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 __ShadowCameraSetupLiSPSM_H__ 00031 #define __ShadowCameraSetupLiSPSM_H__ 00032 00033 #include "OgrePrerequisites.h" 00034 #include "OgreShadowCameraSetupFocused.h" 00035 00036 00037 namespace Ogre 00038 { 00039 00093 class _OgreExport LiSPSMShadowCameraSetup : public FocusedShadowCameraSetup 00094 { 00095 protected: 00097 Real mOptAdjustFactor; 00099 bool mUseSimpleNOpt; 00101 mutable Real mOptAdjustFactorTweak; 00103 Real mCosCamLightDirThreshold; 00104 00120 Matrix4 calculateLiSPSM(const Matrix4& lightSpace, const PointListBody& bodyB, 00121 const PointListBody& bodyLVS, const SceneManager& sm, 00122 const Camera& cam, const Light& light) const; 00123 00148 Real calculateNOpt(const Matrix4& lightSpace, const AxisAlignedBox& bodyBABB_ls, 00149 const PointListBody& bodyLVS, const Camera& cam) const; 00150 00153 Real calculateNOptSimple(const PointListBody& bodyLVS, 00154 const Camera& cam) const; 00155 00166 Vector3 calculateZ0_ls(const Matrix4& lightSpace, const Vector3& e, Real bodyB_zMax_ls, 00167 const Camera& cam) const; 00168 00174 Matrix4 buildFrustumProjection(Real left, Real right, Real bottom, 00175 Real top, Real near, Real far) const; 00176 00177 public: 00182 LiSPSMShadowCameraSetup(void); 00183 00188 virtual ~LiSPSMShadowCameraSetup(void); 00189 00196 virtual void getShadowCamera(const SceneManager *sm, const Camera *cam, 00197 const Viewport *vp, const Light *light, Camera *texCam, size_t iteration) const; 00198 00211 virtual void setOptimalAdjustFactor(Real n) { mOptAdjustFactor = n; } 00215 virtual Real getOptimalAdjustFactor() const { return mOptAdjustFactor; } 00219 virtual void setUseSimpleOptimalAdjust(bool s) { mUseSimpleNOpt = s; } 00223 virtual bool getUseSimpleOptimalAdjust() const { return mUseSimpleNOpt; } 00224 00233 virtual void setCameraLightDirectionThreshold(Degree angle); 00234 00239 virtual Degree getCameraLightDirectionThreshold() const; 00240 00241 00242 }; 00243 00244 } 00245 00246 #endif 00247
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Last modified Sun Sep 27 22:02:26 2009