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; |
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; |
120 |
> |
double iovec[6]; |
121 |
|
float bsdf; |
122 |
< |
#if DEBUG |
123 |
< |
fprintf(stderr, "Writing isotropic order %d ", samp_order); |
124 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %.1f%% 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 -ff -r 3 -t %f -g %d", |
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) * output_orient/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; |
225 |
> |
double iovec[6]; |
226 |
|
float bsdf; |
227 |
< |
#if DEBUG |
228 |
< |
fprintf(stderr, "Writing anisotropic order %d ", samp_order); |
229 |
< |
if (pctcull >= 0) fprintf(stderr, "data with %.1f%% 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 -ff -r 4 -t %f -g %d", |
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; /* Klems reversal */ |
249 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, (iy+.5)/sqres); |
250 |
< |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; |
251 |
< |
ivec[2] = input_orient * |
252 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
253 |
< |
rbf = advect_rbf(ivec); |
254 |
< |
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) * output_orient/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 |
|
|
145 |
– |
/* Output XML prologue to stdout */ |
146 |
– |
static void |
147 |
– |
xml_prologue(int ac, char *av[]) |
148 |
– |
{ |
149 |
– |
static const char *bsdf_type[4] = { |
150 |
– |
"Reflection Front", |
151 |
– |
"Transmission Front", |
152 |
– |
"Transmission Back", |
153 |
– |
"Reflection Back" |
154 |
– |
}; |
155 |
– |
|
156 |
– |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
157 |
– |
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\">"); |
158 |
– |
fputs("<!-- File produced by:", stdout); |
159 |
– |
while (ac-- > 0) { |
160 |
– |
fputc(' ', stdout); |
161 |
– |
fputs(*av++, stdout); |
162 |
– |
} |
163 |
– |
puts(" -->"); |
164 |
– |
puts("<WindowElementType>System</WindowElementType>"); |
165 |
– |
puts("<FileType>BSDF</FileType>"); |
166 |
– |
puts("<Optical>"); |
167 |
– |
puts("<Layer>"); |
168 |
– |
puts("\t<Material>"); |
169 |
– |
puts("\t\t<Name>Name</Name>"); |
170 |
– |
puts("\t\t<Manufacturer>Manufacturer</Manufacturer>"); |
171 |
– |
puts("\t\t<DeviceType>Other</DeviceType>"); |
172 |
– |
puts("\t</Material>"); |
173 |
– |
puts("\t<DataDefinition>"); |
174 |
– |
printf("\t\t<IncidentDataStructure>TensorTree%c</IncidentDataStructure>\n", |
175 |
– |
single_plane_incident ? '3' : '4'); |
176 |
– |
puts("\t</DataDefinition>"); |
177 |
– |
puts("\t<WavelengthData>"); |
178 |
– |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
179 |
– |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
180 |
– |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
181 |
– |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
182 |
– |
puts("\t\t<WavelengthDataBlock>"); |
183 |
– |
printf("\t\t\t<WavelengthDataDirection>%s</WavelengthDataDirection>\n", |
184 |
– |
bsdf_type[(input_orient>0)<<1 | (output_orient>0)]); |
185 |
– |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
186 |
– |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
187 |
– |
puts("\t\t\t<ScatteringData>"); |
188 |
– |
} |
189 |
– |
|
190 |
– |
/* Output XML epilogue to stdout */ |
191 |
– |
static void |
192 |
– |
xml_epilogue(void) |
193 |
– |
{ |
194 |
– |
puts("\t\t\t</ScatteringData>"); |
195 |
– |
puts("\t\t</WavelengthDataBlock>"); |
196 |
– |
puts("\t</WavelengthData>"); |
197 |
– |
puts("</Layer>"); |
198 |
– |
puts("</Optical>"); |
199 |
– |
puts("</WindowElement>"); |
200 |
– |
} |
201 |
– |
|
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]; |
327 |
< |
for (i = 1; i < argc-1 && argv[i][0] == '-'; i++) |
328 |
< |
switch (argv[i][1]) { /* get option */ |
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 = atof(argv[++i]); |
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[++i]); |
362 |
|
break; |
363 |
+ |
case 'l': |
364 |
+ |
lobe_lim = atoi(argv[++i]); |
365 |
+ |
break; |
366 |
|
default: |
367 |
|
goto userr; |
368 |
|
} |
369 |
< |
|
370 |
< |
if (i == argc-1) { /* open input if given */ |
371 |
< |
fpin = fopen(argv[i], "r"); |
372 |
< |
if (fpin == NULL) { |
373 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
374 |
< |
progname, argv[1]); |
375 |
< |
return(1); |
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 |
< |
} else if (i < argc-1) |
381 |
< |
goto userr; |
382 |
< |
SET_FILE_BINARY(fpin); /* load BSDF interpolant */ |
383 |
< |
if (!load_bsdf_rep(fpin)) |
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 (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 |
> |
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); |
234 |
– |
fclose(fpin); |
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 |
|
} |