root/OpenSceneGraph/trunk/include/osgShadow/MinimalCullBoundsShadowMap @ 13041

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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * OpenSceneGraph Public License for more details.
12 *
13 * ViewDependentShadow codes Copyright (C) 2008 Wojciech Lewandowski
14 * Thanks to to my company http://www.ai.com.pl for allowing me free this work.
15*/
16
17#ifndef OSGSHADOW_MINIMALCULLBOUNDSSHADOWMAP
18#define OSGSHADOW_MINIMALCULLBOUNDSSHADOWMAP 1
19
20#include <osgShadow/MinimalShadowMap>
21
22namespace osgShadow {
23
24class OSGSHADOW_EXPORT MinimalCullBoundsShadowMap
25    : public MinimalShadowMap
26{
27    public :
28        /** Convenient typedef used in definition of ViewData struct and methods */
29        typedef MinimalCullBoundsShadowMap ThisClass;
30        /** Convenient typedef used in definition of ViewData struct and methods */
31        typedef MinimalShadowMap           BaseClass;
32
33        /** Classic OSG constructor */
34        MinimalCullBoundsShadowMap();
35
36        /** Classic OSG cloning constructor */
37        MinimalCullBoundsShadowMap(
38            const MinimalCullBoundsShadowMap& mcbsm,
39            const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
40
41        /** Declaration of standard OSG object methods */
42        META_Object( osgShadow, MinimalCullBoundsShadowMap );
43
44    protected:
45        /** Classic protected OSG destructor */
46        virtual ~MinimalCullBoundsShadowMap(void);
47
48        struct OSGSHADOW_EXPORT ViewData: public MinimalShadowMap::ViewData
49        {
50            virtual void init( ThisClass * st, osgUtil::CullVisitor * cv );
51
52            virtual void cullShadowReceivingScene(  );
53
54            virtual void aimShadowCastingCamera( const osg::Light *light,
55                const osg::Vec4 &worldLightPos,
56                const osg::Vec3 &worldLightDir,
57                const osg::Vec3 &worldLightUp
58                = osg::Vec3(0,1,0) );
59
60            typedef std::vector< osgUtil::RenderLeaf* > RenderLeafList;
61
62            static unsigned RemoveOldRenderLeaves
63                ( RenderLeafList &rllNew, RenderLeafList &rllOld );
64
65            static unsigned RemoveIgnoredRenderLeaves( RenderLeafList &rll );
66
67            static osg::BoundingBox ComputeRenderLeavesBounds
68                ( RenderLeafList &rll, osg::Matrix & projectionToWorld );
69
70            static osg::BoundingBox ComputeRenderLeavesBounds
71                ( RenderLeafList &rll, osg::Matrix & projectionToWorld, osg::Polytope & polytope );
72
73            static void GetRenderLeaves
74                ( osgUtil::RenderBin *rb, RenderLeafList &rll );
75        };
76
77        META_ViewDependentShadowTechniqueData( ThisClass, ThisClass::ViewData )
78};
79
80} // namespace osgShadow
81
82#endif
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