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diff --git a/sdk/rwsdk/include/d3d8/rppvs.h b/sdk/rwsdk/include/d3d8/rppvs.h
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+/*
+ * Potentially Visible Set plug-in
+ */
+
+/**********************************************************************
+ *
+ * file :     rppvs.h
+ *
+ * abstract : handle culling of worldsectors in RenderWare
+ *
+ **********************************************************************
+ *
+ * This file is a product of Criterion Software Ltd.
+ *
+ * This file is provided as is with no warranties of any kind and is
+ * provided without any obligation on Criterion Software Ltd. or
+ * Canon Inc. to assist in its use or modification.
+ *
+ * Criterion Software Ltd. will not, under any
+ * circumstances, be liable for any lost revenue or other damages arising
+ * from the use of this file.
+ *
+ * Copyright (c) 2001 Criterion Software Ltd.
+ * All Rights Reserved.
+ *
+ * RenderWare is a trademark of Canon Inc.
+ *
+ ************************************************************************/
+
+#ifndef _RPPVS_H
+#define _RPPVS_H
+
+/**
+ * \defgroup rppvs RpPVS
+ * \ingroup pvs
+ *
+ * Geometric Potentially Visible Set Plugin for RenderWare Graphics.
+ */
+
+/****************************************************************************
+ Defines
+ */
+
+typedef RwUInt8     RpPVSVisMap;
+
+#define PVSFROMWORLDSECTOR(sector) \
+    ((RpPVS *)(((char *)(sector))+rpPVSGlobals.sectorOffset))
+
+#define WORLDSECTORFROMPVS(pvs)    \
+    ((RpWorldSector *)(((char *)(pvs))-rpPVSGlobals.sectorOffset))
+
+#define PVSFROMCONSTWORLDSECTOR(sector) \
+    ((const RpPVS *)(((const char *)(sector))+rpPVSGlobals.sectorOffset))
+
+
+#define PVSCACHEFROMWORLD(world) \
+    ((RpPVSCache *)(((char *)(world))+rpPVSGlobals.worldOffset))
+#define PVSCACHEFROMCONSTWORLD(world) \
+    ((const RpPVSCache *)(((const char *)(world))+rpPVSGlobals.worldOffset))
+
+#define PVSVISMAPSETSECTOR(_vismap, _id)        \
+    (_vismap)[(_id) >> 3] |= (1 << ((_id) & 7))
+
+#define PVSVISMAPUNSETSECTOR(_vismap, _id)        \
+    (_vismap)[(_id) >> 3] ^= (1 << ((_id) & 7))
+
+#define PVSVISMAPGETSECTOR(_vismap, _id)        \
+    ((_vismap)[(_id) >> 3] & (1 << ((_id) & 7)))
+
+#define PVSVISMAPLENGTH(_vismaplength, _nosectors) \
+    (_vismaplength) = ((_nosectors + 7) >> 3)
+
+
+/* Progress callback message types */
+#define rpPVSPROGRESSSTART              20
+#define rpPVSPROGRESSUPDATE             12
+#define rpPVSPROGRESSEND                22
+
+/**
+ * \ingroup rppvs
+ * \ref RpPVSProgressCallBack
+ * This typedef sets the callback function for sampling within a world sector.
+ *
+ * \param value     A value between 0.0 and 100.0 to represent the percentage completion.
+ * \param msg       The message may take one of the following:
+ *
+ * \li rpPVSPROGRESSSTART
+ * The PVS creation process is about to start.  The argument value is equal to 0.0.
+ *
+ * \li rpPVSPROGRESSUPDATE
+ * The PVS creation process has finished processing a subsection of the world.
+ * The argument value is equal to the percentage of the world processed up to this point.
+ *
+ * \li rpPVSPROGRESSEND
+ * The PVS creation process has ended.  All world sectors have been processed.
+ * The argument value is equal to 100.0.
+ *
+ * The progress callback may return FALSE to indicate that the generation of PVS data
+ * should terminate. Otherwise, return TRUE to continue.
+ *
+ * The PVS plugin must be attached before using this function.
+ *
+ *
+ */
+typedef             RwBool(*RpPVSProgressCallBack) (RwInt32 msg,
+                                                     RwReal value);
+
+
+/**
+ * \ingroup rppvs
+ * \ref RpPVSCallBack
+ * This typedef sets the callback function for sampling within a world sector.
+ *
+ * \param worldSector       A pointer to the \ref RpWorldSector being sampled.
+ * \param box               The bounding box of the region being sampled.
+ * \param pData             A pointer to private data for the sampling function.
+ */
+typedef RpWorldSector *(*RpPVSCallBack) (RpWorldSector * worldSector,
+                                         const RwBBox * box,
+                                         void *pData);
+
+#define RpPVSCallback                   RpPVSCallBack
+
+typedef struct _RpPVSCallBack _RpPVSCallBack;
+
+#if (!defined(DOXYGEN))
+struct _RpPVSCallBack
+{
+    RpPVSCallBack      callback;
+    void               *data;
+};
+#endif /* (!defined(DOXYGEN)) */
+
+enum _rpPVSPartitionId
+{
+    rpNAPVSPARTITIONID = 0,
+    rpPVSFRONT,
+    rpPVSBACK,
+    rpPVSSPLIT,
+    rpPVSCOPLANAR,
+    rpPVSPARTITIONIDFORCEENUMSIZEINT = RWFORCEENUMSIZEINT
+};
+typedef enum _rpPVSPartitionId _rpPVSPartitionId;
+
+typedef struct _rpPVSPolyList _rpPVSPolyList;
+typedef struct _rpPVSPolyList *_rpPVSPolyListPtr;
+
+typedef struct _rpPVSPoly _rpPVSPoly;
+typedef struct _rpPVSPoly *_rpPVSPolyPtr;
+
+#if (!defined(DOXYGEN))
+typedef struct _rpPVSPlaneEq _rpPVSPlaneEq;
+struct _rpPVSPlaneEq
+{
+    RwReal              x;
+    RwReal              y;
+    RwReal              z;
+    RwReal              w;
+
+    RwReal              l;      /* recip of length of the normal */
+
+    _rpPVSPartitionId         lastresult; /* temp: stores result of last polygon wrt this plane */
+};
+
+typedef struct RwV3i RwV3i;
+struct RwV3i
+{
+    RwInt32 x;
+    RwInt32 y;
+    RwInt32 z;
+};
+
+typedef struct _rpPVSPolyRecord _rpPVSPolyRecord;
+struct _rpPVSPolyRecord
+{
+    RwBool              original; /* True if not a fragment */
+    RwReal              priority; /* Used for sorting, lower values higher priority */
+    _rpPVSPolyListPtr         parent; /* Unique pointer to original parent */
+    _rpPVSPolyPtr             geom;   /* corners of the poly */
+    _rpPVSPlaneEq             plane;  /* plane equation of the poly */
+    RwInt32             home;   /* world sector id in range 0..numsectors */
+    RpWorldSector      *homeaddr; /* world sector pointer */
+    RwBool              translucent;
+
+    RwBool              hasbeenclipper; /* Used during WA creation */
+
+    /* used by proximity culling, calculated once */
+    RwV3d               centroid;
+    RwReal              radius;
+    RwV3d               extreme; /* the vertex furthest away from the centroid */
+
+    RwReal              coneRadius; /* Used during clipping only */
+
+};
+
+struct _rpPVSPoly
+{
+    RwV3d               v;
+    _rpPVSPoly               *next;
+
+    RwInt32             pscalar; /* Used during clipping only */
+    RwReal              scalar; /* Used during clipping only */
+    _rpPVSPlaneEq             shadowPlane; /* Used during clipping only */
+};
+
+struct _rpPVSPolyList
+{
+    _rpPVSPolyRecord          data;
+    _rpPVSPolyList           *next;
+};
+
+typedef struct RpPVS RpPVS;
+
+struct RpPVS
+{
+    RwInt32             sectorID;
+    RwInt32             vismaplength;
+    RwInt32             sampleKey;
+
+    RpPVSVisMap        *vismap;
+
+    _rpPVSPolyListPtr         sectailpoly; 
+    _rpPVSPartitionId         potential;
+
+    RwUInt32            numpols;
+    RwBBox              sbox;
+    RwBBox              gbox;
+    RwReal              diagonal;
+    RwV3d               centre;
+    RwInt32             axessig[3];
+};
+
+typedef struct RpPVSCache RpPVSCache;
+struct RpPVSCache
+{
+    RwBool              processed;
+    RwBool              formatted;
+    RwInt32             NumWorldSectors;
+
+    RwInt32             ptotal;
+    RwInt32             paccept;
+
+    RwBool              hooked;
+
+    RwUInt32            nextID;
+
+    RwInt32             viscount;
+
+    RpPVSProgressCallBack progressCallBack;
+
+    _rpPVSPolyListPtr         polygons;
+
+    RpWorldSectorCallBackRender     renderCallBack;
+};
+
+typedef struct RpPVSGlobalVars RpPVSGlobalVars;
+struct RpPVSGlobalVars
+{
+    RpWorld            *World;
+
+    RwInt32             worldOffset;
+    RwInt32             sectorOffset;
+
+    RwBool              collis;
+    RwBool              bfc;
+
+
+    RwInt32             progress_count;
+    RwReal              diagonal;
+
+    RwReal              gran;
+
+    RwInt32             InSector;
+    RwV3d               ViewPos;
+    RpPVS             *CurrPVS;
+};
+#endif /* (!defined(DOXYGEN)) */
+
+
+/****************************************************************************
+ Function prototypes
+ */
+
+#ifdef    __cplusplus
+extern              "C"
+{
+#endif                          /* __cplusplus */
+
+extern RpPVSGlobalVars    rpPVSGlobals;
+
+extern RpWorld *
+RpPVSSetProgressCallBack(RpWorld * wpWorld,
+                         RpPVSProgressCallBack
+                         callback);
+
+extern RpWorldSector *
+RpPVSSetViewPosition(RpWorld * wpWorld,
+                     RwV3d * pos);
+
+extern RpWorldSector *
+RpPVSSetViewSector(RpWorld * wpWorld, RpWorldSector * spSect);
+
+extern RpWorldSector *
+RpPVSSetWorldSectorPairedVisibility(RpWorldSector * spSectA,
+                                    RpWorldSector * spSectB,
+                                    RwBool visible,
+                                    RwBool mutual);
+
+extern RpWorld *
+RpPVSDestroy(RpWorld * wpWorld);
+
+extern RwBool
+RpPVSWorldSectorVisible(RpWorldSector * spSect);
+
+extern RwBool
+RpPVSPluginAttach(void);
+
+extern RwBool
+RpPVSQuery(RpWorld * wpWorld);
+
+extern RwBool
+RpPVSAtomicVisible(RpAtomic * atom);
+
+extern RpWorld *
+RpPVSStatisticsGet(RpWorld * wpWorld,
+                   RwInt32 * ptotal,
+                   RwInt32 * paccept);
+
+extern RpPVSProgressCallBack
+RpPVSGetProgressCallBack(RpWorld *
+                         wpWorld);
+
+extern RpWorld *
+RpPVSConstruct(RpWorld * wpWorld,
+            RpPVSCallBack callback,
+            void *pData);
+
+extern RpWorld*
+RpPVSConstructSector(RpWorld * wpWorld,
+            RpWorldSector * spSector,
+            RpPVSCallBack callback,
+            void *pData);
+
+
+extern RpWorldSector *
+RpPVSGeneric(RpWorldSector * spSect,
+             const RwBBox __RWUNUSED__ * box,
+             void *data);
+
+extern RwBool
+RpPVSSetCollisionDetection(RwBool collis);
+
+extern RwBool
+RpPVSSetBackFaceCulling(RwBool bfc);
+
+extern RpWorld *
+RpPVSUnhook(RpWorld * wpWorld);
+
+extern RpWorld *
+RpPVSHook(RpWorld * wpWorld);
+
+extern RpWorldSector *
+RpPVSSetWorldSectorVisibility(RpWorldSector * spSect,
+                              RwBool visible);
+
+extern RwBool
+RpPVSSamplePOV(RwV3d * pos,
+               RwBool colltest);
+
+extern RxNodeDefinition *
+RxNodeDefinitionGetPVSWorldSectorCSL(void);
+
+#ifdef    __cplusplus
+}
+#endif                          /* __cplusplus */
+
+/* These functions are added for backwards compatibility... */
+#define RpPVSCreate(_wpWorld,                               \
+            _raster, _zraster, _mindist,                    \
+            _maxdist, _maxdepth, _callback, _pData)         \
+            RpPVSConstruct(_wpWorld, _callback, _pData)
+
+#define RpPVSAddPOV(_pos) \
+    RpPVSSamplePOV(_pos, FALSE)
+
+#define RpPVSAddWorldSector(_sector) \
+    RpPVSSetWorldSectorVisibility(_sector, TRUE)
+
+#define RpPVSAddExtraPOV(_world, _raster, _zraster, _mindist, _mazdist, _matrix) \
+MACRO_START                                     \
+{                                               \
+    rpPVSGlobals.World = (_world);              \
+    RpPVSSamplePOV(&((_matrix)->pos), TRUE);    \
+}                                               \
+MACRO_STOP
+
+
+#endif /*  _RPPVS_H */