# OgreDistanceLodStrategy.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
    00009 Permission is hereby granted, free of charge, to any person obtaining a copy
    00010 of this software and associated documentation files (the "Software"), to deal
    00011 in the Software without restriction, including without limitation the rights
    00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00013 copies of the Software, and to permit persons to whom the Software is
    00014 furnished to do so, subject to the following conditions:
    00015
    00016 The above copyright notice and this permission notice shall be included in
    00017 all copies or substantial portions of the Software.
    00018
    00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00025 THE SOFTWARE.
    00026 -----------------------------------------------------------------------------
    00027 */
    00028 #ifndef __Distance_Lod_Strategy_H__
    00029 #define __Distance_Lod_Strategy_H__
    00030
    00031 #include "OgrePrerequisites.h"
    00032
    00033 #include "OgreLodStrategy.h"
    00034 #include "OgreSingleton.h"
    00035 #include "OgreNode.h"
    00036
    00037 namespace Ogre {
    00046     class _OgreExport DistanceLodStrategy : public LodStrategy, public Singleton<DistanceLodStrategy>
    00047     {
    00048     protected:
    00050         virtual Real getValueImpl(const MovableObject *movableObject, const Camera *camera) const;
    00051
    00052     public:
    00054         DistanceLodStrategy();
    00055
    00057         virtual Real getBaseValue() const;
    00058
    00060         virtual Real transformBias(Real factor) const;
    00061
    00063         virtual Real transformUserValue(Real userValue) const;
    00064
    00066         virtual ushort getIndex(Real value, const Mesh::MeshLodUsageList& meshLodUsageList) const;
    00067
    00069         virtual ushort getIndex(Real value, const Material::LodValueList& materialLodValueList) const;
    00070
    00072         virtual void sort(Mesh::MeshLodUsageList& meshLodUsageList) const;
    00073
    00075         virtual bool isSorted(const Mesh::LodValueList& values) const;
    00076
    00084         void setReferenceView(Real viewportWidth, Real viewportHeight, Radian fovY);
    00085
    00089         void setReferenceViewEnabled(bool value);
    00090
    00092         bool getReferenceViewEnabled() const;
    00093
    00109         static DistanceLodStrategy& getSingleton(void);
    00125         static DistanceLodStrategy* getSingletonPtr(void);
    00126
    00127     private:
    00128         bool mReferenceViewEnabled;
    00129         Real mReferenceViewValue;
    00130
    00131     };
    00135 } // namespace
    00136
    00137 #endif

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun May 8 2011 20:28:08