OgreShadowCameraSetupPSSM.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004 (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2006 Torus Knot Software Ltd
00008 Copyright (c) 2006 Matthias Fink, netAllied GmbH <matthias.fink@web.de>                             
00009 Also see acknowledgements in Readme.html
00010 
00011 This program is free software; you can redistribute it and/or modify it under
00012 the terms of the GNU Lesser General Public License as published by the Free Software
00013 Foundation; either version 2 of the License, or (at your option) any later
00014 version.
00015 
00016 This program is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00018 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00019 
00020 You should have received a copy of the GNU Lesser General Public License along with
00021 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00022 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00023 http://www.gnu.org/copyleft/lesser.txt.
00024 
00025 You may alternatively use this source under the terms of a specific version of
00026 the OGRE Unrestricted License provided you have obtained such a license from
00027 Torus Knot Software Ltd.
00028 -----------------------------------------------------------------------------
00029 */
00030 #ifndef __ShadowCameraSetupPSSM_H__
00031 #define __ShadowCameraSetupPSSM_H__
00032 
00033 #include "OgrePrerequisites.h"
00034 #include "OgreShadowCameraSetupLiSPSM.h"
00035 
00036 namespace Ogre
00037 {
00038 
00050     class _OgreExport PSSMShadowCameraSetup : public Ogre::LiSPSMShadowCameraSetup
00051     {
00052     public:
00053         typedef std::vector<Real> SplitPointList;
00054         typedef std::vector<Real> OptimalAdjustFactorList;
00055 
00056     protected:
00057         size_t mSplitCount;
00058         SplitPointList mSplitPoints;
00059         OptimalAdjustFactorList mOptimalAdjustFactors;
00060         Real mSplitPadding;
00061 
00062         mutable size_t mCurrentIteration;
00063 
00064     public:
00066         PSSMShadowCameraSetup();
00067         ~PSSMShadowCameraSetup();
00068 
00075         void calculateSplitPoints(size_t splitCount, Real nearDist, Real farDist, Real lambda = 0.95);
00076 
00083         void setSplitPoints(const SplitPointList& newSplitPoints);
00084 
00088         void setOptimalAdjustFactor(size_t splitIndex, Real factor);
00089 
00093         void setSplitPadding(Real pad) { mSplitPadding = pad; }
00094 
00098         Real getSplitPadding() const { return mSplitPadding; }
00100         size_t getSplitCount() const { return mSplitCount; }
00101 
00103         virtual void getShadowCamera(const Ogre::SceneManager *sm, const Ogre::Camera *cam,
00104             const Ogre::Viewport *vp, const Ogre::Light *light, Ogre::Camera *texCam, size_t iteration) const;
00105 
00107         inline const SplitPointList& getSplitPoints() const
00108         { return mSplitPoints; }
00109 
00111         inline Real getOptimalAdjustFactor(size_t splitIndex) const
00112         { return mOptimalAdjustFactors[splitIndex]; }
00113 
00115         Real getOptimalAdjustFactor() const;
00116 
00117     };
00118 }
00119 #endif

Copyright © 2008 Torus Knot Software Ltd
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Last modified Sun Sep 27 22:02:26 2009