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00001 
+00007 /* Copyright, 2001 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_MESH_MULTI_LOD_INSTANCE_H
+00027 #define NL_MESH_MULTI_LOD_INSTANCE_H
+00028 
+00029 #include "nel/misc/types_nl.h"
+00030 #include "nel/misc/class_id.h"
+00031 
+00032 #include "3d/mesh_base_instance.h"
+00033 
+00034 
+00035 namespace NL3D 
+00036 {
+00037 
+00038 // ***************************************************************************
+00039 // ClassIds.
+00040 const NLMISC::CClassId          MeshMultiLodInstanceId=NLMISC::CClassId(0x1ade6ef8, 0x75c5a84);
+00041 
+00042 
+00043 // ***************************************************************************
+00051 class CMeshMultiLodInstance : public CMeshBaseInstance
+00052 {
+00053 public:
+00054         
+00056         CMeshMultiLodInstance ();
+00057 
+00059         ~CMeshMultiLodInstance ();
+00060 
+00063         virtual void            changeMRMDistanceSetup(float distanceFinest, float distanceMiddle, float distanceCoarsest);
+00064 
+00065 
+00068         void                            deleteCoarseInstances();
+00069 
+00070 
+00071         enum
+00072         {
+00073                 Lod0Blend               =       0x1,
+00074                 Coarse0Loaded   =       0x2,
+00075                 Coarse1Loaded   =       0x4,
+00076         };
+00077 
+00079         static  void    registerBasic();
+00080 
+00082         uint64                  _LastLodMatrixDate[2];
+00083 
+00085         sint64                  _LastLodLightingDate[2];
+00086 
+00087 
+00088         // return the contribution of lights (for Coarse Mesh render).
+00089         const CLightContribution        &getLightContribution() {return _LightContribution;}
+00090 
+00091         // Override the shape coarse mesh distance (-1 if not overriden)
+00092         void                     setCoarseMeshDist(float dist) { _CoarseMeshDistance = dist; }
+00093         float            getCoarseMeshDist() const { return _CoarseMeshDistance; }
+00094 
+00095         // From CTransformShape
+00096         virtual float                           getNumTriangles (float distance);
+00097 
+00098 private:
+00099 
+00101         uint    Lod0;
+00102         uint    Lod1;
+00103 
+00105         uint    Flags;
+00106 
+00108         uint64  CoarseMeshId[2];
+00109 
+00111         float   PolygonCountLod0;
+00112         float   PolygonCountLod1;
+00113 
+00115         float   BlendFactor;
+00116 
+00118         float   _CoarseMeshDistance;
+00119 
+00120         static IModel   *creator() {return new CMeshMultiLodInstance;}
+00121         friend  class CMeshMultiLod;
+00122         friend  class CMeshMultiLodBalancingObs;
+00123 
+00125         CRGBA                   getCoarseMeshLighting();
+00126 };
+00127 
+00128 
+00129 // ***************************************************************************
+00140 class   CMeshMultiLodClipObs : public CTransformShapeClipObs
+00141 {
+00142 public:
+00143 
+00145         virtual bool    clip(IBaseClipObs *caller);
+00146 
+00147         // override method. If distMaxClip, then must delete coarse Instances.
+00148         virtual void    forceClip(TClipReason clipReason);
+00149 
+00150 
+00151         static IObs     *creator() {return new CMeshMultiLodClipObs;}
+00152 };
+00153 
+00154 
+00155 // ***************************************************************************
+00166 class   CMeshMultiLodBalancingObs : public CTransformShapeLoadBalancingObs
+00167 {
+00168 public:
+00169 
+00174         virtual void    traverse(IObs *caller);
+00175 
+00176         static IObs     *creator() {return new CMeshMultiLodBalancingObs;}
+00177 
+00178 
+00179 protected:
+00180 };
+00181 
+00182 
+00183 } // NL3D
+00184 
+00185 
+00186 #endif // NL_MESH_MULTI_LOD_INSTANCE_H
+00187 
+00188 /* End of mesh_multi_lod_instance.h */
+