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; 00100 00116 Matrix4 calculateLiSPSM(const Matrix4& lightSpace, const PointListBody& bodyB, 00117 const PointListBody& bodyLVS, const SceneManager& sm, 00118 const Camera& cam, const Light& light) const; 00119 00144 Real calculateNOpt(const Matrix4& lightSpace, const AxisAlignedBox& bodyBABB_ls, 00145 const PointListBody& bodyLVS, const Camera& cam) const; 00146 00149 Real calculateNOptSimple(const PointListBody& bodyLVS, 00150 const Camera& cam) const; 00151 00162 Vector3 calculateZ0_ls(const Matrix4& lightSpace, const Vector3& e, Real bodyB_zMax_ls, 00163 const Camera& cam) const; 00164 00170 Matrix4 buildFrustumProjection(Real left, Real right, Real bottom, 00171 Real top, Real near, Real far) const; 00172 00173 public: 00178 LiSPSMShadowCameraSetup(void); 00179 00184 virtual ~LiSPSMShadowCameraSetup(void); 00185 00192 virtual void getShadowCamera(const SceneManager *sm, const Camera *cam, 00193 const Viewport *vp, const Light *light, Camera *texCam) const; 00194 00207 virtual void setOptimalAdjustFactor(Real n) { mOptAdjustFactor = n; } 00211 virtual Real getOptimalAdjustFactor() const { return mOptAdjustFactor; } 00215 virtual void setUseSimpleOptimalAdjust(bool s) { mUseSimpleNOpt = s; } 00219 virtual bool getUseSimpleOptimalAdjust() const { return mUseSimpleNOpt; } 00220 00221 }; 00222 00223 } 00224 00225 #endif 00226
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Last modified Sun Sep 30 10:50:57 2007