1 | #include "OgreOcclusionCullingSceneManager.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 | #include <OgreStringConverter.h>
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9 | #include <OgreEntity.h>
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10 | #include <OgreSubEntity.h>
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11 | #include <OgreMaterialManager.h>
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12 | #include <OgreIteratorWrappers.h>
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13 | #include <OgreHeightmapTerrainPageSource.h>
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14 | #include "VspBspTree.h"
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15 | #include "Containers.h"
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16 | #include "ViewCellsManager.h"
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17 | #include <OgreConfigFile.h>
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18 | #include "OgreTypeConverter.h"
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19 | #include "OgreMeshInstance.h"
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20 | #include "common.h"
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21 | #include "OgreBoundingBoxConverter.h"
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22 | #include <OgreManualObject.h>
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23 |
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24 |
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25 | namespace Ogre {
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26 |
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27 | //-----------------------------------------------------------------------
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28 | OcclusionCullingSceneManager::OcclusionCullingSceneManager(const String& name,
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29 | GtpVisibility::VisibilityManager *visManager):
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30 | TerrainSceneManager(name),
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31 | mVisibilityManager(visManager),
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32 | mShowVisualization(false),
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33 | mRenderNodesForViz(false),
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34 | mRenderNodesContentForViz(false),
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35 | mVisualizeCulledNodes(false),
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36 | mLeavePassesInQueue(0),
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37 | mDelayRenderTransparents(true),
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38 | mUseDepthPass(false),
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39 | mIsDepthPassPhase(false),
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40 | mUseItemBuffer(false),
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41 | mIsItemBufferPhase(false),
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42 | mCurrentEntityId(1),
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43 | mEnableDepthWrite(true),
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44 | mSkipTransparents(false),
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45 | mRenderTransparentsForItemBuffer(true),
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46 | mExecuteVertexProgramForAllPasses(false),
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47 | mIsHierarchicalCulling(false),
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48 | mViewCellsLoaded(false),
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49 | mUseViewCells(false),
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50 | mUseVisibilityFilter(false),
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51 | mCurrentViewCell(NULL),
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52 | mElementaryViewCell(NULL),
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53 | mDeleteQueueAfterRendering(true),
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54 | mNormalExecution(false)
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55 | {
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56 | Ogre::LogManager::getSingleton().logMessage("creating occlusion culling scene manager");
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57 |
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58 | mHierarchyInterface = new OctreeHierarchyInterface(this, mDestRenderSystem);
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59 |
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60 | if (0)
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61 | {
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62 | mDisplayNodes = true;
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63 | mShowBoundingBoxes = true;
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64 | mShowBoxes = true;
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65 | }
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66 |
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67 | // TODO: set maxdepth to reasonable value
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68 | mMaxDepth = 50;
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69 | }
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70 | //-----------------------------------------------------------------------
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71 | void OcclusionCullingSceneManager::InitDepthPass()
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72 | {
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73 | MaterialPtr depthMat = MaterialManager::getSingleton().getByName("Visibility/DepthPass");
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74 |
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75 | if (depthMat.isNull())
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76 | {
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77 | depthMat = MaterialManager::getSingleton().create(
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78 | "Visibility/DepthPass",
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79 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
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80 |
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81 | mDepthPass = depthMat->getTechnique(0)->getPass(0);
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82 | mDepthPass->setColourWriteEnabled(false);
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83 | mDepthPass->setDepthWriteEnabled(true);
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84 | mDepthPass->setLightingEnabled(false);
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85 | }
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86 | else
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87 | {
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88 | mDepthPass = depthMat->getTechnique(0)->getPass(0);
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89 | }
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90 | }
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91 | //-----------------------------------------------------------------------
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92 | OcclusionCullingSceneManager::~OcclusionCullingSceneManager()
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93 | {
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94 | OGRE_DELETE(mHierarchyInterface);
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95 | CLEAR_CONTAINER(mObjects);
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96 | OGRE_DELETE(mCurrentViewCell);
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97 | }
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98 | //-----------------------------------------------------------------------
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99 | void OcclusionCullingSceneManager::InitItemBufferPass()
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100 | {
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101 | MaterialPtr itemBufferMat = MaterialManager::getSingleton().
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102 | getByName("Visibility/ItemBufferPass");
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103 |
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104 | if (itemBufferMat.isNull())
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105 | {
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106 | // Init
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107 | itemBufferMat = MaterialManager::getSingleton().create("Visibility/ItemBufferPass",
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108 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
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109 |
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110 | mItemBufferPass = itemBufferMat->getTechnique(0)->getPass(0);
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111 | mItemBufferPass->setColourWriteEnabled(true);
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112 | mItemBufferPass->setDepthWriteEnabled(true);
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113 | mItemBufferPass->setLightingEnabled(true);
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114 | //mItemBufferPass->setLightingEnabled(false);
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115 | }
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116 | else
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117 | {
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118 | mItemBufferPass = itemBufferMat->getTechnique(0)->getPass(0);
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119 | }
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120 | //mItemBufferPass->setAmbient(1, 1, 0);
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121 | }
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122 | //-------------------------------------------------------------------------
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123 | #if 1
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124 | void OcclusionCullingSceneManager::setWorldGeometry( DataStreamPtr& stream, const String& typeName )
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125 | {
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126 | // Clear out any existing world resources (if not default)
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127 | if (ResourceGroupManager::getSingleton().getWorldResourceGroupName() !=
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128 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME)
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129 | {
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130 | ResourceGroupManager::getSingleton().clearResourceGroup(
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131 | ResourceGroupManager::getSingleton().getWorldResourceGroupName());
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132 | }
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133 | destroyLevelIndexes();
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134 | mTerrainPages.clear();
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135 | // Load the configuration
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136 | loadConfig(stream);
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137 | initLevelIndexes();
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138 |
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139 | // Resize the octree, allow for 1 page for now
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140 | float max_x = mOptions.scale.x * mOptions.pageSize;
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141 | float max_y = mOptions.scale.y;
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142 | float max_z = mOptions.scale.z * mOptions.pageSize;
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143 |
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144 | float maxAxis = std::max(max_x, max_y);
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145 | maxAxis = std::max(maxAxis, max_z);
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146 | resize( AxisAlignedBox( 0, 0, 0, maxAxis, maxAxis, maxAxis ) );
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147 |
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148 | setupTerrainMaterial();
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149 |
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150 | setupTerrainPages();
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151 |
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152 | }
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153 | #endif
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154 | //-----------------------------------------------------------------------
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155 | void OcclusionCullingSceneManager::PrepareVisualization(Camera *cam)
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156 | {
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157 | // add player camera for visualization purpose
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158 | try
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159 | {
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160 | Camera *c;
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161 | if ((c = getCamera("PlayerCam")) != NULL)
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162 | {
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163 | getRenderQueue()->addRenderable(c);
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164 | }
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165 | }
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166 | catch (...)
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167 | {
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168 | // ignore
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169 | }
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170 | // add bounding boxes of rendered objects
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171 | if (0)
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172 | for (BoxList::iterator it = mBoxes.begin(); it != mBoxes.end(); ++it)
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173 | {
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174 | getRenderQueue()->addRenderable(*it);
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175 | }
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176 |
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177 | MovableObjectsMap::const_iterator mit, mit_end = mViewCellsGeometry.end();
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178 | /*
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179 | for (mit = mViewCellsGeometry.begin(); mit != mit_end; ++ mit)
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180 | {
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181 | (*mit).second->_updateRenderQueue(getRenderQueue());
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182 | }
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183 | */
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184 |
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185 | if (mRenderNodesForViz || mRenderNodesContentForViz)
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186 | {
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187 | // HACK: change node material so it is better suited for visualization
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188 | MaterialPtr nodeMat = MaterialManager::getSingleton().getByName("Core/NodeMaterial");
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189 | nodeMat->setAmbient(1, 1, 0);
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190 | nodeMat->setLightingEnabled(true);
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191 | nodeMat->getTechnique(0)->getPass(0)->removeAllTextureUnitStates();
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192 |
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193 | for (NodeList::iterator it = mVisible.begin(); it != mVisible.end(); ++it)
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194 | {
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195 | if (mRenderNodesForViz)
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196 | {
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197 | // render the leaf nodes
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198 | if ((*it)->numAttachedObjects() &&
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199 | !(*it)->numChildren() &&
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200 | ((*it)->getAttachedObject(0)->getMovableType() == "Entity") &&
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201 | (*it)->getAttachedObject(0)->isVisible())
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202 | {
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203 | getRenderQueue()->addRenderable((*it));
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204 | }
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205 |
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206 | // addbounding boxes instead of node itself
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207 | //(*it)->_addBoundingBoxToQueue(getRenderQueue());
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208 | }
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209 |
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210 | // add renderables itself
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211 | if (mRenderNodesContentForViz)
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212 | {
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213 | (*it)->_addToRenderQueue(cam, getRenderQueue(), false);
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214 | }
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215 | }
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216 | }
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217 | }
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218 | //-----------------------------------------------------------------------
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219 | const Pass *OcclusionCullingSceneManager::_setPass(const Pass* pass, bool evenIfSuppressed)
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220 | {
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221 | if (mNormalExecution)
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222 | {
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223 | return SceneManager::_setPass(pass);
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224 | }
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225 |
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226 | // TODO: setting vertex program is not efficient
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227 | //Pass *usedPass = ((mIsDepthPassPhase && !pass->hasVertexProgram()) ? mDepthPass : pass);
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228 |
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229 | // set depth fill pass if we currently do not make an aabb occlusion query
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230 | const bool useDepthPass =
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231 | (mIsDepthPassPhase && !mHierarchyInterface->IsBoundingBoxQuery());
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232 |
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233 | const IlluminationRenderStage savedStage = mIlluminationStage;
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234 |
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235 | // set illumination stage to NONE so no shadow material is used
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236 | // for depth pass or for occlusion query
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237 | if (mIsDepthPassPhase || mHierarchyInterface->IsBoundingBoxQuery())
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238 | {
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239 | mIlluminationStage = IRS_NONE;
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240 | }
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241 |
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242 | // --- set vertex program of current pass in order to set correct depth
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243 | if (mExecuteVertexProgramForAllPasses &&
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244 | mIsDepthPassPhase &&
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245 | pass->hasVertexProgram())
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246 | {
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247 | // add vertex program of current pass to depth pass
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248 | mDepthPass->setVertexProgram(pass->getVertexProgramName());
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249 |
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250 | if (mDepthPass->hasVertexProgram())
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251 | {
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252 | const GpuProgramPtr& prg = mDepthPass->getVertexProgram();
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253 | // Load this program if not done already
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254 | if (!prg->isLoaded())
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255 | prg->load();
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256 | // Copy params
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257 | mDepthPass->setVertexProgramParameters(pass->getVertexProgramParameters());
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258 | }
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259 | }
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260 | else if (mDepthPass->hasVertexProgram()) // reset vertex program
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261 | {
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262 | mDepthPass->setVertexProgram("");
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263 | }
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264 |
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265 | const Pass *usedPass = useDepthPass ? mDepthPass : pass;
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266 |
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267 | // save old depth write: needed for item buffer
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268 | const bool IsDepthWrite = usedPass->getDepthWriteEnabled();
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269 |
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270 | // global option which enables / disables depth writes
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271 | if (!mEnableDepthWrite)
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272 | {
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273 | //usedPass->setDepthWriteEnabled(false);
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274 | }
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275 | //else if (mIsItemBufferPass) {usedPass = mItemBufferPass;}
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276 |
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277 |
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278 | //-- set actual pass here
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279 |
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280 | const Pass *result = SceneManager::_setPass(usedPass);
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281 |
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282 |
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283 | // reset depth write
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284 | if (!mEnableDepthWrite)
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285 | {
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286 | //usedPass->setDepthWriteEnabled(IsDepthWrite);
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287 | }
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288 |
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289 | // reset illumination stage
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290 | mIlluminationStage = savedStage;
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291 |
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292 | return result;
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293 | }
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294 | //-----------------------------------------------------------------------
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295 | void OcclusionCullingSceneManager::_findVisibleObjects(Camera* cam,
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296 | bool onlyShadowCasters)
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297 | {
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298 | if (mNormalExecution)
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299 | {
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300 | OctreeSceneManager::_findVisibleObjects(cam, onlyShadowCasters);
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301 | return;
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302 | }
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303 |
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304 | if (mShowVisualization)
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305 | {
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306 | //////////////
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307 | //-- show visible scene nodes and octree bounding boxes from last frame
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308 |
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309 | PrepareVisualization(cam);
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310 | }
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311 | else
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312 | {
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313 | // for hierarchical culling, we interleave identification
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314 | // and rendering of objects in _renderVisibibleObjects
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315 |
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316 | // for the shadow pass we use only standard rendering
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317 | // because of low occlusion
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318 | if (mShadowTechnique == SHADOWTYPE_TEXTURE_MODULATIVE &&
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319 | mIlluminationStage == IRS_RENDER_TO_TEXTURE)
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320 | {
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321 | OctreeSceneManager::_findVisibleObjects(cam, onlyShadowCasters);
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322 | }
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323 |
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324 | // only shadow casters will be rendered in shadow texture pass
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325 | if (0) mHierarchyInterface->SetOnlyShadowCasters(onlyShadowCasters);
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326 |
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327 | ///////////
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328 | //-- apply view cell pvs
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329 | UpdatePvs(cam);
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330 | }
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331 |
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332 | // lists only used for visualization
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333 | mVisible.clear();
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334 | mBoxes.clear();
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335 | }
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336 | //-----------------------------------------------------------------------
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337 | void OcclusionCullingSceneManager::_renderVisibleObjects()
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338 | {
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339 | if (mNormalExecution)
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340 | {
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341 | // the standard octree rendering mode
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342 | OctreeSceneManager::_renderVisibleObjects();
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343 | return;
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344 | }
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345 |
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346 | InitDepthPass(); // create material for depth pass
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347 | InitItemBufferPass(); // create material for item buffer pass
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348 |
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349 | // save ambient light to reset later
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350 | ColourValue savedAmbient = mAmbientLight;
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351 |
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352 | ////////////////////
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353 | //-- apply standard rendering for some modes
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354 | //-- (e.g., the visualization mode, the shadow pass)
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355 |
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356 | if (mShowVisualization ||
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357 | (mShadowTechnique == SHADOWTYPE_TEXTURE_MODULATIVE &&
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358 | mIlluminationStage == IRS_RENDER_TO_TEXTURE))
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359 | {
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360 | IlluminationRenderStage savedStage = mIlluminationStage;
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361 |
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362 | if (mShowVisualization)
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363 | {
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364 | // disable illumination stage to prevent rendering shadows
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365 | mIlluminationStage = IRS_NONE;
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366 | }
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367 |
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368 | // standard rendering for shadow maps because of performance
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369 | TerrainSceneManager::_renderVisibleObjects();
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370 |
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371 | mIlluminationStage = savedStage;
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372 | }
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373 | else //-- the hierarchical culling algorithm
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374 | {
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375 | // note matt: this is also called in TerrainSceneManager: really necessary?
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376 | mDestRenderSystem -> setLightingEnabled(false);
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377 |
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378 | if (mUseItemBuffer)
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379 | {
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380 | // don't render backgrounds for item buffer
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381 | clearSpecialCaseRenderQueues();
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382 | getRenderQueue()->clear();
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383 | }
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384 |
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385 | ////////////////////
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386 | //-- hierarchical culling
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387 |
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388 | // the objects of different layers (e.g., background, scene,
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389 | // overlay) must be identified and rendered one after another
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390 |
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391 | // first render all early skies
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392 | clearSpecialCaseRenderQueues();
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393 | addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
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394 | addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
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395 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
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396 |
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397 | TerrainSceneManager::_renderVisibleObjects();
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398 |
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399 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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400 | // delete previously rendered content
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401 | _deleteRenderedQueueGroups();
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402 | #endif
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403 |
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404 | ///////////////////
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405 | //-- prepare queue for visible objects (i.e., all but overlay and skies late)
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406 |
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407 | clearSpecialCaseRenderQueues();
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408 | addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_LATE);
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409 | addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
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410 |
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411 | // exclude this queues from hierarchical rendering
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412 | setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);
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413 |
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414 | // set all necessary parameters for
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415 | // hierarchical visibility culling and rendering
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416 | InitVisibilityCulling(mCameraInProgress);
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417 |
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418 |
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419 | /**
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420 | * the hierarchical culling algorithm
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421 | * for depth pass: we just find objects and update depth buffer
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422 | * for "delayed" rendering: we render some passes afterwards
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423 | * e.g., transparents, because they need front-to-back sorting
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424 | **/
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425 |
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426 | mVisibilityManager->ApplyVisibilityCulling();
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427 |
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428 | // delete remaining renderables from queue:
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429 | // all which are not in mLeavePassesInQueue)
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430 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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431 | _deleteRenderedQueueGroups(mLeavePassesInQueue);
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432 | #endif
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433 |
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434 | /////////////
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435 | //-- reset parameters needed for special rendering
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436 |
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437 | mIsDepthPassPhase = false;
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438 | mIsItemBufferPhase = false;
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439 | mSkipTransparents = false;
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440 | mIsHierarchicalCulling = false;
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441 |
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442 | mLeavePassesInQueue = 0;
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443 |
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444 | if (mUseDepthPass) // the shaded geometry is rendered in a second pass
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445 | {
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446 | // add visible nodes found by the visibility culling algorithm
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447 | NodeList::const_iterator it, it_end = mVisible.end();
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448 |
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449 | //getRenderQueue()->clear();
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450 | for (it = mVisible.begin(); it != it_end; ++ it)
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451 | {
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452 | (*it)->_addToRenderQueue(mCameraInProgress, getRenderQueue(), false);
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453 | }
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454 | }
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455 |
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456 | /////////////
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457 | //-- now we can render all remaining queue objects
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458 | //-- used for depth pass, transparents, overlay
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459 | clearSpecialCaseRenderQueues();
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460 |
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461 | TerrainSceneManager::_renderVisibleObjects();
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462 | } // end hierarchical culling
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463 |
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464 | // HACK: set the new render level index, important to avoid cracks
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465 | // in terrain caused by LOD
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466 | TerrainRenderable::NextRenderLevelIndex();
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467 |
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468 | // reset ambient light
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469 | setAmbientLight(savedAmbient);
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470 |
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471 | // almost same effect as below
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472 | getRenderQueue()->clear(mDeleteQueueAfterRendering);
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473 |
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474 | if (0)
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475 | {
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476 | if (!mDeleteQueueAfterRendering)
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477 | getRenderQueue()->clear(true); // finally clear render queue
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478 | else
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479 | OGRE_DELETE(mRenderQueue); // HACK: should rather only be cleared ...
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480 | }
|
---|
481 |
|
---|
482 | if (0) WriteLog(); // write out stats
|
---|
483 | }
|
---|
484 |
|
---|
485 | //-----------------------------------------------------------------------
|
---|
486 | void OcclusionCullingSceneManager::_updateSceneGraph(Camera* cam)
|
---|
487 | {
|
---|
488 | if (mNormalExecution)
|
---|
489 | {
|
---|
490 | OctreeSceneManager::_updateSceneGraph(cam);
|
---|
491 | return;
|
---|
492 | }
|
---|
493 |
|
---|
494 | mVisibilityManager->GetCullingManager()->SetHierarchyInterface(mHierarchyInterface);
|
---|
495 | mHierarchyInterface->SetRenderSystem(mDestRenderSystem);
|
---|
496 |
|
---|
497 | TerrainSceneManager::_updateSceneGraph(cam);
|
---|
498 | }
|
---|
499 | //-----------------------------------------------------------------------
|
---|
500 | bool OcclusionCullingSceneManager::setOption(const String & key, const void * val)
|
---|
501 | {
|
---|
502 | if (key == "UseDepthPass")
|
---|
503 | {
|
---|
504 | mUseDepthPass = (*static_cast<const bool *>(val));
|
---|
505 | return true;
|
---|
506 | }
|
---|
507 | if (key == "PrepareVisualization")
|
---|
508 | {
|
---|
509 | mShowVisualization = (*static_cast<const bool *>(val));
|
---|
510 | return true;
|
---|
511 | }
|
---|
512 | if (key == "RenderNodesForViz")
|
---|
513 | {
|
---|
514 | mRenderNodesForViz = (*static_cast<const bool *>(val));
|
---|
515 | return true;
|
---|
516 | }
|
---|
517 | if (key == "RenderNodesContentForViz")
|
---|
518 | {
|
---|
519 | mRenderNodesContentForViz = (*static_cast<const bool *>(val));
|
---|
520 | return true;
|
---|
521 | }
|
---|
522 | if (key == "SkyBoxEnabled")
|
---|
523 | {
|
---|
524 | mSkyBoxEnabled = (*static_cast<const bool *>(val));
|
---|
525 | return true;
|
---|
526 | }
|
---|
527 | if (key == "SkyPlaneEnabled")
|
---|
528 | {
|
---|
529 | mSkyPlaneEnabled = (*static_cast<const bool *>(val));
|
---|
530 | return true;
|
---|
531 | }
|
---|
532 | if (key == "SkyDomeEnabled")
|
---|
533 | {
|
---|
534 | mSkyDomeEnabled = (*static_cast<const bool *>(val));
|
---|
535 | return true;
|
---|
536 | }
|
---|
537 | if (key == "VisualizeCulledNodes")
|
---|
538 | {
|
---|
539 | mVisualizeCulledNodes = (*static_cast<const bool *>(val));
|
---|
540 | return true;
|
---|
541 | }
|
---|
542 | if (key == "DelayRenderTransparents")
|
---|
543 | {
|
---|
544 | mDelayRenderTransparents = (*static_cast<const bool *>(val));
|
---|
545 | return true;
|
---|
546 | }
|
---|
547 | if (key == "DepthWrite")
|
---|
548 | {
|
---|
549 | mEnableDepthWrite = (*static_cast<const bool *>(val));
|
---|
550 | return true;
|
---|
551 | }
|
---|
552 | if (key == "UseItemBuffer")
|
---|
553 | {
|
---|
554 | mUseItemBuffer = (*static_cast<const bool *>(val));
|
---|
555 | return true;
|
---|
556 | }
|
---|
557 | if (key == "ExecuteVertexProgramForAllPasses")
|
---|
558 | {
|
---|
559 | mExecuteVertexProgramForAllPasses = (*static_cast<const bool *>(val));
|
---|
560 | return true;
|
---|
561 | }
|
---|
562 | if (key == "RenderTransparentsForItemBuffer")
|
---|
563 | {
|
---|
564 | mRenderTransparentsForItemBuffer = (*static_cast<const bool *>(val));
|
---|
565 | return true;
|
---|
566 | }
|
---|
567 | else if (key == "DeleteRenderQueue")
|
---|
568 | {
|
---|
569 | mDeleteQueueAfterRendering = (*static_cast<const bool *>(val));
|
---|
570 | return true;
|
---|
571 | }
|
---|
572 | if (key == "NodeVizScale")
|
---|
573 | {
|
---|
574 | OctreeNode::setVizScale(*static_cast<const float *>(val));
|
---|
575 | return true;
|
---|
576 | }
|
---|
577 | if (key == "LoadViewCells")
|
---|
578 | {
|
---|
579 | if (!mViewCellsLoaded)
|
---|
580 | {
|
---|
581 | String filename(static_cast<const char *>(val));
|
---|
582 | mViewCellsLoaded = LoadViewCells(filename);
|
---|
583 | }
|
---|
584 |
|
---|
585 | return mViewCellsLoaded;
|
---|
586 | }
|
---|
587 | if (key == "UseViewCells")
|
---|
588 | {
|
---|
589 | if (mViewCellsLoaded)
|
---|
590 | {
|
---|
591 | mUseViewCells = *static_cast<const bool *>(val);
|
---|
592 |
|
---|
593 | // reset view cell
|
---|
594 | OGRE_DELETE(mCurrentViewCell);
|
---|
595 |
|
---|
596 | if (mUseViewCells)
|
---|
597 | {
|
---|
598 | mCurrentViewCell = mViewCellsManager->GenerateViewCell();
|
---|
599 | }
|
---|
600 |
|
---|
601 | mElementaryViewCell = NULL;
|
---|
602 |
|
---|
603 | // if we use view cells, all objects are set to false initially
|
---|
604 | SetObjectsVisible(!mUseViewCells);
|
---|
605 | }
|
---|
606 |
|
---|
607 | return true;
|
---|
608 | }
|
---|
609 | if (key == "NormalExecution")
|
---|
610 | {
|
---|
611 | mNormalExecution = *static_cast<const bool *>(val);
|
---|
612 | return true;
|
---|
613 | }
|
---|
614 | if (key == "UseVisibilityFilter")
|
---|
615 | {
|
---|
616 | mUseVisibilityFilter = *static_cast<const bool *>(val);
|
---|
617 | // set null =>recomputation of the pvs
|
---|
618 | mElementaryViewCell = NULL;
|
---|
619 | return true;
|
---|
620 | }
|
---|
621 |
|
---|
622 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
|
---|
623 | setOption(key, val) || TerrainSceneManager::setOption(key, val);
|
---|
624 | }
|
---|
625 | //-----------------------------------------------------------------------
|
---|
626 | bool OcclusionCullingSceneManager::getOption(const String & key, void *val)
|
---|
627 | {
|
---|
628 | if (key == "NumHierarchyNodes")
|
---|
629 | {
|
---|
630 | * static_cast<unsigned int *>(val) = (unsigned int)mNumOctants;
|
---|
631 | return true;
|
---|
632 | }
|
---|
633 | if (key == "VisibilityManager")
|
---|
634 | {
|
---|
635 | * static_cast<GtpVisibility::VisibilityManager **>(val) =
|
---|
636 | (GtpVisibility::VisibilityManager *)mVisibilityManager;
|
---|
637 | return true;
|
---|
638 | }
|
---|
639 | if (key == "HierarchInterface")
|
---|
640 | {
|
---|
641 | * static_cast<GtpVisibility::HierarchyInterface **>(val) =
|
---|
642 | (GtpVisibility::HierarchyInterface *)mHierarchyInterface;
|
---|
643 | return true;
|
---|
644 | }
|
---|
645 |
|
---|
646 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
|
---|
647 | getOption(key, val) && TerrainSceneManager::getOption(key, val);
|
---|
648 | }
|
---|
649 | //-----------------------------------------------------------------------
|
---|
650 | bool OcclusionCullingSceneManager::getOptionValues(const String & key,
|
---|
651 | StringVector &refValueList)
|
---|
652 | {
|
---|
653 | return TerrainSceneManager::getOptionValues( key, refValueList);
|
---|
654 | }
|
---|
655 | //-----------------------------------------------------------------------
|
---|
656 | bool OcclusionCullingSceneManager::getOptionKeys(StringVector & refKeys)
|
---|
657 | {
|
---|
658 | return VisibilityOptionsManager(mVisibilityManager, mHierarchyInterface).
|
---|
659 | getOptionKeys(refKeys) || TerrainSceneManager::getOptionKeys(refKeys);
|
---|
660 | }
|
---|
661 | //-----------------------------------------------------------------------
|
---|
662 | void OcclusionCullingSceneManager::setVisibilityManager(GtpVisibility::
|
---|
663 | VisibilityManager *visManager)
|
---|
664 | {
|
---|
665 | mVisibilityManager = visManager;
|
---|
666 | }
|
---|
667 | //-----------------------------------------------------------------------
|
---|
668 | GtpVisibility::VisibilityManager *OcclusionCullingSceneManager::getVisibilityManager( void )
|
---|
669 | {
|
---|
670 | return mVisibilityManager;
|
---|
671 | }
|
---|
672 | //-----------------------------------------------------------------------
|
---|
673 | void OcclusionCullingSceneManager::WriteLog()
|
---|
674 | {
|
---|
675 | std::stringstream d;
|
---|
676 |
|
---|
677 | d << "Depth pass: " << StringConverter::toString(mUseDepthPass) << ", "
|
---|
678 | << "Delay transparents: " << StringConverter::toString(mDelayRenderTransparents) << ", "
|
---|
679 | << "Use optimization: " << StringConverter::toString(mHierarchyInterface->GetTestGeometryForVisibleLeaves()) << ", "
|
---|
680 | << "Algorithm type: " << mVisibilityManager->GetCullingManagerType() << ", "
|
---|
681 | << "Hierarchy nodes: " << mNumOctants << ", "
|
---|
682 | << "Traversed nodes: " << mHierarchyInterface->GetNumTraversedNodes() << ", "
|
---|
683 | << "Rendered nodes: " << mHierarchyInterface->GetNumRenderedNodes() << ", "
|
---|
684 | << "Query culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumQueryCulledNodes() << ", "
|
---|
685 | << "Frustum culled nodes: " << mVisibilityManager->GetCullingManager()->GetNumFrustumCulledNodes() << ", "
|
---|
686 | << "Queries issued: " << mVisibilityManager->GetCullingManager()->GetNumQueriesIssued() << ", "
|
---|
687 | << "Found objects: " << (int)mVisible.size() << "\n";
|
---|
688 |
|
---|
689 | LogManager::getSingleton().logMessage(d.str());
|
---|
690 | }
|
---|
691 | //-----------------------------------------------------------------------
|
---|
692 | void OcclusionCullingSceneManager::renderBasicQueueGroupObjects(RenderQueueGroup* pGroup,
|
---|
693 | QueuedRenderableCollection::OrganisationMode om)
|
---|
694 | {
|
---|
695 | // Basic render loop
|
---|
696 | // Iterate through priorities
|
---|
697 | RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
|
---|
698 |
|
---|
699 | while (groupIt.hasMoreElements())
|
---|
700 | {
|
---|
701 | RenderPriorityGroup* pPriorityGrp = groupIt.getNext();
|
---|
702 |
|
---|
703 | // Sort the queue first
|
---|
704 | pPriorityGrp->sort(mCameraInProgress);
|
---|
705 |
|
---|
706 | // Do solids
|
---|
707 | renderObjects(pPriorityGrp->getSolidsBasic(), om, true);
|
---|
708 |
|
---|
709 | // for correct rendering, transparents must be rendered
|
---|
710 | // after hierarchical culling => don't render them now
|
---|
711 |
|
---|
712 | if (mNormalExecution || !mSkipTransparents)
|
---|
713 | {
|
---|
714 | // Do transparents (always descending)
|
---|
715 | renderObjects(pPriorityGrp->getTransparents(),
|
---|
716 | QueuedRenderableCollection::OM_SORT_DESCENDING, true);
|
---|
717 | }
|
---|
718 |
|
---|
719 |
|
---|
720 | } // for each priority
|
---|
721 | }
|
---|
722 |
|
---|
723 | //-----------------------------------------------------------------------
|
---|
724 | bool OcclusionCullingSceneManager::validatePassForRendering(Pass* pass)
|
---|
725 | {
|
---|
726 | if (mNormalExecution)
|
---|
727 | {
|
---|
728 | return SceneManager::validatePassForRendering(pass);
|
---|
729 | }
|
---|
730 |
|
---|
731 | // skip all but first pass if we are doing the depth pass
|
---|
732 | if ((mIsDepthPassPhase || mIsItemBufferPhase) && (pass->getIndex() > 0))
|
---|
733 | {
|
---|
734 | return false;
|
---|
735 | }
|
---|
736 | // all but first pass
|
---|
737 | /*else if ((!mIsDepthPassPhase || mIsItemBufferPhase) && (pass->getIndex() != 0))
|
---|
738 | {
|
---|
739 | return false;
|
---|
740 | }*/
|
---|
741 |
|
---|
742 | return SceneManager::validatePassForRendering(pass);
|
---|
743 | }
|
---|
744 | //-----------------------------------------------------------------------
|
---|
745 | void OcclusionCullingSceneManager::_renderQueueGroupObjects(RenderQueueGroup* pGroup,
|
---|
746 | QueuedRenderableCollection::OrganisationMode om)
|
---|
747 | {
|
---|
748 | if (mNormalExecution || !mIsItemBufferPhase)
|
---|
749 | {
|
---|
750 | TerrainSceneManager::_renderQueueGroupObjects(pGroup, om);
|
---|
751 | return;
|
---|
752 | }
|
---|
753 | #ifdef ITEM_BUFFER
|
---|
754 | //-- item buffer
|
---|
755 | //-- item buffer: render objects using false colors
|
---|
756 |
|
---|
757 | // Iterate through priorities
|
---|
758 | RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
|
---|
759 |
|
---|
760 | while (groupIt.hasMoreElements())
|
---|
761 | {
|
---|
762 | RenderItemBuffer(groupIt.getNext());
|
---|
763 | }
|
---|
764 | #endif // ITEM_BUFFER
|
---|
765 | }
|
---|
766 | #ifdef ITEM_BUFFER
|
---|
767 | //-----------------------------------------------------------------------
|
---|
768 | void OcclusionCullingSceneManager::RenderItemBuffer(RenderPriorityGroup* pGroup)
|
---|
769 | {
|
---|
770 | // Do solids
|
---|
771 | QueuedRenderableCollection solidObjs = pGroup->getSolidsBasic();//msz
|
---|
772 |
|
---|
773 | // ----- SOLIDS LOOP -----
|
---|
774 | RenderPriorityGroup::SolidRenderablePassMap::const_iterator ipass, ipassend;
|
---|
775 | ipassend = solidObjs.end();
|
---|
776 |
|
---|
777 | for (ipass = solidObjs.begin(); ipass != ipassend; ++ipass)
|
---|
778 | {
|
---|
779 | // Fast bypass if this group is now empty
|
---|
780 | if (ipass->second->empty())
|
---|
781 | continue;
|
---|
782 |
|
---|
783 | // Render only first pass of renderable as false color
|
---|
784 | if (ipass->first->getIndex() > 0)
|
---|
785 | continue;
|
---|
786 |
|
---|
787 | RenderPriorityGroup::RenderableList* rendList = ipass->second;
|
---|
788 |
|
---|
789 | RenderPriorityGroup::RenderableList::const_iterator irend, irendend;
|
---|
790 | irendend = rendList->end();
|
---|
791 |
|
---|
792 | for (irend = rendList->begin(); irend != irendend; ++irend)
|
---|
793 | {
|
---|
794 | if (0)
|
---|
795 | {
|
---|
796 | std::stringstream d; d << "itembuffer, pass name: " <<
|
---|
797 | ipass->first->getParent()->getParent()->getName();
|
---|
798 |
|
---|
799 | LogManager::getSingleton().logMessage(d.str());
|
---|
800 | }
|
---|
801 |
|
---|
802 | RenderSingleObjectForItemBuffer(*irend, ipass->first);
|
---|
803 | }
|
---|
804 | }
|
---|
805 |
|
---|
806 | //-- TRANSPARENT LOOP: must be handled differently from solids
|
---|
807 |
|
---|
808 | // transparents are treated either as solids or completely discarded
|
---|
809 | if (mRenderTransparentsForItemBuffer)
|
---|
810 | {
|
---|
811 | QueuedRenderableCollection transpObjs = pGroup->getTransparents(); //msz
|
---|
812 | RenderPriorityGroup::TransparentRenderablePassList::const_iterator
|
---|
813 | itrans, itransend;
|
---|
814 |
|
---|
815 | itransend = transpObjs.end();
|
---|
816 | for (itrans = transpObjs.begin(); itrans != itransend; ++itrans)
|
---|
817 | {
|
---|
818 | // like for solids, render only first pass
|
---|
819 | if (itrans->pass->getIndex() == 0)
|
---|
820 | {
|
---|
821 | RenderSingleObjectForItemBuffer(itrans->renderable, itrans->pass);
|
---|
822 | }
|
---|
823 | }
|
---|
824 | }
|
---|
825 | }
|
---|
826 | //-----------------------------------------------------------------------
|
---|
827 | void OcclusionCullingSceneManager::RenderSingleObjectForItemBuffer(Renderable *rend, Pass *pass)
|
---|
828 | {
|
---|
829 | static LightList nullLightList;
|
---|
830 |
|
---|
831 | int col[4];
|
---|
832 |
|
---|
833 | // -- create color code out of object id
|
---|
834 | col[0] = (rend->getId() >> 16) & 255;
|
---|
835 | col[1] = (rend->getId() >> 8) & 255;
|
---|
836 | col[2] = rend->getId() & 255;
|
---|
837 | // col[3] = 255;
|
---|
838 |
|
---|
839 | //mDestRenderSystem->setColour(col[0], col[1], col[2], col[3]);
|
---|
840 |
|
---|
841 | mItemBufferPass->setAmbient(ColourValue(col[0] / 255.0f,
|
---|
842 | col[1] / 255.0f,
|
---|
843 | col[2] / 255.0f, 1));
|
---|
844 |
|
---|
845 | // set vertex program of current pass
|
---|
846 | if (mExecuteVertexProgramForAllPasses && pass->hasVertexProgram())
|
---|
847 | {
|
---|
848 | mItemBufferPass->setVertexProgram(pass->getVertexProgramName());
|
---|
849 |
|
---|
850 | if (mItemBufferPass->hasVertexProgram())
|
---|
851 | {
|
---|
852 | const GpuProgramPtr& prg = mItemBufferPass->getVertexProgram();
|
---|
853 | // Load this program if not done already
|
---|
854 | if (!prg->isLoaded())
|
---|
855 | prg->load();
|
---|
856 | // Copy params
|
---|
857 | mItemBufferPass->setVertexProgramParameters(pass->getVertexProgramParameters());
|
---|
858 | }
|
---|
859 | }
|
---|
860 | else if (mItemBufferPass->hasVertexProgram())
|
---|
861 | {
|
---|
862 | mItemBufferPass->setVertexProgram("");
|
---|
863 | }
|
---|
864 |
|
---|
865 | const Pass *usedPass = _setPass(mItemBufferPass);
|
---|
866 |
|
---|
867 |
|
---|
868 | // render a single object, this will set up auto params if required
|
---|
869 | renderSingleObject(rend, usedPass, false, &nullLightList);
|
---|
870 | }
|
---|
871 | #endif // ITEM_BUFFER
|
---|
872 | //-----------------------------------------------------------------------
|
---|
873 | GtpVisibility::VisibilityManager *OcclusionCullingSceneManager::GetVisibilityManager()
|
---|
874 | {
|
---|
875 | return mVisibilityManager;
|
---|
876 | }
|
---|
877 | //-----------------------------------------------------------------------
|
---|
878 | void OcclusionCullingSceneManager::InitVisibilityCulling(Camera *cam)
|
---|
879 | {
|
---|
880 | // reset culling manager stats
|
---|
881 | mVisibilityManager->GetCullingManager()->InitFrame(mVisualizeCulledNodes);
|
---|
882 |
|
---|
883 | // set depth pass flag before rendering
|
---|
884 | mIsDepthPassPhase = mUseDepthPass;
|
---|
885 |
|
---|
886 | mIsHierarchicalCulling = true; // during hierarchical culling
|
---|
887 |
|
---|
888 | // item buffer needs full ambient lighting to use item colors as unique id
|
---|
889 | if (mUseItemBuffer)
|
---|
890 | {
|
---|
891 | mIsItemBufferPhase = true;
|
---|
892 | setAmbientLight(ColourValue(1,1,1,1));
|
---|
893 | }
|
---|
894 |
|
---|
895 |
|
---|
896 | // set passes which are stored in render queue
|
---|
897 | // for rendering AFTER hierarchical culling, i.e., passes which need
|
---|
898 | // a special rendering order
|
---|
899 |
|
---|
900 | mLeavePassesInQueue = 0;
|
---|
901 |
|
---|
902 | // if we have the depth pass or use an item buffer, no passes are left in the queue
|
---|
903 | if (1 && !mUseDepthPass && !mUseItemBuffer)
|
---|
904 | {
|
---|
905 | if (mShadowTechnique == SHADOWTYPE_STENCIL_ADDITIVE)
|
---|
906 | {
|
---|
907 | // TODO: remove this pass because it should be processed during hierarchical culling
|
---|
908 | //mLeavePassesInQueue |= RenderPriorityGroup::SOLID_PASSES_NOSHADOW;
|
---|
909 |
|
---|
910 | mLeavePassesInQueue |= RenderPriorityGroup::SOLID_PASSES_DECAL;
|
---|
911 | mLeavePassesInQueue |= RenderPriorityGroup::SOLID_PASSES_DIFFUSE_SPECULAR;
|
---|
912 | mLeavePassesInQueue |= RenderPriorityGroup::TRANSPARENT_PASSES;
|
---|
913 |
|
---|
914 | // just render ambient passes
|
---|
915 | /*** msz: no more IRS_AMBIENT, see OgreSceneManager.h ***/
|
---|
916 | // mIlluminationStage = IRS_AMBIENT;
|
---|
917 | //getRenderQueue()->setSplitPassesByLightingType(true);
|
---|
918 | }
|
---|
919 |
|
---|
920 | if (mShadowTechnique == SHADOWTYPE_STENCIL_MODULATIVE)
|
---|
921 | {
|
---|
922 | mLeavePassesInQueue |= RenderPriorityGroup::SOLID_PASSES_NOSHADOW;
|
---|
923 | mLeavePassesInQueue |= RenderPriorityGroup::TRANSPARENT_PASSES;
|
---|
924 | }
|
---|
925 |
|
---|
926 | // transparents should be rendered after hierarchical culling to
|
---|
927 | // provide front-to-back ordering
|
---|
928 | if (mDelayRenderTransparents)
|
---|
929 | {
|
---|
930 | mLeavePassesInQueue |= RenderPriorityGroup::TRANSPARENT_PASSES;
|
---|
931 | }
|
---|
932 | }
|
---|
933 |
|
---|
934 | // skip rendering transparents during the hierarchical culling
|
---|
935 | // (because they will be rendered afterwards)
|
---|
936 | mSkipTransparents =
|
---|
937 | (mIsDepthPassPhase || (mLeavePassesInQueue & RenderPriorityGroup::TRANSPARENT_PASSES));
|
---|
938 |
|
---|
939 | // -- initialise interface for rendering traversal of the hierarchy
|
---|
940 | mHierarchyInterface->SetHierarchyRoot(mOctree);
|
---|
941 |
|
---|
942 | // possible two cameras (one for culling, one for rendering)
|
---|
943 | mHierarchyInterface->InitTraversal(mCameraInProgress,
|
---|
944 | mCullCamera ? getCamera("CullCamera") : NULL,
|
---|
945 | mLeavePassesInQueue);
|
---|
946 |
|
---|
947 | }
|
---|
948 | //-----------------------------------------------------------------------
|
---|
949 | OctreeHierarchyInterface *OcclusionCullingSceneManager::GetHierarchyInterface()
|
---|
950 | {
|
---|
951 | return mHierarchyInterface;
|
---|
952 | }
|
---|
953 | //-----------------------------------------------------------------------
|
---|
954 | void OcclusionCullingSceneManager::endFrame()
|
---|
955 | {
|
---|
956 | TerrainRenderable::ResetRenderLevelIndex();
|
---|
957 | }
|
---|
958 | //-----------------------------------------------------------------------
|
---|
959 | Entity* OcclusionCullingSceneManager::createEntity(const String& entityName,
|
---|
960 | const String& meshName)
|
---|
961 | {
|
---|
962 | Entity *ent = SceneManager::createEntity(entityName, meshName);
|
---|
963 |
|
---|
964 | for (int i = 0; i < (int)ent->getNumSubEntities(); ++i)
|
---|
965 | {
|
---|
966 | ent->getSubEntity(i)->setId(mCurrentEntityId);
|
---|
967 | }
|
---|
968 |
|
---|
969 | // increase counter of entity id values
|
---|
970 | ++ mCurrentEntityId;
|
---|
971 |
|
---|
972 | return ent;
|
---|
973 | }
|
---|
974 | //-----------------------------------------------------------------------
|
---|
975 | void OcclusionCullingSceneManager::renderAdditiveStencilShadowedQueueGroupObjects(
|
---|
976 | RenderQueueGroup* pGroup, QueuedRenderableCollection::OrganisationMode om)
|
---|
977 | {
|
---|
978 | // only render solid passes during hierarchical culling
|
---|
979 | if (mIsHierarchicalCulling)
|
---|
980 | {
|
---|
981 | RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
|
---|
982 | LightList lightList;
|
---|
983 |
|
---|
984 | while (groupIt.hasMoreElements())
|
---|
985 | {
|
---|
986 | RenderPriorityGroup* pPriorityGrp = groupIt.getNext();
|
---|
987 |
|
---|
988 | // Sort the queue first
|
---|
989 | pPriorityGrp->sort(mCameraInProgress);
|
---|
990 |
|
---|
991 | // Clear light list
|
---|
992 | lightList.clear();
|
---|
993 |
|
---|
994 | // Render all the ambient passes first, no light iteration, no lights
|
---|
995 | /*** msz: no more IRS_AMBIENT, see OgreSceneManager.h ***/
|
---|
996 | // mIlluminationStage = IRS_AMBIENT;
|
---|
997 |
|
---|
998 | OctreeSceneManager::renderObjects(pPriorityGrp->getSolidsBasic(), om, false, &lightList);
|
---|
999 | // Also render any objects which have receive shadows disabled
|
---|
1000 | OctreeSceneManager::renderObjects(pPriorityGrp->getSolidsNoShadowReceive(), om, true);
|
---|
1001 | #if 0
|
---|
1002 | std::stringstream d;
|
---|
1003 | d << " solid size: " << (int)pPriorityGrp->_getSolidPasses().size()
|
---|
1004 | << " solid no shadow size: " << (int)pPriorityGrp->_getSolidPassesNoShadow().size()
|
---|
1005 | << "difspec size: " << (int)pPriorityGrp->_getSolidPassesDiffuseSpecular().size()
|
---|
1006 | << " decal size: " << (int)pPriorityGrp->_getSolidPassesDecal().size();
|
---|
1007 | LogManager::getSingleton().logMessage(d.str());
|
---|
1008 | #endif
|
---|
1009 | }
|
---|
1010 | }
|
---|
1011 | else // render the rest of the passes
|
---|
1012 | {
|
---|
1013 | OctreeSceneManager::renderAdditiveStencilShadowedQueueGroupObjects(pGroup, om);
|
---|
1014 | }
|
---|
1015 | }
|
---|
1016 | //-----------------------------------------------------------------------
|
---|
1017 | void OcclusionCullingSceneManager::renderModulativeStencilShadowedQueueGroupObjects(
|
---|
1018 | RenderQueueGroup* pGroup, QueuedRenderableCollection::OrganisationMode om)
|
---|
1019 | {
|
---|
1020 | if (mIsHierarchicalCulling)
|
---|
1021 | {
|
---|
1022 | // Iterate through priorities
|
---|
1023 | RenderQueueGroup::PriorityMapIterator groupIt = pGroup->getIterator();
|
---|
1024 |
|
---|
1025 | while (groupIt.hasMoreElements())
|
---|
1026 | {
|
---|
1027 | RenderPriorityGroup* pPriorityGrp = groupIt.getNext();
|
---|
1028 |
|
---|
1029 | // Sort the queue first
|
---|
1030 | pPriorityGrp->sort(mCameraInProgress);
|
---|
1031 |
|
---|
1032 | // Do (shadowable) solids
|
---|
1033 | OctreeSceneManager::renderObjects(pPriorityGrp->getSolidsBasic(), om, true);
|
---|
1034 | }
|
---|
1035 | }
|
---|
1036 | else
|
---|
1037 | {
|
---|
1038 | OctreeSceneManager::renderModulativeStencilShadowedQueueGroupObjects(pGroup, om);
|
---|
1039 | }
|
---|
1040 | }
|
---|
1041 | //-------------------------------------------------------------------------
|
---|
1042 | void OcclusionCullingSceneManager::SetObjectsVisible(const bool visible)
|
---|
1043 | {
|
---|
1044 | GtpVisibilityPreprocessor::ObjectContainer::iterator it, it_end = mObjects.end();
|
---|
1045 |
|
---|
1046 | for (it = mObjects.begin(); it != it_end; ++ it)
|
---|
1047 | {
|
---|
1048 | OgreMeshInstance *omi = static_cast<OgreMeshInstance *>(*it);
|
---|
1049 | Entity *ent = omi->GetEntity();
|
---|
1050 |
|
---|
1051 | ent->setVisible(visible);
|
---|
1052 | }
|
---|
1053 | }
|
---|
1054 | //-----------------------------------------------------------------------
|
---|
1055 | bool OcclusionCullingSceneManager::LoadViewCells(const String &filename)
|
---|
1056 | {
|
---|
1057 | // objects are set to invisible initially
|
---|
1058 | SetObjectsVisible(false);
|
---|
1059 |
|
---|
1060 | // converter between view cell ids and Ogre entites
|
---|
1061 | GtpVisibilityPreprocessor::IndexedBoundingBoxContainer iboxes;
|
---|
1062 | OctreeBoundingBoxConverter bconverter(this);
|
---|
1063 |
|
---|
1064 | // load the view cells assigning the found objects to the pvss
|
---|
1065 | const bool finalizeViewCells = true;
|
---|
1066 | mViewCellsManager =
|
---|
1067 | GtpVisibilityPreprocessor::ViewCellsManager::LoadViewCells(filename, &mObjects, true, &bconverter);
|
---|
1068 |
|
---|
1069 | if (finalizeViewCells)
|
---|
1070 | {
|
---|
1071 | CreateViewCellsGeometry();
|
---|
1072 | }
|
---|
1073 |
|
---|
1074 | return (mViewCellsManager != NULL);
|
---|
1075 | }
|
---|
1076 | //-------------------------------------------------------------------------
|
---|
1077 | void OcclusionCullingSceneManager::ApplyViewCellPvs(GtpVisibilityPreprocessor::ViewCell *vc,
|
---|
1078 | const bool load)
|
---|
1079 | { // NOTE: should not encounter NULL view cell,
|
---|
1080 | // rather apply view cell representing unbounded space then
|
---|
1081 | if (!vc)
|
---|
1082 | {
|
---|
1083 | // if no there is no view cell, set everything visible
|
---|
1084 | SetObjectsVisible(true);
|
---|
1085 | return;
|
---|
1086 | }
|
---|
1087 |
|
---|
1088 | GtpVisibilityPreprocessor::ObjectPvsMap::const_iterator oit,
|
---|
1089 | oit_end = vc->GetPvs().mEntries.end();
|
---|
1090 |
|
---|
1091 | ////////////
|
---|
1092 | //-- set PVS of view cell to visible
|
---|
1093 |
|
---|
1094 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
1095 | {
|
---|
1096 | if (!(*oit).first) continue;
|
---|
1097 |
|
---|
1098 | OgreMeshInstance *omi = dynamic_cast<OgreMeshInstance *>((*oit).first);
|
---|
1099 | omi->GetEntity()->setVisible(load);
|
---|
1100 | //GtpVisibilityPreprocessor::Debug << "assigned id " << omi->GetId() << endl;
|
---|
1101 | }
|
---|
1102 | }
|
---|
1103 | //-------------------------------------------------------------------------
|
---|
1104 | void OcclusionCullingSceneManager::UpdatePvs(Camera *cam)
|
---|
1105 | {
|
---|
1106 | if (!(mViewCellsLoaded && mUseViewCells))
|
---|
1107 | return;
|
---|
1108 |
|
---|
1109 | const GtpVisibilityPreprocessor::Vector3 viewPoint =
|
---|
1110 | OgreTypeConverter::ConvertFromOgre(cam->getDerivedPosition());
|
---|
1111 |
|
---|
1112 | GtpVisibilityPreprocessor::ViewCell *newElementary =
|
---|
1113 | mViewCellsManager->GetViewCell(viewPoint);
|
---|
1114 |
|
---|
1115 | // elementary view cell did not change => apply same pvs
|
---|
1116 | if (mElementaryViewCell == newElementary)
|
---|
1117 | return;
|
---|
1118 |
|
---|
1119 | mElementaryViewCell = newElementary;
|
---|
1120 | LogManager::getSingleton().logMessage("unloading");
|
---|
1121 |
|
---|
1122 | std::stringstream d;
|
---|
1123 | d << "here2 " << mViewCellsGeometry.size();
|
---|
1124 | LogManager::getSingleton().logMessage(d.str());
|
---|
1125 |
|
---|
1126 | //////////////
|
---|
1127 | //-- unload old pvs
|
---|
1128 |
|
---|
1129 | ApplyViewCellPvs(mCurrentViewCell, false);
|
---|
1130 |
|
---|
1131 | // set old view cell geometry to invisible
|
---|
1132 | if (mCurrentViewCell && mCurrentViewCell->GetMesh())
|
---|
1133 | {
|
---|
1134 | const int id = mCurrentViewCell->GetId();
|
---|
1135 |
|
---|
1136 | std::stringstream str;
|
---|
1137 | str << "id : " << id << " of " << mViewCellsGeometry.size();
|
---|
1138 | LogManager::getSingleton().logMessage(str.str());
|
---|
1139 |
|
---|
1140 | mViewCellsGeometry[id]->setVisible(false);
|
---|
1141 | }
|
---|
1142 |
|
---|
1143 | // the new view cell
|
---|
1144 | GtpVisibilityPreprocessor::ViewCell *viewCell;
|
---|
1145 |
|
---|
1146 | if (mUseVisibilityFilter)
|
---|
1147 | {
|
---|
1148 | ////////////
|
---|
1149 | //-- compute new filtered cell
|
---|
1150 |
|
---|
1151 | GtpVisibilityPreprocessor::PrVs prvs;
|
---|
1152 | mViewCellsManager->GetPrVS(viewPoint, prvs, 5);
|
---|
1153 | viewCell = prvs.mViewCell;
|
---|
1154 | }
|
---|
1155 | else
|
---|
1156 | {
|
---|
1157 | viewCell = newElementary;LogManager::getSingleton().logMessage("here55");
|
---|
1158 | }
|
---|
1159 |
|
---|
1160 | ///////////////
|
---|
1161 | //-- load new pvs
|
---|
1162 |
|
---|
1163 | // set new view cell geometry to invisible
|
---|
1164 | if (viewCell && viewCell->GetMesh())
|
---|
1165 | {
|
---|
1166 | const int id = viewCell->GetId();
|
---|
1167 |
|
---|
1168 | std::stringstream str;
|
---|
1169 | str << "id : " << id << " of " << mViewCellsGeometry.size();
|
---|
1170 | LogManager::getSingleton().logMessage(str.str());
|
---|
1171 |
|
---|
1172 | mViewCellsGeometry[id]->setVisible(false);
|
---|
1173 | }
|
---|
1174 |
|
---|
1175 | ApplyViewCellPvs(viewCell, true);
|
---|
1176 |
|
---|
1177 | // store pvs
|
---|
1178 | if (viewCell)
|
---|
1179 | {
|
---|
1180 | mCurrentViewCell->SetPvs(viewCell->GetPvs());
|
---|
1181 | mCurrentViewCell->SetMesh(viewCell->GetMesh());
|
---|
1182 | mCurrentViewCell->SetId(viewCell->GetId());
|
---|
1183 |
|
---|
1184 | // delete merge tree of filtered view cell
|
---|
1185 | if (mUseVisibilityFilter)
|
---|
1186 | mViewCellsManager->DeleteLocalMergeTree(viewCell);
|
---|
1187 | }
|
---|
1188 | }
|
---|
1189 | //-------------------------------------------------------------------------
|
---|
1190 | void OcclusionCullingSceneManager::CreateViewCellsGeometry()
|
---|
1191 | {
|
---|
1192 | LogManager::getSingleton().logMessage("creating view cells geometry");
|
---|
1193 |
|
---|
1194 | GtpVisibilityPreprocessor::ViewCellContainer viewCells = mViewCellsManager->GetViewCells();
|
---|
1195 |
|
---|
1196 | GtpVisibilityPreprocessor::ViewCellContainer::const_iterator it, it_end = viewCells.end();
|
---|
1197 | for (it = viewCells.begin(); it != it_end; ++ it)
|
---|
1198 | {
|
---|
1199 | GtpVisibilityPreprocessor::ViewCell *viewCell = *it;
|
---|
1200 |
|
---|
1201 | std::stringstream str;
|
---|
1202 | str << "id : " << viewCell->GetId();
|
---|
1203 |
|
---|
1204 | ManualObject *manual = OgreTypeConverter::ConvertToOgre(viewCell->GetMesh(), this);
|
---|
1205 | mViewCellsGeometry[viewCell->GetId()] = manual;
|
---|
1206 |
|
---|
1207 | // attach to scene node
|
---|
1208 | getRootSceneNode()->createChildSceneNode()->attachObject(manual);
|
---|
1209 |
|
---|
1210 | // initialy set to invisible
|
---|
1211 | manual->setVisible(false);
|
---|
1212 | }
|
---|
1213 | }
|
---|
1214 |
|
---|
1215 | #if 0
|
---|
1216 | //-------------------------------------------------------------------------
|
---|
1217 | void OcclusionCullingSceneManager::TestVisible(SceneNode *node)
|
---|
1218 | {
|
---|
1219 | // first test for scene node, then for octant (part of the hierarchy)
|
---|
1220 | if (!node->mVisibleChildren)
|
---|
1221 | node->setVisible(false);
|
---|
1222 |
|
---|
1223 | node->getOctant()->mVisibleChildren --;
|
---|
1224 | }
|
---|
1225 | //-------------------------------------------------------------------------
|
---|
1226 | void OcclusionCullingSceneManager::TestVisible(Octree *octant)
|
---|
1227 | {
|
---|
1228 | // first test for scene node, then for octant (part of the hierarchy)
|
---|
1229 | if (!octant->mVisibleChildren)
|
---|
1230 | {
|
---|
1231 | octant->setVisible(false);
|
---|
1232 | }
|
---|
1233 | }
|
---|
1234 |
|
---|
1235 | //-------------------------------------------------------------------------
|
---|
1236 | void OcclusionCullingSceneManager::UpdateVisibility(Entity *ent)
|
---|
1237 | {
|
---|
1238 | if (!ent->isVisible())
|
---|
1239 | {
|
---|
1240 | bool visible = TestVisible(ent->getParentNode());
|
---|
1241 |
|
---|
1242 | if (!visible)
|
---|
1243 | visible = TestVisible(octant->getParentNode());
|
---|
1244 |
|
---|
1245 | if (!visible)
|
---|
1246 | mHierarchyInterface->pullupVisibility();
|
---|
1247 | }
|
---|
1248 | }
|
---|
1249 | #endif
|
---|
1250 | //-----------------------------------------------------------------------
|
---|
1251 | const String OcclusionCullingSceneManagerFactory::FACTORY_TYPE_NAME = "OcclusionCullingSceneManager";
|
---|
1252 | //-----------------------------------------------------------------------
|
---|
1253 | void OcclusionCullingSceneManagerFactory::initMetaData(void) const
|
---|
1254 | {
|
---|
1255 | mMetaData.typeName = FACTORY_TYPE_NAME;
|
---|
1256 | mMetaData.description = "Scene manager organising the scene on the basis of an octree with advanced occlusion culling (TM).";
|
---|
1257 | mMetaData.sceneTypeMask = 0xFFFF; // support all types
|
---|
1258 | mMetaData.worldGeometrySupported = false;
|
---|
1259 | }
|
---|
1260 | //-----------------------------------------------------------------------
|
---|
1261 | SceneManager *OcclusionCullingSceneManagerFactory::createInstance(
|
---|
1262 | const String& instanceName)
|
---|
1263 | {
|
---|
1264 | OcclusionCullingSceneManager* tsm = new OcclusionCullingSceneManager(instanceName, visManager);
|
---|
1265 |
|
---|
1266 | // Create & register default sources (one per manager)
|
---|
1267 | HeightmapTerrainPageSource* ps = new HeightmapTerrainPageSource();
|
---|
1268 | mTerrainPageSources.push_back(ps);
|
---|
1269 | tsm->registerPageSource("Heightmap", ps);
|
---|
1270 |
|
---|
1271 | return tsm;
|
---|
1272 | }
|
---|
1273 | //-----------------------------------------------------------------------
|
---|
1274 | void OcclusionCullingSceneManagerFactory::destroyInstance(SceneManager* instance)
|
---|
1275 | {
|
---|
1276 | delete instance;
|
---|
1277 | }
|
---|
1278 |
|
---|
1279 | } // namespace Ogre
|
---|