1 | /* |
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2 | ----------------------------------------------------------------------------- |
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3 | This source file is part of OGRE |
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4 | (Object-oriented Graphics Rendering Engine) |
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5 | For the latest info, see http://www.ogre3d.org/ |
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6 | |
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7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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8 | Also see acknowledgements in Readme.html |
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9 | |
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10 | This program is free software; you can redistribute it and/or modify it under |
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11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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12 | Foundation; either version 2 of the License, or (at your option) any later |
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13 | version. |
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14 | |
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15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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18 | |
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19 | You should have received a copy of the GNU Lesser General Public License along with |
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20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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22 | http://www.gnu.org/copyleft/lesser.txt. |
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23 | |
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24 | You may alternatively use this source under the terms of a specific version of |
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25 | the OGRE Unrestricted License provided you have obtained such a license from |
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26 | Torus Knot Software Ltd. |
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27 | ----------------------------------------------------------------------------- |
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28 | */ |
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29 | #include "OgreStableHeaders.h" |
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30 | |
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31 | #include "OgreBillboardSet.h" |
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32 | |
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33 | #include "OgreBillboard.h" |
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34 | #include "OgreMaterialManager.h" |
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35 | #include "OgreHardwareBufferManager.h" |
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36 | #include "OgreCamera.h" |
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37 | #include "OgreMath.h" |
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38 | #include "OgreSphere.h" |
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39 | #include "OgreRoot.h" |
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40 | #include "OgreRenderSystem.h" |
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41 | #include "OgreRenderSystemCapabilities.h" |
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42 | #include "OgreException.h" |
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43 | #include "OgreStringConverter.h" |
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44 | #include "OgreLogManager.h" |
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45 | #include <algorithm> |
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46 | |
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47 | namespace Ogre { |
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48 | // Init statics |
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49 | RadixSort<BillboardSet::ActiveBillboardList, Billboard*, float> BillboardSet::mRadixSorter; |
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50 | |
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51 | //----------------------------------------------------------------------- |
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52 | BillboardSet::BillboardSet() : |
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53 | mBoundingRadius(0.0f), |
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54 | mOriginType( BBO_CENTER ), |
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55 | mRotationType( BBR_TEXCOORD ), |
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56 | mAllDefaultSize( true ), |
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57 | mAutoExtendPool( true ), |
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58 | mSortingEnabled(false), |
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59 | mAccurateFacing(false), |
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60 | mAllDefaultRotation(true), |
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61 | mWorldSpace(false), |
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62 | mVertexData(0), |
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63 | mIndexData(0), |
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64 | mCullIndividual( false ), |
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65 | mBillboardType(BBT_POINT), |
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66 | mCommonDirection(Ogre::Vector3::UNIT_Z), |
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67 | mCommonUpVector(Vector3::UNIT_Y), |
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68 | mPointRendering(false), |
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69 | mBuffersCreated(false), |
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70 | mPoolSize(0), |
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71 | mExternalData(false) |
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72 | { |
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73 | setDefaultDimensions( 100, 100 ); |
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74 | setMaterialName( "BaseWhite" ); |
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75 | mCastShadows = false; |
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76 | setTextureStacksAndSlices( 1, 1 ); |
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77 | } |
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78 | |
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79 | //----------------------------------------------------------------------- |
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80 | BillboardSet::BillboardSet( |
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81 | const String& name, |
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82 | unsigned int poolSize, |
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83 | bool externalData) : |
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84 | MovableObject(name), |
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85 | mBoundingRadius(0.0f), |
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86 | mOriginType( BBO_CENTER ), |
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87 | mRotationType( BBR_TEXCOORD ), |
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88 | mAllDefaultSize( true ), |
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89 | mAutoExtendPool( true ), |
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90 | mSortingEnabled(false), |
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91 | mAccurateFacing(false), |
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92 | mAllDefaultRotation(true), |
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93 | mWorldSpace(false), |
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94 | mVertexData(0), |
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95 | mIndexData(0), |
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96 | mCullIndividual( false ), |
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97 | mBillboardType(BBT_POINT), |
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98 | mCommonDirection(Ogre::Vector3::UNIT_Z), |
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99 | mCommonUpVector(Vector3::UNIT_Y), |
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100 | mPointRendering(false), |
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101 | mBuffersCreated(false), |
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102 | mPoolSize(poolSize), |
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103 | mExternalData(externalData) |
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104 | { |
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105 | setDefaultDimensions( 100, 100 ); |
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106 | setMaterialName( "BaseWhite" ); |
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107 | setPoolSize( poolSize ); |
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108 | mCastShadows = false; |
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109 | setTextureStacksAndSlices( 1, 1 ); |
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110 | } |
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111 | //----------------------------------------------------------------------- |
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112 | BillboardSet::~BillboardSet() |
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113 | { |
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114 | // Free pool items |
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115 | BillboardPool::iterator i; |
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116 | for (i = mBillboardPool.begin(); i != mBillboardPool.end(); ++i) |
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117 | { |
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118 | delete *i; |
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119 | } |
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120 | |
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121 | // Delete shared buffers |
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122 | _destroyBuffers(); |
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123 | } |
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124 | //----------------------------------------------------------------------- |
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125 | Billboard* BillboardSet::createBillboard( |
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126 | const Vector3& position, |
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127 | const ColourValue& colour ) |
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128 | { |
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129 | if( mFreeBillboards.empty() ) |
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130 | { |
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131 | if( mAutoExtendPool ) |
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132 | { |
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133 | setPoolSize( getPoolSize() * 2 ); |
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134 | } |
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135 | else |
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136 | { |
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137 | return 0; |
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138 | } |
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139 | } |
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140 | |
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141 | // Get a new billboard |
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142 | Billboard* newBill = mFreeBillboards.front(); |
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143 | mActiveBillboards.splice( |
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144 | mActiveBillboards.end(), mFreeBillboards, mFreeBillboards.begin()); |
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145 | newBill->setPosition(position); |
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146 | newBill->setColour(colour); |
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147 | newBill->mDirection = Vector3::ZERO; |
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148 | newBill->setRotation(Radian(0)); |
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149 | newBill->setTexcoordIndex(0); |
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150 | newBill->resetDimensions(); |
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151 | newBill->_notifyOwner(this); |
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152 | |
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153 | // Merge into bounds |
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154 | Real adjust = std::max(mDefaultWidth, mDefaultHeight); |
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155 | Vector3 vecAdjust(adjust, adjust, adjust); |
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156 | Vector3 newMin = position - vecAdjust; |
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157 | Vector3 newMax = position + vecAdjust; |
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158 | |
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159 | mAABB.merge(newMin); |
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160 | mAABB.merge(newMax); |
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161 | |
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162 | Real sqlen = std::max(newMin.squaredLength(), newMax.squaredLength()); |
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163 | mBoundingRadius = std::max(mBoundingRadius, Math::Sqrt(sqlen)); |
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164 | |
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165 | return newBill; |
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166 | } |
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167 | |
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168 | //----------------------------------------------------------------------- |
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169 | Billboard* BillboardSet::createBillboard( |
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170 | Real x, Real y, Real z, |
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171 | const ColourValue& colour ) |
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172 | { |
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173 | return createBillboard( Vector3( x, y, z ), colour ); |
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174 | } |
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175 | |
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176 | //----------------------------------------------------------------------- |
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177 | int BillboardSet::getNumBillboards(void) const |
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178 | { |
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179 | return static_cast< int >( mActiveBillboards.size() ); |
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180 | } |
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181 | |
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182 | //----------------------------------------------------------------------- |
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183 | void BillboardSet::clear() |
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184 | { |
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185 | // Move actives to free list |
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186 | mFreeBillboards.splice(mFreeBillboards.end(), mActiveBillboards); |
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187 | } |
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188 | |
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189 | //----------------------------------------------------------------------- |
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190 | Billboard* BillboardSet::getBillboard( unsigned int index ) const |
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191 | { |
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192 | assert( |
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193 | index < mActiveBillboards.size() && |
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194 | "Billboard index out of bounds." ); |
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195 | |
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196 | /* We can't access it directly, so we check wether it's in the first |
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197 | or the second half, then we start either from the beginning or the |
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198 | end of the list |
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199 | */ |
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200 | ActiveBillboardList::const_iterator it; |
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201 | if( index >= ( mActiveBillboards.size() >> 1 ) ) |
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202 | { |
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203 | index = static_cast<unsigned int>(mActiveBillboards.size()) - index; |
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204 | for( it = mActiveBillboards.end(); index; --index, --it ); |
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205 | } |
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206 | else |
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207 | { |
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208 | for( it = mActiveBillboards.begin(); index; --index, ++it ); |
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209 | } |
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210 | |
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211 | return *it; |
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212 | } |
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213 | |
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214 | //----------------------------------------------------------------------- |
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215 | void BillboardSet::removeBillboard(unsigned int index) |
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216 | { |
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217 | assert( |
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218 | index < mActiveBillboards.size() && |
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219 | "Billboard index out of bounds." ); |
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220 | |
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221 | /* We can't access it directly, so we check wether it's in the first |
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222 | or the second half, then we start either from the beginning or the |
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223 | end of the list. |
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224 | We then remove the billboard form the 'used' list and add it to |
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225 | the 'free' list. |
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226 | */ |
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227 | ActiveBillboardList::iterator it; |
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228 | if( index >= ( mActiveBillboards.size() >> 1 ) ) |
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229 | { |
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230 | index = static_cast<unsigned int>(mActiveBillboards.size()) - index; |
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231 | for( it = mActiveBillboards.end(); index; --index, --it ); |
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232 | } |
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233 | else |
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234 | { |
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235 | for( it = mActiveBillboards.begin(); index; --index, ++it ); |
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236 | } |
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237 | |
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238 | mFreeBillboards.splice(mFreeBillboards.end(), mActiveBillboards, it); |
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239 | } |
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240 | |
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241 | //----------------------------------------------------------------------- |
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242 | void BillboardSet::removeBillboard( Billboard* pBill ) |
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243 | { |
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244 | ActiveBillboardList::iterator it = |
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245 | std::find(mActiveBillboards.begin(), mActiveBillboards.end(), pBill); |
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246 | assert( |
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247 | it != mActiveBillboards.end() && |
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248 | "Billboard isn't in the active list." ); |
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249 | |
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250 | mFreeBillboards.splice(mFreeBillboards.end(), mActiveBillboards, it); |
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251 | } |
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252 | |
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253 | //----------------------------------------------------------------------- |
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254 | void BillboardSet::setBillboardOrigin( BillboardOrigin origin ) |
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255 | { |
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256 | mOriginType = origin; |
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257 | } |
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258 | |
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259 | //----------------------------------------------------------------------- |
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260 | BillboardOrigin BillboardSet::getBillboardOrigin(void) const |
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261 | { |
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262 | return mOriginType; |
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263 | } |
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264 | |
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265 | //----------------------------------------------------------------------- |
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266 | void BillboardSet::setBillboardRotationType(BillboardRotationType rotationType) |
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267 | { |
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268 | mRotationType = rotationType; |
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269 | } |
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270 | //----------------------------------------------------------------------- |
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271 | BillboardRotationType BillboardSet::getBillboardRotationType(void) const |
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272 | { |
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273 | return mRotationType; |
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274 | } |
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275 | //----------------------------------------------------------------------- |
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276 | void BillboardSet::setDefaultDimensions( Real width, Real height ) |
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277 | { |
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278 | mDefaultWidth = width; |
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279 | mDefaultHeight = height; |
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280 | } |
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281 | //----------------------------------------------------------------------- |
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282 | void BillboardSet::setDefaultWidth(Real width) |
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283 | { |
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284 | mDefaultWidth = width; |
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285 | } |
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286 | //----------------------------------------------------------------------- |
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287 | Real BillboardSet::getDefaultWidth(void) const |
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288 | { |
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289 | return mDefaultWidth; |
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290 | } |
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291 | //----------------------------------------------------------------------- |
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292 | void BillboardSet::setDefaultHeight(Real height) |
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293 | { |
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294 | mDefaultHeight = height; |
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295 | } |
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296 | //----------------------------------------------------------------------- |
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297 | Real BillboardSet::getDefaultHeight(void) const |
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298 | { |
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299 | return mDefaultHeight; |
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300 | } |
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301 | //----------------------------------------------------------------------- |
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302 | void BillboardSet::setMaterialName( const String& name ) |
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303 | { |
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304 | mMaterialName = name; |
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305 | |
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306 | mpMaterial = MaterialManager::getSingleton().getByName(name); |
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307 | |
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308 | if (mpMaterial.isNull()) |
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309 | OGRE_EXCEPT( Exception::ERR_ITEM_NOT_FOUND, "Could not find material " + name, |
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310 | "BillboardSet::setMaterialName" ); |
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311 | |
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312 | /* Ensure that the new material was loaded (will not load again if |
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313 | already loaded anyway) |
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314 | */ |
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315 | mpMaterial->load(); |
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316 | } |
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317 | |
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318 | //----------------------------------------------------------------------- |
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319 | const String& BillboardSet::getMaterialName(void) const |
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320 | { |
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321 | return mMaterialName; |
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322 | } |
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323 | |
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324 | //----------------------------------------------------------------------- |
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325 | void BillboardSet::_sortBillboards( Camera* cam) |
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326 | { |
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327 | switch (_getSortMode()) |
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328 | { |
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329 | case SM_DIRECTION: |
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330 | mRadixSorter.sort(mActiveBillboards, SortByDirectionFunctor(-mCamDir)); |
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331 | break; |
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332 | case SM_DISTANCE: |
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333 | mRadixSorter.sort(mActiveBillboards, SortByDistanceFunctor(mCamPos)); |
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334 | break; |
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335 | } |
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336 | } |
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337 | BillboardSet::SortByDirectionFunctor::SortByDirectionFunctor(const Vector3& dir) |
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338 | : sortDir(dir) |
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339 | { |
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340 | } |
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341 | float BillboardSet::SortByDirectionFunctor::operator()(Billboard* bill) const |
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342 | { |
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343 | return sortDir.dotProduct(bill->getPosition()); |
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344 | } |
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345 | BillboardSet::SortByDistanceFunctor::SortByDistanceFunctor(const Vector3& pos) |
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346 | : sortPos(pos) |
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347 | { |
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348 | } |
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349 | float BillboardSet::SortByDistanceFunctor::operator()(Billboard* bill) const |
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350 | { |
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351 | // Sort descending by squared distance |
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352 | return - (sortPos - bill->getPosition()).squaredLength(); |
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353 | } |
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354 | //----------------------------------------------------------------------- |
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355 | SortMode BillboardSet::_getSortMode(void) const |
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356 | { |
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357 | // Need to sort by distance if we're using accurate facing, or perpendicular billboard type. |
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358 | if (mAccurateFacing || |
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359 | mBillboardType == BBT_PERPENDICULAR_SELF || |
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360 | mBillboardType == BBT_PERPENDICULAR_COMMON) |
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361 | { |
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362 | return SM_DISTANCE; |
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363 | } |
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364 | else |
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365 | { |
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366 | return SM_DIRECTION; |
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367 | } |
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368 | } |
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369 | //----------------------------------------------------------------------- |
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370 | void BillboardSet::_notifyCurrentCamera( Camera* cam ) |
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371 | { |
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372 | MovableObject::_notifyCurrentCamera(cam); |
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373 | |
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374 | mCurrentCamera = cam; |
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375 | |
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376 | // Calculate camera orientation and position |
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377 | mCamQ = mCurrentCamera->getDerivedOrientation(); |
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378 | mCamPos = mCurrentCamera->getDerivedPosition(); |
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379 | if (!mWorldSpace) |
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380 | { |
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381 | // Default behaviour is that billboards are in local node space |
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382 | // so orientation of camera (in world space) must be reverse-transformed |
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383 | // into node space |
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384 | mCamQ = mParentNode->_getDerivedOrientation().UnitInverse() * mCamQ; |
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385 | mCamPos = mParentNode->_getDerivedOrientation().UnitInverse() * |
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386 | (mCamPos - mParentNode->_getDerivedPosition()) / mParentNode->_getDerivedScale(); |
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387 | } |
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388 | |
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389 | // Camera direction points down -Z |
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390 | mCamDir = mCamQ * Vector3::NEGATIVE_UNIT_Z; |
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391 | } |
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392 | //----------------------------------------------------------------------- |
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393 | void BillboardSet::beginBillboards(size_t numBillboards) |
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394 | { |
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395 | /* Generate the vertices for all the billboards relative to the camera |
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396 | Also take the opportunity to update the vertex colours |
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397 | May as well do it here to save on loops elsewhere |
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398 | */ |
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399 | |
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400 | /* NOTE: most engines generate world coordinates for the billboards |
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401 | directly, taking the world axes of the camera as offsets to the |
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402 | center points. I take a different approach, reverse-transforming |
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403 | the camera world axes into local billboard space. |
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404 | Why? |
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405 | Well, it's actually more efficient this way, because I only have to |
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406 | reverse-transform using the billboardset world matrix (inverse) |
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407 | once, from then on it's simple additions (assuming identically |
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408 | sized billboards). If I transformed every billboard center by it's |
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409 | world transform, that's a matrix multiplication per billboard |
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410 | instead. |
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411 | I leave the final transform to the render pipeline since that can |
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412 | use hardware TnL if it is available. |
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413 | */ |
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414 | |
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415 | // create vertex and index buffers if they haven't already been |
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416 | if(!mBuffersCreated) |
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417 | _createBuffers(); |
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418 | |
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419 | // Only calculate vertex offets et al if we're not point rendering |
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420 | if (!mPointRendering) |
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421 | { |
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422 | |
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423 | // Get offsets for origin type |
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424 | getParametricOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff); |
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425 | |
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426 | // Generate axes etc up-front if not oriented per-billboard |
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427 | if (mBillboardType != BBT_ORIENTED_SELF && |
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428 | mBillboardType != BBT_PERPENDICULAR_SELF && |
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429 | !(mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON)) |
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430 | { |
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431 | genBillboardAxes(&mCamX, &mCamY); |
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432 | |
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433 | /* If all billboards are the same size we can precalculate the |
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434 | offsets and just use '+' instead of '*' for each billboard, |
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435 | and it should be faster. |
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436 | */ |
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437 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff, |
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438 | mDefaultWidth, mDefaultHeight, mCamX, mCamY, mVOffset); |
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439 | |
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440 | } |
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441 | } |
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442 | |
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443 | // Init num visible |
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444 | mNumVisibleBillboards = 0; |
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445 | |
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446 | // Lock the buffer |
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447 | if (numBillboards) // optimal lock |
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448 | { |
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449 | // clamp to max |
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450 | numBillboards = std::min(mPoolSize, numBillboards); |
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451 | |
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452 | size_t billboardSize; |
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453 | if (mPointRendering) |
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454 | { |
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455 | // just one vertex per billboard (this also excludes texcoords) |
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456 | billboardSize = mMainBuf->getVertexSize(); |
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457 | } |
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458 | else |
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459 | { |
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460 | // 4 corners |
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461 | billboardSize = mMainBuf->getVertexSize() * 4; |
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462 | } |
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463 | assert (numBillboards * billboardSize <= mMainBuf->getSizeInBytes()); |
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464 | |
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465 | mLockPtr = static_cast<float*>( |
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466 | mMainBuf->lock(0, numBillboards * billboardSize, |
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467 | HardwareBuffer::HBL_DISCARD) ); |
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468 | } |
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469 | else // lock the entire thing |
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470 | mLockPtr = static_cast<float*>( |
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471 | mMainBuf->lock(HardwareBuffer::HBL_DISCARD) ); |
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472 | |
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473 | } |
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474 | //----------------------------------------------------------------------- |
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475 | void BillboardSet::injectBillboard(const Billboard& bb) |
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476 | { |
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477 | // Don't accept injections beyond pool size |
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478 | if (mNumVisibleBillboards == mPoolSize) return; |
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479 | |
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480 | // Skip if not visible (NB always true if not bounds checking individual billboards) |
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481 | if (!billboardVisible(mCurrentCamera, bb)) return; |
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482 | |
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483 | if (!mPointRendering && |
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484 | (mBillboardType == BBT_ORIENTED_SELF || |
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485 | mBillboardType == BBT_PERPENDICULAR_SELF || |
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486 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON))) |
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487 | { |
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488 | // Have to generate axes & offsets per billboard |
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489 | genBillboardAxes(&mCamX, &mCamY, &bb); |
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490 | } |
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491 | |
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492 | // If they're all the same size or we're point rendering |
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493 | if( mAllDefaultSize || mPointRendering) |
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494 | { |
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495 | /* No per-billboard checking, just blast through. |
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496 | Saves us an if clause every billboard which may |
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497 | make a difference. |
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498 | */ |
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499 | |
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500 | if (!mPointRendering && |
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501 | (mBillboardType == BBT_ORIENTED_SELF || |
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502 | mBillboardType == BBT_PERPENDICULAR_SELF || |
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503 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON))) |
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504 | { |
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505 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff, |
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506 | mDefaultWidth, mDefaultHeight, mCamX, mCamY, mVOffset); |
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507 | } |
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508 | genVertices(mVOffset, bb); |
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509 | } |
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510 | else // not all default size and not point rendering |
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511 | { |
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512 | Vector3 vOwnOffset[4]; |
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513 | // If it has own dimensions, or self-oriented, gen offsets |
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514 | if (mBillboardType == BBT_ORIENTED_SELF || |
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515 | mBillboardType == BBT_PERPENDICULAR_SELF || |
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516 | bb.mOwnDimensions || |
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517 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON)) |
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518 | { |
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519 | // Generate using own dimensions |
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520 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff, |
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521 | bb.mWidth, bb.mHeight, mCamX, mCamY, vOwnOffset); |
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522 | // Create vertex data |
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523 | genVertices(vOwnOffset, bb); |
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524 | } |
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525 | else // Use default dimension, already computed before the loop, for faster creation |
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526 | { |
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527 | genVertices(mVOffset, bb); |
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528 | } |
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529 | } |
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530 | // Increment visibles |
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531 | mNumVisibleBillboards++; |
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532 | } |
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533 | //----------------------------------------------------------------------- |
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534 | void BillboardSet::endBillboards(void) |
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535 | { |
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536 | mMainBuf->unlock(); |
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537 | } |
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538 | //----------------------------------------------------------------------- |
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539 | void BillboardSet::setBounds(const AxisAlignedBox& box, Real radius) |
---|
540 | { |
---|
541 | mAABB = box; |
---|
542 | mBoundingRadius = radius; |
---|
543 | } |
---|
544 | //----------------------------------------------------------------------- |
---|
545 | void BillboardSet::_updateBounds(void) |
---|
546 | { |
---|
547 | if (mActiveBillboards.empty()) |
---|
548 | { |
---|
549 | // No billboards, null bbox |
---|
550 | mAABB.setNull(); |
---|
551 | mBoundingRadius = 0.0f; |
---|
552 | } |
---|
553 | else |
---|
554 | { |
---|
555 | Real maxSqLen = -1.0f; |
---|
556 | |
---|
557 | Vector3 min(Math::POS_INFINITY, Math::POS_INFINITY, Math::POS_INFINITY); |
---|
558 | Vector3 max(Math::NEG_INFINITY, Math::NEG_INFINITY, Math::NEG_INFINITY); |
---|
559 | ActiveBillboardList::iterator i, iend; |
---|
560 | |
---|
561 | iend = mActiveBillboards.end(); |
---|
562 | for (i = mActiveBillboards.begin(); i != iend; ++i) |
---|
563 | { |
---|
564 | const Vector3& pos = (*i)->getPosition(); |
---|
565 | min.makeFloor(pos); |
---|
566 | max.makeCeil(pos); |
---|
567 | |
---|
568 | maxSqLen = std::max(maxSqLen, pos.squaredLength()); |
---|
569 | } |
---|
570 | // Adjust for billboard size |
---|
571 | Real adjust = std::max(mDefaultWidth, mDefaultHeight); |
---|
572 | Vector3 vecAdjust(adjust, adjust, adjust); |
---|
573 | min -= vecAdjust; |
---|
574 | max += vecAdjust; |
---|
575 | |
---|
576 | mAABB.setExtents(min, max); |
---|
577 | mBoundingRadius = Math::Sqrt(maxSqLen); |
---|
578 | |
---|
579 | } |
---|
580 | |
---|
581 | if (mParentNode) |
---|
582 | mParentNode->needUpdate(); |
---|
583 | |
---|
584 | } |
---|
585 | //----------------------------------------------------------------------- |
---|
586 | const AxisAlignedBox& BillboardSet::getBoundingBox(void) const |
---|
587 | { |
---|
588 | return mAABB; |
---|
589 | } |
---|
590 | |
---|
591 | //----------------------------------------------------------------------- |
---|
592 | void BillboardSet::_updateRenderQueue(RenderQueue* queue) |
---|
593 | { |
---|
594 | // If we're driving this from our own data, update geometry now |
---|
595 | if (!mExternalData) |
---|
596 | { |
---|
597 | if (mSortingEnabled) |
---|
598 | { |
---|
599 | _sortBillboards(mCurrentCamera); |
---|
600 | } |
---|
601 | |
---|
602 | beginBillboards(mActiveBillboards.size()); |
---|
603 | ActiveBillboardList::iterator it; |
---|
604 | for(it = mActiveBillboards.begin(); |
---|
605 | it != mActiveBillboards.end(); |
---|
606 | ++it ) |
---|
607 | { |
---|
608 | injectBillboard(*(*it)); |
---|
609 | } |
---|
610 | endBillboards(); |
---|
611 | } |
---|
612 | |
---|
613 | //only set the render queue group if it has been explicitly set. |
---|
614 | if( mRenderQueueIDSet ) |
---|
615 | { |
---|
616 | queue->addRenderable(this, mRenderQueueID); |
---|
617 | } else { |
---|
618 | queue->addRenderable(this); |
---|
619 | } |
---|
620 | |
---|
621 | } |
---|
622 | |
---|
623 | //----------------------------------------------------------------------- |
---|
624 | const MaterialPtr& BillboardSet::getMaterial(void) const |
---|
625 | { |
---|
626 | return mpMaterial; |
---|
627 | } |
---|
628 | |
---|
629 | //----------------------------------------------------------------------- |
---|
630 | void BillboardSet::getRenderOperation(RenderOperation& op) |
---|
631 | { |
---|
632 | op.vertexData = mVertexData; |
---|
633 | op.vertexData->vertexStart = 0; |
---|
634 | |
---|
635 | if (mPointRendering) |
---|
636 | { |
---|
637 | op.operationType = RenderOperation::OT_POINT_LIST; |
---|
638 | op.useIndexes = false; |
---|
639 | op.indexData = 0; |
---|
640 | op.vertexData->vertexCount = mNumVisibleBillboards; |
---|
641 | } |
---|
642 | else |
---|
643 | { |
---|
644 | op.operationType = RenderOperation::OT_TRIANGLE_LIST; |
---|
645 | op.useIndexes = true; |
---|
646 | |
---|
647 | op.vertexData->vertexCount = mNumVisibleBillboards * 4; |
---|
648 | |
---|
649 | op.indexData = mIndexData; |
---|
650 | op.indexData->indexCount = mNumVisibleBillboards * 6; |
---|
651 | op.indexData->indexStart = 0; |
---|
652 | } |
---|
653 | } |
---|
654 | |
---|
655 | //----------------------------------------------------------------------- |
---|
656 | void BillboardSet::getWorldTransforms( Matrix4* xform ) const |
---|
657 | { |
---|
658 | if (mWorldSpace) |
---|
659 | { |
---|
660 | *xform = Matrix4::IDENTITY; |
---|
661 | } |
---|
662 | else |
---|
663 | { |
---|
664 | *xform = _getParentNodeFullTransform(); |
---|
665 | } |
---|
666 | } |
---|
667 | |
---|
668 | //----------------------------------------------------------------------- |
---|
669 | const Quaternion& BillboardSet::getWorldOrientation(void) const |
---|
670 | { |
---|
671 | return mParentNode->_getDerivedOrientation(); |
---|
672 | } |
---|
673 | |
---|
674 | //----------------------------------------------------------------------- |
---|
675 | const Vector3& BillboardSet::getWorldPosition(void) const |
---|
676 | { |
---|
677 | return mParentNode->_getDerivedPosition(); |
---|
678 | } |
---|
679 | |
---|
680 | //----------------------------------------------------------------------- |
---|
681 | void BillboardSet::setAutoextend( bool autoextend ) |
---|
682 | { |
---|
683 | mAutoExtendPool = autoextend; |
---|
684 | } |
---|
685 | |
---|
686 | //----------------------------------------------------------------------- |
---|
687 | bool BillboardSet::getAutoextend(void) const |
---|
688 | { |
---|
689 | return mAutoExtendPool; |
---|
690 | } |
---|
691 | |
---|
692 | //----------------------------------------------------------------------- |
---|
693 | void BillboardSet::setSortingEnabled( bool sortenable ) |
---|
694 | { |
---|
695 | mSortingEnabled = sortenable; |
---|
696 | } |
---|
697 | |
---|
698 | //----------------------------------------------------------------------- |
---|
699 | bool BillboardSet::getSortingEnabled(void) const |
---|
700 | { |
---|
701 | return mSortingEnabled; |
---|
702 | } |
---|
703 | |
---|
704 | //----------------------------------------------------------------------- |
---|
705 | void BillboardSet::setPoolSize( size_t size ) |
---|
706 | { |
---|
707 | // If we're driving this from our own data, allocate billboards |
---|
708 | if (!mExternalData) |
---|
709 | { |
---|
710 | // Never shrink below size() |
---|
711 | size_t currSize = mBillboardPool.size(); |
---|
712 | if (currSize >= size) |
---|
713 | return; |
---|
714 | |
---|
715 | this->increasePool(size); |
---|
716 | |
---|
717 | for( size_t i = currSize; i < size; ++i ) |
---|
718 | { |
---|
719 | // Add new items to the queue |
---|
720 | mFreeBillboards.push_back( mBillboardPool[i] ); |
---|
721 | } |
---|
722 | } |
---|
723 | |
---|
724 | mPoolSize = size; |
---|
725 | |
---|
726 | _destroyBuffers(); |
---|
727 | } |
---|
728 | |
---|
729 | //----------------------------------------------------------------------- |
---|
730 | void BillboardSet::_createBuffers(void) |
---|
731 | { |
---|
732 | /* Allocate / reallocate vertex data |
---|
733 | Note that we allocate enough space for ALL the billboards in the pool, but only issue |
---|
734 | rendering operations for the sections relating to the active billboards |
---|
735 | */ |
---|
736 | |
---|
737 | /* Alloc positions ( 1 or 4 verts per billboard, 3 components ) |
---|
738 | colours ( 1 x RGBA per vertex ) |
---|
739 | indices ( 6 per billboard ( 2 tris ) if not point rendering ) |
---|
740 | tex. coords ( 2D coords, 1 or 4 per billboard ) |
---|
741 | */ |
---|
742 | |
---|
743 | // Warn if user requested an invalid setup |
---|
744 | // Do it here so it only appears once |
---|
745 | if (mPointRendering && mBillboardType != BBT_POINT) |
---|
746 | { |
---|
747 | |
---|
748 | LogManager::getSingleton().logMessage("Warning: BillboardSet " + |
---|
749 | mName + " has point rendering enabled but is using a type " |
---|
750 | "other than BBT_POINT, this may not give you the results you " |
---|
751 | "expect."); |
---|
752 | } |
---|
753 | |
---|
754 | mVertexData = new VertexData(); |
---|
755 | if (mPointRendering) |
---|
756 | mVertexData->vertexCount = mPoolSize; |
---|
757 | else |
---|
758 | mVertexData->vertexCount = mPoolSize * 4; |
---|
759 | |
---|
760 | mVertexData->vertexStart = 0; |
---|
761 | |
---|
762 | // Vertex declaration |
---|
763 | VertexDeclaration* decl = mVertexData->vertexDeclaration; |
---|
764 | VertexBufferBinding* binding = mVertexData->vertexBufferBinding; |
---|
765 | |
---|
766 | size_t offset = 0; |
---|
767 | decl->addElement(0, offset, VET_FLOAT3, VES_POSITION); |
---|
768 | offset += VertexElement::getTypeSize(VET_FLOAT3); |
---|
769 | decl->addElement(0, offset, VET_COLOUR, VES_DIFFUSE); |
---|
770 | offset += VertexElement::getTypeSize(VET_COLOUR); |
---|
771 | // Texture coords irrelevant when enabled point rendering (generated |
---|
772 | // in point sprite mode, and unused in standard point mode) |
---|
773 | if (!mPointRendering) |
---|
774 | { |
---|
775 | decl->addElement(0, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0); |
---|
776 | } |
---|
777 | |
---|
778 | mMainBuf = |
---|
779 | HardwareBufferManager::getSingleton().createVertexBuffer( |
---|
780 | decl->getVertexSize(0), |
---|
781 | mVertexData->vertexCount, |
---|
782 | HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE); |
---|
783 | // bind position and diffuses |
---|
784 | binding->setBinding(0, mMainBuf); |
---|
785 | |
---|
786 | if (!mPointRendering) |
---|
787 | { |
---|
788 | mIndexData = new IndexData(); |
---|
789 | mIndexData->indexStart = 0; |
---|
790 | mIndexData->indexCount = mPoolSize * 6; |
---|
791 | |
---|
792 | mIndexData->indexBuffer = HardwareBufferManager::getSingleton(). |
---|
793 | createIndexBuffer(HardwareIndexBuffer::IT_16BIT, |
---|
794 | mIndexData->indexCount, |
---|
795 | HardwareBuffer::HBU_STATIC_WRITE_ONLY); |
---|
796 | |
---|
797 | /* Create indexes (will be the same every frame) |
---|
798 | Using indexes because it means 1/3 less vertex transforms (4 instead of 6) |
---|
799 | |
---|
800 | Billboard layout relative to camera: |
---|
801 | |
---|
802 | 0-----1 |
---|
803 | | /| |
---|
804 | | / | |
---|
805 | |/ | |
---|
806 | 2-----3 |
---|
807 | */ |
---|
808 | |
---|
809 | ushort* pIdx = static_cast<ushort*>( |
---|
810 | mIndexData->indexBuffer->lock(0, |
---|
811 | mIndexData->indexBuffer->getSizeInBytes(), |
---|
812 | HardwareBuffer::HBL_DISCARD) ); |
---|
813 | |
---|
814 | for( |
---|
815 | size_t idx, idxOff, bboard = 0; |
---|
816 | bboard < mPoolSize; |
---|
817 | ++bboard ) |
---|
818 | { |
---|
819 | // Do indexes |
---|
820 | idx = bboard * 6; |
---|
821 | idxOff = bboard * 4; |
---|
822 | |
---|
823 | pIdx[idx] = static_cast<unsigned short>(idxOff); // + 0;, for clarity |
---|
824 | pIdx[idx+1] = static_cast<unsigned short>(idxOff + 2); |
---|
825 | pIdx[idx+2] = static_cast<unsigned short>(idxOff + 1); |
---|
826 | pIdx[idx+3] = static_cast<unsigned short>(idxOff + 1); |
---|
827 | pIdx[idx+4] = static_cast<unsigned short>(idxOff + 2); |
---|
828 | pIdx[idx+5] = static_cast<unsigned short>(idxOff + 3); |
---|
829 | |
---|
830 | } |
---|
831 | |
---|
832 | mIndexData->indexBuffer->unlock(); |
---|
833 | } |
---|
834 | mBuffersCreated = true; |
---|
835 | } |
---|
836 | //----------------------------------------------------------------------- |
---|
837 | void BillboardSet::_destroyBuffers(void) |
---|
838 | { |
---|
839 | if (mVertexData) |
---|
840 | { |
---|
841 | delete mVertexData; |
---|
842 | mVertexData = 0; |
---|
843 | } |
---|
844 | if (mIndexData) |
---|
845 | { |
---|
846 | delete mIndexData; |
---|
847 | mIndexData = 0; |
---|
848 | } |
---|
849 | |
---|
850 | mMainBuf.setNull(); |
---|
851 | |
---|
852 | mBuffersCreated = false; |
---|
853 | |
---|
854 | } |
---|
855 | //----------------------------------------------------------------------- |
---|
856 | unsigned int BillboardSet::getPoolSize(void) const |
---|
857 | { |
---|
858 | return static_cast< unsigned int >( mBillboardPool.size() ); |
---|
859 | } |
---|
860 | |
---|
861 | //----------------------------------------------------------------------- |
---|
862 | void BillboardSet::_notifyBillboardResized(void) |
---|
863 | { |
---|
864 | mAllDefaultSize = false; |
---|
865 | } |
---|
866 | |
---|
867 | //----------------------------------------------------------------------- |
---|
868 | void BillboardSet::_notifyBillboardRotated(void) |
---|
869 | { |
---|
870 | mAllDefaultRotation = false; |
---|
871 | } |
---|
872 | |
---|
873 | //----------------------------------------------------------------------- |
---|
874 | void BillboardSet::getParametricOffsets( |
---|
875 | Real& left, Real& right, Real& top, Real& bottom ) |
---|
876 | { |
---|
877 | switch( mOriginType ) |
---|
878 | { |
---|
879 | case BBO_TOP_LEFT: |
---|
880 | left = 0.0f; |
---|
881 | right = 1.0f; |
---|
882 | top = 0.0f; |
---|
883 | bottom = -1.0f; |
---|
884 | break; |
---|
885 | |
---|
886 | case BBO_TOP_CENTER: |
---|
887 | left = -0.5f; |
---|
888 | right = 0.5f; |
---|
889 | top = 0.0f; |
---|
890 | bottom = -1.0f; |
---|
891 | break; |
---|
892 | |
---|
893 | case BBO_TOP_RIGHT: |
---|
894 | left = -1.0f; |
---|
895 | right = 0.0f; |
---|
896 | top = 0.0f; |
---|
897 | bottom = -1.0f; |
---|
898 | break; |
---|
899 | |
---|
900 | case BBO_CENTER_LEFT: |
---|
901 | left = 0.0f; |
---|
902 | right = 1.0f; |
---|
903 | top = 0.5f; |
---|
904 | bottom = -0.5f; |
---|
905 | break; |
---|
906 | |
---|
907 | case BBO_CENTER: |
---|
908 | left = -0.5f; |
---|
909 | right = 0.5f; |
---|
910 | top = 0.5f; |
---|
911 | bottom = -0.5f; |
---|
912 | break; |
---|
913 | |
---|
914 | case BBO_CENTER_RIGHT: |
---|
915 | left = -1.0f; |
---|
916 | right = 0.0f; |
---|
917 | top = 0.5f; |
---|
918 | bottom = -0.5f; |
---|
919 | break; |
---|
920 | |
---|
921 | case BBO_BOTTOM_LEFT: |
---|
922 | left = 0.0f; |
---|
923 | right = 1.0f; |
---|
924 | top = 1.0f; |
---|
925 | bottom = 0.0f; |
---|
926 | break; |
---|
927 | |
---|
928 | case BBO_BOTTOM_CENTER: |
---|
929 | left = -0.5f; |
---|
930 | right = 0.5f; |
---|
931 | top = 1.0f; |
---|
932 | bottom = 0.0f; |
---|
933 | break; |
---|
934 | |
---|
935 | case BBO_BOTTOM_RIGHT: |
---|
936 | left = -1.0f; |
---|
937 | right = 0.0f; |
---|
938 | top = 1.0f; |
---|
939 | bottom = 0.0f; |
---|
940 | break; |
---|
941 | } |
---|
942 | } |
---|
943 | //----------------------------------------------------------------------- |
---|
944 | bool BillboardSet::getCullIndividually(void) const |
---|
945 | { |
---|
946 | return mCullIndividual; |
---|
947 | } |
---|
948 | //----------------------------------------------------------------------- |
---|
949 | void BillboardSet::setCullIndividually(bool cullIndividual) |
---|
950 | { |
---|
951 | mCullIndividual = cullIndividual; |
---|
952 | } |
---|
953 | //----------------------------------------------------------------------- |
---|
954 | bool BillboardSet::billboardVisible(Camera* cam, const Billboard& bill) |
---|
955 | { |
---|
956 | // Return always visible if not culling individually |
---|
957 | if (!mCullIndividual) return true; |
---|
958 | |
---|
959 | // Cull based on sphere (have to transform less) |
---|
960 | Sphere sph; |
---|
961 | Matrix4 xworld; |
---|
962 | |
---|
963 | getWorldTransforms(&xworld); |
---|
964 | |
---|
965 | sph.setCenter(xworld.transformAffine(bill.mPosition)); |
---|
966 | |
---|
967 | if (bill.mOwnDimensions) |
---|
968 | { |
---|
969 | sph.setRadius(std::max(bill.mWidth, bill.mHeight)); |
---|
970 | } |
---|
971 | else |
---|
972 | { |
---|
973 | sph.setRadius(std::max(mDefaultWidth, mDefaultHeight)); |
---|
974 | } |
---|
975 | |
---|
976 | return cam->isVisible(sph); |
---|
977 | |
---|
978 | } |
---|
979 | //----------------------------------------------------------------------- |
---|
980 | void BillboardSet::increasePool(size_t size) |
---|
981 | { |
---|
982 | size_t oldSize = mBillboardPool.size(); |
---|
983 | |
---|
984 | // Increase size |
---|
985 | mBillboardPool.reserve(size); |
---|
986 | mBillboardPool.resize(size); |
---|
987 | |
---|
988 | // Create new billboards |
---|
989 | for( size_t i = oldSize; i < size; ++i ) |
---|
990 | mBillboardPool[i] = new Billboard(); |
---|
991 | |
---|
992 | } |
---|
993 | //----------------------------------------------------------------------- |
---|
994 | void BillboardSet::genBillboardAxes(Vector3* pX, Vector3 *pY, const Billboard* bb) |
---|
995 | { |
---|
996 | // If we're using accurate facing, recalculate camera direction per BB |
---|
997 | if (mAccurateFacing && |
---|
998 | (mBillboardType == BBT_POINT || |
---|
999 | mBillboardType == BBT_ORIENTED_COMMON || |
---|
1000 | mBillboardType == BBT_ORIENTED_SELF)) |
---|
1001 | { |
---|
1002 | // cam -> bb direction |
---|
1003 | mCamDir = bb->mPosition - mCamPos; |
---|
1004 | mCamDir.normalise(); |
---|
1005 | } |
---|
1006 | |
---|
1007 | |
---|
1008 | switch (mBillboardType) |
---|
1009 | { |
---|
1010 | case BBT_POINT: |
---|
1011 | if (mAccurateFacing) |
---|
1012 | { |
---|
1013 | // Point billboards will have 'up' based on but not equal to cameras |
---|
1014 | // Use pY temporarily to avoid allocation |
---|
1015 | *pY = mCamQ * Vector3::UNIT_Y; |
---|
1016 | *pX = mCamDir.crossProduct(*pY); |
---|
1017 | pX->normalise(); |
---|
1018 | *pY = pX->crossProduct(mCamDir); // both normalised already |
---|
1019 | } |
---|
1020 | else |
---|
1021 | { |
---|
1022 | // Get camera axes for X and Y (depth is irrelevant) |
---|
1023 | *pX = mCamQ * Vector3::UNIT_X; |
---|
1024 | *pY = mCamQ * Vector3::UNIT_Y; |
---|
1025 | } |
---|
1026 | break; |
---|
1027 | |
---|
1028 | case BBT_ORIENTED_COMMON: |
---|
1029 | // Y-axis is common direction |
---|
1030 | // X-axis is cross with camera direction |
---|
1031 | *pY = mCommonDirection; |
---|
1032 | *pX = mCamDir.crossProduct(*pY); |
---|
1033 | pX->normalise(); |
---|
1034 | break; |
---|
1035 | |
---|
1036 | case BBT_ORIENTED_SELF: |
---|
1037 | // Y-axis is direction |
---|
1038 | // X-axis is cross with camera direction |
---|
1039 | // Scale direction first |
---|
1040 | *pY = bb->mDirection; |
---|
1041 | *pX = mCamDir.crossProduct(*pY); |
---|
1042 | pX->normalise(); |
---|
1043 | break; |
---|
1044 | |
---|
1045 | case BBT_PERPENDICULAR_COMMON: |
---|
1046 | // X-axis is up-vector cross common direction |
---|
1047 | // Y-axis is common direction cross X-axis |
---|
1048 | *pX = mCommonUpVector.crossProduct(mCommonDirection); |
---|
1049 | *pY = mCommonDirection.crossProduct(*pX); |
---|
1050 | break; |
---|
1051 | |
---|
1052 | case BBT_PERPENDICULAR_SELF: |
---|
1053 | // X-axis is up-vector cross own direction |
---|
1054 | // Y-axis is own direction cross X-axis |
---|
1055 | *pX = mCommonUpVector.crossProduct(bb->mDirection); |
---|
1056 | pX->normalise(); |
---|
1057 | *pY = bb->mDirection.crossProduct(*pX); // both should be normalised |
---|
1058 | break; |
---|
1059 | } |
---|
1060 | |
---|
1061 | } |
---|
1062 | //----------------------------------------------------------------------- |
---|
1063 | void BillboardSet::setBillboardType(BillboardType bbt) |
---|
1064 | { |
---|
1065 | mBillboardType = bbt; |
---|
1066 | } |
---|
1067 | //----------------------------------------------------------------------- |
---|
1068 | BillboardType BillboardSet::getBillboardType(void) const |
---|
1069 | { |
---|
1070 | return mBillboardType; |
---|
1071 | } |
---|
1072 | //----------------------------------------------------------------------- |
---|
1073 | void BillboardSet::setCommonDirection(const Vector3& vec) |
---|
1074 | { |
---|
1075 | mCommonDirection = vec; |
---|
1076 | } |
---|
1077 | //----------------------------------------------------------------------- |
---|
1078 | const Vector3& BillboardSet::getCommonDirection(void) const |
---|
1079 | { |
---|
1080 | return mCommonDirection; |
---|
1081 | } |
---|
1082 | //----------------------------------------------------------------------- |
---|
1083 | void BillboardSet::setCommonUpVector(const Vector3& vec) |
---|
1084 | { |
---|
1085 | mCommonUpVector = vec; |
---|
1086 | } |
---|
1087 | //----------------------------------------------------------------------- |
---|
1088 | const Vector3& BillboardSet::getCommonUpVector(void) const |
---|
1089 | { |
---|
1090 | return mCommonUpVector; |
---|
1091 | } |
---|
1092 | //----------------------------------------------------------------------- |
---|
1093 | uint32 BillboardSet::getTypeFlags(void) const |
---|
1094 | { |
---|
1095 | return SceneManager::FX_TYPE_MASK; |
---|
1096 | } |
---|
1097 | //----------------------------------------------------------------------- |
---|
1098 | void BillboardSet::genVertices( |
---|
1099 | const Vector3* const offsets, const Billboard& bb) |
---|
1100 | { |
---|
1101 | RGBA colour; |
---|
1102 | Root::getSingleton().convertColourValue(bb.mColour, &colour); |
---|
1103 | RGBA* pCol; |
---|
1104 | |
---|
1105 | // Texcoords |
---|
1106 | assert( bb.mUseTexcoordRect || bb.mTexcoordIndex < mTextureCoords.size() ); |
---|
1107 | const Ogre::FloatRect & r = |
---|
1108 | bb.mUseTexcoordRect ? bb.mTexcoordRect : mTextureCoords[bb.mTexcoordIndex]; |
---|
1109 | |
---|
1110 | if (mPointRendering) |
---|
1111 | { |
---|
1112 | // Single vertex per billboard, ignore offsets |
---|
1113 | // position |
---|
1114 | *mLockPtr++ = bb.mPosition.x; |
---|
1115 | *mLockPtr++ = bb.mPosition.y; |
---|
1116 | *mLockPtr++ = bb.mPosition.z; |
---|
1117 | // Colour |
---|
1118 | // Convert float* to RGBA* |
---|
1119 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1120 | *pCol++ = colour; |
---|
1121 | // Update lock pointer |
---|
1122 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1123 | // No texture coords in point rendering |
---|
1124 | } |
---|
1125 | else if (mAllDefaultRotation || bb.mRotation == Radian(0)) |
---|
1126 | { |
---|
1127 | // Left-top |
---|
1128 | // Positions |
---|
1129 | *mLockPtr++ = offsets[0].x + bb.mPosition.x; |
---|
1130 | *mLockPtr++ = offsets[0].y + bb.mPosition.y; |
---|
1131 | *mLockPtr++ = offsets[0].z + bb.mPosition.z; |
---|
1132 | // Colour |
---|
1133 | // Convert float* to RGBA* |
---|
1134 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1135 | *pCol++ = colour; |
---|
1136 | // Update lock pointer |
---|
1137 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1138 | // Texture coords |
---|
1139 | *mLockPtr++ = r.left; |
---|
1140 | *mLockPtr++ = r.top; |
---|
1141 | |
---|
1142 | // Right-top |
---|
1143 | // Positions |
---|
1144 | *mLockPtr++ = offsets[1].x + bb.mPosition.x; |
---|
1145 | *mLockPtr++ = offsets[1].y + bb.mPosition.y; |
---|
1146 | *mLockPtr++ = offsets[1].z + bb.mPosition.z; |
---|
1147 | // Colour |
---|
1148 | // Convert float* to RGBA* |
---|
1149 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1150 | *pCol++ = colour; |
---|
1151 | // Update lock pointer |
---|
1152 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1153 | // Texture coords |
---|
1154 | *mLockPtr++ = r.right; |
---|
1155 | *mLockPtr++ = r.top; |
---|
1156 | |
---|
1157 | // Left-bottom |
---|
1158 | // Positions |
---|
1159 | *mLockPtr++ = offsets[2].x + bb.mPosition.x; |
---|
1160 | *mLockPtr++ = offsets[2].y + bb.mPosition.y; |
---|
1161 | *mLockPtr++ = offsets[2].z + bb.mPosition.z; |
---|
1162 | // Colour |
---|
1163 | // Convert float* to RGBA* |
---|
1164 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1165 | *pCol++ = colour; |
---|
1166 | // Update lock pointer |
---|
1167 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1168 | // Texture coords |
---|
1169 | *mLockPtr++ = r.left; |
---|
1170 | *mLockPtr++ = r.bottom; |
---|
1171 | |
---|
1172 | // Right-bottom |
---|
1173 | // Positions |
---|
1174 | *mLockPtr++ = offsets[3].x + bb.mPosition.x; |
---|
1175 | *mLockPtr++ = offsets[3].y + bb.mPosition.y; |
---|
1176 | *mLockPtr++ = offsets[3].z + bb.mPosition.z; |
---|
1177 | // Colour |
---|
1178 | // Convert float* to RGBA* |
---|
1179 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1180 | *pCol++ = colour; |
---|
1181 | // Update lock pointer |
---|
1182 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1183 | // Texture coords |
---|
1184 | *mLockPtr++ = r.right; |
---|
1185 | *mLockPtr++ = r.bottom; |
---|
1186 | } |
---|
1187 | else if (mRotationType == BBR_VERTEX) |
---|
1188 | { |
---|
1189 | // TODO: Cache axis when billboard type is BBT_POINT or BBT_PERPENDICULAR_COMMON |
---|
1190 | Vector3 axis = (offsets[3] - offsets[0]).crossProduct(offsets[2] - offsets[1]).normalisedCopy(); |
---|
1191 | |
---|
1192 | Quaternion rotation(bb.mRotation, axis); |
---|
1193 | Vector3 pt; |
---|
1194 | |
---|
1195 | // Left-top |
---|
1196 | // Positions |
---|
1197 | pt = rotation * offsets[0]; |
---|
1198 | *mLockPtr++ = pt.x + bb.mPosition.x; |
---|
1199 | *mLockPtr++ = pt.y + bb.mPosition.y; |
---|
1200 | *mLockPtr++ = pt.z + bb.mPosition.z; |
---|
1201 | // Colour |
---|
1202 | // Convert float* to RGBA* |
---|
1203 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1204 | *pCol++ = colour; |
---|
1205 | // Update lock pointer |
---|
1206 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1207 | // Texture coords |
---|
1208 | *mLockPtr++ = r.left; |
---|
1209 | *mLockPtr++ = r.top; |
---|
1210 | |
---|
1211 | // Right-top |
---|
1212 | // Positions |
---|
1213 | pt = rotation * offsets[1]; |
---|
1214 | *mLockPtr++ = pt.x + bb.mPosition.x; |
---|
1215 | *mLockPtr++ = pt.y + bb.mPosition.y; |
---|
1216 | *mLockPtr++ = pt.z + bb.mPosition.z; |
---|
1217 | // Colour |
---|
1218 | // Convert float* to RGBA* |
---|
1219 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1220 | *pCol++ = colour; |
---|
1221 | // Update lock pointer |
---|
1222 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1223 | // Texture coords |
---|
1224 | *mLockPtr++ = r.right; |
---|
1225 | *mLockPtr++ = r.top; |
---|
1226 | |
---|
1227 | // Left-bottom |
---|
1228 | // Positions |
---|
1229 | pt = rotation * offsets[2]; |
---|
1230 | *mLockPtr++ = pt.x + bb.mPosition.x; |
---|
1231 | *mLockPtr++ = pt.y + bb.mPosition.y; |
---|
1232 | *mLockPtr++ = pt.z + bb.mPosition.z; |
---|
1233 | // Colour |
---|
1234 | // Convert float* to RGBA* |
---|
1235 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1236 | *pCol++ = colour; |
---|
1237 | // Update lock pointer |
---|
1238 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1239 | // Texture coords |
---|
1240 | *mLockPtr++ = r.left; |
---|
1241 | *mLockPtr++ = r.bottom; |
---|
1242 | |
---|
1243 | // Right-bottom |
---|
1244 | // Positions |
---|
1245 | pt = rotation * offsets[3]; |
---|
1246 | *mLockPtr++ = pt.x + bb.mPosition.x; |
---|
1247 | *mLockPtr++ = pt.y + bb.mPosition.y; |
---|
1248 | *mLockPtr++ = pt.z + bb.mPosition.z; |
---|
1249 | // Colour |
---|
1250 | // Convert float* to RGBA* |
---|
1251 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1252 | *pCol++ = colour; |
---|
1253 | // Update lock pointer |
---|
1254 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1255 | // Texture coords |
---|
1256 | *mLockPtr++ = r.right; |
---|
1257 | *mLockPtr++ = r.bottom; |
---|
1258 | } |
---|
1259 | else |
---|
1260 | { |
---|
1261 | const Real cos_rot ( Math::Cos(bb.mRotation) ); |
---|
1262 | const Real sin_rot ( Math::Sin(bb.mRotation) ); |
---|
1263 | |
---|
1264 | float width = (r.right-r.left)/2; |
---|
1265 | float height = (r.bottom-r.top)/2; |
---|
1266 | float mid_u = r.left+width; |
---|
1267 | float mid_v = r.top+height; |
---|
1268 | |
---|
1269 | float cos_rot_w = cos_rot * width; |
---|
1270 | float cos_rot_h = cos_rot * height; |
---|
1271 | float sin_rot_w = sin_rot * width; |
---|
1272 | float sin_rot_h = sin_rot * height; |
---|
1273 | |
---|
1274 | // Left-top |
---|
1275 | // Positions |
---|
1276 | *mLockPtr++ = offsets[0].x + bb.mPosition.x; |
---|
1277 | *mLockPtr++ = offsets[0].y + bb.mPosition.y; |
---|
1278 | *mLockPtr++ = offsets[0].z + bb.mPosition.z; |
---|
1279 | // Colour |
---|
1280 | // Convert float* to RGBA* |
---|
1281 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1282 | *pCol++ = colour; |
---|
1283 | // Update lock pointer |
---|
1284 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1285 | // Texture coords |
---|
1286 | *mLockPtr++ = mid_u - cos_rot_w + sin_rot_h; |
---|
1287 | *mLockPtr++ = mid_v - sin_rot_w - cos_rot_h; |
---|
1288 | |
---|
1289 | // Right-top |
---|
1290 | // Positions |
---|
1291 | *mLockPtr++ = offsets[1].x + bb.mPosition.x; |
---|
1292 | *mLockPtr++ = offsets[1].y + bb.mPosition.y; |
---|
1293 | *mLockPtr++ = offsets[1].z + bb.mPosition.z; |
---|
1294 | // Colour |
---|
1295 | // Convert float* to RGBA* |
---|
1296 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1297 | *pCol++ = colour; |
---|
1298 | // Update lock pointer |
---|
1299 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1300 | // Texture coords |
---|
1301 | *mLockPtr++ = mid_u + cos_rot_w + sin_rot_h; |
---|
1302 | *mLockPtr++ = mid_v + sin_rot_w - cos_rot_h; |
---|
1303 | |
---|
1304 | // Left-bottom |
---|
1305 | // Positions |
---|
1306 | *mLockPtr++ = offsets[2].x + bb.mPosition.x; |
---|
1307 | *mLockPtr++ = offsets[2].y + bb.mPosition.y; |
---|
1308 | *mLockPtr++ = offsets[2].z + bb.mPosition.z; |
---|
1309 | // Colour |
---|
1310 | // Convert float* to RGBA* |
---|
1311 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1312 | *pCol++ = colour; |
---|
1313 | // Update lock pointer |
---|
1314 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1315 | // Texture coords |
---|
1316 | *mLockPtr++ = mid_u - cos_rot_w - sin_rot_h; |
---|
1317 | *mLockPtr++ = mid_v - sin_rot_w + cos_rot_h; |
---|
1318 | |
---|
1319 | // Right-bottom |
---|
1320 | // Positions |
---|
1321 | *mLockPtr++ = offsets[3].x + bb.mPosition.x; |
---|
1322 | *mLockPtr++ = offsets[3].y + bb.mPosition.y; |
---|
1323 | *mLockPtr++ = offsets[3].z + bb.mPosition.z; |
---|
1324 | // Colour |
---|
1325 | // Convert float* to RGBA* |
---|
1326 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr)); |
---|
1327 | *pCol++ = colour; |
---|
1328 | // Update lock pointer |
---|
1329 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol)); |
---|
1330 | // Texture coords |
---|
1331 | *mLockPtr++ = mid_u + cos_rot_w - sin_rot_h; |
---|
1332 | *mLockPtr++ = mid_v + sin_rot_w + cos_rot_h; |
---|
1333 | } |
---|
1334 | |
---|
1335 | } |
---|
1336 | //----------------------------------------------------------------------- |
---|
1337 | void BillboardSet::genVertOffsets(Real inleft, Real inright, Real intop, Real inbottom, |
---|
1338 | Real width, Real height, const Vector3& x, const Vector3& y, Vector3* pDestVec) |
---|
1339 | { |
---|
1340 | Vector3 vLeftOff, vRightOff, vTopOff, vBottomOff; |
---|
1341 | /* Calculate default offsets. Scale the axes by |
---|
1342 | parametric offset and dimensions, ready to be added to |
---|
1343 | positions. |
---|
1344 | */ |
---|
1345 | |
---|
1346 | vLeftOff = x * ( inleft * width ); |
---|
1347 | vRightOff = x * ( inright * width ); |
---|
1348 | vTopOff = y * ( intop * height ); |
---|
1349 | vBottomOff = y * ( inbottom * height ); |
---|
1350 | |
---|
1351 | // Make final offsets to vertex positions |
---|
1352 | pDestVec[0] = vLeftOff + vTopOff; |
---|
1353 | pDestVec[1] = vRightOff + vTopOff; |
---|
1354 | pDestVec[2] = vLeftOff + vBottomOff; |
---|
1355 | pDestVec[3] = vRightOff + vBottomOff; |
---|
1356 | |
---|
1357 | } |
---|
1358 | //----------------------------------------------------------------------- |
---|
1359 | const String& BillboardSet::getMovableType(void) const |
---|
1360 | { |
---|
1361 | return BillboardSetFactory::FACTORY_TYPE_NAME; |
---|
1362 | } |
---|
1363 | //----------------------------------------------------------------------- |
---|
1364 | Real BillboardSet::getSquaredViewDepth(const Camera* const cam) const |
---|
1365 | { |
---|
1366 | assert(mParentNode); |
---|
1367 | return mParentNode->getSquaredViewDepth(cam); |
---|
1368 | } |
---|
1369 | //----------------------------------------------------------------------- |
---|
1370 | Real BillboardSet::getBoundingRadius(void) const |
---|
1371 | { |
---|
1372 | return mBoundingRadius; |
---|
1373 | } |
---|
1374 | //----------------------------------------------------------------------- |
---|
1375 | const LightList& BillboardSet::getLights(void) const |
---|
1376 | { |
---|
1377 | // It's actually quite unlikely that this will be called, |
---|
1378 | // because most billboards are unlit, but here we go anyway |
---|
1379 | return queryLights(); |
---|
1380 | } |
---|
1381 | |
---|
1382 | void BillboardSet::setTextureCoords( Ogre::FloatRect const * coords, uint16 numCoords ) |
---|
1383 | { |
---|
1384 | if( !numCoords || !coords ) { |
---|
1385 | setTextureStacksAndSlices( 1, 1 ); |
---|
1386 | return; |
---|
1387 | } |
---|
1388 | // clear out any previous allocation (as vectors may not shrink) |
---|
1389 | TextureCoordSets().swap( mTextureCoords ); |
---|
1390 | // make room |
---|
1391 | mTextureCoords.resize( numCoords ); |
---|
1392 | // copy in data |
---|
1393 | std::copy( coords, coords+numCoords, &mTextureCoords.front() ); |
---|
1394 | } |
---|
1395 | |
---|
1396 | void BillboardSet::setTextureStacksAndSlices( uchar stacks, uchar slices ) |
---|
1397 | { |
---|
1398 | if( stacks == 0 ) stacks = 1; |
---|
1399 | if( slices == 0 ) slices = 1; |
---|
1400 | // clear out any previous allocation (as vectors may not shrink) |
---|
1401 | TextureCoordSets().swap( mTextureCoords ); |
---|
1402 | // make room |
---|
1403 | mTextureCoords.resize( (size_t)stacks * slices ); |
---|
1404 | unsigned int coordIndex = 0; |
---|
1405 | // spread the U and V coordinates across the rects |
---|
1406 | for( uint v = 0; v < stacks; ++v ) { |
---|
1407 | // (float)X / X is guaranteed to be == 1.0f for X up to 8 million, so |
---|
1408 | // our range of 1..256 is quite enough to guarantee perfect coverage. |
---|
1409 | float top = (float)v / (float)stacks; |
---|
1410 | float bottom = ((float)v + 1) / (float)stacks; |
---|
1411 | for( uint u = 0; u < slices; ++u ) { |
---|
1412 | Ogre::FloatRect & r = mTextureCoords[coordIndex]; |
---|
1413 | r.left = (float)u / (float)slices; |
---|
1414 | r.bottom = bottom; |
---|
1415 | r.right = ((float)u + 1) / (float)slices; |
---|
1416 | r.top = top; |
---|
1417 | ++coordIndex; |
---|
1418 | } |
---|
1419 | } |
---|
1420 | assert( coordIndex == (size_t)stacks * slices ); |
---|
1421 | } |
---|
1422 | //----------------------------------------------------------------------- |
---|
1423 | Ogre::FloatRect const * BillboardSet::getTextureCoords( uint16 * oNumCoords ) |
---|
1424 | { |
---|
1425 | *oNumCoords = (uint16)mTextureCoords.size(); |
---|
1426 | // std::vector<> is guaranteed to be contiguous |
---|
1427 | return &mTextureCoords.front(); |
---|
1428 | } |
---|
1429 | //----------------------------------------------------------------------- |
---|
1430 | void BillboardSet::setPointRenderingEnabled(bool enabled) |
---|
1431 | { |
---|
1432 | // Override point rendering if not supported |
---|
1433 | if (enabled && !Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_POINT_SPRITES)) |
---|
1434 | { |
---|
1435 | enabled = false; |
---|
1436 | } |
---|
1437 | |
---|
1438 | if (enabled != mPointRendering) |
---|
1439 | { |
---|
1440 | mPointRendering = enabled; |
---|
1441 | // Different buffer structure (1 or 4 verts per billboard) |
---|
1442 | _destroyBuffers(); |
---|
1443 | } |
---|
1444 | } |
---|
1445 | //----------------------------------------------------------------------- |
---|
1446 | //----------------------------------------------------------------------- |
---|
1447 | String BillboardSetFactory::FACTORY_TYPE_NAME = "BillboardSet"; |
---|
1448 | //----------------------------------------------------------------------- |
---|
1449 | const String& BillboardSetFactory::getType(void) const |
---|
1450 | { |
---|
1451 | return FACTORY_TYPE_NAME; |
---|
1452 | } |
---|
1453 | //----------------------------------------------------------------------- |
---|
1454 | MovableObject* BillboardSetFactory::createInstanceImpl( const String& name, |
---|
1455 | const NameValuePairList* params) |
---|
1456 | { |
---|
1457 | // may have parameters |
---|
1458 | bool externalData = false; |
---|
1459 | unsigned int poolSize = 0; |
---|
1460 | |
---|
1461 | if (params != 0) |
---|
1462 | { |
---|
1463 | NameValuePairList::const_iterator ni = params->find("poolSize"); |
---|
1464 | if (ni != params->end()) |
---|
1465 | { |
---|
1466 | poolSize = StringConverter::parseUnsignedInt(ni->second); |
---|
1467 | } |
---|
1468 | ni = params->find("externalData"); |
---|
1469 | if (ni != params->end()) |
---|
1470 | { |
---|
1471 | externalData = StringConverter::parseBool(ni->second); |
---|
1472 | } |
---|
1473 | |
---|
1474 | } |
---|
1475 | |
---|
1476 | if (poolSize > 0) |
---|
1477 | { |
---|
1478 | return new BillboardSet(name, poolSize, externalData); |
---|
1479 | } |
---|
1480 | else |
---|
1481 | { |
---|
1482 | return new BillboardSet(name); |
---|
1483 | } |
---|
1484 | |
---|
1485 | } |
---|
1486 | //----------------------------------------------------------------------- |
---|
1487 | void BillboardSetFactory::destroyInstance( MovableObject* obj) |
---|
1488 | { |
---|
1489 | delete obj; |
---|
1490 | } |
---|
1491 | |
---|
1492 | |
---|
1493 | } |
---|