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RadiancePmap/pmapparm.h
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pmapparm.h
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/* RCSid $Id: pmapparm.h,v 2.10 2021/04/14 11:26:25 rschregle Exp $ */
/*
======================================================================
Parameters for photon map generation and rendering; used by mkpmap
and rpict/rvu/rtrace.
Roland Schregle (roland.schregle@{hslu.ch, gmail.com}
(c) Fraunhofer Institute for Solar Energy Systems,
supported by the German Research Foundation
(DFG LU-204/10-2, "Fassadenintegrierte Regelsysteme" (FARESYS))
(c) Lucerne University of Applied Sciences and Arts,
supported by the Swiss National Science Foundation
(SNSF #147053, "Daylight Redirecting Components",
SNSF #179067, "Light Fields for Spatio-Temporal Glare Assessment")
(c) Tokyo University of Science,
supported by the JSPS Grants-in-Aid for Scientific Research
(KAKENHI JP19KK0115, "Three-Dimensional Light Flow")
======================================================================
$Id: pmapparm.h,v 2.10 2021/04/14 11:26:25 rschregle Exp $
*/
#ifndef PMAPPARAMS_H
#define PMAPPARAMS_H
#include "pmaptype.h"
/* Struct for passing params per photon map from rpict/rtrace/rvu */
typedef struct {
char *fileName; /* Photon map file */
unsigned minGather, maxGather; /* Num photons to gather */
unsigned long distribTarget; /* Num photons to store */
#ifdef PMAP_PHOTONFLOW
float time; /* Time of flight for transient
lightflow photons */
#endif
} PhotonMapParams;
/* Region of interest */
typedef struct {
/* siz [1], siz [2] <= 0 --> sphere, else rectangle */
float pos [3], siz [3];
} PhotonMapROI;
#define PMAP_ROI_ISSPHERE(roi) ((roi)->siz[1] <= 0 && (roi)->siz[2] <= 0)
#define PMAP_ROI_SETSPHERE(roi) ((roi)->siz[1] = (roi)->siz[2] = -1)
extern PhotonMapParams pmapParams [NUM_PMAP_TYPES];
/* Macros for type specific photon map parameters */
#define globalPmapParams (pmapParams [PMAP_TYPE_GLOBAL])
#define preCompPmapParams (pmapParams [PMAP_TYPE_PRECOMP])
#define causticPmapParams (pmapParams [PMAP_TYPE_CAUSTIC])
#define volumePmapParams (pmapParams [PMAP_TYPE_VOLUME])
#define directPmapParams (pmapParams [PMAP_TYPE_DIRECT])
#define contribPmapParams (pmapParams [PMAP_TYPE_CONTRIB])
#ifdef PMAP_PHOTONFLOW
#define lightFlowParams (pmapParams [PMAP_TYPE_LIGHTFLOW])
#define transLightFlowParams (pmapParams [PMAP_TYPE_TRANSLIGHTFLOW])
#endif
extern float pdfSamples, preDistrib, finalGather,
gatherTolerance, maxDistFix, pmapMaxDist,
photonMaxPathDist, compressRatio;
extern unsigned long photonHeapSizeInc, photonMaxBounce;
extern unsigned photonRepTime, maxPreDistrib, defaultGather,
verbose;
extern unsigned pmapNumROI;
extern PhotonMapROI *pmapROI;
#ifdef PMAP_OOC
extern float pmapCachePageSize;
extern unsigned long pmapCacheSize;
#endif
#ifdef PMAP_PHOTONFLOW
extern int sphericalIrrad;
extern float photonVelocity;
#endif
struct PhotonMap;
int setPmapParam (struct PhotonMap **pm, const PhotonMapParams *parm);
/* Allocate photon map and set its parameters from parm */
unsigned long parseMultiplier (const char *num);
/* Evaluate numeric parameter string with optional multiplier suffix
(G = 10^9, M = 10^6, K = 10^3). Returns 0 if parsing fails. */
#endif
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