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RadiancePmap/pmapcontrib.h
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pmapcontrib.h
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/* RCSid $Id: pmapcontrib.h,v 2.5 2016/05/17 17:39:47 rschregle Exp $ */
/*
=========================================================================
Photon map routines for precomputed light source contributions; these
routines interface to mkpmap and rcontrib.
Roland Schregle (roland.schregle@{hslu.ch, gmail.com})
(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")
=========================================================================
$Id: pmapcontrib.h,v 2.5 2016/05/17 17:39:47 rschregle Exp $
*/
#ifndef _PMAPCONTRIB_H
#define _PMAPCONTRIB_H
#include "pmapdata.h"
#ifndef MAXPROCESS
#include "rcontrib.h"
#endif
#ifndef MAXMODLIST
/* Max number of contributing sources */
#define MAXMODLIST 1024
#endif
/* Filename templates for precomputed contrib photon map:
Wavelet compressed contributions (per modifier) */
#define PMAP_CONTRIB_WAVELETSUFFIX "%s-%s.wvt"
typedef struct {
/* Contribution tagged by associated bin;
expanded representation of below */
DCOLOR contrib;
unsigned bin;
} BinnedContrib;
MODCONT *addContribModifier(
LUTAB *contribTab, unsigned *numContribs, char *mod,
char *binParm, char *binVal, int binCnt
);
/* Add light source modifier mod to contribution lookup table
contribsTab, and update numContribs. Return initialised
contribution data for this modifier. */
void addContribModfile(
LUTAB *contribTab, unsigned *numContribs, char *modFile,
char *binParm, char *binVal, int binCnt
);
/* Add light source modifiers from file modFile to contribution lookup
* table contribTab, and update numContribs. */
void initPmapContrib (LUTAB *contribTab);
/* Set up photon map contributions (interface to rcmain.c) */
void distribPhotonContrib (
PhotonMap *pmap, LUTAB *contribTab, unsigned numContribs,
unsigned numProc
);
/* Emit photons with binned light source contributions, precompute their
contributions and build photon map */
void preCompPhotonContrib (PhotonMap *pmap, RAY *ray, COLOR totalContrib);
/* Fetch and decode precomputed light source contributions from single
closest precomputed contribution photon at ray -> rop, and accumulate
them in pmap -> contribTab. Also returns total precomputed contribs. */
#endif
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