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-
-/**
- * \defgroup rtltmap RtLtMap
- * \ingroup rttool
- *
- * Lightmap Generation Toolkit for RenderWare.
- */
-
-#ifndef RTLTMAP_H
-#define RTLTMAP_H
-
-/*===========================================================================*
- *--- Includes --------------------------------------------------------------*
- *===========================================================================*/
-
-#include "rwcore.h"
-#include "rpworld.h"
-
-#include "rpltmap.h"
-
-
-/**
- * \ingroup rtltmap
- * \typedef RtLtMapIlluminateSampleCallBack
- * \ref RtLtMapIlluminateSampleCallBack is the callback to be called, from
- * within \ref RtLtMapIlluminate, for groups of samples in the objects
- * currently being illuminated.
- *
- * For lightmapped objects, samples are grouped on a per-polygon basis and
- * for vertex-lit objects, samples are grouped on a per-object basis (see
- * \ref RtLtMapObjectFlags).
- *
- * This callback will receive an array of color values to fill in, each
- * representing one sample in the current object - this may correspond to
- * a texel in the current object's lightmap or the prelight colour of a
- * vertex, depending on whether the object is lightmapped and/or vertex-lit.
- * It will receive positions (in world-space) for each sample and the normal
- * vector (again, in world-space) of each sample (normals are interpolated
- * across polygons for non-flat-shaded materials. See \ref RtLtMapMaterialFlags).
- * For lightmap samples (not vertex-lighting samples), it will receive
- * barycentric coordinates within the current polygon. It will also receive
- * a list of RpLights affecting the current object.
- *
- * The barycentric coordinates may be used, for example, to allow a callback
- * to easily import existing lighting data (e.g from previously generated
- * lightmaps in a different format, or from an art package with lighting
- * functionality).
- *
- * NOTE: The alpha channel of the RwRGBA results array must NOT be modified.
- * These values are used internally and their modification may result in
- * unwanted visual artifacts in the resulting lighting solution.
- *
- * The default RtLtMapIlluminateSampleCallBacks supplied with RtLtMap is
- * \ref RtLtMapDefaultSampleCallBack. This callback performs point and area
- * lighting (the area lights use are those passed to \ref RtLtMapIlluminate).
- *
- * \param results A pointer to an array of \ref RwRGBA sample color values
- * \param samplePositions A pointer to an array of \ref RwV3d values specifying the
- * world-space positions of each of the samples in the results array
- * \param baryCoords A pointer to an array of \ref RwV3d values specifying the
- * barycentric coordinates (within the current polygon) of
- * each of the samples in the results array
- * \param numSamples The length of the results, samplePositions, baryCoords and normals arrays
- * \param lights An array of pointers to \ref RpLight's affecting the current object
- * \param numLights The length of the lights array
- * \param normals A pointer to an array of \ref RwV3d values specifying the
- * world-space, unit normals of each of the samples in the results array
- *
- * \return A pointer to the results array on success, NULL otherwise
- *
- * \see RtLtMapIlluminate
- * \see RtLtMapIlluminateVisCallBack
- * \see RtLtMapIlluminateProgressCallBack
- */
-typedef RwRGBA *(*RtLtMapIlluminateSampleCallBack)(RwRGBA *results,
- RwV3d *samplePositions,
- RwV3d *baryCoords,
- RwUInt32 numSamples,
- RpLight **lights,
- RwUInt32 numLights,
- RwV3d *normals);
-
-/**
- * \ingroup rtltmap
- * \typedef RtLtMapIlluminateVisCallBack
- * \ref RtLtMapIlluminateVisCallBack is the callback to be called, from
- * within \ref RtLtMapIlluminate, to determine the visibility between a
- * sample and a light.
- *
- * This callback is called for all samples in the current
- * \ref RtLtMapLightingSession and for each light source which may
- * potentially affect each of those samples (this may not be all the
- * lights in the scene, as some hierarchical culling is performed).
- * Each sample may represent a texel in the current object's lightmap
- * or the prelight color of a vertex, depending on whether the object
- * is lightmapped and/or vertex-lit (see \ref RtLtMapObjectFlags).
- *
- * The callback will receive a pointer to the world of the current
- * \ref RtLtMapLightingSession (this may be used to perform intersection
- * tests), the world-space position of the sample, the world-space
- * position of the light, a pointer to a light and a pointer to an
- * \ref RwRGBAReal result value.
- *
- * If the light pointer is NULL, this means that the current light
- * is an area light (as opposed to an \ref RpLight), of an internal
- * format. The area lights use are those passed to \ref RtLtMapIlluminate.
- *
- * The callback should return FALSE to signify that the light is wholly
- * occluded w.r.t the sample position, otherwise it should return TRUE.
- * Partial degrees of (color-frequency-dependent) occlusion may be
- * expressed by modifying the RwRGBAReal value. This defaults to bright
- * white but may be reduced to signify that the light from the light
- * source should be attenuated. This could be used to take into account
- * light-filtering objects in the scene (such as coloured glass or fog).
- *
- * The default RtLtMapIlluminateVisCallBack supplied with RtLtMap is
- * \ref RtLtMapDefaultVisCallBack. This callback performs visibility
- * tests using the line-intersection tests from \ref rtintersect. It tests
- * for occlusion by RpWorldSectors and RpAtomics and it respects the
- * relevant \ref RtLtMapObjectFlags and \ref RtLtMapMaterialFlags but it
- * does not filter light; visibility is determined to be either one or zero.
- *
- * \param world The world of the current RtLtMapLightingSession
- * \param result An RwRGBAReal value to attentuate this light's
- * contribution to the current sample
- * \param samplePos The world-space positiuon of the sample
- * \param lightPos The world-space positiuon of the light
- * \param light A pointer to the light (NULL if it is an are light)
- *
- * \return TRUE if the light is visible from the sample, FALSE if it is occluded
- *
- * \see RtLtMapIlluminate
- * \see RtLtMapIlluminateSampleCallBack
- * \see RtLtMapIlluminateProgressCallBack
- */
-typedef RwBool (*RtLtMapIlluminateVisCallBack)(RpWorld *world,
- RwRGBAReal *result,
- RwV3d *samplePos,
- RwV3d *lightPos,
- RpLight *light);
-
-/**
- * \ingroup rtltmap
- * \typedef RtLtMapIlluminateProgressCallBack
- * \ref RtLtMapIlluminateProgressCallBack is the callback to be called, from
- * within \ref RtLtMapIlluminate, to allow a user to track lighting progress.
- *
- * The progress callback will be called at several stages during lighting,
- * with a different 'message' parameter value used at each stage (see
- * \ref RtLtMapProgressMessage). It will be called at the very start of
- * lighting (for a given \ref RtLtMapLightingSession), before any samples
- * are lit. It will also be called at the very end of lighting, after all
- * samples have been lit. It will be called before and after each lighting
- * 'slice' (see \ref RtLtMapIlluminate) and also after each group of
- * samples have been lit.
- *
- * For lightmapped objects, samples are grouped on a per-polygon basis and
- * for vertex-lit objects, samples are grouped on a per-object basis (see
- * \ref RtLtMapObjectFlags).
- *
- * The progress callback will receive a RwReal value specifying the percentage
- * of samples already lit in the current \ref RtLtMapLightingSession (see
- * \ref RtLtMapLightingSessionGetNumSamples).
- *
- * By returning FALSE, the progress callback may cause early termination of
- * the current lighting 'slice' (this may be used, for example, to keep
- * the time spent lighting each slice fairly constant).
- *
- * There is no default progress callback supplied with RtLtMap.
- *
- * \param message A \ref RtLtMapProgressMessage identifying the stage
- * of the current call to the progress callback
- * \param value The percentage of samples already lit in the
- * current \ref RtLtMapLightingSession
- *
- * \return FALSE to immediately terminate lighting, otherwise TRUE
- *
- * \see RtLtMapIlluminate
- * \see RtLtMapIlluminateSampleCallBack
- * \see RtLtMapIlluminateVisCallBack
- */
-typedef RwBool (*RtLtMapIlluminateProgressCallBack)(RwInt32 message,
- RwReal value);
-
-
-/**
- * \ingroup rtltmap
- * \ref RtLtMapProgressMessage is an enumerated type identifying the different
- * stages at which the \ref RtLtMapIlluminateProgressCallBack may be called
- * from within \ref RtLtMapIlluminate.
- *
- * \see RtLtMapIlluminateProgressCallBack
- * \see RtLtMapIlluminate
- */
-enum RtLtMapProgressMessage
-{
- rtLTMAPPROGRESSNAMESSAGE = 0,
-
- rtLTMAPPROGRESSSTART = 1, /**< This is issued at the beginning of
- * an incremental lighting session */
- rtLTMAPPROGRESSSTARTSLICE = 2, /**< This is issued at the beginning of every
- * slice in an incremental lighting session */
- rtLTMAPPROGRESSUPDATE = 3, /**< This is issued after the lighting of each
- * lightmapped triangle or vertex-lit object */
- rtLTMAPPROGRESSENDSLICE = 4, /**< This is issued at the end of every slice
- * in an incremental lighting session */
- rtLTMAPPROGRESSEND = 5, /**< This is issued at the end of an
- * incremental lighting session */
-
- rtLTMAPPROGRESSFORCEENUMSIZEINT = 0x7FFFFFFF
-};
-typedef enum RtLtMapProgressMessage RtLtMapProgressMessage;
-
-typedef struct RtLtMapLightingSession RtLtMapLightingSession;
-/**
- * \ingroup rtltmap
- * \typedef RtLtMapLightingSession
- * The \ref RtLtMapLightingSession structure holds information to be passed to
- * \ref RtLtMapIlluminate. It is used to parameterize the lighting process.
- *
- * The \ref RtLtMapLightingSession structure encapsulates a set of objects and
- * keeps track of the proportion of samples, within that set, that have already
- * been lit by calls to \ref RtLtMapIlluminate. Each call performs lighting for
- * one 'slice' of the whole 'session'. If the camera member is non-NULL, it is
- * important that the camera is not moved between lighting slices.
- *
- * The \ref RtLtMapLightingSession is also passed to
- * \ref RtLtMapLightMapsCreate, \ref RtLtMapLightMapsClear,
- * \ref RtLtMapLightMapsDestroy and \ref RtLtMapAreaLightGroupCreate,
- * though not all of the session structure's member will be used in
- * each of these cases.
- *
- * \see RtLtMapIlluminate
- * \see RtLtMapLightMapsCreate
- * \see RtLtMapLightMapsClear
- * \see RtLtMapLightMapsDestroy
- * \see RtLtMapAreaLightGroupCreate
- */
-struct RtLtMapLightingSession
-{
- RpWorld *world; /**< This world is that in which collisions are performed
- * during illumination (for the purposes of lighting
- * visibility determination) */
- RwCamera *camera; /**< An optional pointer to a camera. The camera's frustum
- * may be used to cull objects and/or triangles from the
- * set of those to be processed. */
- RpWorldSector **sectorList; /**< An optional array of \ref RpWorldSector pointers,
- * specifying which sectors in the world to light. If
- * this is NULL, then all sectors in the world (or those
- * inside the optional camera's frustum) will be lit. */
- RwInt32 numSectors; /**< The length of the sectorList array. If this is set to
- * '-1' then none of the sectors in the world will be lit. */
- RpAtomic **atomicList; /**< An optional array of \ref RpAtomic pointers,
- * specifying which atomics to light. If this is NULL
- * then all atomics in the world (or those inside the
- * optional camera's frustum) will be lit. */
- RwInt32 numAtomics; /**< The length of the atomicList array. If this is set to
- * '-1' then none of the atomics in the world will be lit. */
- RwUInt32 startSample; /**< Lighting for the current 'slice' should begin with this
- * sample. It is the user's responsibility to increment this
- * value after each slice. Note that partial lighting is
- * quantized to be per-polygon (for lightmapped objects).
- * startSample will always be rounded down, not up. */
- RwUInt32 numSamples; /**< This specifies how many lightmap samples should be lit.
- * If it is left zero then all samples in the current set
- * of objects will be lit. Note that partial lighting is
- * quantized to be per-polygon (for lightmapped objects).
- * numSamples will always be rounded up, not down. */
- RwUInt32 totalSamples;/**< This specifies how many lightmap samples will be lit in
- * total for the world specified (this is filled in by
- * \ref RtLtMapIlluminate, not the calling function). */
- RtLtMapIlluminateSampleCallBack sampleCallBack; /**< A \ref RtLtMapIlluminateSampleCallBack
- * to use during lighting. If this is left
- * NULL, the default callback will be used. */
- RtLtMapIlluminateVisCallBack visCallBack; /**< A \ref RtLtMapIlluminateVisCallBack
- * to use during lighting. If this is left
- * NULL, the default callback will be used. */
- RtLtMapIlluminateProgressCallBack progressCallBack; /**< A \ref RtLtMapIlluminateProgressCallBack
- * to use during lighting. If this is left
- * NULL, no progress callback will be used. */
-};
-
-/**
- * \ingroup rtltmap
- * \ref RtLtMapMaterialFlags is an enumerated type specifying the different
- * lightmap-related flags which may be applied to materials. These values
- * will be taken into consideration within \ref RtLtMapIlluminate.
- *
- * \see RtLtMapMaterialGetFlags
- * \see RtLtMapMaterialSetFlags
- * \see RtLtMapMaterialGetAreaLightColor
- * \see RtLtMapMaterialSetAreaLightColor
- * \see RtLtMapMaterialGetLightMapDensityModifier
- * \see RtLtMapMaterialSetLightMapDensityModifier
- * \see RtLtMapMaterialGetAreaLightDensityModifier
- * \see RtLtMapMaterialSetAreaLightDensityModifier
- * \see RtLtMapMaterialSetAreaLightRadiusModifier
- * \see RtLtMapMaterialGetAreaLightRadiusModifier
- * \see RtLtMapIlluminate
- * \see RtLtMapAreaLightGroupCreate
- * \see RtLtMapIlluminateVisCallBack
- */
-enum RtLtMapMaterialFlags
-{
- rtLTMAPMATERIALNAFLAG = 0,
-
- rtLTMAPMATERIALLIGHTMAP = 1, /**< This material should be lightmapped
- * [for non-lightmapped materials within lightmapped objects,
- * texel values will be set to (0, 0, 0) (or (255, 255, 255) if
- * the rtLTMAPMATERIALAREALIGHT flag is present, so that light-
- * emitting textures appear as bright as the light which they are
- * emittering) and the mesh may be 'shrunk' in UV-space so as not
- * to waste lightmap texels] */
- rtLTMAPMATERIALAREALIGHT = 2, /**< This material is an area light emitter
- * (see \ref RtLtMapAreaLightGroupCreate) */
- rtLTMAPMATERIALNOSHADOW = 4, /**< This material does not block light */
- rtLTMAPMATERIALSKY = 8, /**< This material blocks everything but directional
- * lights, to allow sky polygons to occlude geometry
- * and yet emit directional light (sky or sun light,
- * being as if cast from an infinite distance) */
- rtLTMAPMATERIALFLATSHADE = 16, /**< This material will be lit as if flat-shaded
- * (polygon normals will be used during illumination) */
-
- rtLTMAPMATERIALFLAGFORCEENUMSIZEINT = 0x7FFFFFFF
-};
-typedef enum RtLtMapMaterialFlags RtLtMapMaterialFlags;
-
-/**
- * \ingroup rtltmap
- * \ref RtLtMapObjectFlags is an enumerated type specifying the different
- * lightmap-related flags which may be applied to world sectors and
- * atomics. These values will be taken into consideration within
- * \ref RtLtMapLightMapsCreate and \ref RtLtMapIlluminate.
- *
- * \see RtLtMapAtomicGetFlags
- * \see RtLtMapAtomicSetFlags
- * \see RtLtMapWorldSectorGetFlags
- * \see RtLtMapWorldSectorSetFlags
- * \see RtLtMapLightMapsCreate
- * \see RtLtMapIlluminate
- * \see RtLtMapIlluminateVisCallBack
- */
-enum RtLtMapObjectFlags
-{
- rtLTMAPOBJECTNAFLAG = 0,
-
- rtLTMAPOBJECTLIGHTMAP = 1, /**< This object is to be lightmapped */
- rtLTMAPOBJECTVERTEXLIGHT = 2, /**< This object's vertex prelight colours should
- * be lit within \ref RtLtMapIlluminate. */
- rtLTMAPOBJECTNOSHADOW = 4, /**< This object does not cast shadows (useful, for
- * example, for moving objects for which dynamic
- * shadows are to be rendered - such as doors) */
-
- rtLTMAPOBJECTFLAGFORCEENUMSIZEINT = 0x7FFFFFFF
-};
-typedef enum RtLtMapObjectFlags RtLtMapObjectFlags;
-
-/* Area-lighting stuff:*
- ***********************/
-
-/**
- * \ingroup rtltmap
- * \typedef RtLtMapAreaLightGroup
- * \ref RtLtMapAreaLightGroup is a structure which acts as a container
- * for area lights created by a call to \ref RtLtMapAreaLightGroupCreate.
- * The containers may be chained and passed to \ref RtLtMapIlluminate.
- * Each container has an optional pointer to a RwFrame which is used to
- * transform the contained area lights relative to the world of the current
- * \ref RtLtMapLightingSession and relative to each other (such that, for
- * example, lights from multiple worlds, which are connected by portals,
- * or which are composed of atomics and not world sectors, may be used
- * within a single call to \ref RtLtMapIlluminate).
- *
- * \see RtLtMapAreaLightGroupCreate
- * \see RtLtMapAreaLightGroupDestroy
- * \see RtLtMapIlluminate
- * \see RtLtMapIlluminateVisCallBack
- */
-typedef struct RtLtMapAreaLightGroup RtLtMapAreaLightGroup;
-struct RtLtMapAreaLightGroup
-{
- RwSList *meshes; /**< A list of hierarchically-grouped area lights */
- RwFrame *frame; /**< An (optional) pointer to a frame (owned by something else)
- * whose LTM specifies the coordinate system of this container,
- * relative to the world of the current \ref RtLtMapLightingSession. */
- RtLtMapAreaLightGroup *next; /**< A pointer for chaining are light groups together */
-};
-
-/* Area light triangles are grouped by source mesh (this may change) */
-typedef struct LtMapAreaLightMesh LtMapAreaLightMesh;
-struct LtMapAreaLightMesh
-{
- RwUInt32 flags; /* To hold hierarchical visibility culling flags,
- * relevant to the object/triangle *currently* being lit. */
- RpMaterial *material; /* The emitter material, containing colour, etc */
- RwSphere sphere; /* Each mesh has an associated center and radius */
- RwReal ROI; /* Centred on the above sphere, the R.O.I. of the
- * samples in this mesh (a conservative estimate) */
- RwSList *triangles; /* A list of the area light triangles in this mesh */
-};
-
-/* Area light samples are grouped by source triangle */
-typedef struct LtMapAreaLight LtMapAreaLight;
-struct LtMapAreaLight
-{
- RwUInt16 flags; /* To hold hierarchical visibility culling flags,
- * relevant to the object/triangle *currently* being lit. */
- RwUInt16 numSamples; /* Number of area light samples in this triangle */
- RwReal areaPerSample; /* (triangleArea / numSamples) for this triangle */
- RwPlane plane; /* This 'area light' is a triangle, this is its plane. */
- RwSphere sphere; /* This bounds the triangle's points in world-space (it's
- * not worth storing 3 points, coarse culling is fine) */
- RwV3d *lights; /* Array of area light sample positions (in world-space) */
-};
-
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-
-
-/* Lightmap creation functionality: */
-extern RtLtMapLightingSession *
-RtLtMapLightMapsCreate(RtLtMapLightingSession *session,
- RwReal density, RwRGBA *color);
-
-extern void
-RtLtMapLightMapsDestroy(RtLtMapLightingSession *session);
-extern RpAtomic *
-RtLtMapAtomicLightMapDestroy(RpAtomic *atomic);
-extern RpWorldSector *
-RtLtMapWorldSectorLightMapDestroy(RpWorldSector *sector);
-
-extern RwReal
-RtLtMapGetVertexWeldThreshold(void);
-extern RwBool
-RtLtMapSetVertexWeldThreshold(RwReal threshold);
-
-extern RwUInt32
-RtLtMapLightMapGetDefaultSize(void);
-extern RwBool
-RtLtMapLightMapSetDefaultSize(RwUInt32 size);
-
-extern RwUInt32
-RtLtMapAtomicGetLightMapSize(RpAtomic *atomic);
-extern RpAtomic *
-RtLtMapAtomicSetLightMapSize(RpAtomic *atomic, RwUInt32 size);
-extern RwUInt32
-RtLtMapWorldSectorGetLightMapSize(RpWorldSector *sector);
-extern RpWorldSector *
-RtLtMapWorldSectorSetLightMapSize(RpWorldSector *sector, RwUInt32 size);
-
-extern RwUInt32
-RtLtMapAtomicGetFlags(RpAtomic *atomic);
-extern RpAtomic *
-RtLtMapAtomicSetFlags(RpAtomic *atomic, RwUInt32 flags);
-extern RwUInt32
-RtLtMapWorldSectorGetFlags(RpWorldSector *sector);
-extern RpWorldSector *
-RtLtMapWorldSectorSetFlags(RpWorldSector *sector, RwUInt32 flags);
-
-
-/* Lightmap illumination functionality: */
-extern RwUInt32
-RtLtMapIlluminate(RtLtMapLightingSession *session,
- RtLtMapAreaLightGroup *lights);
-
-extern RwReal
-RtLtMapGetSliverAreaThreshold(void);
-extern RwBool
-RtLtMapSetSliverAreaThreshold(RwReal threshold);
-
-extern RwRGBA *
-RtLtMapDefaultSampleCallBack(RwRGBA *results,
- RwV3d *samplePositions,
- RwV3d * __RWUNUSED__ baryCoords,
- RwUInt32 numSamples,
- RpLight **lights,
- RwUInt32 numLights,
- RwV3d *normals);
-
-extern RwBool
-RtLtMapDefaultVisCallBack(RpWorld *world,
- RwRGBAReal __RWUNUSED__ *result,
- RwV3d *samplePos,
- RwV3d *lightPos,
- RpLight __RWUNUSED__ *light);
-
-extern RtLtMapLightingSession *
-RtLtMapLightingSessionInitialize(RtLtMapLightingSession *session,
- RpWorld *world);
-
-extern RwInt32
-RtLtMapLightingSessionGetNumSamples(RtLtMapLightingSession *session);
-extern RwInt32
-RtLtMapWorldSectorGetNumSamples(RpWorldSector *sector);
-extern RwInt32
-RtLtMapAtomicGetNumSamples(RpAtomic *atomic);
-
-extern RtLtMapLightingSession *
-RtLtMapImagesPurge(RtLtMapLightingSession *session);
-extern RpAtomic *
-RtLtMapAtomicImagePurge(RpAtomic *atomic);
-extern RpWorldSector *
-RtLtMapWorldSectorImagePurge(RpWorldSector *sector);
-
-extern RtLtMapLightingSession *
-RtLtMapLightMapsClear(RtLtMapLightingSession *session, RwRGBA *color);
-extern RpAtomic *
-RtLtMapAtomicLightMapClear(RpAtomic *atomic, RwRGBA *color);
-extern RpWorldSector *
-RtLtMapWorldSectorLightMapClear(RpWorldSector *sector, RwRGBA *color);
-
-
-/* Material/area-lighting functionality: */
-extern RtLtMapAreaLightGroup *
-RtLtMapAreaLightGroupCreate(RtLtMapLightingSession *session, RwReal density);
-extern RwBool
-RtLtMapAreaLightGroupDestroy(RtLtMapAreaLightGroup *lights);
-
-extern RwUInt32
-RtLtMapMaterialGetFlags(RpMaterial *material);
-extern RpMaterial *
-RtLtMapMaterialSetFlags(RpMaterial *material, RwUInt32 flags);
-
-extern RwReal
-RtLtMapMaterialGetLightMapDensityModifier(RpMaterial *material);
-extern RpMaterial *
-RtLtMapMaterialSetLightMapDensityModifier(RpMaterial *material, RwReal modifier);
-
-extern RwRGBA
-RtLtMapMaterialGetAreaLightColor(RpMaterial *material);
-extern RpMaterial *
-RtLtMapMaterialSetAreaLightColor(RpMaterial *material, RwRGBA color);
-
-extern RwReal
-RtLtMapMaterialGetAreaLightDensityModifier(RpMaterial *material);
-extern RpMaterial *
-RtLtMapMaterialSetAreaLightDensityModifier(RpMaterial *material, RwReal modifier);
-
-extern RwReal
-RtLtMapMaterialGetAreaLightRadiusModifier(RpMaterial *material);
-extern RpMaterial *
-RtLtMapMaterialSetAreaLightRadiusModifier(RpMaterial *material, RwReal modifier);
-
-extern RwUInt32
-RtLtMapGetMaxAreaLightSamplesPerMesh(void);
-extern RwBool
-RtLtMapSetMaxAreaLightSamplesPerMesh(RwUInt32 maxSamples);
-extern RwReal
-RtLtMapGetAreaLightDensityModifier(void);
-extern RwBool
-RtLtMapSetAreaLightDensityModifier(RwReal modifier);
-extern RwReal
-RtLtMapGetAreaLightRadiusModifier(void);
-extern RwBool
-RtLtMapSetAreaLightRadiusModifier(RwReal modifier);
-extern RwReal
-RtLtMapGetAreaLightErrorCutoff(void);
-extern RwBool
-RtLtMapSetAreaLightErrorCutoff(RwReal tolerance);
-
-
-
-/* Texture-saving functionality: */
-extern RwTexDictionary *
-RtLtMapTexDictionaryCreate(RtLtMapLightingSession *session);
-
-extern const RwChar *
-RtLtMapGetDefaultPrefixString(void);
-extern RwBool
-RtLtMapSetDefaultPrefixString(RwChar *string);
-
-extern RwUInt32
-RtLtMapGetLightMapCounter(void);
-extern RwBool
-RtLtMapSetLightMapCounter(RwUInt32 value);
-
-
-#if (defined(SKY2_DRVMODEL_H) || defined(NULLSKY_DRVMODEL_H))
-
-/* PS2-specific functionality: */
-extern RwTexture *RtLtMapSkyLightMapMakeDarkMap(RwTexture *lightMap);
-
-extern RwTexture *RtLtMapSkyBaseTextureProcess(RwTexture *texture);
-extern RpAtomic *RtLtMapSkyAtomicBaseTexturesProcess(RpAtomic *atomic);
-extern RpWorldSector *
-RtLtMapSkyWorldSectorBaseTexturesProcess(RpWorldSector *sector);
-extern RtLtMapLightingSession *
-RtLtMapSkyBaseTexturesProcess(RtLtMapLightingSession *session);
-
-#endif /* (defined(SKY2_DRVMODEL_H) || defined(NULLSKY_DRVMODEL_H)) */
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* RTLTMAP_H */
-
-