OgrePixelCountLodStrategy.h
Go to the documentation of this file.
1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4  (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
6 
7 Copyright (c) 2000-2013 Torus Knot Software Ltd
8 
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
11 in the Software without restriction, including without limitation the rights
12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 copies of the Software, and to permit persons to whom the Software is
14 furnished to do so, subject to the following conditions:
15 
16 The above copyright notice and this permission notice shall be included in
17 all copies or substantial portions of the Software.
18 
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 THE SOFTWARE.
26 -----------------------------------------------------------------------------
27 */
28 #ifndef __Pixel_Count_Lod_Strategy_H__
29 #define __Pixel_Count_Lod_Strategy_H__
30 
31 #include "OgrePrerequisites.h"
32 
33 #include "OgreLodStrategy.h"
34 #include "OgreSingleton.h"
35 #include "OgreNode.h"
36 
37 namespace Ogre {
38 
47  {
48  protected:
50  virtual Real getValueImpl(const MovableObject *movableObject, const Camera *camera) const = 0;
51 
52  public:
54  PixelCountLodStrategy(const String& name);
55 
57  virtual Real getBaseValue() const;
58 
60  virtual Real transformBias(Real factor) const;
61 
63  virtual ushort getIndex(Real value, const Mesh::MeshLodUsageList& meshLodUsageList) const;
64 
66  virtual ushort getIndex(Real value, const Material::LodValueList& materialLodValueList) const;
67 
69  virtual void sort(Mesh::MeshLodUsageList& meshLodUsageList) const;
70 
72  virtual bool isSorted(const Mesh::LodValueList& values) const;
73  };
77  class _OgreExport AbsolutePixelCountLodStrategy : public PixelCountLodStrategy, public Singleton<AbsolutePixelCountLodStrategy>
78  {
79  public:
82 
84  Real getValueImpl(const MovableObject *movableObject, const Camera *camera) const;
85 
101  static AbsolutePixelCountLodStrategy& getSingleton(void);
117  static AbsolutePixelCountLodStrategy* getSingletonPtr(void);
118  };
122  class _OgreExport ScreenRatioPixelCountLodStrategy : public PixelCountLodStrategy, public Singleton<ScreenRatioPixelCountLodStrategy>
123  {
124  public:
127 
129  Real getValueImpl(const MovableObject *movableObject, const Camera *camera) const;
130 
146  static ScreenRatioPixelCountLodStrategy& getSingleton(void);
162  static ScreenRatioPixelCountLodStrategy* getSingletonPtr(void);
163  };
167 } // namespace
168 
169 #endif

Copyright © 2012 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Oct 16 2013 14:35:43