3 |
|
#endif |
4 |
|
/* |
5 |
|
* Load measured BSDF data in PAB-Opto format. |
6 |
+ |
* Assumes that surface-normal (Z-axis) faces into room unless -t option given. |
7 |
|
* |
8 |
|
* G. Ward |
9 |
|
*/ |
10 |
|
|
11 |
|
#define _USE_MATH_DEFINES |
11 |
– |
#include <stdio.h> |
12 |
|
#include <stdlib.h> |
13 |
– |
#include <string.h> |
13 |
|
#include <ctype.h> |
14 |
|
#include <math.h> |
15 |
+ |
#include "rtio.h" |
16 |
|
#include "platform.h" |
17 |
|
#include "bsdfrep.h" |
18 |
– |
#include "resolu.h" |
18 |
|
/* global argv[0] */ |
19 |
|
char *progname; |
20 |
|
|
31 |
|
PGINPUT *inpfile; /* input files sorted by incidence */ |
32 |
|
int ninpfiles; /* number of input files */ |
33 |
|
|
34 |
+ |
int rev_orient = 0; /* shall we reverse surface orientation? */ |
35 |
+ |
|
36 |
|
/* Compare incident angles */ |
37 |
|
static int |
38 |
|
cmp_indir(const void *p1, const void *p2) |
115 |
|
fputs(": unknown incident angle\n", stderr); |
116 |
|
return(0); |
117 |
|
} |
118 |
+ |
if (rev_orient) { /* reverse Z-axis to face outside */ |
119 |
+ |
inpfile[i].theta = 180. - inpfile[i].theta; |
120 |
+ |
inpfile[i].phi = 360. - inpfile[i].phi; |
121 |
+ |
} |
122 |
|
/* convert to Y-up orientation */ |
123 |
|
inpfile[i].phi += 90.-inpfile[i].up_phi; |
124 |
|
/* convert angle to grid position */ |
126 |
|
dv[0] = cos(M_PI/180.*inpfile[i].phi)*dv[2]; |
127 |
|
dv[1] = sin(M_PI/180.*inpfile[i].phi)*dv[2]; |
128 |
|
dv[2] = sqrt(1. - dv[2]*dv[2]); |
129 |
< |
pos_from_vec(inpfile[i].igp, dv); |
129 |
> |
if (inpfile[i].theta <= FTINY) |
130 |
> |
inpfile[i].igp[0] = inpfile[i].igp[1] = grid_res/2 - 1; |
131 |
> |
else |
132 |
> |
pos_from_vec(inpfile[i].igp, dv); |
133 |
|
return(1); |
134 |
|
} |
135 |
|
|
170 |
|
fclose(fp); |
171 |
|
return(1); |
172 |
|
} |
173 |
+ |
if (rev_orient) { /* reverse Z-axis to face outside */ |
174 |
+ |
theta_out = 180. - theta_out; |
175 |
+ |
phi_out = 360. - phi_out; |
176 |
+ |
} |
177 |
|
add_bsdf_data(theta_out, phi_out+90.-inpfile[i].up_phi, |
178 |
|
val, inpfile[i].isDSF); |
179 |
|
} |
189 |
|
} |
190 |
|
|
191 |
|
#ifndef TEST_MAIN |
192 |
+ |
|
193 |
+ |
#define SYM_ILL '?' /* illegal symmetry value */ |
194 |
+ |
#define SYM_ISO 'I' /* isotropic */ |
195 |
+ |
#define SYM_QUAD 'Q' /* quadrilateral symmetry */ |
196 |
+ |
#define SYM_BILAT 'B' /* bilateral symmetry */ |
197 |
+ |
#define SYM_ANISO 'A' /* anisotropic */ |
198 |
+ |
|
199 |
+ |
static const char quadrant_rep[16][16] = { |
200 |
+ |
"in-plane","0-90","90-180","0-180", |
201 |
+ |
"180-270","0-90+180-270","90-270", |
202 |
+ |
"0-270","270-360","270-90", |
203 |
+ |
"90-180+270-360","270-180","180-360", |
204 |
+ |
"180-90","90-360","0-360" |
205 |
+ |
}; |
206 |
+ |
static const char quadrant_sym[16] = { |
207 |
+ |
SYM_ISO, SYM_QUAD, SYM_QUAD, SYM_BILAT, |
208 |
+ |
SYM_QUAD, SYM_ILL, SYM_BILAT, SYM_ILL, |
209 |
+ |
SYM_QUAD, SYM_BILAT, SYM_ILL, SYM_ILL, |
210 |
+ |
SYM_BILAT, SYM_ILL, SYM_ILL, SYM_ANISO |
211 |
+ |
}; |
212 |
+ |
|
213 |
|
/* Read in PAB-Opto BSDF files and output RBF interpolant */ |
214 |
|
int |
215 |
|
main(int argc, char *argv[]) |
216 |
|
{ |
217 |
|
extern int nprocs; |
218 |
+ |
const char *symmetry = "U"; |
219 |
|
int i; |
220 |
|
/* start header */ |
221 |
|
SET_FILE_BINARY(stdout); |
225 |
|
progname = argv[0]; /* get options */ |
226 |
|
while (argc > 2 && argv[1][0] == '-') { |
227 |
|
switch (argv[1][1]) { |
228 |
+ |
case 't': |
229 |
+ |
rev_orient = !rev_orient; |
230 |
+ |
break; |
231 |
|
case 'n': |
232 |
|
nprocs = atoi(argv[2]); |
233 |
+ |
argv++; argc--; |
234 |
|
break; |
235 |
+ |
case 's': |
236 |
+ |
symmetry = argv[2]; |
237 |
+ |
argv++; argc--; |
238 |
+ |
break; |
239 |
|
default: |
240 |
|
goto userr; |
241 |
|
} |
242 |
< |
argv += 2; argc -= 2; |
242 |
> |
argv++; argc--; |
243 |
|
} |
244 |
|
/* initialize & sort inputs */ |
245 |
|
ninpfiles = argc - 1; |
257 |
|
if (!add_pabopto_inp(i)) |
258 |
|
return(1); |
259 |
|
make_rbfrep(); /* process last data set */ |
260 |
+ |
/* check input symmetry */ |
261 |
+ |
switch (toupper(symmetry[0])) { |
262 |
+ |
case 'U': /* unspecified symmetry */ |
263 |
+ |
if (quadrant_sym[inp_coverage] != SYM_ILL) |
264 |
+ |
break; /* anything legal goes */ |
265 |
+ |
fprintf(stderr, "%s: unsupported phi coverage (%s)\n", |
266 |
+ |
progname, quadrant_rep[inp_coverage]); |
267 |
+ |
return(1); |
268 |
+ |
case SYM_ISO: /* legal symmetry types */ |
269 |
+ |
case SYM_QUAD: |
270 |
+ |
case SYM_BILAT: |
271 |
+ |
case SYM_ANISO: |
272 |
+ |
if (quadrant_sym[inp_coverage] == toupper(symmetry[0])) |
273 |
+ |
break; /* matches spec */ |
274 |
+ |
fprintf(stderr, |
275 |
+ |
"%s: phi coverage (%s) does not match requested '%s' symmetry\n", |
276 |
+ |
progname, quadrant_rep[inp_coverage], symmetry); |
277 |
+ |
return(1); |
278 |
+ |
default: |
279 |
+ |
fprintf(stderr, |
280 |
+ |
"%s: -s option must be Isotropic, Quadrilateral, Bilateral, or Anisotropic\n", |
281 |
+ |
progname); |
282 |
+ |
return(1); |
283 |
+ |
} |
284 |
+ |
#ifdef DEBUG |
285 |
+ |
fprintf(stderr, "Input phi coverage (%s) has '%c' symmetry\n", |
286 |
+ |
quadrant_rep[inp_coverage], |
287 |
+ |
quadrant_sym[inp_coverage]); |
288 |
+ |
#endif |
289 |
|
build_mesh(); /* create interpolation */ |
290 |
|
save_bsdf_rep(stdout); /* write it out */ |
291 |
|
return(0); |
292 |
|
userr: |
293 |
< |
fprintf(stderr, "Usage: %s [-n nproc] meas1.dat meas2.dat .. > bsdf.sir\n", |
293 |
> |
fprintf(stderr, "Usage: %s [-t][-n nproc][-s symmetry] meas1.dat meas2.dat .. > bsdf.sir\n", |
294 |
|
progname); |
295 |
|
return(1); |
296 |
|
} |
297 |
< |
#else |
297 |
> |
|
298 |
> |
#else /* TEST_MAIN */ |
299 |
> |
|
300 |
|
/* Test main produces a Radiance model from the given input file */ |
301 |
|
int |
302 |
|
main(int argc, char *argv[]) |
380 |
|
#endif |
381 |
|
return(0); |
382 |
|
} |
383 |
< |
#endif |
383 |
> |
|
384 |
> |
#endif /* TEST_MAIN */ |