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) 2000-2005 The OGRE Team
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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 | */
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25 | #include "OgreStableHeaders.h"
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26 |
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27 | #include "OgreBillboardSet.h"
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28 |
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29 | #include "OgreBillboard.h"
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30 | #include "OgreMaterialManager.h"
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31 | #include "OgreHardwareBufferManager.h"
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32 | #include "OgreCamera.h"
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33 | #include "OgreMath.h"
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34 | #include "OgreSphere.h"
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35 | #include "OgreRoot.h"
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36 | #include "OgreException.h"
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37 | #include "OgreStringConverter.h"
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38 | #include "OgreLogManager.h"
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39 | #include <algorithm>
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40 |
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41 | namespace Ogre {
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42 | // Init statics
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43 | RadixSort<BillboardSet::ActiveBillboardList, Billboard*, float> BillboardSet::mRadixSorter;
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44 |
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45 | //-----------------------------------------------------------------------
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46 | BillboardSet::BillboardSet() :
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47 | mOriginType( BBO_CENTER ),
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48 | mRotationType( BBR_TEXCOORD ),
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49 | mAllDefaultSize( true ),
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50 | mAutoExtendPool( true ),
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51 | mSortingEnabled(false),
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52 | mAccurateFacing(false),
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53 | mAllDefaultRotation(true),
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54 | mWorldSpace(false),
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55 | mVertexData(0),
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56 | mIndexData(0),
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57 | mCullIndividual( false ),
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58 | mBillboardType(BBT_POINT),
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59 | mCommonDirection(Ogre::Vector3::UNIT_Z),
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60 | mCommonUpVector(Vector3::UNIT_Y),
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61 | mPointRendering(false),
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62 | mBuffersCreated(false),
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63 | mPoolSize(0),
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64 | mExternalData(false)
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65 | {
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66 | setDefaultDimensions( 100, 100 );
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67 | setMaterialName( "BaseWhite" );
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68 | mCastShadows = false;
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69 | setTextureStacksAndSlices( 1, 1 );
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70 | }
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71 |
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72 | //-----------------------------------------------------------------------
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73 | BillboardSet::BillboardSet(
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74 | const String& name,
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75 | unsigned int poolSize,
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76 | bool externalData) :
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77 | MovableObject(name),
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78 | mOriginType( BBO_CENTER ),
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79 | mRotationType( BBR_TEXCOORD ),
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80 | mAllDefaultSize( true ),
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81 | mAutoExtendPool( true ),
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82 | mSortingEnabled(false),
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83 | mAccurateFacing(false),
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84 | mAllDefaultRotation(true),
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85 | mWorldSpace(false),
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86 | mVertexData(0),
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87 | mIndexData(0),
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88 | mCullIndividual( false ),
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89 | mBillboardType(BBT_POINT),
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90 | mCommonDirection(Ogre::Vector3::UNIT_Z),
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91 | mCommonUpVector(Vector3::UNIT_Y),
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92 | mPointRendering(false),
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93 | mBuffersCreated(false),
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94 | mPoolSize(poolSize),
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95 | mExternalData(externalData)
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96 | {
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97 | setDefaultDimensions( 100, 100 );
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98 | setMaterialName( "BaseWhite" );
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99 | setPoolSize( poolSize );
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100 | mCastShadows = false;
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101 | setTextureStacksAndSlices( 1, 1 );
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102 | }
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103 | //-----------------------------------------------------------------------
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104 | BillboardSet::~BillboardSet()
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105 | {
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106 | // Free pool items
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107 | BillboardPool::iterator i;
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108 | for (i = mBillboardPool.begin(); i != mBillboardPool.end(); ++i)
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109 | {
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110 | delete *i;
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111 | }
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112 |
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113 | // Delete shared buffers
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114 | _destroyBuffers();
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115 | }
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116 | //-----------------------------------------------------------------------
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117 | Billboard* BillboardSet::createBillboard(
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118 | const Vector3& position,
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119 | const ColourValue& colour )
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120 | {
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121 | if( mFreeBillboards.empty() )
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122 | {
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123 | if( mAutoExtendPool )
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124 | {
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125 | setPoolSize( getPoolSize() * 2 );
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126 | }
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127 | else
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128 | {
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129 | return 0;
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130 | }
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131 | }
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132 |
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133 | // Get a new billboard
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134 | Billboard* newBill = mFreeBillboards.front();
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135 | mActiveBillboards.splice(
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136 | mActiveBillboards.end(), mFreeBillboards, mFreeBillboards.begin());
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137 | newBill->setPosition(position);
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138 | newBill->setColour(colour);
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139 | newBill->mDirection = Vector3::ZERO;
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140 | newBill->setRotation(Radian(0));
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141 | newBill->setTexcoordIndex(0);
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142 | newBill->resetDimensions();
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143 | newBill->_notifyOwner(this);
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144 |
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145 | // Merge into bounds
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146 | Real adjust = std::max(mDefaultWidth, mDefaultHeight);
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147 | Vector3 vecAdjust(adjust, adjust, adjust);
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148 | Vector3 newMin = position - vecAdjust;
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149 | Vector3 newMax = position + vecAdjust;
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150 |
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151 | mAABB.merge(newMin);
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152 | mAABB.merge(newMax);
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153 |
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154 | Real sqlen = std::max(newMin.squaredLength(), newMax.squaredLength());
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155 | mBoundingRadius = std::max(mBoundingRadius, Math::Sqrt(sqlen));
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156 |
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157 | return newBill;
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158 | }
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159 |
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160 | //-----------------------------------------------------------------------
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161 | Billboard* BillboardSet::createBillboard(
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162 | Real x, Real y, Real z,
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163 | const ColourValue& colour )
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164 | {
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165 | return createBillboard( Vector3( x, y, z ), colour );
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166 | }
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167 |
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168 | //-----------------------------------------------------------------------
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169 | int BillboardSet::getNumBillboards(void) const
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170 | {
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171 | return static_cast< int >( mActiveBillboards.size() );
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172 | }
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173 |
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174 | //-----------------------------------------------------------------------
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175 | void BillboardSet::clear()
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176 | {
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177 | // Insert actives into free list
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178 | mFreeBillboards.insert(mFreeBillboards.end(), mActiveBillboards.begin(), mActiveBillboards.end());
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179 |
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180 | // Remove all active instances
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181 | mActiveBillboards.clear();
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182 | }
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183 |
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184 | //-----------------------------------------------------------------------
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185 | Billboard* BillboardSet::getBillboard( unsigned int index ) const
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186 | {
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187 | assert(
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188 | index < mActiveBillboards.size() &&
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189 | "Billboard index out of bounds." );
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190 |
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191 | /* We can't access it directly, so we check wether it's in the first
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192 | or the second half, then we start either from the beginning or the
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193 | end of the list
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194 | */
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195 | ActiveBillboardList::const_iterator it;
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196 | if( index >= ( mActiveBillboards.size() >> 1 ) )
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197 | {
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198 | index = static_cast<unsigned int>(mActiveBillboards.size()) - index;
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199 | for( it = mActiveBillboards.end(); index; --index, --it );
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200 | }
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201 | else
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202 | {
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203 | for( it = mActiveBillboards.begin(); index; --index, ++it );
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204 | }
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205 |
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206 | return *it;
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207 | }
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208 |
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209 | //-----------------------------------------------------------------------
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210 | void BillboardSet::removeBillboard(unsigned int index)
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211 | {
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212 | assert(
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213 | index < mActiveBillboards.size() &&
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214 | "Billboard index out of bounds." );
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215 |
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216 | /* We can't access it directly, so we check wether it's in the first
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217 | or the second half, then we start either from the beginning or the
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218 | end of the list.
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219 | We then remove the billboard form the 'used' list and add it to
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220 | the 'free' list.
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221 | */
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222 | ActiveBillboardList::iterator it;
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223 | if( index >= ( mActiveBillboards.size() >> 1 ) )
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224 | {
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225 | index = static_cast<unsigned int>(mActiveBillboards.size()) - index;
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226 | for( it = mActiveBillboards.end(); index; --index, --it );
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227 | }
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228 | else
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229 | {
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230 | for( it = mActiveBillboards.begin(); index; --index, ++it );
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231 | }
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232 |
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233 | mFreeBillboards.push_back( *it );
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234 | mActiveBillboards.erase( it );
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235 | }
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236 |
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237 | //-----------------------------------------------------------------------
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238 | void BillboardSet::removeBillboard( Billboard* pBill )
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239 | {
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240 | mActiveBillboards.remove( pBill );
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241 | mFreeBillboards.push_back( pBill );
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242 | }
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243 |
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244 | //-----------------------------------------------------------------------
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245 | void BillboardSet::setBillboardOrigin( BillboardOrigin origin )
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246 | {
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247 | mOriginType = origin;
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248 | }
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249 |
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250 | //-----------------------------------------------------------------------
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251 | BillboardOrigin BillboardSet::getBillboardOrigin(void) const
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252 | {
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253 | return mOriginType;
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254 | }
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255 |
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256 | //-----------------------------------------------------------------------
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257 | void BillboardSet::setBillboardRotationType(BillboardRotationType rotationType)
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258 | {
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259 | mRotationType = rotationType;
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260 | }
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261 | //-----------------------------------------------------------------------
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262 | BillboardRotationType BillboardSet::getBillboardRotationType(void) const
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263 | {
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264 | return mRotationType;
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265 | }
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266 | //-----------------------------------------------------------------------
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267 | void BillboardSet::setDefaultDimensions( Real width, Real height )
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268 | {
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269 | mDefaultWidth = width;
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270 | mDefaultHeight = height;
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271 | }
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272 | //-----------------------------------------------------------------------
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273 | void BillboardSet::setDefaultWidth(Real width)
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274 | {
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275 | mDefaultWidth = width;
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276 | }
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277 | //-----------------------------------------------------------------------
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278 | Real BillboardSet::getDefaultWidth(void) const
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279 | {
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280 | return mDefaultWidth;
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281 | }
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282 | //-----------------------------------------------------------------------
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283 | void BillboardSet::setDefaultHeight(Real height)
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284 | {
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285 | mDefaultHeight = height;
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286 | }
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287 | //-----------------------------------------------------------------------
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288 | Real BillboardSet::getDefaultHeight(void) const
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289 | {
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290 | return mDefaultHeight;
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291 | }
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292 | //-----------------------------------------------------------------------
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293 | void BillboardSet::setMaterialName( const String& name )
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294 | {
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295 | mMaterialName = name;
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296 |
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297 | mpMaterial = MaterialManager::getSingleton().getByName(name);
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298 |
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299 | if (mpMaterial.isNull())
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300 | OGRE_EXCEPT( Exception::ERR_ITEM_NOT_FOUND, "Could not find material " + name,
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301 | "BillboardSet::setMaterialName" );
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302 |
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303 | /* Ensure that the new material was loaded (will not load again if
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304 | already loaded anyway)
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305 | */
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306 | mpMaterial->load();
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307 | }
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308 |
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309 | //-----------------------------------------------------------------------
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310 | const String& BillboardSet::getMaterialName(void) const
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311 | {
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312 | return mMaterialName;
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313 | }
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314 |
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315 | //-----------------------------------------------------------------------
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316 | void BillboardSet::_sortBillboards( Camera* cam)
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317 | {
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318 | switch (_getSortMode())
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319 | {
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320 | case SM_DIRECTION:
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321 | mRadixSorter.sort(mActiveBillboards, SortByDirectionFunctor(-mCamDir));
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322 | break;
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323 | case SM_DISTANCE:
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324 | mRadixSorter.sort(mActiveBillboards, SortByDistanceFunctor(mCamPos));
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325 | break;
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326 | }
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327 | }
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328 | BillboardSet::SortByDirectionFunctor::SortByDirectionFunctor(const Vector3& dir)
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329 | : sortDir(dir)
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330 | {
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331 | }
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332 | float BillboardSet::SortByDirectionFunctor::operator()(Billboard* bill) const
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333 | {
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334 | return sortDir.dotProduct(bill->getPosition());
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335 | }
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336 | BillboardSet::SortByDistanceFunctor::SortByDistanceFunctor(const Vector3& pos)
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337 | : sortPos(pos)
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338 | {
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339 | }
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340 | float BillboardSet::SortByDistanceFunctor::operator()(Billboard* bill) const
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341 | {
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342 | // Sort descending by squared distance
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343 | return - (sortPos - bill->getPosition()).squaredLength();
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344 | }
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345 | //-----------------------------------------------------------------------
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346 | SortMode BillboardSet::_getSortMode(void) const
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347 | {
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348 | // Need to sort by distance if we're using accurate facing, or perpendicular billboard type.
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349 | if (mAccurateFacing ||
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350 | mBillboardType == BBT_PERPENDICULAR_SELF ||
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351 | mBillboardType == BBT_PERPENDICULAR_COMMON)
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352 | {
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353 | return SM_DISTANCE;
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354 | }
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355 | else
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356 | {
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357 | return SM_DIRECTION;
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358 | }
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359 | }
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360 | //-----------------------------------------------------------------------
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361 | void BillboardSet::_notifyCurrentCamera( Camera* cam )
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362 | {
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363 | MovableObject::_notifyCurrentCamera(cam);
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364 |
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365 | mCurrentCamera = cam;
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366 |
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367 | // Calculate camera orientation and position
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368 | mCamQ = mCurrentCamera->getDerivedOrientation();
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369 | mCamPos = mCurrentCamera->getDerivedPosition();
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370 | if (!mWorldSpace)
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371 | {
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372 | // Default behaviour is that billboards are in local node space
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373 | // so orientation of camera (in world space) must be reverse-transformed
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374 | // into node space
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375 | mCamQ = mParentNode->_getDerivedOrientation().UnitInverse() * mCamQ;
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376 | mCamPos = mParentNode->_getDerivedOrientation().UnitInverse() *
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377 | (mCamPos - mParentNode->_getDerivedPosition()) / mParentNode->_getDerivedScale();
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378 | }
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379 |
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380 | // Camera direction points down -Z
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381 | mCamDir = mCamQ * Vector3::NEGATIVE_UNIT_Z;
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382 | }
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383 | //-----------------------------------------------------------------------
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384 | void BillboardSet::beginBillboards(void)
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385 | {
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386 | /* Generate the vertices for all the billboards relative to the camera
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387 | Also take the opportunity to update the vertex colours
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388 | May as well do it here to save on loops elsewhere
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389 | */
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390 |
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391 | /* NOTE: most engines generate world coordinates for the billboards
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392 | directly, taking the world axes of the camera as offsets to the
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393 | center points. I take a different approach, reverse-transforming
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394 | the camera world axes into local billboard space.
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395 | Why?
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396 | Well, it's actually more efficient this way, because I only have to
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397 | reverse-transform using the billboardset world matrix (inverse)
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398 | once, from then on it's simple additions (assuming identically
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399 | sized billboards). If I transformed every billboard center by it's
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400 | world transform, that's a matrix multiplication per billboard
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401 | instead.
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402 | I leave the final transform to the render pipeline since that can
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403 | use hardware TnL if it is available.
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404 | */
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405 |
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406 | // create vertex and index buffers if they haven't already been
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407 | if(!mBuffersCreated)
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408 | _createBuffers();
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409 |
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410 | // Only calculate vertex offets et al if we're not point rendering
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411 | if (!mPointRendering)
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412 | {
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413 |
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414 | // Get offsets for origin type
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415 | getParametricOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff);
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416 |
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417 | // Generate axes etc up-front if not oriented per-billboard
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418 | if (mBillboardType != BBT_ORIENTED_SELF &&
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419 | mBillboardType != BBT_PERPENDICULAR_SELF &&
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420 | !mAccurateFacing)
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421 | {
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422 | genBillboardAxes(&mCamX, &mCamY);
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423 |
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424 | /* If all billboards are the same size we can precalculate the
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425 | offsets and just use '+' instead of '*' for each billboard,
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426 | and it should be faster.
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427 | */
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428 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff,
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429 | mDefaultWidth, mDefaultHeight, mCamX, mCamY, mVOffset);
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430 |
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431 | }
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432 | }
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433 |
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434 | // Init num visible
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435 | mNumVisibleBillboards = 0;
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436 |
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437 | // Lock the buffer
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438 | mLockPtr = static_cast<float*>(
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439 | mMainBuf->lock(HardwareBuffer::HBL_DISCARD) );
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440 |
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441 | }
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442 | //-----------------------------------------------------------------------
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443 | void BillboardSet::injectBillboard(const Billboard& bb)
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444 | {
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445 | // Skip if not visible (NB always true if not bounds checking individual billboards)
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446 | if (!billboardVisible(mCurrentCamera, bb)) return;
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447 |
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448 | if (!mPointRendering &&
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449 | (mBillboardType == BBT_ORIENTED_SELF ||
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450 | mBillboardType == BBT_PERPENDICULAR_SELF ||
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451 | mAccurateFacing))
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452 | {
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453 | // Have to generate axes & offsets per billboard
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454 | genBillboardAxes(&mCamX, &mCamY, &bb);
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455 | }
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456 |
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457 | // If they're all the same size or we're point rendering
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458 | if( mAllDefaultSize || mPointRendering)
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459 | {
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460 | /* No per-billboard checking, just blast through.
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461 | Saves us an if clause every billboard which may
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462 | make a difference.
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463 | */
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464 |
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465 | if (!mPointRendering &&
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466 | (mBillboardType == BBT_ORIENTED_SELF ||
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467 | mBillboardType == BBT_PERPENDICULAR_SELF ||
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468 | mAccurateFacing))
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469 | {
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470 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff,
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471 | mDefaultWidth, mDefaultHeight, mCamX, mCamY, mVOffset);
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472 | }
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473 | genVertices(mVOffset, bb);
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474 | }
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475 | else // not all default size and not point rendering
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476 | {
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477 | Vector3 vOwnOffset[4];
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478 | // If it has own dimensions, or self-oriented, gen offsets
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479 | if (mBillboardType == BBT_ORIENTED_SELF ||
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480 | mBillboardType == BBT_PERPENDICULAR_SELF ||
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481 | bb.mOwnDimensions ||
|
---|
482 | mAccurateFacing)
|
---|
483 | {
|
---|
484 | // Generate using own dimensions
|
---|
485 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff,
|
---|
486 | bb.mWidth, bb.mHeight, mCamX, mCamY, vOwnOffset);
|
---|
487 | // Create vertex data
|
---|
488 | genVertices(vOwnOffset, bb);
|
---|
489 | }
|
---|
490 | else // Use default dimension, already computed before the loop, for faster creation
|
---|
491 | {
|
---|
492 | genVertices(mVOffset, bb);
|
---|
493 | }
|
---|
494 | }
|
---|
495 | // Increment visibles
|
---|
496 | mNumVisibleBillboards++;
|
---|
497 | }
|
---|
498 | //-----------------------------------------------------------------------
|
---|
499 | void BillboardSet::endBillboards(void)
|
---|
500 | {
|
---|
501 | mMainBuf->unlock();
|
---|
502 | }
|
---|
503 | //-----------------------------------------------------------------------
|
---|
504 | void BillboardSet::setBounds(const AxisAlignedBox& box, Real radius)
|
---|
505 | {
|
---|
506 | mAABB = box;
|
---|
507 | mBoundingRadius = radius;
|
---|
508 | }
|
---|
509 | //-----------------------------------------------------------------------
|
---|
510 | void BillboardSet::_updateBounds(void)
|
---|
511 | {
|
---|
512 | if (mActiveBillboards.empty())
|
---|
513 | {
|
---|
514 | // No billboards, null bbox
|
---|
515 | mAABB.setNull();
|
---|
516 | mBoundingRadius = 0.0f;
|
---|
517 | }
|
---|
518 | else
|
---|
519 | {
|
---|
520 | Real maxSqLen = -1.0f;
|
---|
521 |
|
---|
522 | Vector3 min(Math::POS_INFINITY, Math::POS_INFINITY, Math::POS_INFINITY);
|
---|
523 | Vector3 max(Math::NEG_INFINITY, Math::NEG_INFINITY, Math::NEG_INFINITY);
|
---|
524 | ActiveBillboardList::iterator i, iend;
|
---|
525 |
|
---|
526 | iend = mActiveBillboards.end();
|
---|
527 | for (i = mActiveBillboards.begin(); i != iend; ++i)
|
---|
528 | {
|
---|
529 | const Vector3& pos = (*i)->getPosition();
|
---|
530 | min.makeFloor(pos);
|
---|
531 | max.makeCeil(pos);
|
---|
532 |
|
---|
533 | maxSqLen = std::max(maxSqLen, pos.squaredLength());
|
---|
534 | }
|
---|
535 | // Adjust for billboard size
|
---|
536 | Real adjust = std::max(mDefaultWidth, mDefaultHeight);
|
---|
537 | Vector3 vecAdjust(adjust, adjust, adjust);
|
---|
538 | min -= vecAdjust;
|
---|
539 | max += vecAdjust;
|
---|
540 |
|
---|
541 | mAABB.setExtents(min, max);
|
---|
542 | mBoundingRadius = Math::Sqrt(maxSqLen);
|
---|
543 |
|
---|
544 | }
|
---|
545 |
|
---|
546 | if (mParentNode)
|
---|
547 | mParentNode->needUpdate();
|
---|
548 |
|
---|
549 | }
|
---|
550 | //-----------------------------------------------------------------------
|
---|
551 | const AxisAlignedBox& BillboardSet::getBoundingBox(void) const
|
---|
552 | {
|
---|
553 | return mAABB;
|
---|
554 | }
|
---|
555 |
|
---|
556 | //-----------------------------------------------------------------------
|
---|
557 | void BillboardSet::_updateRenderQueue(RenderQueue* queue)
|
---|
558 | {
|
---|
559 | // If we're driving this from our own data, update geometry now
|
---|
560 | if (!mExternalData)
|
---|
561 | {
|
---|
562 | if (mSortingEnabled)
|
---|
563 | {
|
---|
564 | _sortBillboards(mCurrentCamera);
|
---|
565 | }
|
---|
566 |
|
---|
567 | beginBillboards();
|
---|
568 | ActiveBillboardList::iterator it;
|
---|
569 | for(it = mActiveBillboards.begin();
|
---|
570 | it != mActiveBillboards.end();
|
---|
571 | ++it )
|
---|
572 | {
|
---|
573 | injectBillboard(*(*it));
|
---|
574 | }
|
---|
575 | endBillboards();
|
---|
576 | }
|
---|
577 |
|
---|
578 | //only set the render queue group if it has been explicitly set.
|
---|
579 | if( mRenderQueueIDSet )
|
---|
580 | {
|
---|
581 | queue->addRenderable(this, mRenderQueueID);
|
---|
582 | } else {
|
---|
583 | queue->addRenderable(this);
|
---|
584 | }
|
---|
585 |
|
---|
586 | }
|
---|
587 |
|
---|
588 | //-----------------------------------------------------------------------
|
---|
589 | const MaterialPtr& BillboardSet::getMaterial(void) const
|
---|
590 | {
|
---|
591 | return mpMaterial;
|
---|
592 | }
|
---|
593 |
|
---|
594 | //-----------------------------------------------------------------------
|
---|
595 | void BillboardSet::getRenderOperation(RenderOperation& op)
|
---|
596 | {
|
---|
597 | op.vertexData = mVertexData;
|
---|
598 | op.vertexData->vertexStart = 0;
|
---|
599 |
|
---|
600 | if (mPointRendering)
|
---|
601 | {
|
---|
602 | op.operationType = RenderOperation::OT_POINT_LIST;
|
---|
603 | op.useIndexes = false;
|
---|
604 | op.indexData = 0;
|
---|
605 | op.vertexData->vertexCount = mNumVisibleBillboards;
|
---|
606 | }
|
---|
607 | else
|
---|
608 | {
|
---|
609 | op.operationType = RenderOperation::OT_TRIANGLE_LIST;
|
---|
610 | op.useIndexes = true;
|
---|
611 |
|
---|
612 | op.vertexData->vertexCount = mNumVisibleBillboards * 4;
|
---|
613 |
|
---|
614 | op.indexData = mIndexData;
|
---|
615 | op.indexData->indexCount = mNumVisibleBillboards * 6;
|
---|
616 | op.indexData->indexStart = 0;
|
---|
617 | }
|
---|
618 | }
|
---|
619 |
|
---|
620 | //-----------------------------------------------------------------------
|
---|
621 | void BillboardSet::getWorldTransforms( Matrix4* xform ) const
|
---|
622 | {
|
---|
623 | if (mWorldSpace)
|
---|
624 | {
|
---|
625 | *xform = Matrix4::IDENTITY;
|
---|
626 | }
|
---|
627 | else
|
---|
628 | {
|
---|
629 | *xform = _getParentNodeFullTransform();
|
---|
630 | }
|
---|
631 | }
|
---|
632 |
|
---|
633 | //-----------------------------------------------------------------------
|
---|
634 | const Quaternion& BillboardSet::getWorldOrientation(void) const
|
---|
635 | {
|
---|
636 | return mParentNode->_getDerivedOrientation();
|
---|
637 | }
|
---|
638 |
|
---|
639 | //-----------------------------------------------------------------------
|
---|
640 | const Vector3& BillboardSet::getWorldPosition(void) const
|
---|
641 | {
|
---|
642 | return mParentNode->_getDerivedPosition();
|
---|
643 | }
|
---|
644 |
|
---|
645 | //-----------------------------------------------------------------------
|
---|
646 | void BillboardSet::setAutoextend( bool autoextend )
|
---|
647 | {
|
---|
648 | mAutoExtendPool = autoextend;
|
---|
649 | }
|
---|
650 |
|
---|
651 | //-----------------------------------------------------------------------
|
---|
652 | bool BillboardSet::getAutoextend(void) const
|
---|
653 | {
|
---|
654 | return mAutoExtendPool;
|
---|
655 | }
|
---|
656 |
|
---|
657 | //-----------------------------------------------------------------------
|
---|
658 | void BillboardSet::setSortingEnabled( bool sortenable )
|
---|
659 | {
|
---|
660 | mSortingEnabled = sortenable;
|
---|
661 | }
|
---|
662 |
|
---|
663 | //-----------------------------------------------------------------------
|
---|
664 | bool BillboardSet::getSortingEnabled(void) const
|
---|
665 | {
|
---|
666 | return mSortingEnabled;
|
---|
667 | }
|
---|
668 |
|
---|
669 | //-----------------------------------------------------------------------
|
---|
670 | void BillboardSet::setPoolSize( unsigned int size )
|
---|
671 | {
|
---|
672 | // If we're driving this from our own data, allocate billboards
|
---|
673 | if (!mExternalData)
|
---|
674 | {
|
---|
675 | // Never shrink below size()
|
---|
676 | size_t currSize = mBillboardPool.size();
|
---|
677 | if (currSize >= size)
|
---|
678 | return;
|
---|
679 |
|
---|
680 | this->increasePool(size);
|
---|
681 |
|
---|
682 | for( size_t i = currSize; i < size; ++i )
|
---|
683 | {
|
---|
684 | // Add new items to the queue
|
---|
685 | mFreeBillboards.push_back( mBillboardPool[i] );
|
---|
686 | }
|
---|
687 | }
|
---|
688 |
|
---|
689 | mPoolSize = size;
|
---|
690 |
|
---|
691 | _destroyBuffers();
|
---|
692 | }
|
---|
693 |
|
---|
694 | //-----------------------------------------------------------------------
|
---|
695 | void BillboardSet::_createBuffers(void)
|
---|
696 | {
|
---|
697 | /* Allocate / reallocate vertex data
|
---|
698 | Note that we allocate enough space for ALL the billboards in the pool, but only issue
|
---|
699 | rendering operations for the sections relating to the active billboards
|
---|
700 | */
|
---|
701 |
|
---|
702 | /* Alloc positions ( 1 or 4 verts per billboard, 3 components )
|
---|
703 | colours ( 1 x RGBA per vertex )
|
---|
704 | indices ( 6 per billboard ( 2 tris ) if not point rendering )
|
---|
705 | tex. coords ( 2D coords, 1 or 4 per billboard )
|
---|
706 | */
|
---|
707 |
|
---|
708 | // Warn if user requested an invalid setup
|
---|
709 | // Do it here so it only appears once
|
---|
710 | if (mPointRendering && mBillboardType != BBT_POINT)
|
---|
711 | {
|
---|
712 |
|
---|
713 | LogManager::getSingleton().logMessage("Warning: BillboardSet " +
|
---|
714 | mName + " has point rendering enabled but is using a type "
|
---|
715 | "other than BBT_POINT, this may not give you the results you "
|
---|
716 | "expect.");
|
---|
717 | }
|
---|
718 |
|
---|
719 | mVertexData = new VertexData();
|
---|
720 | if (mPointRendering)
|
---|
721 | mVertexData->vertexCount = mPoolSize;
|
---|
722 | else
|
---|
723 | mVertexData->vertexCount = mPoolSize * 4;
|
---|
724 |
|
---|
725 | mVertexData->vertexStart = 0;
|
---|
726 |
|
---|
727 | // Vertex declaration
|
---|
728 | VertexDeclaration* decl = mVertexData->vertexDeclaration;
|
---|
729 | VertexBufferBinding* binding = mVertexData->vertexBufferBinding;
|
---|
730 |
|
---|
731 | size_t offset = 0;
|
---|
732 | decl->addElement(0, offset, VET_FLOAT3, VES_POSITION);
|
---|
733 | offset += VertexElement::getTypeSize(VET_FLOAT3);
|
---|
734 | decl->addElement(0, offset, VET_COLOUR, VES_DIFFUSE);
|
---|
735 | offset += VertexElement::getTypeSize(VET_COLOUR);
|
---|
736 | // Texture coords irrelevant when enabled point rendering (generated
|
---|
737 | // in point sprite mode, and unused in standard point mode)
|
---|
738 | if (!mPointRendering)
|
---|
739 | {
|
---|
740 | decl->addElement(0, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);
|
---|
741 | }
|
---|
742 |
|
---|
743 | mMainBuf =
|
---|
744 | HardwareBufferManager::getSingleton().createVertexBuffer(
|
---|
745 | decl->getVertexSize(0),
|
---|
746 | mVertexData->vertexCount,
|
---|
747 | HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE);
|
---|
748 | // bind position and diffuses
|
---|
749 | binding->setBinding(0, mMainBuf);
|
---|
750 |
|
---|
751 | if (!mPointRendering)
|
---|
752 | {
|
---|
753 | mIndexData = new IndexData();
|
---|
754 | mIndexData->indexStart = 0;
|
---|
755 | mIndexData->indexCount = mPoolSize * 6;
|
---|
756 |
|
---|
757 | mIndexData->indexBuffer = HardwareBufferManager::getSingleton().
|
---|
758 | createIndexBuffer(HardwareIndexBuffer::IT_16BIT,
|
---|
759 | mIndexData->indexCount,
|
---|
760 | HardwareBuffer::HBU_STATIC_WRITE_ONLY);
|
---|
761 |
|
---|
762 | /* Create indexes (will be the same every frame)
|
---|
763 | Using indexes because it means 1/3 less vertex transforms (4 instead of 6)
|
---|
764 |
|
---|
765 | Billboard layout relative to camera:
|
---|
766 |
|
---|
767 | 2-----3
|
---|
768 | | /|
|
---|
769 | | / |
|
---|
770 | |/ |
|
---|
771 | 0-----1
|
---|
772 | */
|
---|
773 |
|
---|
774 | ushort* pIdx = static_cast<ushort*>(
|
---|
775 | mIndexData->indexBuffer->lock(0,
|
---|
776 | mIndexData->indexBuffer->getSizeInBytes(),
|
---|
777 | HardwareBuffer::HBL_DISCARD) );
|
---|
778 |
|
---|
779 | for(
|
---|
780 | size_t idx, idxOff, bboard = 0;
|
---|
781 | bboard < mPoolSize;
|
---|
782 | ++bboard )
|
---|
783 | {
|
---|
784 | // Do indexes
|
---|
785 | idx = bboard * 6;
|
---|
786 | idxOff = bboard * 4;
|
---|
787 |
|
---|
788 | pIdx[idx] = static_cast<unsigned short>(idxOff); // + 0;, for clarity
|
---|
789 | pIdx[idx+1] = static_cast<unsigned short>(idxOff + 1);
|
---|
790 | pIdx[idx+2] = static_cast<unsigned short>(idxOff + 3);
|
---|
791 | pIdx[idx+3] = static_cast<unsigned short>(idxOff + 0);
|
---|
792 | pIdx[idx+4] = static_cast<unsigned short>(idxOff + 3);
|
---|
793 | pIdx[idx+5] = static_cast<unsigned short>(idxOff + 2);
|
---|
794 |
|
---|
795 | }
|
---|
796 |
|
---|
797 | mIndexData->indexBuffer->unlock();
|
---|
798 | }
|
---|
799 | mBuffersCreated = true;
|
---|
800 | }
|
---|
801 | //-----------------------------------------------------------------------
|
---|
802 | void BillboardSet::_destroyBuffers(void)
|
---|
803 | {
|
---|
804 | if (mVertexData)
|
---|
805 | {
|
---|
806 | delete mVertexData;
|
---|
807 | mVertexData = 0;
|
---|
808 | }
|
---|
809 | if (mIndexData)
|
---|
810 | {
|
---|
811 | delete mIndexData;
|
---|
812 | mIndexData = 0;
|
---|
813 | }
|
---|
814 | mBuffersCreated = false;
|
---|
815 |
|
---|
816 | }
|
---|
817 | //-----------------------------------------------------------------------
|
---|
818 | unsigned int BillboardSet::getPoolSize(void) const
|
---|
819 | {
|
---|
820 | return static_cast< unsigned int >( mBillboardPool.size() );
|
---|
821 | }
|
---|
822 |
|
---|
823 | //-----------------------------------------------------------------------
|
---|
824 | void BillboardSet::_notifyBillboardResized(void)
|
---|
825 | {
|
---|
826 | mAllDefaultSize = false;
|
---|
827 | }
|
---|
828 |
|
---|
829 | //-----------------------------------------------------------------------
|
---|
830 | void BillboardSet::_notifyBillboardRotated(void)
|
---|
831 | {
|
---|
832 | mAllDefaultRotation = false;
|
---|
833 | }
|
---|
834 |
|
---|
835 | //-----------------------------------------------------------------------
|
---|
836 | void BillboardSet::getParametricOffsets(
|
---|
837 | Real& left, Real& right, Real& top, Real& bottom )
|
---|
838 | {
|
---|
839 | switch( mOriginType )
|
---|
840 | {
|
---|
841 | case BBO_TOP_LEFT:
|
---|
842 | left = 0.0f;
|
---|
843 | right = 1.0f;
|
---|
844 | top = 0.0f;
|
---|
845 | bottom = 1.0f;
|
---|
846 | break;
|
---|
847 |
|
---|
848 | case BBO_TOP_CENTER:
|
---|
849 | left = -0.5f;
|
---|
850 | right = 0.5f;
|
---|
851 | top = 0.0f;
|
---|
852 | bottom = 1.0f;
|
---|
853 | break;
|
---|
854 |
|
---|
855 | case BBO_TOP_RIGHT:
|
---|
856 | left = -1.0f;
|
---|
857 | right = 0.0f;
|
---|
858 | top = 0.0f;
|
---|
859 | bottom = 1.0f;
|
---|
860 | break;
|
---|
861 |
|
---|
862 | case BBO_CENTER_LEFT:
|
---|
863 | left = 0.0f;
|
---|
864 | right = 1.0f;
|
---|
865 | top = -0.5f;
|
---|
866 | bottom = 0.5f;
|
---|
867 | break;
|
---|
868 |
|
---|
869 | case BBO_CENTER:
|
---|
870 | left = -0.5f;
|
---|
871 | right = 0.5f;
|
---|
872 | top = -0.5f;
|
---|
873 | bottom = 0.5f;
|
---|
874 | break;
|
---|
875 |
|
---|
876 | case BBO_CENTER_RIGHT:
|
---|
877 | left = -1.0f;
|
---|
878 | right = 0.0f;
|
---|
879 | top = -0.5f;
|
---|
880 | bottom = 0.5f;
|
---|
881 | break;
|
---|
882 |
|
---|
883 | case BBO_BOTTOM_LEFT:
|
---|
884 | left = 0.0f;
|
---|
885 | right = 1.0f;
|
---|
886 | top = -1.0f;
|
---|
887 | bottom = 0.0f;
|
---|
888 | break;
|
---|
889 |
|
---|
890 | case BBO_BOTTOM_CENTER:
|
---|
891 | left = -0.5f;
|
---|
892 | right = 0.5f;
|
---|
893 | top = -1.0f;
|
---|
894 | bottom = 0.0f;
|
---|
895 | break;
|
---|
896 |
|
---|
897 | case BBO_BOTTOM_RIGHT:
|
---|
898 | left = -1.0f;
|
---|
899 | right = 0.0f;
|
---|
900 | top = -1.0f;
|
---|
901 | bottom = 0.0f;
|
---|
902 | break;
|
---|
903 | }
|
---|
904 | }
|
---|
905 | //-----------------------------------------------------------------------
|
---|
906 | bool BillboardSet::getCullIndividually(void) const
|
---|
907 | {
|
---|
908 | return mCullIndividual;
|
---|
909 | }
|
---|
910 | //-----------------------------------------------------------------------
|
---|
911 | void BillboardSet::setCullIndividually(bool cullIndividual)
|
---|
912 | {
|
---|
913 | mCullIndividual = cullIndividual;
|
---|
914 | }
|
---|
915 | //-----------------------------------------------------------------------
|
---|
916 | bool BillboardSet::billboardVisible(Camera* cam, const Billboard& bill)
|
---|
917 | {
|
---|
918 | // Return always visible if not culling individually
|
---|
919 | if (!mCullIndividual) return true;
|
---|
920 |
|
---|
921 | // Cull based on sphere (have to transform less)
|
---|
922 | Sphere sph;
|
---|
923 | Matrix4 xworld;
|
---|
924 |
|
---|
925 | getWorldTransforms(&xworld);
|
---|
926 |
|
---|
927 | sph.setCenter(xworld * bill.mPosition);
|
---|
928 |
|
---|
929 | if (bill.mOwnDimensions)
|
---|
930 | {
|
---|
931 | sph.setRadius(std::max(bill.mWidth, bill.mHeight));
|
---|
932 | }
|
---|
933 | else
|
---|
934 | {
|
---|
935 | sph.setRadius(std::max(mDefaultWidth, mDefaultHeight));
|
---|
936 | }
|
---|
937 |
|
---|
938 | return cam->isVisible(sph);
|
---|
939 |
|
---|
940 | }
|
---|
941 | //-----------------------------------------------------------------------
|
---|
942 | void BillboardSet::increasePool(unsigned int size)
|
---|
943 | {
|
---|
944 | size_t oldSize = mBillboardPool.size();
|
---|
945 |
|
---|
946 | // Increase size
|
---|
947 | mBillboardPool.reserve(size);
|
---|
948 | mBillboardPool.resize(size);
|
---|
949 |
|
---|
950 | // Create new billboards
|
---|
951 | for( size_t i = oldSize; i < size; ++i )
|
---|
952 | mBillboardPool[i] = new Billboard();
|
---|
953 |
|
---|
954 | }
|
---|
955 | //-----------------------------------------------------------------------
|
---|
956 | void BillboardSet::genBillboardAxes(Vector3* pX, Vector3 *pY, const Billboard* bb)
|
---|
957 | {
|
---|
958 | // If we're using accurate facing, recalculate camera direction per BB
|
---|
959 | if (mAccurateFacing &&
|
---|
960 | (mBillboardType == BBT_POINT ||
|
---|
961 | mBillboardType == BBT_ORIENTED_COMMON ||
|
---|
962 | mBillboardType == BBT_ORIENTED_SELF))
|
---|
963 | {
|
---|
964 | // cam -> bb direction
|
---|
965 | mCamDir = bb->mPosition - mCamPos;
|
---|
966 | mCamDir.normalise();
|
---|
967 | }
|
---|
968 |
|
---|
969 |
|
---|
970 | switch (mBillboardType)
|
---|
971 | {
|
---|
972 | case BBT_POINT:
|
---|
973 | if (mAccurateFacing)
|
---|
974 | {
|
---|
975 | // Point billboards will have 'up' based on but not equal to cameras
|
---|
976 | // Use pY temporarily to avoid allocation
|
---|
977 | *pY = mCamQ * Vector3::UNIT_Y;
|
---|
978 | *pX = mCamDir.crossProduct(*pY);
|
---|
979 | pX->normalise();
|
---|
980 | *pY = pX->crossProduct(mCamDir); // both normalised already
|
---|
981 | }
|
---|
982 | else
|
---|
983 | {
|
---|
984 | // Get camera axes for X and Y (depth is irrelevant)
|
---|
985 | *pX = mCamQ * Vector3::UNIT_X;
|
---|
986 | *pY = mCamQ * Vector3::UNIT_Y;
|
---|
987 | }
|
---|
988 | break;
|
---|
989 |
|
---|
990 | case BBT_ORIENTED_COMMON:
|
---|
991 | // Y-axis is common direction
|
---|
992 | // X-axis is cross with camera direction
|
---|
993 | *pY = mCommonDirection;
|
---|
994 | *pX = mCamDir.crossProduct(*pY);
|
---|
995 | pX->normalise();
|
---|
996 | break;
|
---|
997 |
|
---|
998 | case BBT_ORIENTED_SELF:
|
---|
999 | // Y-axis is direction
|
---|
1000 | // X-axis is cross with camera direction
|
---|
1001 | // Scale direction first
|
---|
1002 | *pY = bb->mDirection;
|
---|
1003 | *pX = mCamDir.crossProduct(*pY);
|
---|
1004 | pX->normalise();
|
---|
1005 | break;
|
---|
1006 |
|
---|
1007 | case BBT_PERPENDICULAR_COMMON:
|
---|
1008 | // X-axis is up-vector cross common direction
|
---|
1009 | // Y-axis is common direction cross X-axis
|
---|
1010 | *pX = mCommonUpVector.crossProduct(mCommonDirection);
|
---|
1011 | *pY = mCommonDirection.crossProduct(*pX);
|
---|
1012 | break;
|
---|
1013 |
|
---|
1014 | case BBT_PERPENDICULAR_SELF:
|
---|
1015 | // X-axis is up-vector cross own direction
|
---|
1016 | // Y-axis is own direction cross X-axis
|
---|
1017 | *pX = mCommonUpVector.crossProduct(bb->mDirection);
|
---|
1018 | pX->normalise();
|
---|
1019 | *pY = bb->mDirection.crossProduct(*pX); // both should be normalised
|
---|
1020 | break;
|
---|
1021 | }
|
---|
1022 |
|
---|
1023 | }
|
---|
1024 | //-----------------------------------------------------------------------
|
---|
1025 | void BillboardSet::setBillboardType(BillboardType bbt)
|
---|
1026 | {
|
---|
1027 | mBillboardType = bbt;
|
---|
1028 | }
|
---|
1029 | //-----------------------------------------------------------------------
|
---|
1030 | BillboardType BillboardSet::getBillboardType(void) const
|
---|
1031 | {
|
---|
1032 | return mBillboardType;
|
---|
1033 | }
|
---|
1034 | //-----------------------------------------------------------------------
|
---|
1035 | void BillboardSet::setCommonDirection(const Vector3& vec)
|
---|
1036 | {
|
---|
1037 | mCommonDirection = vec;
|
---|
1038 | }
|
---|
1039 | //-----------------------------------------------------------------------
|
---|
1040 | const Vector3& BillboardSet::getCommonDirection(void) const
|
---|
1041 | {
|
---|
1042 | return mCommonDirection;
|
---|
1043 | }
|
---|
1044 | //-----------------------------------------------------------------------
|
---|
1045 | void BillboardSet::setCommonUpVector(const Vector3& vec)
|
---|
1046 | {
|
---|
1047 | mCommonUpVector = vec;
|
---|
1048 | }
|
---|
1049 | //-----------------------------------------------------------------------
|
---|
1050 | const Vector3& BillboardSet::getCommonUpVector(void) const
|
---|
1051 | {
|
---|
1052 | return mCommonUpVector;
|
---|
1053 | }
|
---|
1054 | //-----------------------------------------------------------------------
|
---|
1055 | uint32 BillboardSet::getTypeFlags(void) const
|
---|
1056 | {
|
---|
1057 | return SceneManager::FX_TYPE_MASK;
|
---|
1058 | }
|
---|
1059 | //-----------------------------------------------------------------------
|
---|
1060 | void BillboardSet::genVertices(
|
---|
1061 | const Vector3* const offsets, const Billboard& bb)
|
---|
1062 | {
|
---|
1063 | RGBA colour;
|
---|
1064 | Root::getSingleton().convertColourValue(bb.mColour, &colour);
|
---|
1065 | RGBA* pCol;
|
---|
1066 |
|
---|
1067 | // Texcoords
|
---|
1068 | assert( bb.mUseTexcoordRect || bb.mTexcoordIndex < mTextureCoords.size() );
|
---|
1069 | const Ogre::FloatRect & r =
|
---|
1070 | bb.mUseTexcoordRect ? bb.mTexcoordRect : mTextureCoords[bb.mTexcoordIndex];
|
---|
1071 |
|
---|
1072 | if (mPointRendering)
|
---|
1073 | {
|
---|
1074 | // Single vertex per billboard, ignore offsets
|
---|
1075 | // position
|
---|
1076 | *mLockPtr++ = bb.mPosition.x;
|
---|
1077 | *mLockPtr++ = bb.mPosition.y;
|
---|
1078 | *mLockPtr++ = bb.mPosition.z;
|
---|
1079 | // Colour
|
---|
1080 | // Convert float* to RGBA*
|
---|
1081 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1082 | *pCol++ = colour;
|
---|
1083 | // Update lock pointer
|
---|
1084 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1085 | // No texture coords in point rendering
|
---|
1086 | }
|
---|
1087 | else if (mAllDefaultRotation || bb.mRotation == Radian(0))
|
---|
1088 | {
|
---|
1089 | // Left-top
|
---|
1090 | // Positions
|
---|
1091 | *mLockPtr++ = offsets[0].x + bb.mPosition.x;
|
---|
1092 | *mLockPtr++ = offsets[0].y + bb.mPosition.y;
|
---|
1093 | *mLockPtr++ = offsets[0].z + bb.mPosition.z;
|
---|
1094 | // Colour
|
---|
1095 | // Convert float* to RGBA*
|
---|
1096 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1097 | *pCol++ = colour;
|
---|
1098 | // Update lock pointer
|
---|
1099 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1100 | // Texture coords
|
---|
1101 | *mLockPtr++ = r.left;
|
---|
1102 | *mLockPtr++ = r.bottom;
|
---|
1103 |
|
---|
1104 | // Right-top
|
---|
1105 | // Positions
|
---|
1106 | *mLockPtr++ = offsets[1].x + bb.mPosition.x;
|
---|
1107 | *mLockPtr++ = offsets[1].y + bb.mPosition.y;
|
---|
1108 | *mLockPtr++ = offsets[1].z + bb.mPosition.z;
|
---|
1109 | // Colour
|
---|
1110 | // Convert float* to RGBA*
|
---|
1111 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1112 | *pCol++ = colour;
|
---|
1113 | // Update lock pointer
|
---|
1114 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1115 | // Texture coords
|
---|
1116 | *mLockPtr++ = r.right;
|
---|
1117 | *mLockPtr++ = r.bottom;
|
---|
1118 |
|
---|
1119 | // Left-bottom
|
---|
1120 | // Positions
|
---|
1121 | *mLockPtr++ = offsets[2].x + bb.mPosition.x;
|
---|
1122 | *mLockPtr++ = offsets[2].y + bb.mPosition.y;
|
---|
1123 | *mLockPtr++ = offsets[2].z + bb.mPosition.z;
|
---|
1124 | // Colour
|
---|
1125 | // Convert float* to RGBA*
|
---|
1126 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1127 | *pCol++ = colour;
|
---|
1128 | // Update lock pointer
|
---|
1129 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1130 | // Texture coords
|
---|
1131 | *mLockPtr++ = r.left;
|
---|
1132 | *mLockPtr++ = r.top;
|
---|
1133 |
|
---|
1134 | // Right-bottom
|
---|
1135 | // Positions
|
---|
1136 | *mLockPtr++ = offsets[3].x + bb.mPosition.x;
|
---|
1137 | *mLockPtr++ = offsets[3].y + bb.mPosition.y;
|
---|
1138 | *mLockPtr++ = offsets[3].z + bb.mPosition.z;
|
---|
1139 | // Colour
|
---|
1140 | // Convert float* to RGBA*
|
---|
1141 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1142 | *pCol++ = colour;
|
---|
1143 | // Update lock pointer
|
---|
1144 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1145 | // Texture coords
|
---|
1146 | *mLockPtr++ = r.right;
|
---|
1147 | *mLockPtr++ = r.top;
|
---|
1148 | }
|
---|
1149 | else if (mRotationType == BBR_VERTEX)
|
---|
1150 | {
|
---|
1151 | // TODO: Cache axis when billboard type is BBT_POINT or BBT_PERPENDICULAR_COMMON
|
---|
1152 | Vector3 axis = (offsets[3] - offsets[0]).crossProduct(offsets[2] - offsets[1]).normalisedCopy();
|
---|
1153 |
|
---|
1154 | Quaternion rotation(bb.mRotation, axis);
|
---|
1155 | Vector3 pt;
|
---|
1156 |
|
---|
1157 | // Left-top
|
---|
1158 | // Positions
|
---|
1159 | pt = rotation * offsets[0];
|
---|
1160 | *mLockPtr++ = pt.x + bb.mPosition.x;
|
---|
1161 | *mLockPtr++ = pt.y + bb.mPosition.y;
|
---|
1162 | *mLockPtr++ = pt.z + bb.mPosition.z;
|
---|
1163 | // Colour
|
---|
1164 | // Convert float* to RGBA*
|
---|
1165 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1166 | *pCol++ = colour;
|
---|
1167 | // Update lock pointer
|
---|
1168 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1169 | // Texture coords
|
---|
1170 | *mLockPtr++ = r.left;
|
---|
1171 | *mLockPtr++ = r.bottom;
|
---|
1172 |
|
---|
1173 | // Right-top
|
---|
1174 | // Positions
|
---|
1175 | pt = rotation * offsets[1];
|
---|
1176 | *mLockPtr++ = pt.x + bb.mPosition.x;
|
---|
1177 | *mLockPtr++ = pt.y + bb.mPosition.y;
|
---|
1178 | *mLockPtr++ = pt.z + bb.mPosition.z;
|
---|
1179 | // Colour
|
---|
1180 | // Convert float* to RGBA*
|
---|
1181 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1182 | *pCol++ = colour;
|
---|
1183 | // Update lock pointer
|
---|
1184 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1185 | // Texture coords
|
---|
1186 | *mLockPtr++ = r.right;
|
---|
1187 | *mLockPtr++ = r.bottom;
|
---|
1188 |
|
---|
1189 | // Left-bottom
|
---|
1190 | // Positions
|
---|
1191 | pt = rotation * offsets[2];
|
---|
1192 | *mLockPtr++ = pt.x + bb.mPosition.x;
|
---|
1193 | *mLockPtr++ = pt.y + bb.mPosition.y;
|
---|
1194 | *mLockPtr++ = pt.z + bb.mPosition.z;
|
---|
1195 | // Colour
|
---|
1196 | // Convert float* to RGBA*
|
---|
1197 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1198 | *pCol++ = colour;
|
---|
1199 | // Update lock pointer
|
---|
1200 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1201 | // Texture coords
|
---|
1202 | *mLockPtr++ = r.left;
|
---|
1203 | *mLockPtr++ = r.top;
|
---|
1204 |
|
---|
1205 | // Right-bottom
|
---|
1206 | // Positions
|
---|
1207 | pt = rotation * offsets[3];
|
---|
1208 | *mLockPtr++ = pt.x + bb.mPosition.x;
|
---|
1209 | *mLockPtr++ = pt.y + bb.mPosition.y;
|
---|
1210 | *mLockPtr++ = pt.z + bb.mPosition.z;
|
---|
1211 | // Colour
|
---|
1212 | // Convert float* to RGBA*
|
---|
1213 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1214 | *pCol++ = colour;
|
---|
1215 | // Update lock pointer
|
---|
1216 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1217 | // Texture coords
|
---|
1218 | *mLockPtr++ = r.right;
|
---|
1219 | *mLockPtr++ = r.top;
|
---|
1220 | }
|
---|
1221 | else
|
---|
1222 | {
|
---|
1223 | const Real cos_rot ( Math::Cos(bb.mRotation) );
|
---|
1224 | const Real sin_rot ( Math::Sin(bb.mRotation) );
|
---|
1225 |
|
---|
1226 | float width = (r.right-r.left)/2;
|
---|
1227 | float height = (r.top-r.bottom)/2;
|
---|
1228 | float mid_u = r.left+width;
|
---|
1229 | float mid_v = r.bottom+height;
|
---|
1230 |
|
---|
1231 | float cos_rot_w = cos_rot * width;
|
---|
1232 | float cos_rot_h = cos_rot * height;
|
---|
1233 | float sin_rot_w = sin_rot * width;
|
---|
1234 | float sin_rot_h = sin_rot * height;
|
---|
1235 |
|
---|
1236 | // Left-top
|
---|
1237 | // Positions
|
---|
1238 | *mLockPtr++ = offsets[0].x + bb.mPosition.x;
|
---|
1239 | *mLockPtr++ = offsets[0].y + bb.mPosition.y;
|
---|
1240 | *mLockPtr++ = offsets[0].z + bb.mPosition.z;
|
---|
1241 | // Colour
|
---|
1242 | // Convert float* to RGBA*
|
---|
1243 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1244 | *pCol++ = colour;
|
---|
1245 | // Update lock pointer
|
---|
1246 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1247 | // Texture coords
|
---|
1248 | *mLockPtr++ = mid_u - cos_rot_w + sin_rot_h;
|
---|
1249 | *mLockPtr++ = mid_v - sin_rot_w - cos_rot_h;
|
---|
1250 |
|
---|
1251 | // Right-top
|
---|
1252 | // Positions
|
---|
1253 | *mLockPtr++ = offsets[1].x + bb.mPosition.x;
|
---|
1254 | *mLockPtr++ = offsets[1].y + bb.mPosition.y;
|
---|
1255 | *mLockPtr++ = offsets[1].z + bb.mPosition.z;
|
---|
1256 | // Colour
|
---|
1257 | // Convert float* to RGBA*
|
---|
1258 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1259 | *pCol++ = colour;
|
---|
1260 | // Update lock pointer
|
---|
1261 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1262 | // Texture coords
|
---|
1263 | *mLockPtr++ = mid_u + cos_rot_w + sin_rot_h;
|
---|
1264 | *mLockPtr++ = mid_v + sin_rot_w - cos_rot_h;
|
---|
1265 |
|
---|
1266 | // Left-bottom
|
---|
1267 | // Positions
|
---|
1268 | *mLockPtr++ = offsets[2].x + bb.mPosition.x;
|
---|
1269 | *mLockPtr++ = offsets[2].y + bb.mPosition.y;
|
---|
1270 | *mLockPtr++ = offsets[2].z + bb.mPosition.z;
|
---|
1271 | // Colour
|
---|
1272 | // Convert float* to RGBA*
|
---|
1273 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1274 | *pCol++ = colour;
|
---|
1275 | // Update lock pointer
|
---|
1276 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1277 | // Texture coords
|
---|
1278 | *mLockPtr++ = mid_u - cos_rot_w - sin_rot_h;
|
---|
1279 | *mLockPtr++ = mid_v - sin_rot_w + cos_rot_h;
|
---|
1280 |
|
---|
1281 | // Right-bottom
|
---|
1282 | // Positions
|
---|
1283 | *mLockPtr++ = offsets[3].x + bb.mPosition.x;
|
---|
1284 | *mLockPtr++ = offsets[3].y + bb.mPosition.y;
|
---|
1285 | *mLockPtr++ = offsets[3].z + bb.mPosition.z;
|
---|
1286 | // Colour
|
---|
1287 | // Convert float* to RGBA*
|
---|
1288 | pCol = static_cast<RGBA*>(static_cast<void*>(mLockPtr));
|
---|
1289 | *pCol++ = colour;
|
---|
1290 | // Update lock pointer
|
---|
1291 | mLockPtr = static_cast<float*>(static_cast<void*>(pCol));
|
---|
1292 | // Texture coords
|
---|
1293 | *mLockPtr++ = mid_u + cos_rot_w - sin_rot_h;
|
---|
1294 | *mLockPtr++ = mid_v + sin_rot_w + cos_rot_h;
|
---|
1295 | }
|
---|
1296 |
|
---|
1297 | }
|
---|
1298 | //-----------------------------------------------------------------------
|
---|
1299 | void BillboardSet::genVertOffsets(Real inleft, Real inright, Real intop, Real inbottom,
|
---|
1300 | Real width, Real height, const Vector3& x, const Vector3& y, Vector3* pDestVec)
|
---|
1301 | {
|
---|
1302 | Vector3 vLeftOff, vRightOff, vTopOff, vBottomOff;
|
---|
1303 | /* Calculate default offsets. Scale the axes by
|
---|
1304 | parametric offset and dimensions, ready to be added to
|
---|
1305 | positions.
|
---|
1306 | */
|
---|
1307 |
|
---|
1308 | vLeftOff = x * ( inleft * width );
|
---|
1309 | vRightOff = x * ( inright * width );
|
---|
1310 | vTopOff = y * ( intop * height );
|
---|
1311 | vBottomOff = y * ( inbottom * height );
|
---|
1312 |
|
---|
1313 | // Make final offsets to vertex positions
|
---|
1314 | pDestVec[0] = vLeftOff + vTopOff;
|
---|
1315 | pDestVec[1] = vRightOff + vTopOff;
|
---|
1316 | pDestVec[2] = vLeftOff + vBottomOff;
|
---|
1317 | pDestVec[3] = vRightOff + vBottomOff;
|
---|
1318 |
|
---|
1319 | }
|
---|
1320 | //-----------------------------------------------------------------------
|
---|
1321 | const String& BillboardSet::getMovableType(void) const
|
---|
1322 | {
|
---|
1323 | return BillboardSetFactory::FACTORY_TYPE_NAME;
|
---|
1324 | }
|
---|
1325 | //-----------------------------------------------------------------------
|
---|
1326 | Real BillboardSet::getSquaredViewDepth(const Camera* const cam) const
|
---|
1327 | {
|
---|
1328 | assert(mParentNode);
|
---|
1329 | return mParentNode->getSquaredViewDepth(cam);
|
---|
1330 | }
|
---|
1331 | //-----------------------------------------------------------------------
|
---|
1332 | Real BillboardSet::getBoundingRadius(void) const
|
---|
1333 | {
|
---|
1334 | return mBoundingRadius;
|
---|
1335 | }
|
---|
1336 | //-----------------------------------------------------------------------
|
---|
1337 | const LightList& BillboardSet::getLights(void) const
|
---|
1338 | {
|
---|
1339 | // It's actually quite unlikely that this will be called,
|
---|
1340 | // because most billboards are unlit, but here we go anyway
|
---|
1341 | return getParentSceneNode()->findLights(this->getBoundingRadius());
|
---|
1342 | }
|
---|
1343 |
|
---|
1344 | void BillboardSet::setTextureCoords( Ogre::FloatRect const * coords, uint16 numCoords )
|
---|
1345 | {
|
---|
1346 | if( !numCoords || !coords ) {
|
---|
1347 | setTextureStacksAndSlices( 1, 1 );
|
---|
1348 | }
|
---|
1349 | // clear out any previous allocation (as vectors may not shrink)
|
---|
1350 | TextureCoordSets().swap( mTextureCoords );
|
---|
1351 | // make room
|
---|
1352 | mTextureCoords.resize( numCoords );
|
---|
1353 | // copy in data
|
---|
1354 | std::copy( coords, coords+numCoords, &mTextureCoords.front() );
|
---|
1355 | }
|
---|
1356 |
|
---|
1357 | void BillboardSet::setTextureStacksAndSlices( uchar stacks, uchar slices )
|
---|
1358 | {
|
---|
1359 | if( stacks == 0 ) stacks = 1;
|
---|
1360 | if( slices == 0 ) slices = 1;
|
---|
1361 | // clear out any previous allocation (as vectors may not shrink)
|
---|
1362 | TextureCoordSets().swap( mTextureCoords );
|
---|
1363 | // make room
|
---|
1364 | mTextureCoords.resize( (size_t)stacks * slices );
|
---|
1365 | unsigned int coordIndex = 0;
|
---|
1366 | // spread the U and V coordinates across the rects
|
---|
1367 | for( uint v = 0; v < stacks; ++v ) {
|
---|
1368 | // (float)X / X is guaranteed to be == 1.0f for X up to 8 million, so
|
---|
1369 | // our range of 1..256 is quite enough to guarantee perfect coverage.
|
---|
1370 | float top = (float)v / (float)stacks;
|
---|
1371 | float bottom = ((float)v + 1) / (float)stacks;
|
---|
1372 | for( uint u = 0; u < slices; ++u ) {
|
---|
1373 | Ogre::FloatRect & r = mTextureCoords[coordIndex];
|
---|
1374 | r.left = (float)u / (float)slices;
|
---|
1375 | r.bottom = bottom;
|
---|
1376 | r.right = ((float)u + 1) / (float)slices;
|
---|
1377 | r.top = top;
|
---|
1378 | ++coordIndex;
|
---|
1379 | }
|
---|
1380 | }
|
---|
1381 | assert( coordIndex == (size_t)stacks * slices );
|
---|
1382 | }
|
---|
1383 | //-----------------------------------------------------------------------
|
---|
1384 | Ogre::FloatRect const * BillboardSet::getTextureCoords( uint16 * oNumCoords )
|
---|
1385 | {
|
---|
1386 | *oNumCoords = (uint16)mTextureCoords.size();
|
---|
1387 | // std::vector<> is guaranteed to be contiguous
|
---|
1388 | return &mTextureCoords.front();
|
---|
1389 | }
|
---|
1390 | //-----------------------------------------------------------------------
|
---|
1391 | void BillboardSet::setPointRenderingEnabled(bool enabled)
|
---|
1392 | {
|
---|
1393 | if (enabled != mPointRendering)
|
---|
1394 | {
|
---|
1395 | mPointRendering = enabled;
|
---|
1396 | // Different buffer structure (1 or 4 verts per billboard)
|
---|
1397 | _destroyBuffers();
|
---|
1398 | }
|
---|
1399 | }
|
---|
1400 | //-----------------------------------------------------------------------
|
---|
1401 | //-----------------------------------------------------------------------
|
---|
1402 | String BillboardSetFactory::FACTORY_TYPE_NAME = "BillboardSet";
|
---|
1403 | //-----------------------------------------------------------------------
|
---|
1404 | const String& BillboardSetFactory::getType(void) const
|
---|
1405 | {
|
---|
1406 | return FACTORY_TYPE_NAME;
|
---|
1407 | }
|
---|
1408 | //-----------------------------------------------------------------------
|
---|
1409 | MovableObject* BillboardSetFactory::createInstanceImpl( const String& name,
|
---|
1410 | const NameValuePairList* params)
|
---|
1411 | {
|
---|
1412 | // may have parameters
|
---|
1413 | bool externalData = false;
|
---|
1414 | unsigned int poolSize = 0;
|
---|
1415 |
|
---|
1416 | if (params != 0)
|
---|
1417 | {
|
---|
1418 | NameValuePairList::const_iterator ni = params->find("poolSize");
|
---|
1419 | if (ni != params->end())
|
---|
1420 | {
|
---|
1421 | poolSize = StringConverter::parseUnsignedInt(ni->second);
|
---|
1422 | }
|
---|
1423 | ni = params->find("externalData");
|
---|
1424 | if (ni != params->end())
|
---|
1425 | {
|
---|
1426 | externalData = StringConverter::parseBool(ni->second);
|
---|
1427 | }
|
---|
1428 |
|
---|
1429 | }
|
---|
1430 |
|
---|
1431 | if (poolSize > 0)
|
---|
1432 | {
|
---|
1433 | return new BillboardSet(name, poolSize, externalData);
|
---|
1434 | }
|
---|
1435 | else
|
---|
1436 | {
|
---|
1437 | return new BillboardSet(name);
|
---|
1438 | }
|
---|
1439 |
|
---|
1440 | }
|
---|
1441 | //-----------------------------------------------------------------------
|
---|
1442 | void BillboardSetFactory::destroyInstance( MovableObject* obj)
|
---|
1443 | {
|
---|
1444 | delete obj;
|
---|
1445 | }
|
---|
1446 |
|
---|
1447 |
|
---|
1448 | }
|
---|