another
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60 |
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61 | //-- render background
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62 | clearSpecialCaseRenderQueues();
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63 | addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
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64 | addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
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65 |
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66 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
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67 | SceneManager::_renderVisibleObjects();
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68 |
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69 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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70 | _deleteRenderedQueueGroups();
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71 | #endif
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72 |
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73 | //-- render visible objects (i.e., all but overlay)
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74 | clearSpecialCaseRenderQueues();
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75 | addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
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76 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
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77 |
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78 |
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79 | /**
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80 | * the hierarchical culling algorithm
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81 | **/
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82 | mVisibilityManager->ApplyVisibilityCulling();
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83 |
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84 |
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85 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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86 | _deleteRenderedQueueGroups();
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87 | #endif
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88 |
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89 | //-- render overlay
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90 | clearSpecialCaseRenderQueues();
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91 | SceneManager::_renderVisibleObjects();
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92 |
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93 | //WriteLog(); // write out stats
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94 | }
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95 | //-----------------------------------------------------------------------
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96 | void VisibilitySceneManager::_updateSceneGraph(Camera* cam)
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97 | {
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98 | mVisibilityManager->GetCullingManager()->SetHierarchyInterface(mHierarchyInterface);
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99 | mHierarchyInterface->SetRenderSystem(mDestRenderSystem);
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100 |
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101 | SceneManager::_updateSceneGraph(cam);
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102 | }
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103 | //-----------------------------------------------------------------------
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104 | bool VisibilitySceneManager::setOption(const String & key, const void * val)
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105 | {
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106 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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107 | setOption(key, val) || SceneManager::setOption(key, val);
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108 | }
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109 | //-----------------------------------------------------------------------
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110 | bool VisibilitySceneManager::getOption(const String & key, void *val)
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111 | {
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112 | if (key == "NumHierarchyNodes")
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113 | {
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114 | * static_cast<unsigned int *>(val) = (unsigned int)mSceneNodes.size();
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115 | return true;
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116 | }
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117 |
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118 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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119 | getOption(key, val) && SceneManager::getOption(key, val);
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120 | }
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121 | //-----------------------------------------------------------------------
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122 | bool VisibilitySceneManager::getOptionValues(const String & key, StringVector &refValueList)
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123 | {
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124 | return SceneManager::getOptionValues(key, refValueList);
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125 | }
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126 | //-----------------------------------------------------------------------
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127 | bool VisibilitySceneManager::getOptionKeys(StringVector & refKeys)
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128 | {
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129 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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130 | getOptionKeys(refKeys) || SceneManager::getOptionKeys(refKeys);
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131 | }
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132 | //-----------------------------------------------------------------------
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133 | void VisibilitySceneManager::setVisibilityManager(GtpVisibility::VisibilityManager *visManager)
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134 | {
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135 | mVisibilityManager = visManager;
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136 | }
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137 | //-----------------------------------------------------------------------
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138 | GtpVisibility::VisibilityManager *VisibilitySceneManager::getVisibilityManager()
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139 | {
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140 | return mVisibilityManager;
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141 | }
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142 |
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143 | } // namespace Ogre |
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