| 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; |
|---|
| 482 | |
|---|
| 483 | if (!mPointRendering && |
|---|
| 484 | (mBillboardType == BBT_ORIENTED_SELF || |
|---|
| 485 | mBillboardType == BBT_PERPENDICULAR_SELF || |
|---|
| 486 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON))) |
|---|
| 487 | { |
|---|
| 488 | // Have to generate axes & offsets per billboard |
|---|
| 489 | genBillboardAxes(&mCamX, &mCamY, &bb); |
|---|
| 490 | } |
|---|
| 491 | |
|---|
| 492 | // If they're all the same size or we're point rendering |
|---|
| 493 | if( mAllDefaultSize || mPointRendering) |
|---|
| 494 | { |
|---|
| 495 | /* No per-billboard checking, just blast through. |
|---|
| 496 | Saves us an if clause every billboard which may |
|---|
| 497 | make a difference. |
|---|
| 498 | */ |
|---|
| 499 | |
|---|
| 500 | if (!mPointRendering && |
|---|
| 501 | (mBillboardType == BBT_ORIENTED_SELF || |
|---|
| 502 | mBillboardType == BBT_PERPENDICULAR_SELF || |
|---|
| 503 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON))) |
|---|
| 504 | { |
|---|
| 505 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff, |
|---|
| 506 | mDefaultWidth, mDefaultHeight, mCamX, mCamY, mVOffset); |
|---|
| 507 | } |
|---|
| 508 | genVertices(mVOffset, bb); |
|---|
| 509 | } |
|---|
| 510 | else // not all default size and not point rendering |
|---|
| 511 | { |
|---|
| 512 | Vector3 vOwnOffset[4]; |
|---|
| 513 | // If it has own dimensions, or self-oriented, gen offsets |
|---|
| 514 | if (mBillboardType == BBT_ORIENTED_SELF || |
|---|
| 515 | mBillboardType == BBT_PERPENDICULAR_SELF || |
|---|
| 516 | bb.mOwnDimensions || |
|---|
| 517 | (mAccurateFacing && mBillboardType != BBT_PERPENDICULAR_COMMON)) |
|---|
| 518 | { |
|---|
| 519 | // Generate using own dimensions |
|---|
| 520 | genVertOffsets(mLeftOff, mRightOff, mTopOff, mBottomOff, |
|---|
| 521 | bb.mWidth, bb.mHeight, mCamX, mCamY, vOwnOffset); |
|---|
| 522 | // Create vertex data |
|---|
| 523 | genVertices(vOwnOffset, bb); |
|---|
| 524 | } |
|---|
| 525 | else // Use default dimension, already computed before the loop, for faster creation |
|---|
| 526 | { |
|---|
| 527 | genVertices(mVOffset, bb); |
|---|
| 528 | } |
|---|
| 529 | } |
|---|
| 530 | // Increment visibles |
|---|
| 531 | mNumVisibleBillboards++; |
|---|
| 532 | } |
|---|
| 533 | //----------------------------------------------------------------------- |
|---|
| 534 | void BillboardSet::endBillboards(void) |
|---|
| 535 | { |
|---|
| 536 | mMainBuf->unlock(); |
|---|
| 537 | } |
|---|
| 538 | //----------------------------------------------------------------------- |
|---|
| 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 | } |
|---|