| 1 |
greg |
2.1 |
/* |
| 2 |
|
|
================================================================== |
| 3 |
rschregle |
2.3 |
Parameters for photon map generation; used by MKPMAP |
| 4 |
|
|
For inclusion in mkpmap.c |
| 5 |
greg |
2.1 |
|
| 6 |
|
|
Roland Schregle (roland.schregle@{hslu.ch, gmail.com} |
| 7 |
|
|
(c) Fraunhofer Institute for Solar Energy Systems, |
| 8 |
rschregle |
2.2 |
(c) Lucerne University of Applied Sciences and Arts, |
| 9 |
|
|
supported by the Swiss National Science Foundation (SNSF, #147053) |
| 10 |
greg |
2.1 |
================================================================== |
| 11 |
|
|
|
| 12 |
rschregle |
2.3 |
$Id: pmapparm.c,v 2.2 2015/05/08 13:20:23 rschregle Exp $ |
| 13 |
greg |
2.1 |
*/ |
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
#include "pmapparm.h" |
| 17 |
|
|
#include "pmapdata.h" |
| 18 |
|
|
#include "standard.h" |
| 19 |
|
|
#include <ctype.h> |
| 20 |
|
|
|
| 21 |
|
|
|
| 22 |
|
|
float pdfSamples = 1000, /* PDF samples per steradian */ |
| 23 |
|
|
finalGather = 0.25, /* fraction of global photons for |
| 24 |
|
|
irradiance precomputation */ |
| 25 |
|
|
preDistrib = 0.25, /* fraction of num photons for |
| 26 |
|
|
distribution prepass */ |
| 27 |
|
|
gatherTolerance = 0.5, /* Photon map lookup tolerance; |
| 28 |
|
|
lookups returning fewer than this |
| 29 |
|
|
fraction of minGather/maxGather |
| 30 |
|
|
are restarted with a larger |
| 31 |
|
|
search radius */ |
| 32 |
|
|
maxDistCoeff = 100; /* Coefficient for maximum photon |
| 33 |
|
|
search radius */ |
| 34 |
|
|
|
| 35 |
|
|
#ifdef PMAP_ROI |
| 36 |
|
|
/* Region of interest bbox: {xmin, xmax, ymin, ymax, zmin, zmax} */ |
| 37 |
|
|
float pmapROI [6] = {-FHUGE, FHUGE, -FHUGE, FHUGE, -FHUGE, FHUGE}; |
| 38 |
|
|
#endif |
| 39 |
|
|
|
| 40 |
|
|
unsigned long photonHeapSizeInc = 1000, /* Photon heap size increment */ |
| 41 |
|
|
photonMaxBounce = 5000; /* Runaway photon bounce limit */ |
| 42 |
|
|
|
| 43 |
|
|
unsigned photonRepTime = 0, /* Seconds between reports */ |
| 44 |
|
|
maxPreDistrib = 4, /* Max predistrib passes */ |
| 45 |
|
|
defaultGather = 40; /* Default num photons for lookup */ |
| 46 |
|
|
|
| 47 |
|
|
/* Per photon map params */ |
| 48 |
|
|
PhotonMapParams pmapParams [NUM_PMAP_TYPES] = { |
| 49 |
|
|
{NULL, 0, 0, 0}, {NULL, 0, 0, 0}, {NULL, 0, 0, 0}, {NULL, 0, 0, 0}, |
| 50 |
|
|
{NULL, 0, 0, 0}, {NULL, 0, 0, 0} |
| 51 |
|
|
}; |
| 52 |
|
|
|
| 53 |
|
|
|
| 54 |
|
|
int setPmapParam (PhotonMap** pm, const PhotonMapParams* parm) |
| 55 |
|
|
{ |
| 56 |
|
|
if (parm && parm -> fileName) { |
| 57 |
|
|
if (!(*pm = (PhotonMap*)malloc(sizeof(PhotonMap)))) |
| 58 |
|
|
error(INTERNAL, "failed to allocate photon map"); |
| 59 |
|
|
|
| 60 |
|
|
(*pm) -> fileName = parm -> fileName; |
| 61 |
|
|
(*pm) -> minGather = parm -> minGather; |
| 62 |
|
|
(*pm) -> maxGather = parm -> maxGather; |
| 63 |
|
|
(*pm) -> distribTarget = parm -> distribTarget; |
| 64 |
|
|
(*pm) -> heapSizeInc = photonHeapSizeInc; |
| 65 |
|
|
(*pm) -> maxDist0 = FHUGE; |
| 66 |
|
|
(*pm) -> srcContrib = NULL; |
| 67 |
|
|
|
| 68 |
|
|
return 1; |
| 69 |
|
|
} |
| 70 |
|
|
|
| 71 |
|
|
return 0; |
| 72 |
|
|
} |
| 73 |
|
|
|
| 74 |
|
|
|
| 75 |
|
|
unsigned long parseMultiplier (const char *num) |
| 76 |
|
|
{ |
| 77 |
|
|
unsigned long mult = 1; |
| 78 |
|
|
const int strEnd = strlen(num) - 1; |
| 79 |
|
|
|
| 80 |
|
|
if (strEnd <= 0) |
| 81 |
|
|
return 0; |
| 82 |
|
|
|
| 83 |
|
|
if (!isdigit(num [strEnd])) |
| 84 |
|
|
switch (toupper(num [strEnd])) { |
| 85 |
|
|
case 'G': mult *= 1000; |
| 86 |
|
|
case 'M': mult *= 1000; |
| 87 |
|
|
case 'K': mult *= 1000; |
| 88 |
|
|
break; |
| 89 |
|
|
default : error(USER, "unknown multiplier"); |
| 90 |
|
|
} |
| 91 |
|
|
|
| 92 |
|
|
return (unsigned long)(mult * atof(num)); |
| 93 |
|
|
} |
