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00001 
00007 /* Copyright, 2000 Nevrax Ltd.
00008  *
00009  * This file is part of NEVRAX NEL.
00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
00011  * it under the terms of the GNU General Public License as published by
00012  * the Free Software Foundation; either version 2, or (at your option)
00013  * any later version.
00014 
00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00018  * General Public License for more details.
00019 
00020  * You should have received a copy of the GNU General Public License
00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00023  * MA 02111-1307, USA.
00024  */
00025 
00026 #ifndef NL_CLIP_TRAV_H
00027 #define NL_CLIP_TRAV_H
00028 
00029 #include "3d/trav_scene.h"
00030 #include "3d/quad_grid.h"
00031 #include "nel/misc/vector.h"
00032 #include "nel/misc/plane.h"
00033 #include "nel/misc/matrix.h"
00034 
00035 
00036 namespace       NL3D
00037 {
00038 
00039 using NLMISC::CVector;
00040 using NLMISC::CPlane;
00041 using NLMISC::CMatrix;
00042 
00043 
00044 class   IBaseClipObs;
00045 class   CRenderTrav;
00046 class   CAnimDetailTrav;
00047 class   CLoadBalancingTrav;
00048 class   CHrcTrav;
00049 class   CLightTrav;
00050 class   CCluster;
00051 class   CInstanceGroup;
00052 class   CCamera;
00053 class   CQuadGridClipManager;
00054 class   CRootModel;
00055 class   CTransformClipObs;
00056 
00057 
00058 // ***************************************************************************
00059 // This is the order of clip planes.
00060 #define NL3D_CLIP_PLANE_NEAR    0
00061 #define NL3D_CLIP_PLANE_FAR             1
00062 #define NL3D_CLIP_PLANE_LEFT    2
00063 #define NL3D_CLIP_PLANE_TOP             3
00064 #define NL3D_CLIP_PLANE_RIGHT   4
00065 #define NL3D_CLIP_PLANE_BOTTOM  5
00066 
00067 
00068 // ***************************************************************************
00069 // ClassIds.
00070 const NLMISC::CClassId          ClipTravId=NLMISC::CClassId(0x135208fe, 0x225334fc);
00071 
00072 // ***************************************************************************
00091 class CClipTrav : public ITravCameraScene
00092 {
00093 public:
00094 
00096         CClipTrav();
00097         ~CClipTrav();
00098 
00100 
00101         IObs                            *createDefaultObs () const;
00102         NLMISC::CClassId        getClassId () const {return ClipTravId;}
00103         sint                            getRenderOrder () const {return 2000;}
00104         void                            traverse ();
00106 
00107         void registerCluster (CCluster* pCluster);
00108         void unregisterCluster (CCluster* pCluster);
00109 
00111         void setHrcTrav (CHrcTrav* trav);
00112         void setAnimDetailTrav(CAnimDetailTrav *trav);
00113         void setLoadBalancingTrav(CLoadBalancingTrav *trav);
00114         void setLightTrav (CLightTrav* trav);
00115         void setRenderTrav (CRenderTrav* trav);
00116         void setQuadGridClipManager(CQuadGridClipManager *mgr);
00117 
00118 
00119         bool fullSearch (std::vector<CCluster*>& result, CInstanceGroup *pIG, CVector& pos);
00120 
00122 
00123         // For ClipObservers only. NB: list is cleared at begining of traverse().
00124         void                            addVisibleObs(CTransformClipObs *obs);
00126 
00127 
00128         void                            setSonsOfAncestorSkeletonModelGroup(CRootModel *m);
00129 
00130 public:
00131 
00136 
00137         std::vector<CPlane>     ViewPyramid;
00139         std::vector<CPlane>     WorldFrustumPyramid;
00141         std::vector<CPlane>     WorldPyramid;   
00143         CHrcTrav                        *HrcTrav;
00144         CAnimDetailTrav         *AnimDetailTrav;
00145         CLoadBalancingTrav      *LoadBalancingTrav;
00146         CLightTrav                      *LightTrav;
00147         CRenderTrav                     *RenderTrav;
00149         sint64 CurrentDate;
00150 
00151         CCluster *RootCluster;
00152         CCamera *Camera;
00153         
00154         CQuadGrid<CCluster*> Accel;
00155 
00159         bool                            ForceNoFrustumClip;
00160 
00161 
00162         // For skeleton stickObject.
00163         CRootModel              *SonsOfAncestorSkeletonModelGroup;
00164 
00165 private:
00166         friend class    IBaseClipObs;
00167 
00168         std::vector<CTransformClipObs*> _VisibleList;
00169 
00170         CQuadGridClipManager            *_QuadGridClipManager;
00171 };
00172 
00173 
00174 
00175 }
00176 
00177 
00178 #endif // NL_CLIP_TRAV_H
00179 
00180 /* End of clip_trav.h */