1 |
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2 | #include "LBBCLeafDistributionGenerator.h"
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3 |
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4 | #include <BBC.h>
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5 |
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6 | namespace LBBC {
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7 |
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8 | LeafDistributionGenerator::LeafDistributionGenerator()
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9 | {
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10 | mEntity = BBC::EntityPtr(new BBC::Entity());
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11 | }
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12 |
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13 | LeafDistributionGenerator::~LeafDistributionGenerator()
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14 | {
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15 | }
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16 |
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17 | void LeafDistributionGenerator::generate()
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18 | {
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19 | BBC::Timer leafDistributionTimer;
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20 | leafDistributionTimer.start();
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21 | leafDistributionTimer.printStartTime();
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22 |
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23 | mEntity->loadMesh(true);
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24 |
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25 | unsigned int posNorm = 0;
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26 | unsigned int negNorm = 0;
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27 |
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28 | std::vector<Ogre::Vector3>::iterator iFaces01;
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29 | std::vector<Ogre::Vector3>::iterator iFaces02;
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30 | std::vector<Ogre::Vector2>::iterator iVertexs;
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31 |
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32 | std::vector<float> vD,vNx,vNy,vNz;
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33 |
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34 | unsigned int iV101,iV201,iV301;
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35 | unsigned int iV102,iV202,iV302;
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36 | Ogre::Vector3 v101,v201,v301;
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37 | Ogre::Vector3 v102,v202,v302;
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38 |
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39 | for (unsigned int iF01 = 0; iF01 < mEntity->getSubEntity(0)->getNumFaces(); iF01++)
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40 | {
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41 | Ogre::Vector3 vFace01 = mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01);
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42 |
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43 | iV101 = vFace01[0];
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44 | iV201 = vFace01[1];
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45 | iV301 = vFace01[2];
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46 |
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47 | v101 = mEntity->getSubEntity(0)->getUniqueVertex(iV101).position;
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48 | v201 = mEntity->getSubEntity(0)->getUniqueVertex(iV201).position;
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49 | v301 = mEntity->getSubEntity(0)->getUniqueVertex(iV301).position;
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50 |
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51 | for (unsigned int iF02 = 0; iF02 < mEntity->getSubEntity(0)->getNumFaces(); iF02++)
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52 | {
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53 | Ogre::Vector3 vFace02 = mEntity->getSubEntity(0)->getFaceVerticesIDs(iF02);
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54 | iV102 = vFace02[0];
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55 | iV202 = vFace02[1];
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56 | iV302 = vFace02[2];
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57 |
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58 | v102 = mEntity->getSubEntity(0)->getUniqueVertex(iV102).position;
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59 | v202 = mEntity->getSubEntity(0)->getUniqueVertex(iV202).position;
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60 | v302 = mEntity->getSubEntity(0)->getUniqueVertex(iV302).position;
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61 |
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62 |
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63 |
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64 | //Ogre::LogManager::getSingleton().logMessage("face A: " + Ogre::StringConverter::toString(iF01));
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65 | //Ogre::LogManager::getSingleton().logMessage("indices A:" + Ogre::StringConverter::toString(vFace01));
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66 | //Ogre::LogManager::getSingleton().logMessage("face B: " + Ogre::StringConverter::toString(iF02));
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67 | //Ogre::LogManager::getSingleton().logMessage("indices B:" + Ogre::StringConverter::toString(vFace02));
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68 |
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69 | if ((iF01 != iF02) &&
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70 | (
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71 | ((v101 == v102) && (v201 == v202)) ||
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72 | ((v101 == v202) && (v201 == v102)) ||
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73 | ((v101 == v102) && (v201 == v302)) ||
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74 | ((v101 == v302) && (v201 == v102)) ||
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75 | ((v101 == v202) && (v201 == v302)) ||
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76 | ((v101 == v302) && (v201 == v202)) ||
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77 | //-----------------------------------
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78 | ((v201 == v102) && (v301 == v202)) ||
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79 | ((v201 == v202) && (v301 == v102)) ||
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80 | ((v201 == v102) && (v301 == v302)) ||
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81 | ((v201 == v302) && (v301 == v102)) ||
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82 | ((v201 == v202) && (v301 == v302)) ||
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83 | ((v201 == v302) && (v301 == v202)) ||
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84 | //-----------------------------------
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85 | ((v101 == v102) && (v301 == v202)) ||
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86 | ((v101 == v202) && (v301 == v102)) ||
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87 | ((v101 == v102) && (v301 == v302)) ||
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88 | ((v101 == v302) && (v301 == v102)) ||
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89 | ((v101 == v202) && (v301 == v302)) ||
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90 | ((v101 == v302) && (v301 == v202))
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91 | )
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92 | )
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93 | {
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94 | if (mEntityDistribution->getNumEntities() == 0)
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95 | {
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96 | // Instance new leaf
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97 | Leaf *leaf = new Leaf();
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98 |
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99 | leaf->setEntityHandle(mEntityDistribution->getNumEntities());
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100 | leaf->getSubEntity(0)->addTextureCoordSet(2);
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101 |
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102 | leaf->addFace(iF01);
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103 | leaf->addFaceInfo(
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104 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).x),
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105 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).y),
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106 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).z));
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107 |
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108 | mEntityDistribution->addEntity(leaf);
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109 |
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110 | //Ogre::LogManager::getSingleton().logMessage("leaf:" + Ogre::StringConverter::toString(leaf->getEntityHandle()));
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111 | //Ogre::LogManager::getSingleton().logMessage("indices:" + Ogre::StringConverter::toString(vFace01));
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112 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(iF01));
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113 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(leaf->getFace(0)));
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114 | }
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115 | else
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116 | {
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117 | unsigned int j = 0;
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118 | bool leaveFound = false;
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119 |
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120 | // Check if the face is in one of the Leaf sets...
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121 | while ((j < mEntityDistribution->getNumEntities()) && (!leaveFound))
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122 | {
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123 | Leaf *leaf = (Leaf *)mEntityDistribution->getEntity(j).get();
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124 | if (leaf->hasFace(iF01))
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125 | {
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126 | leaveFound = true;
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127 | leaf->addFace(iF02);
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128 | leaf->addFaceInfo(
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129 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF02).x),
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130 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF02).y),
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131 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF02).z));
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132 |
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133 | //Ogre::LogManager::getSingleton().logMessage("leaf:" + Ogre::StringConverter::toString(leaf->getEntityHandle()));
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134 | //Ogre::LogManager::getSingleton().logMessage("indices:" + Ogre::StringConverter::toString(vFace02));
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135 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(iF02));
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136 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(leaf->getFace(0)));
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137 | }
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138 | else
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139 | {
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140 | if (leaf->hasFace(iF02))
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141 | {
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142 | leaveFound = true;
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143 | leaf->addFace(iF01);
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144 | leaf->addFaceInfo(
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145 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).x),
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146 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).y),
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147 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).z));
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148 |
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149 | //Ogre::LogManager::getSingleton().logMessage("leaf:" + Ogre::StringConverter::toString(leaf->getEntityHandle()));
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150 | //Ogre::LogManager::getSingleton().logMessage("indices:" + Ogre::StringConverter::toString(vFace01));
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151 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(iF01));
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152 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(leaf->getFace(0)));
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153 | }
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154 | }
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155 | j++;
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156 | }
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157 |
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158 | if (!leaveFound)
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159 | {
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160 | // Instance new leaf
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161 | Leaf *leaf = new Leaf();
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162 |
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163 | leaf->setEntityHandle(mEntityDistribution->getNumEntities());
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164 | leaf->getSubEntity(0)->addTextureCoordSet(2);
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165 | leaf->addFace(iF01);
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166 | leaf->addFaceInfo(
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167 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).x),
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168 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).y),
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169 | mEntity->getSubEntity(0)->getUniqueVertex(mEntity->getSubEntity(0)->getFaceVerticesIDs(iF01).z));
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170 |
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171 | mEntityDistribution->addEntity(leaf);
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172 |
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173 | //Ogre::LogManager::getSingleton().logMessage("leaf:" + Ogre::StringConverter::toString(leaf->getEntityHandle()));
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174 | //Ogre::LogManager::getSingleton().logMessage("indices:" + Ogre::StringConverter::toString(vFace01));
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175 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(iF01));
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176 | //Ogre::LogManager::getSingleton().logMessage("face stored: " + Ogre::StringConverter::toString(leaf->getFace(0)));
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177 | //cin.get();
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178 | }
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179 | }
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180 | }
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181 | }
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182 | }
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183 |
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184 | // Generate the average normal, leaf position, and d leaf plane parameter for each leaf...
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185 | for (unsigned int ileaf = 0; ileaf < mEntityDistribution->getNumEntities(); ileaf++)
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186 | {
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187 | Leaf *leaf = (Leaf*) mEntityDistribution->getEntity(ileaf).get();
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188 | generateAverageLeafPosition(leaf);
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189 | generateAverageLeafNormal(leaf);
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190 | leaf->setLeafD(-leaf->getLeafNormal().dotProduct(leaf->getPosition()));
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191 | }
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192 |
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193 | // Compute the max and min d leaf plane parameter, and the max and min normal value...
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194 | float minD;
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195 | float maxD;
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196 | Ogre::Vector3 minNormal;
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197 | Ogre::Vector3 maxNormal;
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198 |
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199 | generateNormalDThreshold(minD, maxD, minNormal, maxNormal);
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200 |
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201 | ((LeafDistribution*)mEntityDistribution)->setMaxD(maxD);
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202 | ((LeafDistribution*)mEntityDistribution)->setMinD(minD);
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203 | ((LeafDistribution*)mEntityDistribution)->setMaxNormal(maxNormal);
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204 | ((LeafDistribution*)mEntityDistribution)->setMinNormal(minNormal);
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205 |
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206 | leafDistributionTimer.stop();
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207 | leafDistributionTimer.printStopTime();
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208 | }
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209 |
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210 | void LeafDistributionGenerator::generateNormalDThreshold(float &minD, float &maxD, Ogre::Vector3 &minNormal, Ogre::Vector3 &maxNormal)
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211 | {
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212 | float dMin = FLT_MAX;
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213 | float dMax = -FLT_MAX;
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214 |
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215 | float nXMax = -1;
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216 | float nYMax = -1;
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217 | float nZMax = -1;
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218 | float nYMin = 1;
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219 | float nXMin = 1;
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220 | float nZMin = 1;
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221 |
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222 | for (unsigned int iD = 0; iD < mEntityDistribution->getNumEntities(); iD++)
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223 | {
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224 | Leaf *leaf = (Leaf *)mEntityDistribution->getEntity(iD).get();
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225 | if (leaf->getLeafD() < dMin)
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226 | {
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227 | dMin = leaf->getLeafD();
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228 | }
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229 |
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230 | if (leaf->getLeafD() > dMax)
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231 | {
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232 | dMax = leaf->getLeafD();
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233 | }
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234 | //--------------------
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235 | if (leaf->getLeafNormal().x < nXMin)
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236 | {
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237 | nXMin = leaf->getLeafNormal().x;
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238 | }
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239 |
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240 | if (leaf->getLeafNormal().x > nXMax)
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241 | {
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242 | nXMax = leaf->getLeafNormal().x;
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243 | }
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244 | //--------------------
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245 | if (leaf->getLeafNormal().y < nYMin)
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246 | {
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247 | nYMin = leaf->getLeafNormal().y;
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248 | }
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249 |
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250 | if (leaf->getLeafNormal().y > nYMax)
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251 | {
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252 | nYMax = leaf->getLeafNormal().y;
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253 | }
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254 | //--------------------
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255 | if (leaf->getLeafNormal().z < nZMin)
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256 | {
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257 | nZMin = leaf->getLeafNormal().z;
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258 | }
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259 |
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260 | if (leaf->getLeafNormal().z > nZMax)
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261 | {
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262 | nZMax = leaf->getLeafNormal().z;
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263 | }
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264 | }
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265 | minNormal = Ogre::Vector3(nXMin, nYMin, nZMin);
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266 | maxNormal = Ogre::Vector3(nXMax, nYMax, nZMax);
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267 |
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268 | minD = dMin;
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269 | maxD = dMax;
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270 | }
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271 |
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272 | void LeafDistributionGenerator::generateAverageLeafNormal(Leaf *leaf)
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273 | {
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274 | Ogre::Vector3 aVnormal(0,0,0);
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275 | for (unsigned int iN = 0; iN < leaf->getNumLeafNormals(); iN++)
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276 | {
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277 | aVnormal = aVnormal + leaf->getFaceNormal(iN);
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278 | }
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279 | aVnormal = aVnormal / leaf->getNumLeafNormals();
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280 | aVnormal.normalise();
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281 |
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282 | leaf->setLeafNormal(aVnormal);
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283 | }
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284 |
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285 | void LeafDistributionGenerator::generateAverageLeafPosition(Leaf *leaf)
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286 | {
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287 | Ogre::Vector3 aVPosition(0,0,0);
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288 | for (unsigned int iN = 0; iN < leaf->getSubEntity(0)->getNumVertices(); iN++)
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289 | {
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290 | aVPosition = aVPosition + leaf->getSubEntity(0)->getPosition(iN);
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291 | }
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292 | aVPosition = aVPosition / leaf->getSubEntity(0)->getNumVertices();
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293 |
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294 | leaf->setPosition(aVPosition);
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295 | }
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296 |
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297 | }
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