11 |
|
#include <stdio.h> |
12 |
|
#include <stdlib.h> |
13 |
|
#include <math.h> |
14 |
+ |
#include "random.h" |
15 |
|
#include "platform.h" |
16 |
+ |
#include "rtprocess.h" |
17 |
+ |
#include "calcomp.h" |
18 |
|
#include "bsdfrep.h" |
19 |
|
/* global argv[0] */ |
20 |
|
char *progname; |
21 |
|
/* percentage to cull (<0 to turn off) */ |
22 |
< |
int pctcull = 90; |
22 |
> |
double pctcull = 90.; |
23 |
|
/* sampling order */ |
24 |
|
int samp_order = 6; |
25 |
+ |
/* super-sampling threshold */ |
26 |
+ |
const double ssamp_thresh = 0.35; |
27 |
+ |
/* number of super-samples */ |
28 |
+ |
const int nssamp = 100; |
29 |
+ |
/* limit on number of RBF lobes */ |
30 |
+ |
static int lobe_lim = 15000; |
31 |
+ |
/* progress bar length */ |
32 |
+ |
static int do_prog = 79; |
33 |
|
|
34 |
+ |
|
35 |
+ |
/* Start new progress bar */ |
36 |
+ |
#define prog_start(s) if (do_prog) fprintf(stderr, "%s: %s...\n", progname, s); else |
37 |
+ |
|
38 |
+ |
/* Draw progress bar of the appropriate length */ |
39 |
+ |
static void |
40 |
+ |
prog_show(double frac) |
41 |
+ |
{ |
42 |
+ |
char pbar[256]; |
43 |
+ |
int nchars; |
44 |
+ |
|
45 |
+ |
if (do_prog <= 0) return; |
46 |
+ |
if (do_prog > sizeof(pbar)-2) |
47 |
+ |
do_prog = sizeof(pbar)-2; |
48 |
+ |
if (frac < 0) frac = 0; |
49 |
+ |
else if (frac > 1) frac = 1; |
50 |
+ |
nchars = do_prog*frac + .5; |
51 |
+ |
pbar[0] = '\r'; |
52 |
+ |
memset(pbar+1, '*', nchars); |
53 |
+ |
memset(pbar+1+nchars, '-', do_prog-nchars); |
54 |
+ |
pbar[do_prog+1] = '\0'; |
55 |
+ |
fputs(pbar, stderr); |
56 |
+ |
} |
57 |
+ |
|
58 |
+ |
/* Finish progress bar */ |
59 |
+ |
#define prog_done() if (do_prog) fputc('\n',stderr); else |
60 |
+ |
|
61 |
+ |
/* Output XML prologue to stdout */ |
62 |
+ |
static void |
63 |
+ |
xml_prologue(int ac, char *av[]) |
64 |
+ |
{ |
65 |
+ |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
66 |
+ |
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\">"); |
67 |
+ |
fputs("<!-- File produced by:", stdout); |
68 |
+ |
while (ac-- > 0) { |
69 |
+ |
fputc(' ', stdout); |
70 |
+ |
fputs(*av++, stdout); |
71 |
+ |
} |
72 |
+ |
puts(" -->"); |
73 |
+ |
puts("<WindowElementType>System</WindowElementType>"); |
74 |
+ |
puts("<FileType>BSDF</FileType>"); |
75 |
+ |
puts("<Optical>"); |
76 |
+ |
puts("<Layer>"); |
77 |
+ |
puts("\t<Material>"); |
78 |
+ |
printf("\t\t<Name>%s</Name>\n", bsdf_name[0] ? bsdf_name : "Unknown"); |
79 |
+ |
printf("\t\t<Manufacturer>%s</Manufacturer>\n", |
80 |
+ |
bsdf_manuf[0] ? bsdf_manuf : "Unknown"); |
81 |
+ |
puts("\t\t<DeviceType>Other</DeviceType>"); |
82 |
+ |
puts("\t</Material>"); |
83 |
+ |
puts("\t<DataDefinition>"); |
84 |
+ |
printf("\t\t<IncidentDataStructure>TensorTree%c</IncidentDataStructure>\n", |
85 |
+ |
single_plane_incident ? '3' : '4'); |
86 |
+ |
puts("\t</DataDefinition>"); |
87 |
+ |
} |
88 |
+ |
|
89 |
+ |
/* Output XML data prologue to stdout */ |
90 |
+ |
static void |
91 |
+ |
data_prologue() |
92 |
+ |
{ |
93 |
+ |
static const char *bsdf_type[4] = { |
94 |
+ |
"Reflection Front", |
95 |
+ |
"Transmission Front", |
96 |
+ |
"Transmission Back", |
97 |
+ |
"Reflection Back" |
98 |
+ |
}; |
99 |
+ |
|
100 |
+ |
puts("\t<WavelengthData>"); |
101 |
+ |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
102 |
+ |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
103 |
+ |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
104 |
+ |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
105 |
+ |
puts("\t\t<WavelengthDataBlock>"); |
106 |
+ |
printf("\t\t\t<WavelengthDataDirection>%s</WavelengthDataDirection>\n", |
107 |
+ |
bsdf_type[(input_orient>0)<<1 | (output_orient>0)]); |
108 |
+ |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
109 |
+ |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
110 |
+ |
puts("\t\t\t<ScatteringData>"); |
111 |
+ |
} |
112 |
+ |
|
113 |
+ |
/* Output XML data epilogue to stdout */ |
114 |
+ |
static void |
115 |
+ |
data_epilogue(void) |
116 |
+ |
{ |
117 |
+ |
puts("\t\t\t</ScatteringData>"); |
118 |
+ |
puts("\t\t</WavelengthDataBlock>"); |
119 |
+ |
puts("\t</WavelengthData>"); |
120 |
+ |
} |
121 |
+ |
|
122 |
+ |
/* Output XML epilogue to stdout */ |
123 |
+ |
static void |
124 |
+ |
xml_epilogue(void) |
125 |
+ |
{ |
126 |
+ |
puts("</Layer>"); |
127 |
+ |
puts("</Optical>"); |
128 |
+ |
puts("</WindowElement>"); |
129 |
+ |
} |
130 |
+ |
|
131 |
+ |
/* Compute absolute relative difference */ |
132 |
+ |
static double |
133 |
+ |
abs_diff(double v1, double v0) |
134 |
+ |
{ |
135 |
+ |
if ((v0 < 0) | (v1 < 0)) |
136 |
+ |
return(.0); |
137 |
+ |
v1 = (v1-v0)*2./(v0+v1+.0001); |
138 |
+ |
if (v1 < 0) |
139 |
+ |
return(-v1); |
140 |
+ |
return(v1); |
141 |
+ |
} |
142 |
+ |
|
143 |
|
/* Interpolate and output isotropic BSDF data */ |
144 |
|
static void |
145 |
< |
interp_isotropic() |
145 |
> |
eval_isotropic(char *funame) |
146 |
|
{ |
147 |
|
const int sqres = 1<<samp_order; |
148 |
|
FILE *ofp = NULL; |
149 |
+ |
int assignD = 0; |
150 |
|
char cmd[128]; |
151 |
|
int ix, ox, oy; |
152 |
< |
FVECT ivec, ovec; |
152 |
> |
double iovec[6]; |
153 |
|
float bsdf; |
154 |
< |
#if DEBUG |
155 |
< |
fprintf(stderr, "Writing isotropic order %d ", samp_order); |
156 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
157 |
< |
else fputs("raw data\n", stderr); |
37 |
< |
#endif |
38 |
< |
if (pctcull >= 0) { /* begin output */ |
39 |
< |
sprintf(cmd, "rttree_reduce -h -a -ff -r 3 -t %d -g %d", |
154 |
> |
|
155 |
> |
data_prologue(); /* begin output */ |
156 |
> |
if (pctcull >= 0) { |
157 |
> |
sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d", |
158 |
|
pctcull, samp_order); |
159 |
|
fflush(stdout); |
160 |
|
ofp = popen(cmd, "w"); |
164 |
|
exit(1); |
165 |
|
} |
166 |
|
SET_FILE_BINARY(ofp); |
167 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
168 |
+ |
flockfile(ofp); |
169 |
+ |
#endif |
170 |
|
} else |
171 |
|
fputs("{\n", stdout); |
172 |
+ |
/* need to assign Dx, Dy, Dz? */ |
173 |
+ |
if (funame != NULL) |
174 |
+ |
assignD = (fundefined(funame) < 6); |
175 |
|
/* run through directions */ |
176 |
|
for (ix = 0; ix < sqres/2; ix++) { |
177 |
< |
RBFNODE *rbf; |
178 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, .5); |
179 |
< |
ivec[2] = input_orient * |
180 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
181 |
< |
rbf = advect_rbf(ivec); |
182 |
< |
for (ox = 0; ox < sqres; ox++) |
177 |
> |
RBFNODE *rbf = NULL; |
178 |
> |
iovec[0] = 2.*(ix+.5)/sqres - 1.; |
179 |
> |
iovec[1] = .0; |
180 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
181 |
> |
if (funame == NULL) |
182 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
183 |
> |
for (ox = 0; ox < sqres; ox++) { |
184 |
> |
float last_bsdf = -1; |
185 |
|
for (oy = 0; oy < sqres; oy++) { |
186 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
187 |
< |
ovec[2] = output_orient * |
188 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
189 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
186 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
187 |
> |
iovec[5] = output_orient * |
188 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
189 |
> |
if (funame == NULL) |
190 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
191 |
> |
output_orient/iovec[5]; |
192 |
> |
else { |
193 |
> |
double ssa[3], ssvec[6], sum; |
194 |
> |
int ssi; |
195 |
> |
if (assignD) { |
196 |
> |
varset("Dx", '=', -iovec[3]); |
197 |
> |
varset("Dy", '=', -iovec[4]); |
198 |
> |
varset("Dz", '=', -iovec[5]); |
199 |
> |
++eclock; |
200 |
> |
} |
201 |
> |
bsdf = funvalue(funame, 6, iovec); |
202 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
203 |
> |
sum = 0; /* super-sample voxel */ |
204 |
> |
for (ssi = nssamp; ssi--; ) { |
205 |
> |
SDmultiSamp(ssa, 3, (ssi+frandom())/nssamp); |
206 |
> |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
207 |
> |
ssvec[1] = .0; |
208 |
> |
ssvec[2] = input_orient * |
209 |
> |
sqrt(1. - ssvec[0]*ssvec[0]); |
210 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
211 |
> |
(oy+ssa[2])/sqres); |
212 |
> |
ssvec[5] = output_orient * |
213 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
214 |
> |
ssvec[4]*ssvec[4]); |
215 |
> |
if (assignD) { |
216 |
> |
varset("Dx", '=', -iovec[3]); |
217 |
> |
varset("Dy", '=', -iovec[4]); |
218 |
> |
varset("Dz", '=', -iovec[5]); |
219 |
> |
++eclock; |
220 |
> |
} |
221 |
> |
sum += funvalue(funame, 6, ssvec); |
222 |
> |
} |
223 |
> |
bsdf = sum/nssamp; |
224 |
> |
} |
225 |
> |
} |
226 |
|
if (pctcull >= 0) |
227 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
228 |
|
else |
229 |
|
printf("\t%.3e\n", bsdf); |
230 |
+ |
last_bsdf = bsdf; |
231 |
|
} |
232 |
+ |
} |
233 |
|
if (rbf != NULL) |
234 |
|
free(rbf); |
235 |
+ |
prog_show((ix+1.)*(2./sqres)); |
236 |
|
} |
237 |
|
if (pctcull >= 0) { /* finish output */ |
238 |
|
if (pclose(ofp)) { |
245 |
|
fputs("\t0\n", stdout); |
246 |
|
fputs("}\n", stdout); |
247 |
|
} |
248 |
+ |
data_epilogue(); |
249 |
+ |
prog_done(); |
250 |
|
} |
251 |
|
|
252 |
|
/* Interpolate and output anisotropic BSDF data */ |
253 |
|
static void |
254 |
< |
interp_anisotropic() |
254 |
> |
eval_anisotropic(char *funame) |
255 |
|
{ |
256 |
|
const int sqres = 1<<samp_order; |
257 |
|
FILE *ofp = NULL; |
258 |
+ |
int assignD = 0; |
259 |
|
char cmd[128]; |
260 |
|
int ix, iy, ox, oy; |
261 |
< |
FVECT ivec, ovec; |
261 |
> |
double iovec[6]; |
262 |
|
float bsdf; |
263 |
< |
#if DEBUG |
264 |
< |
fprintf(stderr, "Writing anisotropic order %d ", samp_order); |
265 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
266 |
< |
else fputs("raw data\n", stderr); |
267 |
< |
#endif |
100 |
< |
if (pctcull >= 0) { /* begin output */ |
101 |
< |
sprintf(cmd, "rttree_reduce -h -a -ff -r 4 -t %d -g %d", |
263 |
> |
|
264 |
> |
data_prologue(); /* begin output */ |
265 |
> |
if (pctcull >= 0) { |
266 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d", |
267 |
> |
(input_orient>0 ^ output_orient>0) ? "" : " -a", |
268 |
|
pctcull, samp_order); |
269 |
|
fflush(stdout); |
270 |
|
ofp = popen(cmd, "w"); |
273 |
|
progname); |
274 |
|
exit(1); |
275 |
|
} |
276 |
+ |
SET_FILE_BINARY(ofp); |
277 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
278 |
+ |
flockfile(ofp); |
279 |
+ |
#endif |
280 |
|
} else |
281 |
|
fputs("{\n", stdout); |
282 |
+ |
/* need to assign Dx, Dy, Dz? */ |
283 |
+ |
if (funame != NULL) |
284 |
+ |
assignD = (fundefined(funame) < 6); |
285 |
|
/* run through directions */ |
286 |
|
for (ix = 0; ix < sqres; ix++) |
287 |
|
for (iy = 0; iy < sqres; iy++) { |
288 |
< |
RBFNODE *rbf; |
289 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, (iy+.5)/sqres); |
290 |
< |
ivec[2] = input_orient * |
291 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
292 |
< |
rbf = advect_rbf(ivec); |
293 |
< |
for (ox = 0; ox < sqres; ox++) |
288 |
> |
RBFNODE *rbf = NULL; /* Klems reversal */ |
289 |
> |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
290 |
> |
iovec[2] = input_orient * |
291 |
> |
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
292 |
> |
if (funame == NULL) |
293 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
294 |
> |
for (ox = 0; ox < sqres; ox++) { |
295 |
> |
float last_bsdf = -1; |
296 |
|
for (oy = 0; oy < sqres; oy++) { |
297 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
298 |
< |
ovec[2] = output_orient * |
299 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
300 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
297 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
298 |
> |
iovec[5] = output_orient * |
299 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
300 |
> |
if (funame == NULL) |
301 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
302 |
> |
output_orient/iovec[5]; |
303 |
> |
else { |
304 |
> |
double ssa[4], ssvec[6], sum; |
305 |
> |
int ssi; |
306 |
> |
if (assignD) { |
307 |
> |
varset("Dx", '=', -iovec[3]); |
308 |
> |
varset("Dy", '=', -iovec[4]); |
309 |
> |
varset("Dz", '=', -iovec[5]); |
310 |
> |
++eclock; |
311 |
> |
} |
312 |
> |
bsdf = funvalue(funame, 6, iovec); |
313 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
314 |
> |
sum = 0; /* super-sample voxel */ |
315 |
> |
for (ssi = nssamp; ssi--; ) { |
316 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom())/nssamp); |
317 |
> |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
318 |
> |
1.-(iy+ssa[1])/sqres); |
319 |
> |
ssvec[2] = output_orient * |
320 |
> |
sqrt(1. - ssvec[0]*ssvec[0] - |
321 |
> |
ssvec[1]*ssvec[1]); |
322 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
323 |
> |
(oy+ssa[3])/sqres); |
324 |
> |
ssvec[5] = output_orient * |
325 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
326 |
> |
ssvec[4]*ssvec[4]); |
327 |
> |
if (assignD) { |
328 |
> |
varset("Dx", '=', -iovec[3]); |
329 |
> |
varset("Dy", '=', -iovec[4]); |
330 |
> |
varset("Dz", '=', -iovec[5]); |
331 |
> |
++eclock; |
332 |
> |
} |
333 |
> |
sum += funvalue(funame, 6, ssvec); |
334 |
> |
} |
335 |
> |
bsdf = sum/nssamp; |
336 |
> |
} |
337 |
> |
} |
338 |
|
if (pctcull >= 0) |
339 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
340 |
|
else |
341 |
|
printf("\t%.3e\n", bsdf); |
342 |
+ |
last_bsdf = bsdf; |
343 |
|
} |
344 |
+ |
} |
345 |
|
if (rbf != NULL) |
346 |
|
free(rbf); |
347 |
+ |
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
348 |
|
} |
349 |
|
if (pctcull >= 0) { /* finish output */ |
350 |
|
if (pclose(ofp)) { |
354 |
|
} |
355 |
|
} else |
356 |
|
fputs("}\n", stdout); |
357 |
+ |
data_epilogue(); |
358 |
+ |
prog_done(); |
359 |
|
} |
360 |
|
|
361 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
362 |
|
int |
363 |
|
main(int argc, char *argv[]) |
364 |
|
{ |
365 |
< |
FILE *fpin = stdin; |
366 |
< |
int i; |
365 |
> |
int dofwd = 0, dobwd = 1; |
366 |
> |
int i, na; |
367 |
|
|
368 |
< |
progname = argv[0]; /* get options */ |
369 |
< |
while (argc > 2 && argv[1][0] == '-') { |
370 |
< |
switch (argv[1][1]) { |
368 |
> |
progname = argv[0]; |
369 |
> |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
370 |
> |
esupport &= ~(E_INCHAN|E_OUTCHAN); |
371 |
> |
scompile("PI:3.14159265358979323846", NULL, 0); |
372 |
> |
biggerlib(); |
373 |
> |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
374 |
> |
switch (argv[i][1]) { /* get options */ |
375 |
> |
case 'e': |
376 |
> |
scompile(argv[++i], NULL, 0); |
377 |
> |
break; |
378 |
> |
case 'f': |
379 |
> |
if (!argv[i][2]) |
380 |
> |
fcompile(argv[++i]); |
381 |
> |
else |
382 |
> |
dofwd = (argv[i][0] == '+'); |
383 |
> |
break; |
384 |
> |
case 'b': |
385 |
> |
dobwd = (argv[i][0] == '+'); |
386 |
> |
break; |
387 |
|
case 't': |
388 |
< |
pctcull = atoi(argv[2]); |
388 |
> |
switch (argv[i][2]) { |
389 |
> |
case '3': |
390 |
> |
single_plane_incident = 1; |
391 |
> |
break; |
392 |
> |
case '4': |
393 |
> |
single_plane_incident = 0; |
394 |
> |
break; |
395 |
> |
case '\0': |
396 |
> |
pctcull = atof(argv[++i]); |
397 |
> |
break; |
398 |
> |
default: |
399 |
> |
goto userr; |
400 |
> |
} |
401 |
|
break; |
402 |
|
case 'g': |
403 |
< |
samp_order = atoi(argv[2]); |
403 |
> |
samp_order = atoi(argv[++i]); |
404 |
|
break; |
405 |
+ |
case 'l': |
406 |
+ |
lobe_lim = atoi(argv[++i]); |
407 |
+ |
break; |
408 |
+ |
case 'p': |
409 |
+ |
do_prog = atoi(argv[i]+2); |
410 |
+ |
break; |
411 |
|
default: |
412 |
|
goto userr; |
413 |
|
} |
414 |
< |
argv += 2; argc -= 2; |
414 |
> |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
415 |
> |
void (*evf)(char *s) = single_plane_incident ? |
416 |
> |
&eval_isotropic : &eval_anisotropic; |
417 |
> |
if (i != argc-1 || fundefined(argv[i]) < 3) { |
418 |
> |
fprintf(stderr, |
419 |
> |
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
420 |
> |
progname); |
421 |
> |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n"); |
422 |
> |
goto userr; |
423 |
> |
} |
424 |
> |
++eclock; |
425 |
> |
xml_prologue(argc, argv); /* start XML output */ |
426 |
> |
if (dofwd) { |
427 |
> |
input_orient = -1; |
428 |
> |
output_orient = -1; |
429 |
> |
prog_start("Evaluating outside reflectance"); |
430 |
> |
(*evf)(argv[i]); |
431 |
> |
output_orient = 1; |
432 |
> |
prog_start("Evaluating outside->inside transmission"); |
433 |
> |
(*evf)(argv[i]); |
434 |
> |
} |
435 |
> |
if (dobwd) { |
436 |
> |
input_orient = 1; |
437 |
> |
output_orient = 1; |
438 |
> |
prog_start("Evaluating inside reflectance"); |
439 |
> |
(*evf)(argv[i]); |
440 |
> |
output_orient = -1; |
441 |
> |
prog_start("Evaluating inside->outside transmission"); |
442 |
> |
(*evf)(argv[i]); |
443 |
> |
} |
444 |
> |
xml_epilogue(); /* finish XML output & exit */ |
445 |
> |
return(0); |
446 |
|
} |
447 |
< |
if (argc == 2) { /* open input if given */ |
448 |
< |
fpin = fopen(argv[1], "r"); |
449 |
< |
if (fpin == NULL) { |
450 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
451 |
< |
progname, argv[1]); |
452 |
< |
return(1); |
447 |
> |
if (i < argc) { /* open input files if given */ |
448 |
> |
int nbsdf = 0; |
449 |
> |
for ( ; i < argc; i++) { /* interpolate each component */ |
450 |
> |
char pbuf[256]; |
451 |
> |
FILE *fpin = fopen(argv[i], "rb"); |
452 |
> |
if (fpin == NULL) { |
453 |
> |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
454 |
> |
progname, argv[i]); |
455 |
> |
return(1); |
456 |
> |
} |
457 |
> |
if (!load_bsdf_rep(fpin)) |
458 |
> |
return(1); |
459 |
> |
fclose(fpin); |
460 |
> |
if (!nbsdf++) /* start XML on first dist. */ |
461 |
> |
xml_prologue(argc, argv); |
462 |
> |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
463 |
> |
prog_start(pbuf); |
464 |
> |
if (single_plane_incident) |
465 |
> |
eval_isotropic(NULL); |
466 |
> |
else |
467 |
> |
eval_anisotropic(NULL); |
468 |
|
} |
469 |
< |
} else if (argc != 1) |
470 |
< |
goto userr; |
471 |
< |
SET_FILE_BINARY(fpin); /* load BSDF interpolant */ |
472 |
< |
if (!load_bsdf_rep(fpin)) |
469 |
> |
xml_epilogue(); /* finish XML output & exit */ |
470 |
> |
return(0); |
471 |
> |
} |
472 |
> |
SET_FILE_BINARY(stdin); /* load from stdin */ |
473 |
> |
if (!load_bsdf_rep(stdin)) |
474 |
|
return(1); |
475 |
< |
/* xml_prologue(); /* start XML output */ |
475 |
> |
xml_prologue(argc, argv); /* start XML output */ |
476 |
> |
prog_start("Interpolating from standard input"); |
477 |
|
if (single_plane_incident) /* resample dist. */ |
478 |
< |
interp_isotropic(); |
478 |
> |
eval_isotropic(NULL); |
479 |
|
else |
480 |
< |
interp_anisotropic(); |
481 |
< |
/* xml_epilogue(); /* finish XML output */ |
480 |
> |
eval_anisotropic(NULL); |
481 |
> |
xml_epilogue(); /* finish XML output & exit */ |
482 |
|
return(0); |
483 |
|
userr: |
484 |
|
fprintf(stderr, |
485 |
< |
"Usage: %s [-t pctcull][-g log2grid] [bsdf.sir] > bsdf.xml\n", |
485 |
> |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
486 |
> |
progname); |
487 |
> |
fprintf(stderr, |
488 |
> |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
489 |
|
progname); |
490 |
|
return(1); |
491 |
|
} |