| 12 |
|
#include <stdlib.h> |
| 13 |
|
#include <math.h> |
| 14 |
|
#include "platform.h" |
| 15 |
+ |
#include "calcomp.h" |
| 16 |
|
#include "bsdfrep.h" |
| 17 |
|
/* global argv[0] */ |
| 18 |
|
char *progname; |
| 19 |
|
/* percentage to cull (<0 to turn off) */ |
| 20 |
< |
int pctcull = 90; |
| 20 |
> |
double pctcull = 90.; |
| 21 |
|
/* sampling order */ |
| 22 |
|
int samp_order = 6; |
| 23 |
+ |
/* super-sampling threshold */ |
| 24 |
+ |
const double ssamp_thresh = 0.35; |
| 25 |
+ |
/* number of super-samples */ |
| 26 |
+ |
const int nssamp = 100; |
| 27 |
+ |
/* limit on number of RBF lobes */ |
| 28 |
+ |
static int lobe_lim = 15000; |
| 29 |
|
|
| 30 |
+ |
/* Output XML prologue to stdout */ |
| 31 |
+ |
static void |
| 32 |
+ |
xml_prologue(int ac, char *av[]) |
| 33 |
+ |
{ |
| 34 |
+ |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
| 35 |
+ |
puts("<WindowElement xmlns=\"http://windows.lbl.gov\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://windows.lbl.gov/BSDF-v1.4.xsd\">"); |
| 36 |
+ |
fputs("<!-- File produced by:", stdout); |
| 37 |
+ |
while (ac-- > 0) { |
| 38 |
+ |
fputc(' ', stdout); |
| 39 |
+ |
fputs(*av++, stdout); |
| 40 |
+ |
} |
| 41 |
+ |
puts(" -->"); |
| 42 |
+ |
puts("<WindowElementType>System</WindowElementType>"); |
| 43 |
+ |
puts("<FileType>BSDF</FileType>"); |
| 44 |
+ |
puts("<Optical>"); |
| 45 |
+ |
puts("<Layer>"); |
| 46 |
+ |
puts("\t<Material>"); |
| 47 |
+ |
puts("\t\t<Name>Name</Name>"); |
| 48 |
+ |
puts("\t\t<Manufacturer>Manufacturer</Manufacturer>"); |
| 49 |
+ |
puts("\t\t<DeviceType>Other</DeviceType>"); |
| 50 |
+ |
puts("\t</Material>"); |
| 51 |
+ |
puts("\t<DataDefinition>"); |
| 52 |
+ |
printf("\t\t<IncidentDataStructure>TensorTree%c</IncidentDataStructure>\n", |
| 53 |
+ |
single_plane_incident ? '3' : '4'); |
| 54 |
+ |
puts("\t</DataDefinition>"); |
| 55 |
+ |
} |
| 56 |
+ |
|
| 57 |
+ |
/* Output XML data prologue to stdout */ |
| 58 |
+ |
static void |
| 59 |
+ |
data_prologue() |
| 60 |
+ |
{ |
| 61 |
+ |
static const char *bsdf_type[4] = { |
| 62 |
+ |
"Reflection Front", |
| 63 |
+ |
"Transmission Front", |
| 64 |
+ |
"Transmission Back", |
| 65 |
+ |
"Reflection Back" |
| 66 |
+ |
}; |
| 67 |
+ |
|
| 68 |
+ |
puts("\t<WavelengthData>"); |
| 69 |
+ |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
| 70 |
+ |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
| 71 |
+ |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 72 |
+ |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
| 73 |
+ |
puts("\t\t<WavelengthDataBlock>"); |
| 74 |
+ |
printf("\t\t\t<WavelengthDataDirection>%s</WavelengthDataDirection>\n", |
| 75 |
+ |
bsdf_type[(input_orient>0)<<1 | (output_orient>0)]); |
| 76 |
+ |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
| 77 |
+ |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
| 78 |
+ |
puts("\t\t\t<ScatteringData>"); |
| 79 |
+ |
} |
| 80 |
+ |
|
| 81 |
+ |
/* Output XML data epilogue to stdout */ |
| 82 |
+ |
static void |
| 83 |
+ |
data_epilogue(void) |
| 84 |
+ |
{ |
| 85 |
+ |
puts("\t\t\t</ScatteringData>"); |
| 86 |
+ |
puts("\t\t</WavelengthDataBlock>"); |
| 87 |
+ |
puts("\t</WavelengthData>"); |
| 88 |
+ |
} |
| 89 |
+ |
|
| 90 |
+ |
/* Output XML epilogue to stdout */ |
| 91 |
+ |
static void |
| 92 |
+ |
xml_epilogue(void) |
| 93 |
+ |
{ |
| 94 |
+ |
puts("</Layer>"); |
| 95 |
+ |
puts("</Optical>"); |
| 96 |
+ |
puts("</WindowElement>"); |
| 97 |
+ |
} |
| 98 |
+ |
|
| 99 |
+ |
/* Compute absolute relative difference */ |
| 100 |
+ |
static double |
| 101 |
+ |
abs_diff(double v1, double v0) |
| 102 |
+ |
{ |
| 103 |
+ |
if ((v0 < 0) | (v1 < 0)) |
| 104 |
+ |
return(.0); |
| 105 |
+ |
v1 = (v1-v0)*2./(v0+v1+.0001); |
| 106 |
+ |
if (v1 < 0) |
| 107 |
+ |
return(-v1); |
| 108 |
+ |
return(v1); |
| 109 |
+ |
} |
| 110 |
+ |
|
| 111 |
|
/* Interpolate and output isotropic BSDF data */ |
| 112 |
|
static void |
| 113 |
< |
interp_isotropic() |
| 113 |
> |
eval_isotropic(char *funame) |
| 114 |
|
{ |
| 115 |
|
const int sqres = 1<<samp_order; |
| 116 |
|
FILE *ofp = NULL; |
| 117 |
+ |
int assignD = 0; |
| 118 |
|
char cmd[128]; |
| 119 |
|
int ix, ox, oy; |
| 120 |
< |
FVECT ivec, ovec; |
| 121 |
< |
double bsdf; |
| 122 |
< |
#if DEBUG |
| 123 |
< |
fprintf(stderr, "Writing isotropic order %d ", samp_order); |
| 124 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
| 125 |
< |
else fputs("raw data\n", stderr); |
| 126 |
< |
#endif |
| 38 |
< |
if (pctcull >= 0) { /* begin output */ |
| 39 |
< |
sprintf(cmd, "rttree_reduce -h -a -fd -r 3 -t %d -g %d", |
| 120 |
> |
double iovec[6]; |
| 121 |
> |
float bsdf; |
| 122 |
> |
|
| 123 |
> |
data_prologue(); /* begin output */ |
| 124 |
> |
if (pctcull >= 0) { |
| 125 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d", |
| 126 |
> |
(input_orient>0 ^ output_orient>0) ? "" : " -a", |
| 127 |
|
pctcull, samp_order); |
| 128 |
|
fflush(stdout); |
| 129 |
|
ofp = popen(cmd, "w"); |
| 135 |
|
SET_FILE_BINARY(ofp); |
| 136 |
|
} else |
| 137 |
|
fputs("{\n", stdout); |
| 138 |
+ |
/* need to assign Dx, Dy, Dz? */ |
| 139 |
+ |
if (funame != NULL) |
| 140 |
+ |
assignD = (fundefined(funame) < 6); |
| 141 |
|
/* run through directions */ |
| 142 |
|
for (ix = 0; ix < sqres/2; ix++) { |
| 143 |
< |
RBFNODE *rbf; |
| 144 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, .5); |
| 145 |
< |
ivec[2] = input_orient * |
| 146 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
| 147 |
< |
rbf = advect_rbf(ivec); |
| 148 |
< |
for (ox = 0; ox < sqres; ox++) |
| 143 |
> |
RBFNODE *rbf = NULL; |
| 144 |
> |
iovec[0] = 2.*(ix+.5)/sqres - 1.; |
| 145 |
> |
iovec[1] = .0; |
| 146 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
| 147 |
> |
if (funame == NULL) |
| 148 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
| 149 |
> |
for (ox = 0; ox < sqres; ox++) { |
| 150 |
> |
float last_bsdf = -1; |
| 151 |
|
for (oy = 0; oy < sqres; oy++) { |
| 152 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
| 153 |
< |
ovec[2] = output_orient * |
| 154 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
| 155 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
| 152 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 153 |
> |
iovec[5] = output_orient * |
| 154 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 155 |
> |
if (funame == NULL) |
| 156 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
| 157 |
> |
output_orient/iovec[5]; |
| 158 |
> |
else { |
| 159 |
> |
double ssa[3], ssvec[6], sum; |
| 160 |
> |
int ssi; |
| 161 |
> |
if (assignD) { |
| 162 |
> |
varset("Dx", '=', -iovec[3]); |
| 163 |
> |
varset("Dy", '=', -iovec[4]); |
| 164 |
> |
varset("Dz", '=', -iovec[5]); |
| 165 |
> |
++eclock; |
| 166 |
> |
} |
| 167 |
> |
bsdf = funvalue(funame, 6, iovec); |
| 168 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 169 |
> |
sum = 0; /* super-sample voxel */ |
| 170 |
> |
for (ssi = nssamp; ssi--; ) { |
| 171 |
> |
SDmultiSamp(ssa, 3, (ssi+drand48())/nssamp); |
| 172 |
> |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
| 173 |
> |
ssvec[1] = .0; |
| 174 |
> |
ssvec[2] = input_orient * |
| 175 |
> |
sqrt(1. - ssvec[0]*ssvec[0]); |
| 176 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
| 177 |
> |
(oy+ssa[2])/sqres); |
| 178 |
> |
ssvec[5] = output_orient * |
| 179 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
| 180 |
> |
ssvec[4]*ssvec[4]); |
| 181 |
> |
if (assignD) { |
| 182 |
> |
varset("Dx", '=', -iovec[3]); |
| 183 |
> |
varset("Dy", '=', -iovec[4]); |
| 184 |
> |
varset("Dz", '=', -iovec[5]); |
| 185 |
> |
++eclock; |
| 186 |
> |
} |
| 187 |
> |
sum += funvalue(funame, 6, ssvec); |
| 188 |
> |
} |
| 189 |
> |
bsdf = sum/nssamp; |
| 190 |
> |
} |
| 191 |
> |
} |
| 192 |
|
if (pctcull >= 0) |
| 193 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 194 |
|
else |
| 195 |
|
printf("\t%.3e\n", bsdf); |
| 196 |
+ |
last_bsdf = bsdf; |
| 197 |
|
} |
| 198 |
+ |
} |
| 199 |
|
if (rbf != NULL) |
| 200 |
|
free(rbf); |
| 201 |
|
} |
| 210 |
|
fputs("\t0\n", stdout); |
| 211 |
|
fputs("}\n", stdout); |
| 212 |
|
} |
| 213 |
+ |
data_epilogue(); |
| 214 |
|
} |
| 215 |
|
|
| 216 |
|
/* Interpolate and output anisotropic BSDF data */ |
| 217 |
|
static void |
| 218 |
< |
interp_anisotropic() |
| 218 |
> |
eval_anisotropic(char *funame) |
| 219 |
|
{ |
| 220 |
|
const int sqres = 1<<samp_order; |
| 221 |
|
FILE *ofp = NULL; |
| 222 |
+ |
int assignD = 0; |
| 223 |
|
char cmd[128]; |
| 224 |
|
int ix, iy, ox, oy; |
| 225 |
< |
FVECT ivec, ovec; |
| 226 |
< |
double bsdf; |
| 227 |
< |
#if DEBUG |
| 228 |
< |
fprintf(stderr, "Writing anisotropic order %d ", samp_order); |
| 229 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
| 230 |
< |
else fputs("raw data\n", stderr); |
| 231 |
< |
#endif |
| 100 |
< |
if (pctcull >= 0) { /* begin output */ |
| 101 |
< |
sprintf(cmd, "rttree_reduce -h -a -fd -r 4 -t %d -g %d", |
| 225 |
> |
double iovec[6]; |
| 226 |
> |
float bsdf; |
| 227 |
> |
|
| 228 |
> |
data_prologue(); /* begin output */ |
| 229 |
> |
if (pctcull >= 0) { |
| 230 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d", |
| 231 |
> |
(input_orient>0 ^ output_orient>0) ? "" : " -a", |
| 232 |
|
pctcull, samp_order); |
| 233 |
|
fflush(stdout); |
| 234 |
|
ofp = popen(cmd, "w"); |
| 239 |
|
} |
| 240 |
|
} else |
| 241 |
|
fputs("{\n", stdout); |
| 242 |
+ |
/* need to assign Dx, Dy, Dz? */ |
| 243 |
+ |
if (funame != NULL) |
| 244 |
+ |
assignD = (fundefined(funame) < 6); |
| 245 |
|
/* run through directions */ |
| 246 |
|
for (ix = 0; ix < sqres; ix++) |
| 247 |
|
for (iy = 0; iy < sqres; iy++) { |
| 248 |
< |
RBFNODE *rbf; |
| 249 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, (iy+.5)/sqres); |
| 250 |
< |
ivec[2] = input_orient * |
| 251 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
| 252 |
< |
rbf = advect_rbf(ivec); |
| 253 |
< |
for (ox = 0; ox < sqres; ox++) |
| 248 |
> |
RBFNODE *rbf = NULL; /* Klems reversal */ |
| 249 |
> |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
| 250 |
> |
iovec[2] = input_orient * |
| 251 |
> |
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
| 252 |
> |
if (funame == NULL) |
| 253 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
| 254 |
> |
for (ox = 0; ox < sqres; ox++) { |
| 255 |
> |
float last_bsdf = -1; |
| 256 |
|
for (oy = 0; oy < sqres; oy++) { |
| 257 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
| 258 |
< |
ovec[2] = output_orient * |
| 259 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
| 260 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
| 257 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 258 |
> |
iovec[5] = output_orient * |
| 259 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 260 |
> |
if (funame == NULL) |
| 261 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
| 262 |
> |
output_orient/iovec[5]; |
| 263 |
> |
else { |
| 264 |
> |
double ssa[4], ssvec[6], sum; |
| 265 |
> |
int ssi; |
| 266 |
> |
if (assignD) { |
| 267 |
> |
varset("Dx", '=', -iovec[3]); |
| 268 |
> |
varset("Dy", '=', -iovec[4]); |
| 269 |
> |
varset("Dz", '=', -iovec[5]); |
| 270 |
> |
++eclock; |
| 271 |
> |
} |
| 272 |
> |
bsdf = funvalue(funame, 6, iovec); |
| 273 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 274 |
> |
sum = 0; /* super-sample voxel */ |
| 275 |
> |
for (ssi = nssamp; ssi--; ) { |
| 276 |
> |
SDmultiSamp(ssa, 4, (ssi+drand48())/nssamp); |
| 277 |
> |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
| 278 |
> |
1.-(iy+ssa[1])/sqres); |
| 279 |
> |
ssvec[2] = output_orient * |
| 280 |
> |
sqrt(1. - ssvec[0]*ssvec[0] - |
| 281 |
> |
ssvec[1]*ssvec[1]); |
| 282 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
| 283 |
> |
(oy+ssa[3])/sqres); |
| 284 |
> |
ssvec[5] = output_orient * |
| 285 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
| 286 |
> |
ssvec[4]*ssvec[4]); |
| 287 |
> |
if (assignD) { |
| 288 |
> |
varset("Dx", '=', -iovec[3]); |
| 289 |
> |
varset("Dy", '=', -iovec[4]); |
| 290 |
> |
varset("Dz", '=', -iovec[5]); |
| 291 |
> |
++eclock; |
| 292 |
> |
} |
| 293 |
> |
sum += funvalue(funame, 6, ssvec); |
| 294 |
> |
} |
| 295 |
> |
bsdf = sum/nssamp; |
| 296 |
> |
} |
| 297 |
> |
} |
| 298 |
|
if (pctcull >= 0) |
| 299 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 300 |
|
else |
| 301 |
|
printf("\t%.3e\n", bsdf); |
| 302 |
+ |
last_bsdf = bsdf; |
| 303 |
|
} |
| 304 |
+ |
} |
| 305 |
|
if (rbf != NULL) |
| 306 |
|
free(rbf); |
| 307 |
|
} |
| 313 |
|
} |
| 314 |
|
} else |
| 315 |
|
fputs("}\n", stdout); |
| 316 |
+ |
data_epilogue(); |
| 317 |
|
} |
| 318 |
|
|
| 319 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
| 320 |
|
int |
| 321 |
|
main(int argc, char *argv[]) |
| 322 |
|
{ |
| 323 |
< |
FILE *fpin = stdin; |
| 324 |
< |
int i; |
| 323 |
> |
int dofwd = 0, dobwd = 1; |
| 324 |
> |
int i, na; |
| 325 |
|
|
| 326 |
< |
progname = argv[0]; /* get options */ |
| 327 |
< |
while (argc > 2 && argv[1][0] == '-') { |
| 328 |
< |
switch (argv[1][1]) { |
| 326 |
> |
progname = argv[0]; |
| 327 |
> |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
| 328 |
> |
esupport &= ~(E_INCHAN|E_OUTCHAN); |
| 329 |
> |
scompile("PI:3.14159265358979323846", NULL, 0); |
| 330 |
> |
biggerlib(); |
| 331 |
> |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
| 332 |
> |
switch (argv[i][1]) { /* get options */ |
| 333 |
> |
case 'e': |
| 334 |
> |
scompile(argv[++i], NULL, 0); |
| 335 |
> |
break; |
| 336 |
> |
case 'f': |
| 337 |
> |
if (!argv[i][2]) |
| 338 |
> |
fcompile(argv[++i]); |
| 339 |
> |
else |
| 340 |
> |
dofwd = (argv[i][0] == '+'); |
| 341 |
> |
break; |
| 342 |
> |
case 'b': |
| 343 |
> |
dobwd = (argv[i][0] == '+'); |
| 344 |
> |
break; |
| 345 |
|
case 't': |
| 346 |
< |
pctcull = atoi(argv[2]); |
| 346 |
> |
switch (argv[i][2]) { |
| 347 |
> |
case '3': |
| 348 |
> |
single_plane_incident = 1; |
| 349 |
> |
break; |
| 350 |
> |
case '4': |
| 351 |
> |
single_plane_incident = 0; |
| 352 |
> |
break; |
| 353 |
> |
case '\0': |
| 354 |
> |
pctcull = atof(argv[++i]); |
| 355 |
> |
break; |
| 356 |
> |
default: |
| 357 |
> |
goto userr; |
| 358 |
> |
} |
| 359 |
|
break; |
| 360 |
|
case 'g': |
| 361 |
< |
samp_order = atoi(argv[2]); |
| 361 |
> |
samp_order = atoi(argv[++i]); |
| 362 |
|
break; |
| 363 |
+ |
case 'l': |
| 364 |
+ |
lobe_lim = atoi(argv[++i]); |
| 365 |
+ |
break; |
| 366 |
|
default: |
| 367 |
|
goto userr; |
| 368 |
|
} |
| 369 |
< |
argv += 2; argc -= 2; |
| 369 |
> |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
| 370 |
> |
void (*evf)(char *s) = single_plane_incident ? |
| 371 |
> |
&eval_isotropic : &eval_anisotropic; |
| 372 |
> |
if (i != argc-1 || fundefined(argv[i]) < 3) { |
| 373 |
> |
fprintf(stderr, |
| 374 |
> |
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
| 375 |
> |
progname); |
| 376 |
> |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n", |
| 377 |
> |
progname); |
| 378 |
> |
goto userr; |
| 379 |
> |
} |
| 380 |
> |
++eclock; |
| 381 |
> |
xml_prologue(argc, argv); /* start XML output */ |
| 382 |
> |
if (dofwd) { |
| 383 |
> |
input_orient = -1; |
| 384 |
> |
output_orient = -1; |
| 385 |
> |
(*evf)(argv[i]); /* outside reflectance */ |
| 386 |
> |
output_orient = 1; |
| 387 |
> |
(*evf)(argv[i]); /* outside -> inside */ |
| 388 |
> |
} |
| 389 |
> |
if (dobwd) { |
| 390 |
> |
input_orient = 1; |
| 391 |
> |
output_orient = 1; |
| 392 |
> |
(*evf)(argv[i]); /* inside reflectance */ |
| 393 |
> |
output_orient = -1; |
| 394 |
> |
(*evf)(argv[i]); /* inside -> outside */ |
| 395 |
> |
} |
| 396 |
> |
xml_epilogue(); /* finish XML output & exit */ |
| 397 |
> |
return(0); |
| 398 |
|
} |
| 399 |
< |
if (argc == 2) { /* open input if given */ |
| 400 |
< |
fpin = fopen(argv[1], "r"); |
| 401 |
< |
if (fpin == NULL) { |
| 402 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 403 |
< |
progname, argv[1]); |
| 404 |
< |
return(1); |
| 399 |
> |
if (i < argc) { /* open input files if given */ |
| 400 |
> |
int nbsdf = 0; |
| 401 |
> |
for ( ; i < argc; i++) { /* interpolate each component */ |
| 402 |
> |
FILE *fpin = fopen(argv[i], "rb"); |
| 403 |
> |
if (fpin == NULL) { |
| 404 |
> |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 405 |
> |
progname, argv[i]); |
| 406 |
> |
return(1); |
| 407 |
> |
} |
| 408 |
> |
if (!load_bsdf_rep(fpin)) |
| 409 |
> |
return(1); |
| 410 |
> |
fclose(fpin); |
| 411 |
> |
if (!nbsdf++) /* start XML on first dist. */ |
| 412 |
> |
xml_prologue(argc, argv); |
| 413 |
> |
if (single_plane_incident) |
| 414 |
> |
eval_isotropic(NULL); |
| 415 |
> |
else |
| 416 |
> |
eval_anisotropic(NULL); |
| 417 |
|
} |
| 418 |
< |
} else if (argc != 1) |
| 419 |
< |
goto userr; |
| 420 |
< |
SET_FILE_BINARY(fpin); /* load BSDF interpolant */ |
| 421 |
< |
if (!load_bsdf_rep(fpin)) |
| 418 |
> |
xml_epilogue(); /* finish XML output & exit */ |
| 419 |
> |
return(0); |
| 420 |
> |
} |
| 421 |
> |
SET_FILE_BINARY(stdin); /* load from stdin */ |
| 422 |
> |
if (!load_bsdf_rep(stdin)) |
| 423 |
|
return(1); |
| 424 |
< |
/* xml_prologue(); /* start XML output */ |
| 424 |
> |
xml_prologue(argc, argv); /* start XML output */ |
| 425 |
|
if (single_plane_incident) /* resample dist. */ |
| 426 |
< |
interp_isotropic(); |
| 426 |
> |
eval_isotropic(NULL); |
| 427 |
|
else |
| 428 |
< |
interp_anisotropic(); |
| 429 |
< |
/* xml_epilogue(); /* finish XML output */ |
| 428 |
> |
eval_anisotropic(NULL); |
| 429 |
> |
xml_epilogue(); /* finish XML output & exit */ |
| 430 |
|
return(0); |
| 431 |
|
userr: |
| 432 |
|
fprintf(stderr, |
| 433 |
< |
"Usage: %s [-t pctcull][-g log2grid] [bsdf.sir] > bsdf.xml\n", |
| 433 |
> |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
| 434 |
> |
progname); |
| 435 |
> |
fprintf(stderr, |
| 436 |
> |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 437 |
|
progname); |
| 438 |
|
return(1); |
| 439 |
|
} |
