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 |
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#include "bsdfrep.h" |
19 |
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/* global argv[0] */ |
20 |
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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 |
+ |
static void |
60 |
+ |
prog_done(void) |
61 |
+ |
{ |
62 |
+ |
int n = do_prog; |
63 |
+ |
|
64 |
+ |
if (n <= 1) return; |
65 |
+ |
fputc('\r', stderr); |
66 |
+ |
while (n--) |
67 |
+ |
fputc(' ', stderr); |
68 |
+ |
fputc('\r', stderr); |
69 |
+ |
} |
70 |
+ |
|
71 |
+ |
/* Output XML prologue to stdout */ |
72 |
+ |
static void |
73 |
+ |
xml_prologue(int ac, char *av[]) |
74 |
+ |
{ |
75 |
+ |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
76 |
+ |
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\">"); |
77 |
+ |
fputs("<!-- File produced by:", stdout); |
78 |
+ |
while (ac-- > 0) { |
79 |
+ |
fputc(' ', stdout); |
80 |
+ |
fputs(*av++, stdout); |
81 |
+ |
} |
82 |
+ |
puts(" -->"); |
83 |
+ |
puts("<WindowElementType>System</WindowElementType>"); |
84 |
+ |
puts("<FileType>BSDF</FileType>"); |
85 |
+ |
puts("<Optical>"); |
86 |
+ |
puts("<Layer>"); |
87 |
+ |
puts("\t<Material>"); |
88 |
+ |
printf("\t\t<Name>%s</Name>\n", bsdf_name[0] ? bsdf_name : "Unknown"); |
89 |
+ |
printf("\t\t<Manufacturer>%s</Manufacturer>\n", |
90 |
+ |
bsdf_manuf[0] ? bsdf_manuf : "Unknown"); |
91 |
+ |
puts("\t\t<DeviceType>Other</DeviceType>"); |
92 |
+ |
puts("\t</Material>"); |
93 |
+ |
puts("\t<DataDefinition>"); |
94 |
+ |
printf("\t\t<IncidentDataStructure>TensorTree%c</IncidentDataStructure>\n", |
95 |
+ |
single_plane_incident ? '3' : '4'); |
96 |
+ |
puts("\t</DataDefinition>"); |
97 |
+ |
} |
98 |
+ |
|
99 |
+ |
/* Output XML data prologue to stdout */ |
100 |
+ |
static void |
101 |
+ |
data_prologue() |
102 |
+ |
{ |
103 |
+ |
static const char *bsdf_type[4] = { |
104 |
+ |
"Reflection Front", |
105 |
+ |
"Transmission Front", |
106 |
+ |
"Transmission Back", |
107 |
+ |
"Reflection Back" |
108 |
+ |
}; |
109 |
+ |
|
110 |
+ |
puts("\t<WavelengthData>"); |
111 |
+ |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
112 |
+ |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
113 |
+ |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
114 |
+ |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
115 |
+ |
puts("\t\t<WavelengthDataBlock>"); |
116 |
+ |
printf("\t\t\t<WavelengthDataDirection>%s</WavelengthDataDirection>\n", |
117 |
+ |
bsdf_type[(input_orient>0)<<1 | (output_orient>0)]); |
118 |
+ |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
119 |
+ |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
120 |
+ |
puts("\t\t\t<ScatteringData>"); |
121 |
+ |
} |
122 |
+ |
|
123 |
+ |
/* Output XML data epilogue to stdout */ |
124 |
+ |
static void |
125 |
+ |
data_epilogue(void) |
126 |
+ |
{ |
127 |
+ |
puts("\t\t\t</ScatteringData>"); |
128 |
+ |
puts("\t\t</WavelengthDataBlock>"); |
129 |
+ |
puts("\t</WavelengthData>"); |
130 |
+ |
} |
131 |
+ |
|
132 |
+ |
/* Output XML epilogue to stdout */ |
133 |
+ |
static void |
134 |
+ |
xml_epilogue(void) |
135 |
+ |
{ |
136 |
+ |
puts("</Layer>"); |
137 |
+ |
puts("</Optical>"); |
138 |
+ |
puts("</WindowElement>"); |
139 |
+ |
} |
140 |
+ |
|
141 |
+ |
/* Compute absolute relative difference */ |
142 |
+ |
static double |
143 |
+ |
abs_diff(double v1, double v0) |
144 |
+ |
{ |
145 |
+ |
if ((v0 < 0) | (v1 < 0)) |
146 |
+ |
return(.0); |
147 |
+ |
v1 = (v1-v0)*2./(v0+v1+.0001); |
148 |
+ |
if (v1 < 0) |
149 |
+ |
return(-v1); |
150 |
+ |
return(v1); |
151 |
+ |
} |
152 |
+ |
|
153 |
|
/* Interpolate and output isotropic BSDF data */ |
154 |
|
static void |
155 |
< |
interp_isotropic() |
155 |
> |
eval_isotropic(char *funame) |
156 |
|
{ |
157 |
|
const int sqres = 1<<samp_order; |
158 |
|
FILE *ofp = NULL; |
159 |
+ |
int assignD = 0; |
160 |
|
char cmd[128]; |
161 |
|
int ix, ox, oy; |
162 |
< |
FVECT ivec, ovec; |
163 |
< |
double bsdf; |
164 |
< |
#if DEBUG |
165 |
< |
fprintf(stderr, "Writing isotropic order %d ", samp_order); |
166 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
167 |
< |
else fputs("raw data\n", stderr); |
37 |
< |
#endif |
38 |
< |
if (pctcull >= 0) { /* begin output */ |
39 |
< |
sprintf(cmd, "rttree_reduce -h -a -fd -r 3 -t %d -g %d", |
162 |
> |
double iovec[6]; |
163 |
> |
float bsdf; |
164 |
> |
|
165 |
> |
data_prologue(); /* begin output */ |
166 |
> |
if (pctcull >= 0) { |
167 |
> |
sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d", |
168 |
|
pctcull, samp_order); |
169 |
|
fflush(stdout); |
170 |
|
ofp = popen(cmd, "w"); |
174 |
|
exit(1); |
175 |
|
} |
176 |
|
SET_FILE_BINARY(ofp); |
177 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
178 |
+ |
flockfile(ofp); |
179 |
+ |
#endif |
180 |
|
} else |
181 |
|
fputs("{\n", stdout); |
182 |
+ |
/* need to assign Dx, Dy, Dz? */ |
183 |
+ |
if (funame != NULL) |
184 |
+ |
assignD = (fundefined(funame) < 6); |
185 |
|
/* run through directions */ |
186 |
|
for (ix = 0; ix < sqres/2; ix++) { |
187 |
< |
RBFNODE *rbf; |
188 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, .5); |
189 |
< |
ivec[2] = input_orient * |
190 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
191 |
< |
rbf = advect_rbf(ivec); |
192 |
< |
for (ox = 0; ox < sqres; ox++) |
187 |
> |
RBFNODE *rbf = NULL; |
188 |
> |
iovec[0] = 2.*(ix+.5)/sqres - 1.; |
189 |
> |
iovec[1] = .0; |
190 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
191 |
> |
if (funame == NULL) |
192 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
193 |
> |
for (ox = 0; ox < sqres; ox++) { |
194 |
> |
float last_bsdf = -1; |
195 |
|
for (oy = 0; oy < sqres; oy++) { |
196 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
197 |
< |
ovec[2] = output_orient * |
198 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
199 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
196 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
197 |
> |
iovec[5] = output_orient * |
198 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
199 |
> |
if (funame == NULL) |
200 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
201 |
> |
output_orient/iovec[5]; |
202 |
> |
else { |
203 |
> |
double ssa[3], ssvec[6], sum; |
204 |
> |
int ssi; |
205 |
> |
if (assignD) { |
206 |
> |
varset("Dx", '=', -iovec[3]); |
207 |
> |
varset("Dy", '=', -iovec[4]); |
208 |
> |
varset("Dz", '=', -iovec[5]); |
209 |
> |
++eclock; |
210 |
> |
} |
211 |
> |
bsdf = funvalue(funame, 6, iovec); |
212 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
213 |
> |
sum = 0; /* super-sample voxel */ |
214 |
> |
for (ssi = nssamp; ssi--; ) { |
215 |
> |
SDmultiSamp(ssa, 3, (ssi+frandom())/nssamp); |
216 |
> |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
217 |
> |
ssvec[1] = .0; |
218 |
> |
ssvec[2] = input_orient * |
219 |
> |
sqrt(1. - ssvec[0]*ssvec[0]); |
220 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
221 |
> |
(oy+ssa[2])/sqres); |
222 |
> |
ssvec[5] = output_orient * |
223 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
224 |
> |
ssvec[4]*ssvec[4]); |
225 |
> |
if (assignD) { |
226 |
> |
varset("Dx", '=', -iovec[3]); |
227 |
> |
varset("Dy", '=', -iovec[4]); |
228 |
> |
varset("Dz", '=', -iovec[5]); |
229 |
> |
++eclock; |
230 |
> |
} |
231 |
> |
sum += funvalue(funame, 6, ssvec); |
232 |
> |
} |
233 |
> |
bsdf = sum/nssamp; |
234 |
> |
} |
235 |
> |
} |
236 |
|
if (pctcull >= 0) |
237 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
238 |
|
else |
239 |
|
printf("\t%.3e\n", bsdf); |
240 |
+ |
last_bsdf = bsdf; |
241 |
|
} |
242 |
+ |
} |
243 |
|
if (rbf != NULL) |
244 |
|
free(rbf); |
245 |
+ |
prog_show((ix+1.)*(2./sqres)); |
246 |
|
} |
247 |
|
if (pctcull >= 0) { /* finish output */ |
248 |
|
if (pclose(ofp)) { |
255 |
|
fputs("\t0\n", stdout); |
256 |
|
fputs("}\n", stdout); |
257 |
|
} |
258 |
+ |
data_epilogue(); |
259 |
+ |
prog_done(); |
260 |
|
} |
261 |
|
|
262 |
|
/* Interpolate and output anisotropic BSDF data */ |
263 |
|
static void |
264 |
< |
interp_anisotropic() |
264 |
> |
eval_anisotropic(char *funame) |
265 |
|
{ |
266 |
|
const int sqres = 1<<samp_order; |
267 |
|
FILE *ofp = NULL; |
268 |
+ |
int assignD = 0; |
269 |
|
char cmd[128]; |
270 |
|
int ix, iy, ox, oy; |
271 |
< |
FVECT ivec, ovec; |
272 |
< |
double bsdf; |
273 |
< |
#if DEBUG |
274 |
< |
fprintf(stderr, "Writing anisotropic order %d ", samp_order); |
275 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %d%% culling\n", pctcull); |
276 |
< |
else fputs("raw data\n", stderr); |
277 |
< |
#endif |
100 |
< |
if (pctcull >= 0) { /* begin output */ |
101 |
< |
sprintf(cmd, "rttree_reduce -h -a -fd -r 4 -t %d -g %d", |
271 |
> |
double iovec[6]; |
272 |
> |
float bsdf; |
273 |
> |
|
274 |
> |
data_prologue(); /* begin output */ |
275 |
> |
if (pctcull >= 0) { |
276 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d", |
277 |
> |
(input_orient>0 ^ output_orient>0) ? "" : " -a", |
278 |
|
pctcull, samp_order); |
279 |
|
fflush(stdout); |
280 |
|
ofp = popen(cmd, "w"); |
283 |
|
progname); |
284 |
|
exit(1); |
285 |
|
} |
286 |
+ |
SET_FILE_BINARY(ofp); |
287 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
288 |
+ |
flockfile(ofp); |
289 |
+ |
#endif |
290 |
|
} else |
291 |
|
fputs("{\n", stdout); |
292 |
+ |
/* need to assign Dx, Dy, Dz? */ |
293 |
+ |
if (funame != NULL) |
294 |
+ |
assignD = (fundefined(funame) < 6); |
295 |
|
/* run through directions */ |
296 |
|
for (ix = 0; ix < sqres; ix++) |
297 |
|
for (iy = 0; iy < sqres; iy++) { |
298 |
< |
RBFNODE *rbf; |
299 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, (iy+.5)/sqres); |
300 |
< |
ivec[2] = input_orient * |
301 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
302 |
< |
rbf = advect_rbf(ivec); |
303 |
< |
for (ox = 0; ox < sqres; ox++) |
298 |
> |
RBFNODE *rbf = NULL; /* Klems reversal */ |
299 |
> |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
300 |
> |
iovec[2] = input_orient * |
301 |
> |
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
302 |
> |
if (funame == NULL) |
303 |
> |
rbf = advect_rbf(iovec, lobe_lim); |
304 |
> |
for (ox = 0; ox < sqres; ox++) { |
305 |
> |
float last_bsdf = -1; |
306 |
|
for (oy = 0; oy < sqres; oy++) { |
307 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
308 |
< |
ovec[2] = output_orient * |
309 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
310 |
< |
bsdf = eval_rbfrep(rbf, ovec) / fabs(ovec[2]); |
307 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
308 |
> |
iovec[5] = output_orient * |
309 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
310 |
> |
if (funame == NULL) |
311 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
312 |
> |
output_orient/iovec[5]; |
313 |
> |
else { |
314 |
> |
double ssa[4], ssvec[6], sum; |
315 |
> |
int ssi; |
316 |
> |
if (assignD) { |
317 |
> |
varset("Dx", '=', -iovec[3]); |
318 |
> |
varset("Dy", '=', -iovec[4]); |
319 |
> |
varset("Dz", '=', -iovec[5]); |
320 |
> |
++eclock; |
321 |
> |
} |
322 |
> |
bsdf = funvalue(funame, 6, iovec); |
323 |
> |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
324 |
> |
sum = 0; /* super-sample voxel */ |
325 |
> |
for (ssi = nssamp; ssi--; ) { |
326 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom())/nssamp); |
327 |
> |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
328 |
> |
1.-(iy+ssa[1])/sqres); |
329 |
> |
ssvec[2] = output_orient * |
330 |
> |
sqrt(1. - ssvec[0]*ssvec[0] - |
331 |
> |
ssvec[1]*ssvec[1]); |
332 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
333 |
> |
(oy+ssa[3])/sqres); |
334 |
> |
ssvec[5] = output_orient * |
335 |
> |
sqrt(1. - ssvec[3]*ssvec[3] - |
336 |
> |
ssvec[4]*ssvec[4]); |
337 |
> |
if (assignD) { |
338 |
> |
varset("Dx", '=', -iovec[3]); |
339 |
> |
varset("Dy", '=', -iovec[4]); |
340 |
> |
varset("Dz", '=', -iovec[5]); |
341 |
> |
++eclock; |
342 |
> |
} |
343 |
> |
sum += funvalue(funame, 6, ssvec); |
344 |
> |
} |
345 |
> |
bsdf = sum/nssamp; |
346 |
> |
} |
347 |
> |
} |
348 |
|
if (pctcull >= 0) |
349 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
350 |
|
else |
351 |
|
printf("\t%.3e\n", bsdf); |
352 |
+ |
last_bsdf = bsdf; |
353 |
|
} |
354 |
+ |
} |
355 |
|
if (rbf != NULL) |
356 |
|
free(rbf); |
357 |
+ |
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
358 |
|
} |
359 |
|
if (pctcull >= 0) { /* finish output */ |
360 |
|
if (pclose(ofp)) { |
364 |
|
} |
365 |
|
} else |
366 |
|
fputs("}\n", stdout); |
367 |
+ |
data_epilogue(); |
368 |
+ |
prog_done(); |
369 |
|
} |
370 |
|
|
371 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
372 |
|
int |
373 |
|
main(int argc, char *argv[]) |
374 |
|
{ |
375 |
< |
FILE *fpin = stdin; |
376 |
< |
int i; |
375 |
> |
int dofwd = 0, dobwd = 1; |
376 |
> |
int i, na; |
377 |
|
|
378 |
< |
progname = argv[0]; /* get options */ |
379 |
< |
while (argc > 2 && argv[1][0] == '-') { |
380 |
< |
switch (argv[1][1]) { |
378 |
> |
progname = argv[0]; |
379 |
> |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
380 |
> |
esupport &= ~(E_INCHAN|E_OUTCHAN); |
381 |
> |
scompile("PI:3.14159265358979323846", NULL, 0); |
382 |
> |
biggerlib(); |
383 |
> |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
384 |
> |
switch (argv[i][1]) { /* get options */ |
385 |
> |
case 'e': |
386 |
> |
scompile(argv[++i], NULL, 0); |
387 |
> |
break; |
388 |
> |
case 'f': |
389 |
> |
if (!argv[i][2]) |
390 |
> |
fcompile(argv[++i]); |
391 |
> |
else |
392 |
> |
dofwd = (argv[i][0] == '+'); |
393 |
> |
break; |
394 |
> |
case 'b': |
395 |
> |
dobwd = (argv[i][0] == '+'); |
396 |
> |
break; |
397 |
|
case 't': |
398 |
< |
pctcull = atoi(argv[2]); |
398 |
> |
switch (argv[i][2]) { |
399 |
> |
case '3': |
400 |
> |
single_plane_incident = 1; |
401 |
> |
break; |
402 |
> |
case '4': |
403 |
> |
single_plane_incident = 0; |
404 |
> |
break; |
405 |
> |
case '\0': |
406 |
> |
pctcull = atof(argv[++i]); |
407 |
> |
break; |
408 |
> |
default: |
409 |
> |
goto userr; |
410 |
> |
} |
411 |
|
break; |
412 |
|
case 'g': |
413 |
< |
samp_order = atoi(argv[2]); |
413 |
> |
samp_order = atoi(argv[++i]); |
414 |
|
break; |
415 |
+ |
case 'l': |
416 |
+ |
lobe_lim = atoi(argv[++i]); |
417 |
+ |
break; |
418 |
+ |
case 'p': |
419 |
+ |
do_prog = atoi(argv[i]+2); |
420 |
+ |
break; |
421 |
|
default: |
422 |
|
goto userr; |
423 |
|
} |
424 |
< |
argv += 2; argc -= 2; |
424 |
> |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
425 |
> |
void (*evf)(char *s) = single_plane_incident ? |
426 |
> |
&eval_isotropic : &eval_anisotropic; |
427 |
> |
if (i != argc-1 || fundefined(argv[i]) < 3) { |
428 |
> |
fprintf(stderr, |
429 |
> |
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
430 |
> |
progname); |
431 |
> |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n"); |
432 |
> |
goto userr; |
433 |
> |
} |
434 |
> |
++eclock; |
435 |
> |
xml_prologue(argc, argv); /* start XML output */ |
436 |
> |
if (dofwd) { |
437 |
> |
input_orient = -1; |
438 |
> |
output_orient = -1; |
439 |
> |
prog_start("Evaluating outside reflectance"); |
440 |
> |
(*evf)(argv[i]); |
441 |
> |
output_orient = 1; |
442 |
> |
prog_start("Evaluating outside->inside transmission"); |
443 |
> |
(*evf)(argv[i]); |
444 |
> |
} |
445 |
> |
if (dobwd) { |
446 |
> |
input_orient = 1; |
447 |
> |
output_orient = 1; |
448 |
> |
prog_start("Evaluating inside reflectance"); |
449 |
> |
(*evf)(argv[i]); |
450 |
> |
output_orient = -1; |
451 |
> |
prog_start("Evaluating inside->outside transmission"); |
452 |
> |
(*evf)(argv[i]); |
453 |
> |
} |
454 |
> |
xml_epilogue(); /* finish XML output & exit */ |
455 |
> |
return(0); |
456 |
|
} |
457 |
< |
if (argc == 2) { /* open input if given */ |
458 |
< |
fpin = fopen(argv[1], "r"); |
459 |
< |
if (fpin == NULL) { |
460 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
461 |
< |
progname, argv[1]); |
462 |
< |
return(1); |
457 |
> |
if (i < argc) { /* open input files if given */ |
458 |
> |
int nbsdf = 0; |
459 |
> |
for ( ; i < argc; i++) { /* interpolate each component */ |
460 |
> |
char pbuf[256]; |
461 |
> |
FILE *fpin = fopen(argv[i], "rb"); |
462 |
> |
if (fpin == NULL) { |
463 |
> |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
464 |
> |
progname, argv[i]); |
465 |
> |
return(1); |
466 |
> |
} |
467 |
> |
if (!load_bsdf_rep(fpin)) |
468 |
> |
return(1); |
469 |
> |
fclose(fpin); |
470 |
> |
if (!nbsdf++) /* start XML on first dist. */ |
471 |
> |
xml_prologue(argc, argv); |
472 |
> |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
473 |
> |
prog_start(pbuf); |
474 |
> |
if (single_plane_incident) |
475 |
> |
eval_isotropic(NULL); |
476 |
> |
else |
477 |
> |
eval_anisotropic(NULL); |
478 |
|
} |
479 |
< |
} else if (argc != 1) |
480 |
< |
goto userr; |
481 |
< |
SET_FILE_BINARY(fpin); /* load BSDF interpolant */ |
482 |
< |
if (!load_bsdf_rep(fpin)) |
479 |
> |
xml_epilogue(); /* finish XML output & exit */ |
480 |
> |
return(0); |
481 |
> |
} |
482 |
> |
SET_FILE_BINARY(stdin); /* load from stdin */ |
483 |
> |
if (!load_bsdf_rep(stdin)) |
484 |
|
return(1); |
485 |
< |
/* xml_prologue(); /* start XML output */ |
485 |
> |
xml_prologue(argc, argv); /* start XML output */ |
486 |
> |
prog_start("Interpolating from standard input"); |
487 |
|
if (single_plane_incident) /* resample dist. */ |
488 |
< |
interp_isotropic(); |
488 |
> |
eval_isotropic(NULL); |
489 |
|
else |
490 |
< |
interp_anisotropic(); |
491 |
< |
/* xml_epilogue(); /* finish XML output */ |
490 |
> |
eval_anisotropic(NULL); |
491 |
> |
xml_epilogue(); /* finish XML output & exit */ |
492 |
|
return(0); |
493 |
|
userr: |
494 |
|
fprintf(stderr, |
495 |
< |
"Usage: %s [-t pctcull][-g log2grid] [bsdf.sir] > bsdf.xml\n", |
495 |
> |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
496 |
> |
progname); |
497 |
> |
fprintf(stderr, |
498 |
> |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
499 |
|
progname); |
500 |
|
return(1); |
501 |
|
} |