1 |
greg |
2.1 |
/* |
2 |
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================================================================== |
3 |
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Photon map generator |
4 |
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5 |
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Roland Schregle (roland.schregle@{hslu.ch, gmail.com}) |
6 |
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(c) Fraunhofer Institute for Solar Energy Systems, |
7 |
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Lucerne University of Applied Sciences & Arts |
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================================================================== |
9 |
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10 |
greg |
2.2 |
$Id: mkpmap.c,v 2.1 2015/02/24 19:39:26 greg Exp $ |
11 |
greg |
2.1 |
*/ |
12 |
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13 |
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14 |
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15 |
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#include "pmap.h" |
16 |
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#include "pmapmat.h" |
17 |
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#include "pmapcontrib.h" |
18 |
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#include "pmaprand.h" |
19 |
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#include "paths.h" |
20 |
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#include "ambient.h" |
21 |
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#include "resolu.h" |
22 |
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#include "source.h" |
23 |
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#include <string.h> |
24 |
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#include <sys/stat.h> |
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26 |
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27 |
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28 |
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extern char VersionID []; |
29 |
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30 |
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31 |
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32 |
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char* progname; /* argv[0] */ |
33 |
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int dimlist [MAXDIM]; /* sampling dimensions */ |
34 |
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int ndims = 0; /* number of sampling dimenshunns */ |
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char* octname = NULL; /* octree name */ |
36 |
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CUBE thescene; /* scene top-level octree */ |
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OBJECT nsceneobjs; /* number of objects in scene */ |
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double srcsizerat = 0.01; /* source partition size ratio */ |
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int backvis = 1; /* back face visibility */ |
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int clobber = 0; /* overwrite output */ |
41 |
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
42 |
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COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
43 |
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double seccg = 0; /* global scattering eccentricity */ |
44 |
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int ambincl = -1; /* photon port flag */ |
45 |
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char *amblist [AMBLLEN + 1]; /* photon port list */ |
46 |
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char *diagFile = NULL; /* diagnostics output file */ |
47 |
greg |
2.2 |
int rand_samp = 1; /* uncorrelated random sampling */ |
48 |
greg |
2.1 |
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49 |
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50 |
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/* Dummies for linkage */ |
51 |
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52 |
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COLOR ambval = BLKCOLOR; |
53 |
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double shadthresh = .05, ambacc = 0.2, shadcert = .5, minweight = 5e-3, |
54 |
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ssampdist = 0, dstrsrc = 0.0, specthresh = 0.15, specjitter = 1.0, |
55 |
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avgrefl = 0.5; |
56 |
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int ambvwt = 0, ambssamp = 0, ambres = 32, ambounce = 0, directrelay = 1, |
57 |
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directvis = 1, samplendx, do_irrad = 0, ambdiv = 128, vspretest = 512, |
58 |
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maxdepth = 6, contrib = 0; |
59 |
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char *shm_boundary = NULL, *ambfile = NULL, *RCCONTEXT = NULL; |
60 |
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void (*trace)() = NULL, (*addobjnotify [])() = {ambnotify, NULL}; |
61 |
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62 |
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63 |
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64 |
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void printdefaults() |
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/* print default values to stdout */ |
66 |
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{ |
67 |
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puts("-apg file nPhotons\t\t# global photon map"); |
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puts("-apc file nPhotons\t\t# caustic photon map"); |
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puts("-apd file nPhotons\t\t# direct photon map"); |
70 |
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puts("-app file nPhotons bwidth\t# precomputed global photon map"); |
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#if 0 |
72 |
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/* Hide this option as most likely useless and confusing to user */ |
73 |
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puts("-appb file nPhotons minBw maxBw\t# precomp bias comp global pmap"); |
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#endif |
75 |
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puts("-apv file nPhotons\t\t# volume photon map"); |
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puts("-apC file nPhotons\t\t# contribution photon map"); |
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78 |
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printf("-apD %f\t\t\t# predistribution factor\n", preDistrib); |
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printf("-apM %d\t\t\t\t# max predistrib passes\n", maxPreDistrib); |
80 |
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printf("-apm %ld\t\t\t# max photon bounces\n", photonMaxBounce); |
81 |
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puts("-apo mod\t\t\t# photon port modifier"); |
82 |
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puts("-apO file\t\t\t# photon port file"); |
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printf("-apP %f\t\t\t# precomputation factor\n", finalGather); |
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printf("-apr %d\t\t\t\t# random seed\n", randSeed); |
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puts("-aps mod\t\t\t# antimatter sensor modifier"); |
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puts("-apS file\t\t\t# antimatter sensor file"); |
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88 |
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printf(backvis ? "-bv+\t\t\t\t# back face visibility on\n" |
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: "-bv-\t\t\t\t# back face visibility off\n"); |
90 |
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printf("-dp %.1f\t\t\t# PDF samples / sr\n", pdfSamples); |
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printf("-ds %f\t\t\t# source partition size ratio\n", srcsizerat); |
92 |
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printf("-e %s\t\t\t# diagnostics output file\n", diagFile); |
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printf(clobber ? "-fo+\t\t\t\t# force overwrite" |
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: "-fo-\t\t\t\t# do not overwrite\n"); |
95 |
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printf("-i %-9ld\t\t\t# photon heap size increment\n", |
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photonHeapSizeInc); |
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printf("-ma %.2f %.2f %.2f\t\t# scattering albedo\n", |
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colval(salbedo,RED), colval(salbedo,GRN), colval(salbedo,BLU)); |
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printf("-me %.2e %.2e %.2e\t# extinction coefficient\n", |
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colval(cextinction,RED), colval(cextinction,GRN), |
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colval(cextinction,BLU)); |
102 |
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printf("-mg %.2f\t\t\t# scattering eccentricity\n", seccg); |
103 |
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printf("-t %-9d\t\t\t# time between reports\n", photonRepTime); |
104 |
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105 |
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#ifdef PMAP_ROI |
106 |
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/* Ziss option for ze egg-spurtz only! */ |
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printf("-api \t%.0e %.0e %.0e\n\t%.0e %.0e %.0e\t# region of interest\n", |
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pmapROI [0], pmapROI [1], pmapROI [2], pmapROI [3], |
109 |
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pmapROI [4], pmapROI [5]); |
110 |
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#endif |
111 |
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} |
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113 |
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114 |
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115 |
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116 |
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int main (int argc, char* argv []) |
117 |
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{ |
118 |
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#define check(ol, al) if (argv [i][ol] || \ |
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badarg(argc - i - 1,argv + i + 1, al)) \ |
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goto badopt |
121 |
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122 |
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#define bool(olen, var) switch (argv [i][olen]) { \ |
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case '\0': var = !var; break; \ |
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case 'y': case 'Y': case 't': case 'T': \ |
125 |
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case '+': case '1': var = 1; break; \ |
126 |
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case 'n': case 'N': case 'f': case 'F': \ |
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case '-': case '0': var = 0; break; \ |
128 |
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default: goto badopt; \ |
129 |
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} |
130 |
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131 |
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int loadflags = IO_CHECK | IO_SCENE | IO_TREE | IO_BOUNDS, rval, i; |
132 |
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char **portLp = NULL, **sensLp = photonSensorList; |
133 |
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struct stat pmstat; |
134 |
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135 |
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/* Global program name */ |
136 |
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progname = fixargv0(argv [0]); |
137 |
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/* Initialize object types */ |
138 |
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initotypes(); |
139 |
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140 |
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/* Parse options */ |
141 |
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for (i = 1; i < argc; i++) { |
142 |
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/* Eggs-pand arguments */ |
143 |
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while ((rval = expandarg(&argc, &argv, i))) |
144 |
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if (rval < 0) { |
145 |
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sprintf(errmsg, "cannot eggs-pand '%s'", argv [i]); |
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error(SYSTEM, errmsg); |
147 |
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} |
148 |
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149 |
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if (argv[i] == NULL) |
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break; |
151 |
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152 |
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if (!strcmp(argv [i], "-version")) { |
153 |
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puts(VersionID); |
154 |
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quit(0); |
155 |
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} |
156 |
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157 |
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if (!strcmp(argv [i], "-defaults") || !strcmp(argv [i], "-help")) { |
158 |
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printdefaults(); |
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quit(0); |
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} |
161 |
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162 |
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/* Get octree */ |
163 |
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if (i == argc - 1) { |
164 |
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octname = argv [i]; |
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break; |
166 |
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} |
167 |
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168 |
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switch (argv [i][1]) { |
169 |
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case 'a': |
170 |
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if (!strcmp(argv [i] + 2, "pg")) { |
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/* Global photon map */ |
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check(4, "ss"); |
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globalPmapParams.fileName = argv [++i]; |
174 |
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globalPmapParams.distribTarget = |
175 |
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parseMultiplier(argv [++i]); |
176 |
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if (!globalPmapParams.distribTarget) |
177 |
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goto badopt; |
178 |
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globalPmapParams.minGather = globalPmapParams.maxGather = 0; |
179 |
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} |
180 |
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181 |
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else if (!strcmp(argv [i] + 2, "pm")) { |
182 |
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/* Max photon bounces */ |
183 |
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check(4, "i"); |
184 |
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photonMaxBounce = atol(argv [++i]); |
185 |
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if (!photonMaxBounce) |
186 |
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goto badopt; |
187 |
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} |
188 |
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189 |
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else if (!strcmp(argv [i] + 2, "pp")) { |
190 |
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/* Precomputed global photon map */ |
191 |
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check(4, "ssi"); |
192 |
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preCompPmapParams.fileName = argv [++i]; |
193 |
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preCompPmapParams.distribTarget = |
194 |
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parseMultiplier(argv [++i]); |
195 |
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if (!preCompPmapParams.distribTarget) |
196 |
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goto badopt; |
197 |
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preCompPmapParams.minGather = preCompPmapParams.maxGather = |
198 |
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atoi(argv [++i]); |
199 |
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if (!preCompPmapParams.maxGather) |
200 |
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goto badopt; |
201 |
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} |
202 |
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203 |
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#if 0 |
204 |
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else if (!strcmp(argv [i] + 2, "ppb")) { |
205 |
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/* Precomputed global photon map + bias comp. */ |
206 |
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check(5, "ssii"); |
207 |
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preCompPmapParams.fileName = argv [++i]; |
208 |
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preCompPmapParams.distribTarget = |
209 |
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parseMultiplier(argv [++i]); |
210 |
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if (!preCompPmapParams.distribTarget) |
211 |
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goto badopt; |
212 |
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preCompPmapParams.minGather = atoi(argv [++i]); |
213 |
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preCompPmapParams.maxGather = atoi(argv [++i]); |
214 |
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if (!preCompPmapParams.minGather || |
215 |
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preCompPmapParams.minGather >= |
216 |
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preCompPmapParams.maxGather) |
217 |
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goto badopt; |
218 |
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} |
219 |
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#endif |
220 |
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221 |
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else if (!strcmp(argv [i] + 2, "pc")) { |
222 |
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/* Caustic photon map */ |
223 |
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check(4, "ss"); |
224 |
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causticPmapParams.fileName = argv [++i]; |
225 |
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causticPmapParams.distribTarget = |
226 |
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parseMultiplier(argv [++i]); |
227 |
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if (!causticPmapParams.distribTarget) |
228 |
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goto badopt; |
229 |
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} |
230 |
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231 |
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else if (!strcmp(argv [i] + 2, "pv")) { |
232 |
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/* Volume photon map */ |
233 |
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check(4, "ss"); |
234 |
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volumePmapParams.fileName = argv [++i]; |
235 |
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volumePmapParams.distribTarget = |
236 |
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parseMultiplier(argv [++i]); |
237 |
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if (!volumePmapParams.distribTarget) |
238 |
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goto badopt; |
239 |
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} |
240 |
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241 |
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else if (!strcmp(argv [i] + 2, "pd")) { |
242 |
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/* Direct photon map */ |
243 |
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check(4, "ss"); |
244 |
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directPmapParams.fileName = argv [++i]; |
245 |
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directPmapParams.distribTarget = |
246 |
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parseMultiplier(argv [++i]); |
247 |
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if (!directPmapParams.distribTarget) |
248 |
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goto badopt; |
249 |
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} |
250 |
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251 |
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else if (!strcmp(argv [i] + 2, "pC")) { |
252 |
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/* Light source contribution photon map */ |
253 |
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check(4, "ss"); |
254 |
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contribPmapParams.fileName = argv [++i]; |
255 |
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contribPmapParams.distribTarget = |
256 |
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parseMultiplier(argv [++i]); |
257 |
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if (!contribPmapParams.distribTarget) |
258 |
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goto badopt; |
259 |
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} |
260 |
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261 |
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else if (!strcmp(argv [i] + 2, "pD")) { |
262 |
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/* Predistribution factor */ |
263 |
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check(4, "f"); |
264 |
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preDistrib = atof(argv [++i]); |
265 |
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if (preDistrib <= 0) |
266 |
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error(USER, "predistribution factor must be > 0"); |
267 |
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} |
268 |
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269 |
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#ifdef PMAP_ROI |
270 |
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/* Region of interest; ziss option for ze egg-spurtz only! */ |
271 |
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else if (!strcmp(argv [i] + 2, "pi")) { |
272 |
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int j; |
273 |
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check(4, "ffffff"); |
274 |
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for (j = 0; j < 6; j++) |
275 |
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pmapROI [j] = atof(argv [++i]); |
276 |
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} |
277 |
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#endif |
278 |
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279 |
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else if (!strcmp(argv [i] + 2, "pP")) { |
280 |
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/* Global photon precomputation factor */ |
281 |
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check(4, "f"); |
282 |
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finalGather = atof(argv [++i]); |
283 |
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if (finalGather <= 0 || finalGather > 1) |
284 |
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error(USER, "global photon precomputation factor " |
285 |
|
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"must be in range ]0, 1]"); |
286 |
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} |
287 |
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288 |
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else if (!strcmp(argv [i] + 2, "po") || |
289 |
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!strcmp(argv [i] + 2, "pO")) { |
290 |
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/* Photon port */ |
291 |
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check(4, "s"); |
292 |
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293 |
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if (ambincl != 1) { |
294 |
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ambincl = 1; |
295 |
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portLp = amblist; |
296 |
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} |
297 |
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298 |
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if (argv[i][3] == 'O') { |
299 |
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/* Get port modifiers file */ |
300 |
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rval = wordfile(portLp, getpath(argv [++i], |
301 |
|
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getrlibpath(), R_OK)); |
302 |
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|
if (rval < 0) { |
303 |
|
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sprintf(errmsg, "cannot open photon port file %s", |
304 |
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argv [i]); |
305 |
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error(SYSTEM, errmsg); |
306 |
|
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} |
307 |
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308 |
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portLp += rval; |
309 |
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} |
310 |
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311 |
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else { |
312 |
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/* Append modifier to port list */ |
313 |
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*portLp++ = argv [++i]; |
314 |
|
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*portLp = NULL; |
315 |
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} |
316 |
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} |
317 |
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318 |
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else if (!strcmp(argv [i] + 2, "pr")) { |
319 |
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/* Random seed */ |
320 |
|
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check(4, "i"); |
321 |
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randSeed = atoi(argv [++i]); |
322 |
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} |
323 |
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324 |
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else if (!strcmp(argv [i] + 2, "ps") || |
325 |
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!strcmp(argv [i] + 2, "pS")) { |
326 |
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/* Antimatter sensor */ |
327 |
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check(4, "s"); |
328 |
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329 |
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if (argv[i][3] == 'S') { |
330 |
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/* Get sensor modifiers from file */ |
331 |
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rval = wordfile(sensLp, getpath(argv [++i], |
332 |
|
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getrlibpath(), R_OK)); |
333 |
|
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if (rval < 0) { |
334 |
|
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sprintf(errmsg, "cannot open antimatter sensor file %s", |
335 |
|
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argv [i]); |
336 |
|
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error(SYSTEM, errmsg); |
337 |
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} |
338 |
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339 |
|
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sensLp += rval; |
340 |
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} |
341 |
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342 |
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else { |
343 |
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/* Append modifier to sensor list */ |
344 |
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*sensLp++ = argv [++i]; |
345 |
|
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*sensLp = NULL; |
346 |
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} |
347 |
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} |
348 |
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349 |
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else goto badopt; |
350 |
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break; |
351 |
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352 |
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case 'b': |
353 |
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if (argv [i][2] == 'v') { |
354 |
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/* Back face visibility */ |
355 |
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bool(3, backvis); |
356 |
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} |
357 |
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358 |
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else goto badopt; |
359 |
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break; |
360 |
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361 |
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case 'd': /* Direct */ |
362 |
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switch (argv [i][2]) { |
363 |
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case 'p': /* PDF samples */ |
364 |
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check(3, "f"); |
365 |
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pdfSamples = atof(argv [++i]); |
366 |
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break; |
367 |
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368 |
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case 's': /* Source partition size ratio */ |
369 |
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check(3, "f"); |
370 |
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srcsizerat = atof(argv [++i]); |
371 |
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break; |
372 |
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373 |
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|
default: goto badopt; |
374 |
|
|
} |
375 |
|
|
break; |
376 |
|
|
|
377 |
|
|
case 'e': /* Diagnostics file */ |
378 |
|
|
check(2, "s"); |
379 |
|
|
diagFile = argv [++i]; |
380 |
|
|
break; |
381 |
|
|
|
382 |
|
|
case 'f': |
383 |
|
|
if (argv [i][2] == 'o') { |
384 |
|
|
/* Force overwrite */ |
385 |
|
|
bool(3, clobber); |
386 |
|
|
} |
387 |
|
|
|
388 |
|
|
else goto badopt; |
389 |
|
|
break; |
390 |
|
|
|
391 |
|
|
case 'i': /* Photon heap size increment */ |
392 |
|
|
check(2, "i"); |
393 |
|
|
photonHeapSizeInc = atol(argv [++i]); |
394 |
|
|
break; |
395 |
|
|
|
396 |
|
|
case 'm': /* Medium */ |
397 |
|
|
switch (argv[i][2]) { |
398 |
|
|
case 'e': /* Eggs-tinction coefficient */ |
399 |
|
|
check(3, "fff"); |
400 |
|
|
setcolor(cextinction, atof(argv [i + 1]), |
401 |
|
|
atof(argv [i + 2]), atof(argv [i + 3])); |
402 |
|
|
i += 3; |
403 |
|
|
break; |
404 |
|
|
|
405 |
|
|
case 'a': /* Albedo */ |
406 |
|
|
check(3, "fff"); |
407 |
|
|
setcolor(salbedo, atof(argv [i + 1]), |
408 |
|
|
atof(argv [i + 2]), atof(argv [i + 3])); |
409 |
|
|
i += 3; |
410 |
|
|
break; |
411 |
|
|
|
412 |
|
|
case 'g': /* Scattering eccentricity */ |
413 |
|
|
check(3, "f"); |
414 |
|
|
seccg = atof(argv [++i]); |
415 |
|
|
break; |
416 |
|
|
|
417 |
|
|
default: goto badopt; |
418 |
|
|
} |
419 |
|
|
break; |
420 |
|
|
|
421 |
|
|
case 't': /* Timer */ |
422 |
|
|
check(2, "i"); |
423 |
|
|
photonRepTime = atoi(argv [++i]); |
424 |
|
|
break; |
425 |
|
|
|
426 |
|
|
default: goto badopt; |
427 |
|
|
} |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
/* Open diagnostics file */ |
431 |
|
|
if (diagFile) { |
432 |
|
|
if (!freopen(diagFile, "a", stderr)) quit(2); |
433 |
|
|
fprintf(stderr, "**************\n*** PID %5d: ", getpid()); |
434 |
|
|
printargs(argc, argv, stderr); |
435 |
|
|
putc('\n', stderr); |
436 |
|
|
fflush(stderr); |
437 |
|
|
} |
438 |
|
|
|
439 |
|
|
#ifdef NICE |
440 |
|
|
/* Lower priority */ |
441 |
|
|
nice(NICE); |
442 |
|
|
#endif |
443 |
|
|
|
444 |
|
|
if (octname == NULL) |
445 |
|
|
error(USER, "missing octree argument"); |
446 |
|
|
|
447 |
|
|
/* Allocate photon maps and set parameters */ |
448 |
|
|
for (i = 0; i < NUM_PMAP_TYPES; i++) { |
449 |
|
|
setPmapParam(photonMaps + i, pmapParams + i); |
450 |
|
|
|
451 |
|
|
/* Don't overwrite existing photon map unless clobbering enabled */ |
452 |
|
|
if (photonMaps [i] && !stat(photonMaps [i] -> fileName, &pmstat) && |
453 |
|
|
!clobber) { |
454 |
|
|
sprintf(errmsg, "photon map file %s exists, not overwritten", |
455 |
|
|
photonMaps [i] -> fileName); |
456 |
|
|
error(USER, errmsg); |
457 |
|
|
} |
458 |
|
|
} |
459 |
|
|
|
460 |
|
|
for (i = 0; i < NUM_PMAP_TYPES && !photonMaps [i]; i++); |
461 |
|
|
if (i >= NUM_PMAP_TYPES) |
462 |
|
|
error(USER, "no photon maps specified"); |
463 |
|
|
|
464 |
|
|
readoct(octname, loadflags, &thescene, NULL); |
465 |
|
|
nsceneobjs = nobjects; |
466 |
|
|
|
467 |
|
|
/* Get sources */ |
468 |
|
|
marksources(); |
469 |
|
|
|
470 |
|
|
/* Do forward pass and build photon maps */ |
471 |
|
|
if (contribPmap) |
472 |
|
|
/* Just build contrib pmap, ignore others */ |
473 |
|
|
distribPhotonContrib(contribPmap); |
474 |
|
|
else |
475 |
|
|
distribPhotons(photonMaps); |
476 |
|
|
|
477 |
|
|
/* Save photon maps; no idea why GCC needs an explicit cast here... */ |
478 |
|
|
savePmaps((const PhotonMap**)photonMaps, argc, argv); |
479 |
|
|
cleanUpPmaps(photonMaps); |
480 |
|
|
|
481 |
|
|
quit(0); |
482 |
|
|
|
483 |
|
|
badopt: |
484 |
|
|
sprintf(errmsg, "command line error at '%s'", argv[i]); |
485 |
|
|
error(USER, errmsg); |
486 |
|
|
|
487 |
|
|
#undef check |
488 |
|
|
#undef bool |
489 |
|
|
return 0; |
490 |
|
|
} |