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), mUseCulling(true)
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15 | {
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16 | mHierarchyInterface = new SceneNodeHierarchyInterface(this, mDestRenderSystem);
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17 | }
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18 | //-----------------------------------------------------------------------
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19 | VisibilitySceneManager::~VisibilitySceneManager()
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20 | {
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21 | delete mHierarchyInterface;
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22 | }
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23 | //-----------------------------------------------------------------------
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24 | void VisibilitySceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
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25 | {
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26 | // empty if hierarchical culling is used =>
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27 | // we interleave identification and rendering of objects
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28 | // in _renderVisibibleObjects
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29 | if(!mUseCulling)
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30 | {
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31 | SceneManager::_findVisibleObjects(cam, onlyShadowCasters);
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32 | }
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33 | }
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34 | //-----------------------------------------------------------------------
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35 | void VisibilitySceneManager::_renderVisibleObjects()
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36 | {
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37 | mHierarchyInterface->InitFrame(mSceneRoot, mCameraInProgress);
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38 | mVisibilityManager->GetCullingManager()->InitFrame();
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39 |
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40 | if(!mUseCulling)
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41 | {
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42 | SceneManager::_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 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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58 | _deleteRenderedQueueGroups();
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59 | #endif
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60 |
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61 | //-- render visible objects (i.e., all but overlay)
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62 | clearSpecialCaseRenderQueues();
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63 | addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
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64 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
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65 |
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66 | //-- the hierarchical culling algorithm
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67 | mVisibilityManager->ApplyVisibilityCulling();
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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 overlay
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74 | clearSpecialCaseRenderQueues();
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75 | SceneManager::_renderVisibleObjects();
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76 | }
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77 | //-----------------------------------------------------------------------
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78 | void VisibilitySceneManager::_updateSceneGraph(Camera* cam)
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79 | {
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80 | mVisibilityManager->GetCullingManager()->SetHierarchyInterface(mHierarchyInterface);
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81 | mHierarchyInterface->SetRenderSystem(mDestRenderSystem);
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82 |
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83 | SceneManager::_updateSceneGraph(cam);
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84 | }
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85 | //-----------------------------------------------------------------------
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86 | bool VisibilitySceneManager::setOption(const String & key, const void * val)
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87 | {
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88 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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89 | setOption(key, val) || SceneManager::setOption(key, val);
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90 | }
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91 | //-----------------------------------------------------------------------
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92 | bool VisibilitySceneManager::getOption(const String & key, void *val)
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93 | {
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94 | if (key == "NumHierarchyNodes")
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95 | {
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96 | * static_cast<unsigned int *>(val) = (unsigned int)mSceneNodes.size();
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97 | return true;
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98 | }
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99 |
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100 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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101 | getOption(key, val) && SceneManager::getOption(key, val);
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102 | }
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103 | //-----------------------------------------------------------------------
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104 | bool VisibilitySceneManager::getOptionValues(const String & key, StringVector &refValueList)
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105 | {
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106 | return SceneManager::getOptionValues(key, refValueList);
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107 | }
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108 | //-----------------------------------------------------------------------
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109 | bool VisibilitySceneManager::getOptionKeys(StringVector & refKeys)
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110 | {
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111 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
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112 | getOptionKeys(refKeys) || SceneManager::getOptionKeys(refKeys);
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113 | }
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114 | //-----------------------------------------------------------------------
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115 | void VisibilitySceneManager::setVisibilityManager(GtpVisibility::VisibilityManager *visManager)
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116 | {
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117 | mVisibilityManager = visManager;
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118 | }
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119 | //-----------------------------------------------------------------------
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120 | GtpVisibility::VisibilityManager *VisibilitySceneManager::getVisibilityManager( void )
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121 | {
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122 | return mVisibilityManager;
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123 | }
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124 |
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125 | //} // namespace GtpVisibility
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126 | } // namespace Ogre |
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