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greg |
2.1 |
/*
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==================================================================
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rschregle |
2.3 |
Parameters for photon map generation; used by MKPMAP
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For inclusion in mkpmap.c
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greg |
2.1 |
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Roland Schregle (roland.schregle@{hslu.ch, gmail.com}
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(c) Fraunhofer Institute for Solar Energy Systems,
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rschregle |
2.2 |
(c) Lucerne University of Applied Sciences and Arts,
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supported by the Swiss National Science Foundation (SNSF, #147053)
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greg |
2.1 |
==================================================================
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rschregle |
2.3 |
$Id: pmapparm.c,v 2.2 2015/05/08 13:20:23 rschregle Exp $
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greg |
2.1 |
*/
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#include "pmapparm.h"
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#include "pmapdata.h"
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#include "standard.h"
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#include <ctype.h>
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float pdfSamples = 1000, /* PDF samples per steradian */
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finalGather = 0.25, /* fraction of global photons for
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irradiance precomputation */
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preDistrib = 0.25, /* fraction of num photons for
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distribution prepass */
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gatherTolerance = 0.5, /* Photon map lookup tolerance;
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lookups returning fewer than this
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fraction of minGather/maxGather
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are restarted with a larger
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search radius */
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maxDistCoeff = 100; /* Coefficient for maximum photon
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search radius */
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#ifdef PMAP_ROI
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/* Region of interest bbox: {xmin, xmax, ymin, ymax, zmin, zmax} */
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float pmapROI [6] = {-FHUGE, FHUGE, -FHUGE, FHUGE, -FHUGE, FHUGE};
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#endif
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unsigned long photonHeapSizeInc = 1000, /* Photon heap size increment */
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photonMaxBounce = 5000; /* Runaway photon bounce limit */
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unsigned photonRepTime = 0, /* Seconds between reports */
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maxPreDistrib = 4, /* Max predistrib passes */
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defaultGather = 40; /* Default num photons for lookup */
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/* Per photon map params */
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PhotonMapParams pmapParams [NUM_PMAP_TYPES] = {
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{NULL, 0, 0, 0}, {NULL, 0, 0, 0}, {NULL, 0, 0, 0}, {NULL, 0, 0, 0},
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{NULL, 0, 0, 0}, {NULL, 0, 0, 0}
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};
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int setPmapParam (PhotonMap** pm, const PhotonMapParams* parm)
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{
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if (parm && parm -> fileName) {
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if (!(*pm = (PhotonMap*)malloc(sizeof(PhotonMap))))
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error(INTERNAL, "failed to allocate photon map");
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(*pm) -> fileName = parm -> fileName;
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(*pm) -> minGather = parm -> minGather;
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(*pm) -> maxGather = parm -> maxGather;
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(*pm) -> distribTarget = parm -> distribTarget;
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(*pm) -> heapSizeInc = photonHeapSizeInc;
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(*pm) -> maxDist0 = FHUGE;
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(*pm) -> srcContrib = NULL;
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return 1;
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}
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return 0;
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}
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unsigned long parseMultiplier (const char *num)
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{
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unsigned long mult = 1;
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const int strEnd = strlen(num) - 1;
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if (strEnd <= 0)
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return 0;
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if (!isdigit(num [strEnd]))
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switch (toupper(num [strEnd])) {
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case 'G': mult *= 1000;
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case 'M': mult *= 1000;
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case 'K': mult *= 1000;
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break;
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default : error(USER, "unknown multiplier");
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}
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return (unsigned long)(mult * atof(num));
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}
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