# OgreShadowCameraSetupLiSPSM.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) 2000-2009 Torus Knot Software Ltd
    00008 Copyright (c) 2006 Matthias Fink, netAllied GmbH <matthias.fink@web.de>
    00009
    00010 Permission is hereby granted, free of charge, to any person obtaining a copy
    00011 of this software and associated documentation files (the "Software"), to deal
    00012 in the Software without restriction, including without limitation the rights
    00013 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00014 copies of the Software, and to permit persons to whom the Software is
    00015 furnished to do so, subject to the following conditions:
    00016
    00017 The above copyright notice and this permission notice shall be included in
    00018 all copies or substantial portions of the Software.
    00019
    00020 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00021 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00022 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00023 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00024 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00025 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00026 THE SOFTWARE.
    00027 -----------------------------------------------------------------------------
    00028 */
    00029 #ifndef __ShadowCameraSetupLiSPSM_H__
    00030 #define __ShadowCameraSetupLiSPSM_H__
    00031
    00032 #include "OgrePrerequisites.h"
    00033 #include "OgreShadowCameraSetupFocused.h"
    00034
    00035
    00036 namespace Ogre
    00037 {
    00038
    00098     class _OgreExport LiSPSMShadowCameraSetup : public FocusedShadowCameraSetup
    00099     {
    00100     protected:
    00102         Real mOptAdjustFactor;
    00104         bool mUseSimpleNOpt;
    00106         mutable Real mOptAdjustFactorTweak;
    00108         Real mCosCamLightDirThreshold;
    00109
    00125         Matrix4 calculateLiSPSM(const Matrix4& lightSpace, const PointListBody& bodyB,
    00126             const PointListBody& bodyLVS, const SceneManager& sm,
    00127             const Camera& cam, const Light& light) const;
    00128
    00153         Real calculateNOpt(const Matrix4& lightSpace, const AxisAlignedBox& bodyBABB_ls,
    00154             const PointListBody& bodyLVS, const Camera& cam) const;
    00155
    00158         Real calculateNOptSimple(const PointListBody& bodyLVS,
    00159             const Camera& cam) const;
    00160
    00171         Vector3 calculateZ0_ls(const Matrix4& lightSpace, const Vector3& e, Real bodyB_zMax_ls,
    00172             const Camera& cam) const;
    00173
    00179         Matrix4 buildFrustumProjection(Real left, Real right, Real bottom,
    00180             Real top, Real near, Real far) const;
    00181
    00182     public:
    00187         LiSPSMShadowCameraSetup(void);
    00188
    00193         virtual ~LiSPSMShadowCameraSetup(void);
    00194
    00201         virtual void getShadowCamera(const SceneManager *sm, const Camera *cam,
    00202             const Viewport *vp, const Light *light, Camera *texCam, size_t iteration) const;
    00203
    00216         virtual void setOptimalAdjustFactor(Real n) { mOptAdjustFactor = n; }
    00220         virtual Real getOptimalAdjustFactor() const { return mOptAdjustFactor; }
    00224         virtual void setUseSimpleOptimalAdjust(bool s) { mUseSimpleNOpt = s; }
    00228         virtual bool getUseSimpleOptimalAdjust() const { return mUseSimpleNOpt; }
    00229
    00238         virtual void setCameraLightDirectionThreshold(Degree angle);
    00239
    00244         virtual Degree getCameraLightDirectionThreshold() const;
    00245
    00246
    00247     };
    00251 }
    00252
    00253 #endif
    00254

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:52