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; |
21 |
|
/* sampling order */ |
22 |
|
int samp_order = 6; |
23 |
|
|
24 |
+ |
/* Output XML prologue to stdout */ |
25 |
+ |
static void |
26 |
+ |
xml_prologue(int ac, char *av[]) |
27 |
+ |
{ |
28 |
+ |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
29 |
+ |
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\">"); |
30 |
+ |
fputs("<!-- File produced by:", stdout); |
31 |
+ |
while (ac-- > 0) { |
32 |
+ |
fputc(' ', stdout); |
33 |
+ |
fputs(*av++, stdout); |
34 |
+ |
} |
35 |
+ |
puts(" -->"); |
36 |
+ |
puts("<WindowElementType>System</WindowElementType>"); |
37 |
+ |
puts("<FileType>BSDF</FileType>"); |
38 |
+ |
puts("<Optical>"); |
39 |
+ |
puts("<Layer>"); |
40 |
+ |
puts("\t<Material>"); |
41 |
+ |
puts("\t\t<Name>Name</Name>"); |
42 |
+ |
puts("\t\t<Manufacturer>Manufacturer</Manufacturer>"); |
43 |
+ |
puts("\t\t<DeviceType>Other</DeviceType>"); |
44 |
+ |
puts("\t</Material>"); |
45 |
+ |
puts("\t<DataDefinition>"); |
46 |
+ |
printf("\t\t<IncidentDataStructure>TensorTree%c</IncidentDataStructure>\n", |
47 |
+ |
single_plane_incident ? '3' : '4'); |
48 |
+ |
puts("\t</DataDefinition>"); |
49 |
+ |
} |
50 |
+ |
|
51 |
+ |
/* Output XML data prologue to stdout */ |
52 |
+ |
static void |
53 |
+ |
data_prologue() |
54 |
+ |
{ |
55 |
+ |
static const char *bsdf_type[4] = { |
56 |
+ |
"Reflection Front", |
57 |
+ |
"Transmission Front", |
58 |
+ |
"Transmission Back", |
59 |
+ |
"Reflection Back" |
60 |
+ |
}; |
61 |
+ |
|
62 |
+ |
puts("\t<WavelengthData>"); |
63 |
+ |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
64 |
+ |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
65 |
+ |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
66 |
+ |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
67 |
+ |
puts("\t\t<WavelengthDataBlock>"); |
68 |
+ |
printf("\t\t\t<WavelengthDataDirection>%s</WavelengthDataDirection>\n", |
69 |
+ |
bsdf_type[(input_orient>0)<<1 | (output_orient>0)]); |
70 |
+ |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
71 |
+ |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
72 |
+ |
puts("\t\t\t<ScatteringData>"); |
73 |
+ |
} |
74 |
+ |
|
75 |
+ |
/* Output XML data epilogue to stdout */ |
76 |
+ |
static void |
77 |
+ |
data_epilogue(void) |
78 |
+ |
{ |
79 |
+ |
puts("\t\t\t</ScatteringData>"); |
80 |
+ |
puts("\t\t</WavelengthDataBlock>"); |
81 |
+ |
puts("\t</WavelengthData>"); |
82 |
+ |
} |
83 |
+ |
|
84 |
+ |
/* Output XML epilogue to stdout */ |
85 |
+ |
static void |
86 |
+ |
xml_epilogue(void) |
87 |
+ |
{ |
88 |
+ |
puts("</Layer>"); |
89 |
+ |
puts("</Optical>"); |
90 |
+ |
puts("</WindowElement>"); |
91 |
+ |
} |
92 |
+ |
|
93 |
|
/* Interpolate and output isotropic BSDF data */ |
94 |
|
static void |
95 |
< |
interp_isotropic() |
95 |
> |
eval_isotropic(char *funame) |
96 |
|
{ |
97 |
|
const int sqres = 1<<samp_order; |
98 |
|
FILE *ofp = NULL; |
99 |
|
char cmd[128]; |
100 |
|
int ix, ox, oy; |
101 |
< |
FVECT ivec, ovec; |
101 |
> |
double iovec[6]; |
102 |
|
float bsdf; |
103 |
|
#if DEBUG |
104 |
|
fprintf(stderr, "Writing isotropic order %d ", samp_order); |
105 |
|
if (pctcull >= 0) fprintf(stderr, "data with %.1f%% culling\n", pctcull); |
106 |
|
else fputs("raw data\n", stderr); |
107 |
|
#endif |
108 |
< |
if (pctcull >= 0) { /* begin output */ |
108 |
> |
data_prologue(); /* begin output */ |
109 |
> |
if (pctcull >= 0) { |
110 |
|
sprintf(cmd, "rttree_reduce -h -a -ff -r 3 -t %f -g %d", |
111 |
|
pctcull, samp_order); |
112 |
|
fflush(stdout); |
121 |
|
fputs("{\n", stdout); |
122 |
|
/* run through directions */ |
123 |
|
for (ix = 0; ix < sqres/2; ix++) { |
124 |
< |
RBFNODE *rbf; |
125 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, .5); |
126 |
< |
ivec[2] = input_orient * |
127 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
128 |
< |
rbf = advect_rbf(ivec); |
124 |
> |
RBFNODE *rbf = NULL; |
125 |
> |
iovec[0] = (ix+.5)/sqres - 1.; |
126 |
> |
iovec[1] = .0; |
127 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
128 |
> |
if (funame == NULL) |
129 |
> |
rbf = advect_rbf(iovec); |
130 |
|
for (ox = 0; ox < sqres; ox++) |
131 |
|
for (oy = 0; oy < sqres; oy++) { |
132 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
133 |
< |
ovec[2] = output_orient * |
134 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
135 |
< |
bsdf = eval_rbfrep(rbf, ovec) * output_orient/ovec[2]; |
132 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
133 |
> |
iovec[5] = output_orient * |
134 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
135 |
> |
if (funame == NULL) |
136 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
137 |
> |
output_orient/iovec[5]; |
138 |
> |
else |
139 |
> |
bsdf = funvalue(funame, 6, iovec); |
140 |
|
if (pctcull >= 0) |
141 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
142 |
|
else |
156 |
|
fputs("\t0\n", stdout); |
157 |
|
fputs("}\n", stdout); |
158 |
|
} |
159 |
+ |
data_epilogue(); |
160 |
|
} |
161 |
|
|
162 |
|
/* Interpolate and output anisotropic BSDF data */ |
163 |
|
static void |
164 |
< |
interp_anisotropic() |
164 |
> |
eval_anisotropic(char *funame) |
165 |
|
{ |
166 |
|
const int sqres = 1<<samp_order; |
167 |
|
FILE *ofp = NULL; |
168 |
|
char cmd[128]; |
169 |
|
int ix, iy, ox, oy; |
170 |
< |
FVECT ivec, ovec; |
170 |
> |
double iovec[6]; |
171 |
|
float bsdf; |
172 |
|
#if DEBUG |
173 |
|
fprintf(stderr, "Writing anisotropic order %d ", samp_order); |
174 |
|
if (pctcull >= 0) fprintf(stderr, "data with %.1f%% culling\n", pctcull); |
175 |
|
else fputs("raw data\n", stderr); |
176 |
|
#endif |
177 |
< |
if (pctcull >= 0) { /* begin output */ |
177 |
> |
data_prologue(); /* begin output */ |
178 |
> |
if (pctcull >= 0) { |
179 |
|
sprintf(cmd, "rttree_reduce -h -a -ff -r 4 -t %f -g %d", |
180 |
|
pctcull, samp_order); |
181 |
|
fflush(stdout); |
190 |
|
/* run through directions */ |
191 |
|
for (ix = 0; ix < sqres; ix++) |
192 |
|
for (iy = 0; iy < sqres; iy++) { |
193 |
< |
RBFNODE *rbf; /* Klems reversal */ |
194 |
< |
SDsquare2disk(ivec, (ix+.5)/sqres, (iy+.5)/sqres); |
195 |
< |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; |
196 |
< |
ivec[2] = input_orient * |
197 |
< |
sqrt(1. - ivec[0]*ivec[0] - ivec[1]*ivec[1]); |
198 |
< |
rbf = advect_rbf(ivec); |
193 |
> |
RBFNODE *rbf = NULL; /* Klems reversal */ |
194 |
> |
SDsquare2disk(iovec, (ix+.5)/sqres, (iy+.5)/sqres); |
195 |
> |
iovec[0] = -iovec[0]; iovec[1] = -iovec[1]; |
196 |
> |
iovec[2] = input_orient * |
197 |
> |
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
198 |
> |
if (funame == NULL) |
199 |
> |
rbf = advect_rbf(iovec); |
200 |
|
for (ox = 0; ox < sqres; ox++) |
201 |
|
for (oy = 0; oy < sqres; oy++) { |
202 |
< |
SDsquare2disk(ovec, (ox+.5)/sqres, (oy+.5)/sqres); |
203 |
< |
ovec[2] = output_orient * |
204 |
< |
sqrt(1. - ovec[0]*ovec[0] - ovec[1]*ovec[1]); |
205 |
< |
bsdf = eval_rbfrep(rbf, ovec) * output_orient/ovec[2]; |
202 |
> |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
203 |
> |
iovec[5] = output_orient * |
204 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
205 |
> |
if (funame == NULL) |
206 |
> |
bsdf = eval_rbfrep(rbf, iovec+3) * |
207 |
> |
output_orient/iovec[5]; |
208 |
> |
else |
209 |
> |
bsdf = funvalue(funame, 6, iovec); |
210 |
|
if (pctcull >= 0) |
211 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
212 |
|
else |
223 |
|
} |
224 |
|
} else |
225 |
|
fputs("}\n", stdout); |
226 |
+ |
data_epilogue(); |
227 |
|
} |
228 |
|
|
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 |
– |
|
229 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
230 |
|
int |
231 |
|
main(int argc, char *argv[]) |
232 |
|
{ |
233 |
< |
FILE *fpin = stdin; |
234 |
< |
int i; |
233 |
> |
int dofwd = 0, dobwd = 1; |
234 |
> |
int i, na; |
235 |
|
|
236 |
|
progname = argv[0]; |
237 |
< |
for (i = 1; i < argc-1 && argv[i][0] == '-'; i++) |
238 |
< |
switch (argv[i][1]) { /* get option */ |
237 |
> |
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
238 |
> |
esupport &= ~(E_INCHAN|E_OUTCHAN); |
239 |
> |
scompile("PI:3.14159265358979323846", NULL, 0); |
240 |
> |
biggerlib(); |
241 |
> |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
242 |
> |
switch (argv[i][1]) { /* get options */ |
243 |
> |
case 'e': |
244 |
> |
scompile(argv[++i], NULL, 0); |
245 |
> |
break; |
246 |
> |
case 'f': |
247 |
> |
if (!argv[i][2]) |
248 |
> |
fcompile(argv[++i]); |
249 |
> |
else |
250 |
> |
dofwd = (argv[i][0] == '+'); |
251 |
> |
break; |
252 |
> |
case 'b': |
253 |
> |
dobwd = (argv[i][0] == '+'); |
254 |
> |
break; |
255 |
|
case 't': |
256 |
< |
pctcull = atof(argv[++i]); |
256 |
> |
switch (argv[i][2]) { |
257 |
> |
case '3': |
258 |
> |
single_plane_incident = 0; |
259 |
> |
break; |
260 |
> |
case '4': |
261 |
> |
single_plane_incident = 1; |
262 |
> |
break; |
263 |
> |
case '\0': |
264 |
> |
pctcull = atof(argv[++i]); |
265 |
> |
break; |
266 |
> |
default: |
267 |
> |
goto userr; |
268 |
> |
} |
269 |
|
break; |
270 |
|
case 'g': |
271 |
|
samp_order = atoi(argv[++i]); |
273 |
|
default: |
274 |
|
goto userr; |
275 |
|
} |
276 |
< |
|
277 |
< |
if (i == argc-1) { /* open input if given */ |
278 |
< |
fpin = fopen(argv[i], "r"); |
279 |
< |
if (fpin == NULL) { |
280 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
281 |
< |
progname, argv[1]); |
282 |
< |
return(1); |
276 |
> |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
277 |
> |
void (*evf)(char *s) = single_plane_incident ? |
278 |
> |
&eval_isotropic : &eval_anisotropic; |
279 |
> |
if (i != argc-1 || fundefined(argv[i]) != 6) { |
280 |
> |
fprintf(stderr, |
281 |
> |
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
282 |
> |
progname); |
283 |
> |
goto userr; |
284 |
|
} |
285 |
< |
} else if (i < argc-1) |
286 |
< |
goto userr; |
287 |
< |
SET_FILE_BINARY(fpin); /* load BSDF interpolant */ |
288 |
< |
if (!load_bsdf_rep(fpin)) |
285 |
> |
xml_prologue(argc, argv); /* start XML output */ |
286 |
> |
if (dofwd) { |
287 |
> |
input_orient = -1; |
288 |
> |
output_orient = -1; |
289 |
> |
(*evf)(argv[i]); /* outside reflectance */ |
290 |
> |
output_orient = 1; |
291 |
> |
(*evf)(argv[i]); /* outside -> inside */ |
292 |
> |
} |
293 |
> |
if (dobwd) { |
294 |
> |
input_orient = 1; |
295 |
> |
output_orient = 1; |
296 |
> |
(*evf)(argv[i]); /* inside reflectance */ |
297 |
> |
output_orient = -1; |
298 |
> |
(*evf)(argv[i]); /* inside -> outside */ |
299 |
> |
} |
300 |
> |
xml_epilogue(); /* finish XML output & exit */ |
301 |
> |
return(0); |
302 |
> |
} |
303 |
> |
if (i < argc) { /* open input files if given */ |
304 |
> |
int nbsdf = 0; |
305 |
> |
for ( ; i < argc; i++) { /* interpolate each component */ |
306 |
> |
FILE *fpin = fopen(argv[i], "rb"); |
307 |
> |
if (fpin == NULL) { |
308 |
> |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
309 |
> |
progname, argv[i]); |
310 |
> |
return(1); |
311 |
> |
} |
312 |
> |
if (!load_bsdf_rep(fpin)) |
313 |
> |
return(1); |
314 |
> |
fclose(fpin); |
315 |
> |
if (!nbsdf++) /* start XML on first dist. */ |
316 |
> |
xml_prologue(argc, argv); |
317 |
> |
if (single_plane_incident) |
318 |
> |
eval_isotropic(NULL); |
319 |
> |
else |
320 |
> |
eval_anisotropic(NULL); |
321 |
> |
} |
322 |
> |
xml_epilogue(); /* finish XML output & exit */ |
323 |
> |
return(0); |
324 |
> |
} |
325 |
> |
SET_FILE_BINARY(stdin); /* load from stdin */ |
326 |
> |
if (!load_bsdf_rep(stdin)) |
327 |
|
return(1); |
234 |
– |
fclose(fpin); |
328 |
|
xml_prologue(argc, argv); /* start XML output */ |
329 |
|
if (single_plane_incident) /* resample dist. */ |
330 |
< |
interp_isotropic(); |
330 |
> |
eval_isotropic(NULL); |
331 |
|
else |
332 |
< |
interp_anisotropic(); |
333 |
< |
xml_epilogue(); /* finish XML output */ |
332 |
> |
eval_anisotropic(NULL); |
333 |
> |
xml_epilogue(); /* finish XML output & exit */ |
334 |
|
return(0); |
335 |
|
userr: |
336 |
|
fprintf(stderr, |
337 |
< |
"Usage: %s [-t pctcull][-g log2grid] [bsdf.sir] > bsdf.xml\n", |
337 |
> |
"Usage: %s [-g Nlog2][-t pctcull] [bsdf.sir ..] > bsdf.xml\n", |
338 |
> |
progname); |
339 |
> |
fprintf(stderr, |
340 |
> |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
341 |
|
progname); |
342 |
|
return(1); |
343 |
|
} |