| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
greg |
2.49 |
static const char RCSid[] = "$Id: bsdf2ttree.c,v 2.48 2020/05/07 16:54:10 greg Exp $"; |
| 3 |
greg |
2.1 |
#endif |
| 4 |
|
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/* |
| 5 |
|
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* Load measured BSDF interpolant and write out as XML file with tensor tree. |
| 6 |
|
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* |
| 7 |
|
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* G. Ward |
| 8 |
|
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*/ |
| 9 |
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| 10 |
|
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#define _USE_MATH_DEFINES |
| 11 |
|
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#include <stdlib.h> |
| 12 |
|
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#include <math.h> |
| 13 |
greg |
2.23 |
#include "random.h" |
| 14 |
greg |
2.1 |
#include "platform.h" |
| 15 |
greg |
2.34 |
#include "paths.h" |
| 16 |
|
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#include "rtio.h" |
| 17 |
greg |
2.11 |
#include "calcomp.h" |
| 18 |
greg |
2.1 |
#include "bsdfrep.h" |
| 19 |
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/* global argv[0] */ |
| 20 |
|
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char *progname; |
| 21 |
greg |
2.41 |
/* reciprocity averaging option */ |
| 22 |
|
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static const char *recip = " -a"; |
| 23 |
greg |
2.1 |
/* percentage to cull (<0 to turn off) */ |
| 24 |
greg |
2.31 |
static double pctcull = 90.; |
| 25 |
greg |
2.1 |
/* sampling order */ |
| 26 |
greg |
2.31 |
static int samp_order = 6; |
| 27 |
greg |
2.15 |
/* super-sampling threshold */ |
| 28 |
greg |
2.48 |
static double ssamp_thresh = 0.35; |
| 29 |
greg |
2.15 |
/* number of super-samples */ |
| 30 |
greg |
2.28 |
#ifndef NSSAMP |
| 31 |
greg |
2.46 |
#define NSSAMP 256 |
| 32 |
greg |
2.28 |
#endif |
| 33 |
greg |
2.18 |
/* limit on number of RBF lobes */ |
| 34 |
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static int lobe_lim = 15000; |
| 35 |
greg |
2.26 |
/* progress bar length */ |
| 36 |
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static int do_prog = 79; |
| 37 |
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| 38 |
greg |
2.34 |
#define MAXCARG 512 /* wrapBSDF command */ |
| 39 |
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static char *wrapBSDF[MAXCARG] = {"wrapBSDF", "-U"}; |
| 40 |
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static int wbsdfac = 2; |
| 41 |
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| 42 |
greg |
2.39 |
/* Add argument to wrapBSDF, allocating space if !isstatic */ |
| 43 |
greg |
2.34 |
static void |
| 44 |
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add_wbsdf(const char *arg, int isstatic) |
| 45 |
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{ |
| 46 |
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if (arg == NULL) |
| 47 |
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return; |
| 48 |
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if (wbsdfac >= MAXCARG-1) { |
| 49 |
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fputs(progname, stderr); |
| 50 |
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fputs(": too many command arguments to wrapBSDF\n", stderr); |
| 51 |
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exit(1); |
| 52 |
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} |
| 53 |
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if (!*arg) |
| 54 |
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arg = ""; |
| 55 |
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else if (!isstatic) |
| 56 |
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arg = savqstr((char *)arg); |
| 57 |
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| 58 |
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wrapBSDF[wbsdfac++] = (char *)arg; |
| 59 |
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} |
| 60 |
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| 61 |
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/* Create Yuv component file and add appropriate arguments */ |
| 62 |
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static char * |
| 63 |
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create_component_file(int c) |
| 64 |
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{ |
| 65 |
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static const char sname[3][6] = {"CIE-Y", "CIE-u", "CIE-v"}; |
| 66 |
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static const char cname[4][4] = {"-rf", "-tf", "-tb", "-rb"}; |
| 67 |
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char *tfname = mktemp(savqstr(TEMPLATE)); |
| 68 |
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| 69 |
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add_wbsdf("-s", 1); add_wbsdf(sname[c], 1); |
| 70 |
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add_wbsdf(cname[(input_orient>0)<<1 | (output_orient>0)], 1); |
| 71 |
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add_wbsdf(tfname, 1); |
| 72 |
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return(tfname); |
| 73 |
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} |
| 74 |
greg |
2.26 |
|
| 75 |
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/* Start new progress bar */ |
| 76 |
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#define prog_start(s) if (do_prog) fprintf(stderr, "%s: %s...\n", progname, s); else |
| 77 |
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| 78 |
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/* Draw progress bar of the appropriate length */ |
| 79 |
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static void |
| 80 |
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prog_show(double frac) |
| 81 |
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{ |
| 82 |
greg |
2.30 |
static unsigned call_cnt = 0; |
| 83 |
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static char lastc[] = "-\\|/"; |
| 84 |
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char pbar[256]; |
| 85 |
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int nchars; |
| 86 |
greg |
2.26 |
|
| 87 |
greg |
2.30 |
if (do_prog <= 1) return; |
| 88 |
greg |
2.26 |
if (do_prog > sizeof(pbar)-2) |
| 89 |
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do_prog = sizeof(pbar)-2; |
| 90 |
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if (frac < 0) frac = 0; |
| 91 |
greg |
2.30 |
else if (frac >= 1) frac = .9999; |
| 92 |
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nchars = do_prog*frac; |
| 93 |
greg |
2.26 |
pbar[0] = '\r'; |
| 94 |
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memset(pbar+1, '*', nchars); |
| 95 |
greg |
2.30 |
pbar[nchars+1] = lastc[call_cnt++ & 3]; |
| 96 |
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memset(pbar+2+nchars, '-', do_prog-nchars-1); |
| 97 |
greg |
2.26 |
pbar[do_prog+1] = '\0'; |
| 98 |
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fputs(pbar, stderr); |
| 99 |
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} |
| 100 |
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| 101 |
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/* Finish progress bar */ |
| 102 |
greg |
2.27 |
static void |
| 103 |
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prog_done(void) |
| 104 |
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{ |
| 105 |
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int n = do_prog; |
| 106 |
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| 107 |
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if (n <= 1) return; |
| 108 |
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fputc('\r', stderr); |
| 109 |
|
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while (n--) |
| 110 |
|
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fputc(' ', stderr); |
| 111 |
|
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fputc('\r', stderr); |
| 112 |
|
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} |
| 113 |
greg |
2.1 |
|
| 114 |
greg |
2.15 |
/* Compute absolute relative difference */ |
| 115 |
|
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static double |
| 116 |
|
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abs_diff(double v1, double v0) |
| 117 |
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{ |
| 118 |
|
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if ((v0 < 0) | (v1 < 0)) |
| 119 |
|
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return(.0); |
| 120 |
|
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v1 = (v1-v0)*2./(v0+v1+.0001); |
| 121 |
|
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if (v1 < 0) |
| 122 |
|
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return(-v1); |
| 123 |
|
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return(v1); |
| 124 |
|
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} |
| 125 |
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| 126 |
greg |
2.1 |
/* Interpolate and output isotropic BSDF data */ |
| 127 |
|
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static void |
| 128 |
greg |
2.11 |
eval_isotropic(char *funame) |
| 129 |
greg |
2.1 |
{ |
| 130 |
|
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const int sqres = 1<<samp_order; |
| 131 |
greg |
2.42 |
const double sqfact = 1./(double)sqres; |
| 132 |
greg |
2.47 |
float *ryval = NULL; |
| 133 |
|
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char *rtrip = NULL; |
| 134 |
greg |
2.34 |
FILE *ofp, *uvfp[2]; |
| 135 |
greg |
2.17 |
int assignD = 0; |
| 136 |
greg |
2.1 |
char cmd[128]; |
| 137 |
|
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int ix, ox, oy; |
| 138 |
greg |
2.11 |
double iovec[6]; |
| 139 |
greg |
2.34 |
float bsdf, uv[2]; |
| 140 |
greg |
2.15 |
|
| 141 |
greg |
2.11 |
if (pctcull >= 0) { |
| 142 |
greg |
2.41 |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 143 |
|
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recip, pctcull, samp_order, create_component_file(0)); |
| 144 |
greg |
2.1 |
ofp = popen(cmd, "w"); |
| 145 |
|
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if (ofp == NULL) { |
| 146 |
|
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fprintf(stderr, "%s: cannot create pipe to rttree_reduce\n", |
| 147 |
|
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progname); |
| 148 |
|
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exit(1); |
| 149 |
|
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} |
| 150 |
|
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SET_FILE_BINARY(ofp); |
| 151 |
greg |
2.25 |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
| 152 |
|
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flockfile(ofp); |
| 153 |
|
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#endif |
| 154 |
greg |
2.34 |
if (rbf_colorimetry == RBCtristimulus) { |
| 155 |
|
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double uvcull = 100. - (100.-pctcull)*.25; |
| 156 |
greg |
2.41 |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 157 |
|
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recip, uvcull, samp_order, create_component_file(1)); |
| 158 |
greg |
2.34 |
uvfp[0] = popen(cmd, "w"); |
| 159 |
greg |
2.41 |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 160 |
|
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recip, uvcull, samp_order, create_component_file(2)); |
| 161 |
greg |
2.34 |
uvfp[1] = popen(cmd, "w"); |
| 162 |
|
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if ((uvfp[0] == NULL) | (uvfp[1] == NULL)) { |
| 163 |
|
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fprintf(stderr, "%s: cannot open pipes to uv output\n", |
| 164 |
|
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progname); |
| 165 |
|
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exit(1); |
| 166 |
|
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} |
| 167 |
|
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SET_FILE_BINARY(uvfp[0]); SET_FILE_BINARY(uvfp[1]); |
| 168 |
|
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#ifdef getc_unlocked |
| 169 |
|
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flockfile(uvfp[0]); flockfile(uvfp[1]); |
| 170 |
|
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#endif |
| 171 |
|
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} |
| 172 |
|
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} else { |
| 173 |
|
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ofp = fopen(create_component_file(0), "w"); |
| 174 |
|
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if (ofp == NULL) { |
| 175 |
|
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fprintf(stderr, "%s: cannot create Y output file\n", |
| 176 |
|
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progname); |
| 177 |
|
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exit(1); |
| 178 |
|
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} |
| 179 |
|
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fputs("{\n", ofp); |
| 180 |
|
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if (rbf_colorimetry == RBCtristimulus) { |
| 181 |
|
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uvfp[0] = fopen(create_component_file(1), "w"); |
| 182 |
|
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uvfp[1] = fopen(create_component_file(2), "w"); |
| 183 |
|
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if ((uvfp[0] == NULL) | (uvfp[1] == NULL)) { |
| 184 |
|
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fprintf(stderr, "%s: cannot create uv output file(s)\n", |
| 185 |
|
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progname); |
| 186 |
|
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exit(1); |
| 187 |
|
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} |
| 188 |
|
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fputs("{\n", uvfp[0]); |
| 189 |
|
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fputs("{\n", uvfp[1]); |
| 190 |
|
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} |
| 191 |
|
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} |
| 192 |
greg |
2.35 |
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
| 193 |
greg |
2.17 |
assignD = (fundefined(funame) < 6); |
| 194 |
greg |
2.47 |
#if (NSSAMP > 0) |
| 195 |
greg |
2.49 |
rtrip = (char *)malloc(sqres); /* track sample triggerings */ |
| 196 |
greg |
2.47 |
ryval = (float *)calloc(sqres, sizeof(float)); |
| 197 |
|
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#endif |
| 198 |
greg |
2.1 |
/* run through directions */ |
| 199 |
|
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for (ix = 0; ix < sqres/2; ix++) { |
| 200 |
greg |
2.45 |
const int zipsgn = (ix & 1)*2 - 1; |
| 201 |
|
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RBFNODE *rbf = NULL; |
| 202 |
greg |
2.42 |
iovec[0] = 2.*sqfact*(ix+.5) - 1.; |
| 203 |
greg |
2.45 |
iovec[1] = zipsgn*sqfact*.5; |
| 204 |
|
|
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0] |
| 205 |
|
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- iovec[1]*iovec[1]); |
| 206 |
greg |
2.11 |
if (funame == NULL) |
| 207 |
greg |
2.18 |
rbf = advect_rbf(iovec, lobe_lim); |
| 208 |
greg |
2.15 |
for (ox = 0; ox < sqres; ox++) { |
| 209 |
greg |
2.47 |
SDValue sdv_next; |
| 210 |
|
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SDsquare2disk(iovec+3, (ox+.5)*sqfact, .5*sqfact); |
| 211 |
|
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iovec[5] = output_orient * |
| 212 |
|
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sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 213 |
|
|
if (funame == NULL) { |
| 214 |
|
|
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 215 |
|
|
} else { |
| 216 |
|
|
sdv_next.spec = c_dfcolor; |
| 217 |
|
|
if (assignD) { |
| 218 |
|
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varset("Dx", '=', -iovec[3]); |
| 219 |
|
|
varset("Dy", '=', -iovec[4]); |
| 220 |
|
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varset("Dz", '=', -iovec[5]); |
| 221 |
|
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++eclock; |
| 222 |
|
|
} |
| 223 |
|
|
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 224 |
|
|
} |
| 225 |
greg |
2.49 |
/* |
| 226 |
|
|
* Super-sample when we detect a difference from before |
| 227 |
|
|
* or after in this row, or the previous row in this column. |
| 228 |
|
|
* Also super-sample if the previous neighbors performed |
| 229 |
|
|
* super-sampling, regardless of any differences. |
| 230 |
|
|
*/ |
| 231 |
|
|
memset(rtrip, 0, sqres); |
| 232 |
greg |
2.1 |
for (oy = 0; oy < sqres; oy++) { |
| 233 |
greg |
2.47 |
int trip; |
| 234 |
|
|
bsdf = sdv_next.cieY; /* keeping one step ahead... */ |
| 235 |
|
|
if (oy < sqres-1) { |
| 236 |
|
|
SDsquare2disk(iovec+3, (ox+.5)*sqfact, (oy+1.5)*sqfact); |
| 237 |
|
|
iovec[5] = output_orient * |
| 238 |
greg |
2.11 |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 239 |
greg |
2.47 |
} |
| 240 |
greg |
2.34 |
if (funame == NULL) { |
| 241 |
greg |
2.47 |
SDValue sdv = sdv_next; |
| 242 |
|
|
if (oy < sqres-1) |
| 243 |
|
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eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 244 |
greg |
2.42 |
#if (NSSAMP > 0) |
| 245 |
greg |
2.47 |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 246 |
|
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(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 247 |
|
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(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 248 |
|
|
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 249 |
greg |
2.42 |
int ssi; |
| 250 |
|
|
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 251 |
|
|
/* super-sample voxel */ |
| 252 |
|
|
for (ssi = NSSAMP; ssi--; ) { |
| 253 |
|
|
SDmultiSamp(ssa, 2, (ssi+frandom()) * |
| 254 |
|
|
(1./NSSAMP)); |
| 255 |
|
|
SDsquare2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 256 |
|
|
(oy+ssa[1])*sqfact); |
| 257 |
|
|
iovec[5] = output_orient * |
| 258 |
|
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 259 |
|
|
eval_rbfcol(&sdv, rbf, iovec+3); |
| 260 |
|
|
sum += sdv.cieY; |
| 261 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 262 |
|
|
sdv.cieY /= |
| 263 |
|
|
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 264 |
|
|
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 265 |
|
|
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 266 |
|
|
} |
| 267 |
|
|
} |
| 268 |
|
|
bsdf = sum * (1./NSSAMP); |
| 269 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 270 |
|
|
uv[0] = usum / (sum+FTINY); |
| 271 |
|
|
uv[1] = vsum / (sum+FTINY); |
| 272 |
|
|
} |
| 273 |
|
|
} else |
| 274 |
|
|
#endif |
| 275 |
greg |
2.34 |
if (rbf_colorimetry == RBCtristimulus) { |
| 276 |
|
|
uv[0] = uv[1] = 1. / |
| 277 |
|
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 278 |
|
|
uv[0] *= 4.*sdv.spec.cx; |
| 279 |
|
|
uv[1] *= 9.*sdv.spec.cy; |
| 280 |
|
|
} |
| 281 |
|
|
} else { |
| 282 |
greg |
2.47 |
if (oy < sqres-1) { |
| 283 |
|
|
if (assignD) { |
| 284 |
|
|
varset("Dx", '=', -iovec[3]); |
| 285 |
|
|
varset("Dy", '=', -iovec[4]); |
| 286 |
|
|
varset("Dz", '=', -iovec[5]); |
| 287 |
|
|
++eclock; |
| 288 |
|
|
} |
| 289 |
|
|
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 290 |
greg |
2.17 |
} |
| 291 |
greg |
2.28 |
#if (NSSAMP > 0) |
| 292 |
greg |
2.47 |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 293 |
|
|
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 294 |
|
|
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 295 |
|
|
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 296 |
greg |
2.28 |
int ssi; |
| 297 |
greg |
2.45 |
double ssa[4], ssvec[6], sum = 0; |
| 298 |
greg |
2.28 |
/* super-sample voxel */ |
| 299 |
|
|
for (ssi = NSSAMP; ssi--; ) { |
| 300 |
greg |
2.45 |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 301 |
greg |
2.28 |
(1./NSSAMP)); |
| 302 |
greg |
2.42 |
ssvec[0] = 2.*sqfact*(ix+ssa[0]) - 1.; |
| 303 |
greg |
2.45 |
ssvec[1] = zipsgn*sqfact*ssa[1]; |
| 304 |
|
|
ssvec[2] = 1. - ssvec[0]*ssvec[0] |
| 305 |
|
|
- ssvec[1]*ssvec[1]; |
| 306 |
|
|
if (ssvec[2] < .0) { |
| 307 |
|
|
ssvec[1] = 0; |
| 308 |
|
|
ssvec[2] = 1. - ssvec[0]*ssvec[0]; |
| 309 |
|
|
} |
| 310 |
|
|
ssvec[2] = input_orient * sqrt(ssvec[2]); |
| 311 |
|
|
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 312 |
|
|
(oy+ssa[3])*sqfact); |
| 313 |
greg |
2.15 |
ssvec[5] = output_orient * |
| 314 |
|
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 315 |
|
|
ssvec[4]*ssvec[4]); |
| 316 |
greg |
2.17 |
if (assignD) { |
| 317 |
greg |
2.28 |
varset("Dx", '=', -ssvec[3]); |
| 318 |
|
|
varset("Dy", '=', -ssvec[4]); |
| 319 |
|
|
varset("Dz", '=', -ssvec[5]); |
| 320 |
greg |
2.17 |
++eclock; |
| 321 |
|
|
} |
| 322 |
greg |
2.16 |
sum += funvalue(funame, 6, ssvec); |
| 323 |
greg |
2.15 |
} |
| 324 |
greg |
2.42 |
bsdf = sum * (1./NSSAMP); |
| 325 |
greg |
2.15 |
} |
| 326 |
greg |
2.28 |
#endif |
| 327 |
greg |
2.15 |
} |
| 328 |
greg |
2.1 |
if (pctcull >= 0) |
| 329 |
greg |
2.37 |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 330 |
greg |
2.1 |
else |
| 331 |
greg |
2.34 |
fprintf(ofp, "\t%.3e\n", bsdf); |
| 332 |
|
|
|
| 333 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 334 |
|
|
if (pctcull >= 0) { |
| 335 |
greg |
2.37 |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 336 |
|
|
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 337 |
greg |
2.34 |
} else { |
| 338 |
|
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
| 339 |
|
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 340 |
|
|
} |
| 341 |
|
|
} |
| 342 |
greg |
2.47 |
if (ryval != NULL) { |
| 343 |
|
|
rtrip[oy] = trip; |
| 344 |
|
|
ryval[oy] = bsdf; |
| 345 |
|
|
} |
| 346 |
greg |
2.1 |
} |
| 347 |
greg |
2.15 |
} |
| 348 |
greg |
2.3 |
if (rbf != NULL) |
| 349 |
|
|
free(rbf); |
| 350 |
greg |
2.42 |
prog_show((ix+1.)*(2.*sqfact)); |
| 351 |
greg |
2.1 |
} |
| 352 |
greg |
2.35 |
prog_done(); |
| 353 |
greg |
2.47 |
if (ryval != NULL) { |
| 354 |
|
|
free(rtrip); |
| 355 |
|
|
free(ryval); |
| 356 |
|
|
} |
| 357 |
greg |
2.1 |
if (pctcull >= 0) { /* finish output */ |
| 358 |
|
|
if (pclose(ofp)) { |
| 359 |
greg |
2.34 |
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 360 |
|
|
progname); |
| 361 |
|
|
exit(1); |
| 362 |
|
|
} |
| 363 |
|
|
if (rbf_colorimetry == RBCtristimulus && |
| 364 |
|
|
(pclose(uvfp[0]) || pclose(uvfp[1]))) { |
| 365 |
|
|
fprintf(stderr, "%s: error running rttree_reduce on uv\n", |
| 366 |
|
|
progname); |
| 367 |
greg |
2.1 |
exit(1); |
| 368 |
|
|
} |
| 369 |
|
|
} else { |
| 370 |
|
|
for (ix = sqres*sqres*sqres/2; ix--; ) |
| 371 |
greg |
2.34 |
fputs("\t0\n", ofp); |
| 372 |
|
|
fputs("}\n", ofp); |
| 373 |
|
|
if (fclose(ofp)) { |
| 374 |
|
|
fprintf(stderr, "%s: error writing Y file\n", |
| 375 |
|
|
progname); |
| 376 |
|
|
exit(1); |
| 377 |
|
|
} |
| 378 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 379 |
|
|
for (ix = sqres*sqres*sqres/2; ix--; ) { |
| 380 |
|
|
fputs("\t0\n", uvfp[0]); |
| 381 |
|
|
fputs("\t0\n", uvfp[1]); |
| 382 |
|
|
} |
| 383 |
|
|
fputs("}\n", uvfp[0]); |
| 384 |
|
|
fputs("}\n", uvfp[1]); |
| 385 |
|
|
if (fclose(uvfp[0]) || fclose(uvfp[1])) { |
| 386 |
|
|
fprintf(stderr, "%s: error writing uv file(s)\n", |
| 387 |
|
|
progname); |
| 388 |
|
|
exit(1); |
| 389 |
|
|
} |
| 390 |
|
|
} |
| 391 |
greg |
2.1 |
} |
| 392 |
|
|
} |
| 393 |
|
|
|
| 394 |
|
|
/* Interpolate and output anisotropic BSDF data */ |
| 395 |
|
|
static void |
| 396 |
greg |
2.11 |
eval_anisotropic(char *funame) |
| 397 |
greg |
2.1 |
{ |
| 398 |
|
|
const int sqres = 1<<samp_order; |
| 399 |
greg |
2.42 |
const double sqfact = 1./(double)sqres; |
| 400 |
greg |
2.47 |
float *ryval = NULL; |
| 401 |
|
|
char *rtrip = NULL; |
| 402 |
greg |
2.34 |
FILE *ofp, *uvfp[2]; |
| 403 |
greg |
2.17 |
int assignD = 0; |
| 404 |
greg |
2.1 |
char cmd[128]; |
| 405 |
|
|
int ix, iy, ox, oy; |
| 406 |
greg |
2.11 |
double iovec[6]; |
| 407 |
greg |
2.34 |
float bsdf, uv[2]; |
| 408 |
greg |
2.15 |
|
| 409 |
greg |
2.11 |
if (pctcull >= 0) { |
| 410 |
greg |
2.35 |
const char *avgopt = (input_orient>0 ^ output_orient>0) |
| 411 |
greg |
2.41 |
? "" : recip; |
| 412 |
greg |
2.34 |
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
| 413 |
greg |
2.35 |
avgopt, pctcull, samp_order, |
| 414 |
|
|
create_component_file(0)); |
| 415 |
greg |
2.1 |
ofp = popen(cmd, "w"); |
| 416 |
|
|
if (ofp == NULL) { |
| 417 |
|
|
fprintf(stderr, "%s: cannot create pipe to rttree_reduce\n", |
| 418 |
|
|
progname); |
| 419 |
|
|
exit(1); |
| 420 |
|
|
} |
| 421 |
greg |
2.25 |
SET_FILE_BINARY(ofp); |
| 422 |
|
|
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
| 423 |
|
|
flockfile(ofp); |
| 424 |
|
|
#endif |
| 425 |
greg |
2.34 |
if (rbf_colorimetry == RBCtristimulus) { |
| 426 |
|
|
double uvcull = 100. - (100.-pctcull)*.25; |
| 427 |
|
|
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
| 428 |
greg |
2.35 |
avgopt, uvcull, samp_order, |
| 429 |
|
|
create_component_file(1)); |
| 430 |
greg |
2.34 |
uvfp[0] = popen(cmd, "w"); |
| 431 |
|
|
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
| 432 |
greg |
2.35 |
avgopt, uvcull, samp_order, |
| 433 |
|
|
create_component_file(2)); |
| 434 |
greg |
2.34 |
uvfp[1] = popen(cmd, "w"); |
| 435 |
|
|
if ((uvfp[0] == NULL) | (uvfp[1] == NULL)) { |
| 436 |
|
|
fprintf(stderr, "%s: cannot open pipes to uv output\n", |
| 437 |
|
|
progname); |
| 438 |
|
|
exit(1); |
| 439 |
|
|
} |
| 440 |
|
|
SET_FILE_BINARY(uvfp[0]); SET_FILE_BINARY(uvfp[1]); |
| 441 |
|
|
#ifdef getc_unlocked |
| 442 |
|
|
flockfile(uvfp[0]); flockfile(uvfp[1]); |
| 443 |
|
|
#endif |
| 444 |
|
|
} |
| 445 |
|
|
} else { |
| 446 |
|
|
ofp = fopen(create_component_file(0), "w"); |
| 447 |
|
|
if (ofp == NULL) { |
| 448 |
|
|
fprintf(stderr, "%s: cannot create Y output file\n", |
| 449 |
|
|
progname); |
| 450 |
|
|
exit(1); |
| 451 |
|
|
} |
| 452 |
|
|
fputs("{\n", ofp); |
| 453 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 454 |
|
|
uvfp[0] = fopen(create_component_file(1), "w"); |
| 455 |
|
|
uvfp[1] = fopen(create_component_file(2), "w"); |
| 456 |
|
|
if ((uvfp[0] == NULL) | (uvfp[1] == NULL)) { |
| 457 |
|
|
fprintf(stderr, "%s: cannot create uv output file(s)\n", |
| 458 |
|
|
progname); |
| 459 |
|
|
exit(1); |
| 460 |
|
|
} |
| 461 |
|
|
fputs("{\n", uvfp[0]); |
| 462 |
|
|
fputs("{\n", uvfp[1]); |
| 463 |
|
|
} |
| 464 |
|
|
} |
| 465 |
greg |
2.35 |
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
| 466 |
greg |
2.17 |
assignD = (fundefined(funame) < 6); |
| 467 |
greg |
2.47 |
#if (NSSAMP > 0) |
| 468 |
greg |
2.49 |
rtrip = (char *)malloc(sqres); /* track sample triggerings */ |
| 469 |
greg |
2.47 |
ryval = (float *)calloc(sqres, sizeof(float)); |
| 470 |
|
|
#endif |
| 471 |
greg |
2.1 |
/* run through directions */ |
| 472 |
|
|
for (ix = 0; ix < sqres; ix++) |
| 473 |
|
|
for (iy = 0; iy < sqres; iy++) { |
| 474 |
greg |
2.11 |
RBFNODE *rbf = NULL; /* Klems reversal */ |
| 475 |
greg |
2.42 |
SDsquare2disk(iovec, 1.-(ix+.5)*sqfact, 1.-(iy+.5)*sqfact); |
| 476 |
greg |
2.11 |
iovec[2] = input_orient * |
| 477 |
|
|
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
| 478 |
|
|
if (funame == NULL) |
| 479 |
greg |
2.18 |
rbf = advect_rbf(iovec, lobe_lim); |
| 480 |
greg |
2.15 |
for (ox = 0; ox < sqres; ox++) { |
| 481 |
greg |
2.47 |
SDValue sdv_next; |
| 482 |
|
|
SDsquare2disk(iovec+3, (ox+.5)*sqfact, .5*sqfact); |
| 483 |
|
|
iovec[5] = output_orient * |
| 484 |
|
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 485 |
|
|
if (funame == NULL) { |
| 486 |
|
|
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 487 |
|
|
} else { |
| 488 |
|
|
sdv_next.spec = c_dfcolor; |
| 489 |
|
|
if (assignD) { |
| 490 |
|
|
varset("Dx", '=', -iovec[3]); |
| 491 |
|
|
varset("Dy", '=', -iovec[4]); |
| 492 |
|
|
varset("Dz", '=', -iovec[5]); |
| 493 |
|
|
++eclock; |
| 494 |
|
|
} |
| 495 |
|
|
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 496 |
|
|
} |
| 497 |
greg |
2.49 |
/* |
| 498 |
|
|
* Super-sample when we detect a difference from before |
| 499 |
|
|
* or after in this row, or the previous row in this column. |
| 500 |
|
|
* Also super-sample if the previous neighbors performed |
| 501 |
|
|
* super-sampling, regardless of any differences. |
| 502 |
|
|
*/ |
| 503 |
|
|
memset(rtrip, 0, sqres); |
| 504 |
greg |
2.1 |
for (oy = 0; oy < sqres; oy++) { |
| 505 |
greg |
2.47 |
int trip; |
| 506 |
|
|
bsdf = sdv_next.cieY; /* keeping one step ahead... */ |
| 507 |
|
|
if (oy < sqres-1) { |
| 508 |
|
|
SDsquare2disk(iovec+3, (ox+.5)*sqfact, (oy+1.5)*sqfact); |
| 509 |
|
|
iovec[5] = output_orient * |
| 510 |
greg |
2.11 |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 511 |
greg |
2.47 |
} |
| 512 |
greg |
2.34 |
if (funame == NULL) { |
| 513 |
greg |
2.47 |
SDValue sdv = sdv_next; |
| 514 |
|
|
if (oy < sqres-1) |
| 515 |
|
|
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 516 |
greg |
2.42 |
#if (NSSAMP > 0) |
| 517 |
greg |
2.47 |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 518 |
|
|
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 519 |
|
|
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 520 |
|
|
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 521 |
greg |
2.42 |
int ssi; |
| 522 |
|
|
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 523 |
|
|
/* super-sample voxel */ |
| 524 |
|
|
for (ssi = NSSAMP; ssi--; ) { |
| 525 |
|
|
SDmultiSamp(ssa, 2, (ssi+frandom()) * |
| 526 |
|
|
(1./NSSAMP)); |
| 527 |
|
|
SDsquare2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 528 |
|
|
(oy+ssa[1])*sqfact); |
| 529 |
|
|
iovec[5] = output_orient * |
| 530 |
|
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 531 |
|
|
eval_rbfcol(&sdv, rbf, iovec+3); |
| 532 |
|
|
sum += sdv.cieY; |
| 533 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 534 |
|
|
sdv.cieY /= |
| 535 |
|
|
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 536 |
|
|
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 537 |
|
|
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 538 |
|
|
} |
| 539 |
|
|
} |
| 540 |
|
|
bsdf = sum * (1./NSSAMP); |
| 541 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 542 |
|
|
uv[0] = usum / (sum+FTINY); |
| 543 |
|
|
uv[1] = vsum / (sum+FTINY); |
| 544 |
|
|
} |
| 545 |
|
|
} else |
| 546 |
|
|
#endif |
| 547 |
greg |
2.34 |
if (rbf_colorimetry == RBCtristimulus) { |
| 548 |
|
|
uv[0] = uv[1] = 1. / |
| 549 |
|
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 550 |
|
|
uv[0] *= 4.*sdv.spec.cx; |
| 551 |
|
|
uv[1] *= 9.*sdv.spec.cy; |
| 552 |
|
|
} |
| 553 |
|
|
} else { |
| 554 |
greg |
2.47 |
if (oy < sqres-1) { |
| 555 |
|
|
if (assignD) { |
| 556 |
|
|
varset("Dx", '=', -iovec[3]); |
| 557 |
|
|
varset("Dy", '=', -iovec[4]); |
| 558 |
|
|
varset("Dz", '=', -iovec[5]); |
| 559 |
|
|
++eclock; |
| 560 |
|
|
} |
| 561 |
|
|
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 562 |
greg |
2.17 |
} |
| 563 |
greg |
2.28 |
#if (NSSAMP > 0) |
| 564 |
greg |
2.47 |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 565 |
|
|
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 566 |
|
|
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 567 |
|
|
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 568 |
greg |
2.28 |
int ssi; |
| 569 |
|
|
double ssa[4], ssvec[6], sum = 0; |
| 570 |
|
|
/* super-sample voxel */ |
| 571 |
|
|
for (ssi = NSSAMP; ssi--; ) { |
| 572 |
|
|
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 573 |
|
|
(1./NSSAMP)); |
| 574 |
greg |
2.42 |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])*sqfact, |
| 575 |
|
|
1.-(iy+ssa[1])*sqfact); |
| 576 |
greg |
2.28 |
ssvec[2] = input_orient * |
| 577 |
greg |
2.15 |
sqrt(1. - ssvec[0]*ssvec[0] - |
| 578 |
|
|
ssvec[1]*ssvec[1]); |
| 579 |
greg |
2.42 |
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 580 |
|
|
(oy+ssa[3])*sqfact); |
| 581 |
greg |
2.15 |
ssvec[5] = output_orient * |
| 582 |
|
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 583 |
|
|
ssvec[4]*ssvec[4]); |
| 584 |
greg |
2.17 |
if (assignD) { |
| 585 |
greg |
2.28 |
varset("Dx", '=', -ssvec[3]); |
| 586 |
|
|
varset("Dy", '=', -ssvec[4]); |
| 587 |
|
|
varset("Dz", '=', -ssvec[5]); |
| 588 |
greg |
2.17 |
++eclock; |
| 589 |
|
|
} |
| 590 |
greg |
2.16 |
sum += funvalue(funame, 6, ssvec); |
| 591 |
greg |
2.15 |
} |
| 592 |
greg |
2.42 |
bsdf = sum * (1./NSSAMP); |
| 593 |
greg |
2.15 |
} |
| 594 |
greg |
2.28 |
#endif |
| 595 |
greg |
2.15 |
} |
| 596 |
greg |
2.1 |
if (pctcull >= 0) |
| 597 |
greg |
2.37 |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 598 |
greg |
2.1 |
else |
| 599 |
greg |
2.34 |
fprintf(ofp, "\t%.3e\n", bsdf); |
| 600 |
|
|
|
| 601 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 602 |
|
|
if (pctcull >= 0) { |
| 603 |
greg |
2.37 |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 604 |
|
|
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 605 |
greg |
2.34 |
} else { |
| 606 |
|
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
| 607 |
|
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 608 |
|
|
} |
| 609 |
|
|
} |
| 610 |
greg |
2.47 |
if (ryval != NULL) { |
| 611 |
|
|
rtrip[oy] = trip; |
| 612 |
|
|
ryval[oy] = bsdf; |
| 613 |
|
|
} |
| 614 |
greg |
2.1 |
} |
| 615 |
greg |
2.3 |
if (rbf != NULL) |
| 616 |
|
|
free(rbf); |
| 617 |
greg |
2.26 |
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
| 618 |
greg |
2.1 |
} |
| 619 |
greg |
2.47 |
} |
| 620 |
greg |
2.35 |
prog_done(); |
| 621 |
greg |
2.47 |
if (ryval != NULL) { |
| 622 |
|
|
free(rtrip); |
| 623 |
|
|
free(ryval); |
| 624 |
|
|
} |
| 625 |
greg |
2.1 |
if (pctcull >= 0) { /* finish output */ |
| 626 |
|
|
if (pclose(ofp)) { |
| 627 |
greg |
2.34 |
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 628 |
|
|
progname); |
| 629 |
|
|
exit(1); |
| 630 |
|
|
} |
| 631 |
|
|
if (rbf_colorimetry == RBCtristimulus && |
| 632 |
|
|
(pclose(uvfp[0]) || pclose(uvfp[1]))) { |
| 633 |
|
|
fprintf(stderr, "%s: error running rttree_reduce on uv\n", |
| 634 |
|
|
progname); |
| 635 |
greg |
2.1 |
exit(1); |
| 636 |
|
|
} |
| 637 |
greg |
2.34 |
} else { |
| 638 |
|
|
fputs("}\n", ofp); |
| 639 |
|
|
if (fclose(ofp)) { |
| 640 |
|
|
fprintf(stderr, "%s: error writing Y file\n", |
| 641 |
|
|
progname); |
| 642 |
|
|
exit(1); |
| 643 |
|
|
} |
| 644 |
|
|
if (rbf_colorimetry == RBCtristimulus) { |
| 645 |
|
|
fputs("}\n", uvfp[0]); |
| 646 |
|
|
fputs("}\n", uvfp[1]); |
| 647 |
|
|
if (fclose(uvfp[0]) || fclose(uvfp[1])) { |
| 648 |
|
|
fprintf(stderr, "%s: error writing uv file(s)\n", |
| 649 |
|
|
progname); |
| 650 |
|
|
exit(1); |
| 651 |
|
|
} |
| 652 |
|
|
} |
| 653 |
|
|
} |
| 654 |
greg |
2.5 |
} |
| 655 |
|
|
|
| 656 |
schorsch |
2.36 |
#if defined(_WIN32) || defined(_WIN64) |
| 657 |
greg |
2.34 |
/* Execute wrapBSDF command (may never return) */ |
| 658 |
|
|
static int |
| 659 |
|
|
wrap_up(void) |
| 660 |
|
|
{ |
| 661 |
|
|
char cmd[8192]; |
| 662 |
|
|
|
| 663 |
|
|
if (bsdf_manuf[0]) { |
| 664 |
|
|
add_wbsdf("-f", 1); |
| 665 |
|
|
strcpy(cmd, "m="); |
| 666 |
|
|
strcpy(cmd+2, bsdf_manuf); |
| 667 |
|
|
add_wbsdf(cmd, 0); |
| 668 |
|
|
} |
| 669 |
|
|
if (bsdf_name[0]) { |
| 670 |
|
|
add_wbsdf("-f", 1); |
| 671 |
|
|
strcpy(cmd, "n="); |
| 672 |
|
|
strcpy(cmd+2, bsdf_name); |
| 673 |
|
|
add_wbsdf(cmd, 0); |
| 674 |
|
|
} |
| 675 |
|
|
if (!convert_commandline(cmd, sizeof(cmd), wrapBSDF)) { |
| 676 |
|
|
fputs(progname, stderr); |
| 677 |
|
|
fputs(": command line too long in wrap_up()\n", stderr); |
| 678 |
|
|
return(1); |
| 679 |
|
|
} |
| 680 |
|
|
return(system(cmd)); |
| 681 |
|
|
} |
| 682 |
|
|
#else |
| 683 |
|
|
/* Execute wrapBSDF command (may never return) */ |
| 684 |
|
|
static int |
| 685 |
|
|
wrap_up(void) |
| 686 |
|
|
{ |
| 687 |
|
|
char buf[256]; |
| 688 |
|
|
char *compath = getpath((char *)wrapBSDF[0], getenv("PATH"), X_OK); |
| 689 |
|
|
|
| 690 |
|
|
if (compath == NULL) { |
| 691 |
|
|
fprintf(stderr, "%s: cannot locate %s\n", progname, wrapBSDF[0]); |
| 692 |
|
|
return(1); |
| 693 |
|
|
} |
| 694 |
|
|
if (bsdf_manuf[0]) { |
| 695 |
|
|
add_wbsdf("-f", 1); |
| 696 |
|
|
strcpy(buf, "m="); |
| 697 |
|
|
strcpy(buf+2, bsdf_manuf); |
| 698 |
|
|
add_wbsdf(buf, 0); |
| 699 |
|
|
} |
| 700 |
|
|
if (bsdf_name[0]) { |
| 701 |
|
|
add_wbsdf("-f", 1); |
| 702 |
|
|
strcpy(buf, "n="); |
| 703 |
|
|
strcpy(buf+2, bsdf_name); |
| 704 |
|
|
add_wbsdf(buf, 0); |
| 705 |
|
|
} |
| 706 |
|
|
execv(compath, wrapBSDF); /* successful call never returns */ |
| 707 |
|
|
perror(compath); |
| 708 |
|
|
return(1); |
| 709 |
|
|
} |
| 710 |
|
|
#endif |
| 711 |
|
|
|
| 712 |
greg |
2.1 |
/* Read in BSDF and interpolate as tensor tree representation */ |
| 713 |
|
|
int |
| 714 |
|
|
main(int argc, char *argv[]) |
| 715 |
|
|
{ |
| 716 |
greg |
2.34 |
static char tfmt[2][4] = {"t4", "t3"}; |
| 717 |
greg |
2.11 |
int dofwd = 0, dobwd = 1; |
| 718 |
greg |
2.34 |
char buf[2048]; |
| 719 |
greg |
2.11 |
int i, na; |
| 720 |
greg |
2.1 |
|
| 721 |
greg |
2.5 |
progname = argv[0]; |
| 722 |
greg |
2.11 |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
| 723 |
|
|
esupport &= ~(E_INCHAN|E_OUTCHAN); |
| 724 |
|
|
scompile("PI:3.14159265358979323846", NULL, 0); |
| 725 |
|
|
biggerlib(); |
| 726 |
greg |
2.41 |
for (i = 1; i < argc && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
| 727 |
greg |
2.11 |
switch (argv[i][1]) { /* get options */ |
| 728 |
|
|
case 'e': |
| 729 |
|
|
scompile(argv[++i], NULL, 0); |
| 730 |
greg |
2.46 |
if (single_plane_incident < 0) |
| 731 |
|
|
single_plane_incident = 0; |
| 732 |
greg |
2.11 |
break; |
| 733 |
|
|
case 'f': |
| 734 |
greg |
2.34 |
if (!argv[i][2]) { |
| 735 |
|
|
if (strchr(argv[++i], '=') != NULL) { |
| 736 |
|
|
add_wbsdf("-f", 1); |
| 737 |
|
|
add_wbsdf(argv[i], 1); |
| 738 |
greg |
2.43 |
} else { |
| 739 |
|
|
char *fpath = getpath(argv[i], |
| 740 |
|
|
getrlibpath(), 0); |
| 741 |
|
|
if (fpath == NULL) { |
| 742 |
|
|
fprintf(stderr, |
| 743 |
|
|
"%s: cannot find file '%s'\n", |
| 744 |
|
|
argv[0], argv[i]); |
| 745 |
|
|
return(1); |
| 746 |
|
|
} |
| 747 |
|
|
fcompile(fpath); |
| 748 |
greg |
2.45 |
if (single_plane_incident < 0) |
| 749 |
|
|
single_plane_incident = 0; |
| 750 |
greg |
2.43 |
} |
| 751 |
greg |
2.34 |
} else |
| 752 |
greg |
2.11 |
dofwd = (argv[i][0] == '+'); |
| 753 |
|
|
break; |
| 754 |
greg |
2.41 |
case 'a': |
| 755 |
|
|
recip = (argv[i][0] == '+') ? " -a" : ""; |
| 756 |
|
|
break; |
| 757 |
greg |
2.11 |
case 'b': |
| 758 |
|
|
dobwd = (argv[i][0] == '+'); |
| 759 |
|
|
break; |
| 760 |
greg |
2.1 |
case 't': |
| 761 |
greg |
2.11 |
switch (argv[i][2]) { |
| 762 |
|
|
case '3': |
| 763 |
greg |
2.13 |
single_plane_incident = 1; |
| 764 |
greg |
2.11 |
break; |
| 765 |
|
|
case '4': |
| 766 |
greg |
2.13 |
single_plane_incident = 0; |
| 767 |
greg |
2.11 |
break; |
| 768 |
|
|
case '\0': |
| 769 |
|
|
pctcull = atof(argv[++i]); |
| 770 |
|
|
break; |
| 771 |
|
|
default: |
| 772 |
|
|
goto userr; |
| 773 |
|
|
} |
| 774 |
greg |
2.1 |
break; |
| 775 |
|
|
case 'g': |
| 776 |
greg |
2.5 |
samp_order = atoi(argv[++i]); |
| 777 |
greg |
2.1 |
break; |
| 778 |
greg |
2.18 |
case 'l': |
| 779 |
|
|
lobe_lim = atoi(argv[++i]); |
| 780 |
|
|
break; |
| 781 |
greg |
2.26 |
case 'p': |
| 782 |
|
|
do_prog = atoi(argv[i]+2); |
| 783 |
|
|
break; |
| 784 |
greg |
2.34 |
case 'W': |
| 785 |
|
|
add_wbsdf(argv[i], 1); |
| 786 |
|
|
break; |
| 787 |
|
|
case 'u': |
| 788 |
|
|
case 'C': |
| 789 |
|
|
add_wbsdf(argv[i], 1); |
| 790 |
|
|
add_wbsdf(argv[++i], 1); |
| 791 |
|
|
break; |
| 792 |
greg |
2.1 |
default: |
| 793 |
|
|
goto userr; |
| 794 |
|
|
} |
| 795 |
greg |
2.34 |
strcpy(buf, "File produced by: "); |
| 796 |
|
|
if (convert_commandline(buf+18, sizeof(buf)-18, argv) != NULL) { |
| 797 |
|
|
add_wbsdf("-C", 1); add_wbsdf(buf, 0); |
| 798 |
|
|
} |
| 799 |
greg |
2.11 |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
| 800 |
|
|
void (*evf)(char *s) = single_plane_incident ? |
| 801 |
greg |
2.34 |
eval_isotropic : eval_anisotropic; |
| 802 |
greg |
2.17 |
if (i != argc-1 || fundefined(argv[i]) < 3) { |
| 803 |
greg |
2.12 |
fprintf(stderr, |
| 804 |
|
|
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
| 805 |
|
|
progname); |
| 806 |
greg |
2.24 |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n"); |
| 807 |
greg |
2.11 |
goto userr; |
| 808 |
greg |
2.12 |
} |
| 809 |
greg |
2.17 |
++eclock; |
| 810 |
greg |
2.48 |
ssamp_thresh *= 0.5; /* lower sampling threshold */ |
| 811 |
greg |
2.34 |
add_wbsdf("-a", 1); |
| 812 |
|
|
add_wbsdf(tfmt[single_plane_incident], 1); |
| 813 |
greg |
2.11 |
if (dofwd) { |
| 814 |
|
|
input_orient = -1; |
| 815 |
|
|
output_orient = -1; |
| 816 |
greg |
2.26 |
prog_start("Evaluating outside reflectance"); |
| 817 |
|
|
(*evf)(argv[i]); |
| 818 |
greg |
2.11 |
output_orient = 1; |
| 819 |
greg |
2.26 |
prog_start("Evaluating outside->inside transmission"); |
| 820 |
|
|
(*evf)(argv[i]); |
| 821 |
greg |
2.11 |
} |
| 822 |
|
|
if (dobwd) { |
| 823 |
|
|
input_orient = 1; |
| 824 |
|
|
output_orient = 1; |
| 825 |
greg |
2.26 |
prog_start("Evaluating inside reflectance"); |
| 826 |
|
|
(*evf)(argv[i]); |
| 827 |
greg |
2.11 |
output_orient = -1; |
| 828 |
greg |
2.26 |
prog_start("Evaluating inside->outside transmission"); |
| 829 |
|
|
(*evf)(argv[i]); |
| 830 |
greg |
2.11 |
} |
| 831 |
greg |
2.34 |
return(wrap_up()); |
| 832 |
greg |
2.11 |
} |
| 833 |
|
|
if (i < argc) { /* open input files if given */ |
| 834 |
greg |
2.12 |
int nbsdf = 0; |
| 835 |
greg |
2.11 |
for ( ; i < argc; i++) { /* interpolate each component */ |
| 836 |
greg |
2.26 |
char pbuf[256]; |
| 837 |
greg |
2.11 |
FILE *fpin = fopen(argv[i], "rb"); |
| 838 |
|
|
if (fpin == NULL) { |
| 839 |
|
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 840 |
|
|
progname, argv[i]); |
| 841 |
|
|
return(1); |
| 842 |
|
|
} |
| 843 |
|
|
if (!load_bsdf_rep(fpin)) |
| 844 |
|
|
return(1); |
| 845 |
|
|
fclose(fpin); |
| 846 |
greg |
2.26 |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
| 847 |
|
|
prog_start(pbuf); |
| 848 |
greg |
2.34 |
if (!nbsdf++) { |
| 849 |
|
|
add_wbsdf("-a", 1); |
| 850 |
|
|
add_wbsdf(tfmt[single_plane_incident], 1); |
| 851 |
|
|
} |
| 852 |
greg |
2.11 |
if (single_plane_incident) |
| 853 |
|
|
eval_isotropic(NULL); |
| 854 |
|
|
else |
| 855 |
|
|
eval_anisotropic(NULL); |
| 856 |
|
|
} |
| 857 |
greg |
2.34 |
return(wrap_up()); |
| 858 |
greg |
2.11 |
} |
| 859 |
|
|
SET_FILE_BINARY(stdin); /* load from stdin */ |
| 860 |
|
|
if (!load_bsdf_rep(stdin)) |
| 861 |
greg |
2.1 |
return(1); |
| 862 |
greg |
2.26 |
prog_start("Interpolating from standard input"); |
| 863 |
greg |
2.34 |
add_wbsdf("-a", 1); |
| 864 |
|
|
add_wbsdf(tfmt[single_plane_incident], 1); |
| 865 |
greg |
2.1 |
if (single_plane_incident) /* resample dist. */ |
| 866 |
greg |
2.11 |
eval_isotropic(NULL); |
| 867 |
greg |
2.1 |
else |
| 868 |
greg |
2.11 |
eval_anisotropic(NULL); |
| 869 |
greg |
2.34 |
|
| 870 |
|
|
return(wrap_up()); |
| 871 |
greg |
2.1 |
userr: |
| 872 |
|
|
fprintf(stderr, |
| 873 |
greg |
2.41 |
"Usage: %s [{+|-}a][-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
| 874 |
greg |
2.11 |
progname); |
| 875 |
|
|
fprintf(stderr, |
| 876 |
greg |
2.41 |
" or: %s -t{3|4} [{+|-}a][-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 877 |
greg |
2.1 |
progname); |
| 878 |
|
|
return(1); |
| 879 |
|
|
} |
