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 |
|
*/ |
33 |
|
PGINPUT *inpfile; /* input files sorted by incidence */ |
34 |
|
int ninpfiles; /* number of input files */ |
35 |
|
|
36 |
+ |
int rev_orient = 0; /* shall we reverse surface orientation? */ |
37 |
+ |
|
38 |
|
/* Compare incident angles */ |
39 |
|
static int |
40 |
|
cmp_indir(const void *p1, const void *p2) |
117 |
|
fputs(": unknown incident angle\n", stderr); |
118 |
|
return(0); |
119 |
|
} |
120 |
+ |
if (rev_orient) { /* reverse Z-axis to face outside */ |
121 |
+ |
inpfile[i].theta = 180. - inpfile[i].theta; |
122 |
+ |
inpfile[i].phi = 360. - inpfile[i].phi; |
123 |
+ |
} |
124 |
|
/* convert to Y-up orientation */ |
125 |
|
inpfile[i].phi += 90.-inpfile[i].up_phi; |
126 |
|
/* convert angle to grid position */ |
128 |
|
dv[0] = cos(M_PI/180.*inpfile[i].phi)*dv[2]; |
129 |
|
dv[1] = sin(M_PI/180.*inpfile[i].phi)*dv[2]; |
130 |
|
dv[2] = sqrt(1. - dv[2]*dv[2]); |
131 |
< |
pos_from_vec(inpfile[i].igp, dv); |
131 |
> |
if (inpfile[i].theta <= FTINY) |
132 |
> |
inpfile[i].igp[0] = inpfile[i].igp[1] = grid_res/2 - 1; |
133 |
> |
else |
134 |
> |
pos_from_vec(inpfile[i].igp, dv); |
135 |
|
return(1); |
136 |
|
} |
137 |
|
|
172 |
|
fclose(fp); |
173 |
|
return(1); |
174 |
|
} |
175 |
+ |
if (rev_orient) { /* reverse Z-axis to face outside */ |
176 |
+ |
theta_out = 180. - theta_out; |
177 |
+ |
phi_out = 360. - phi_out; |
178 |
+ |
} |
179 |
|
add_bsdf_data(theta_out, phi_out+90.-inpfile[i].up_phi, |
180 |
|
val, inpfile[i].isDSF); |
181 |
|
} |
195 |
|
int |
196 |
|
main(int argc, char *argv[]) |
197 |
|
{ |
198 |
< |
extern int nprocs; |
199 |
< |
int i; |
198 |
> |
extern int nprocs; |
199 |
> |
static const char quadrant_rep[16][16] = { |
200 |
> |
"iso","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 |
> |
"0-90+180-360","90-360","0-360" |
205 |
> |
}; |
206 |
> |
const char * symmetry = "Unknown"; |
207 |
> |
int i; |
208 |
|
/* start header */ |
209 |
|
SET_FILE_BINARY(stdout); |
210 |
|
newheader("RADIANCE", stdout); |
213 |
|
progname = argv[0]; /* get options */ |
214 |
|
while (argc > 2 && argv[1][0] == '-') { |
215 |
|
switch (argv[1][1]) { |
216 |
+ |
case 't': |
217 |
+ |
rev_orient = !rev_orient; |
218 |
+ |
break; |
219 |
|
case 'n': |
220 |
|
nprocs = atoi(argv[2]); |
221 |
+ |
argv++; argc--; |
222 |
|
break; |
223 |
+ |
case 's': |
224 |
+ |
symmetry = argv[2]; |
225 |
+ |
argv++; argc--; |
226 |
+ |
break; |
227 |
|
default: |
228 |
|
goto userr; |
229 |
|
} |
230 |
< |
argv += 2; argc -= 2; |
230 |
> |
argv++; argc--; |
231 |
|
} |
232 |
|
/* initialize & sort inputs */ |
233 |
|
ninpfiles = argc - 1; |
245 |
|
if (!add_pabopto_inp(i)) |
246 |
|
return(1); |
247 |
|
make_rbfrep(); /* process last data set */ |
248 |
+ |
/* check input symmetry */ |
249 |
+ |
switch (toupper(symmetry[0])) { |
250 |
+ |
case 'U': /* unknown symmetry */ |
251 |
+ |
if ((inp_coverage == (INP_QUAD1|INP_QUAD3)) | |
252 |
+ |
(inp_coverage == (INP_QUAD2|INP_QUAD4)) | |
253 |
+ |
(inp_coverage == (INP_QUAD1|INP_QUAD2|INP_QUAD3)) | |
254 |
+ |
(inp_coverage == (INP_QUAD2|INP_QUAD3|INP_QUAD4)) | |
255 |
+ |
(inp_coverage == (INP_QUAD4|INP_QUAD1|INP_QUAD2)) | |
256 |
+ |
(inp_coverage == (INP_QUAD1|INP_QUAD3|INP_QUAD4))) { |
257 |
+ |
fprintf(stderr, "%s: unsupported phi coverage (%s)\n", |
258 |
+ |
progname, quadrant_rep[inp_coverage]); |
259 |
+ |
return(1); |
260 |
+ |
} |
261 |
+ |
break; |
262 |
+ |
case 'I': /* isotropic */ |
263 |
+ |
if (inp_coverage) |
264 |
+ |
goto badsymmetry; |
265 |
+ |
break; |
266 |
+ |
case 'Q': /* quadrilateral symmetry */ |
267 |
+ |
if ((inp_coverage != INP_QUAD1) & |
268 |
+ |
(inp_coverage != INP_QUAD2) & |
269 |
+ |
(inp_coverage != INP_QUAD3) & |
270 |
+ |
(inp_coverage != INP_QUAD4)) |
271 |
+ |
goto badsymmetry; |
272 |
+ |
break; |
273 |
+ |
case 'B': /* bilateral symmetry */ |
274 |
+ |
if ((inp_coverage != (INP_QUAD1|INP_QUAD2)) & |
275 |
+ |
(inp_coverage != (INP_QUAD2|INP_QUAD3)) & |
276 |
+ |
(inp_coverage != (INP_QUAD3|INP_QUAD4)) & |
277 |
+ |
(inp_coverage != (INP_QUAD4|INP_QUAD1))) |
278 |
+ |
goto badsymmetry; |
279 |
+ |
break; |
280 |
+ |
case 'A': /* anisotropic */ |
281 |
+ |
if (inp_coverage != (INP_QUAD1|INP_QUAD2|INP_QUAD3|INP_QUAD4)) |
282 |
+ |
goto badsymmetry; |
283 |
+ |
break; |
284 |
+ |
default: |
285 |
+ |
fprintf(stderr, |
286 |
+ |
"%s: -s option must be Isotropic, Quadrilateral, Bilateral, or Anisotropic\n", |
287 |
+ |
progname); |
288 |
+ |
return(1); |
289 |
+ |
} |
290 |
+ |
#ifdef DEBUG |
291 |
+ |
fprintf(stderr, "Input phi coverage: %s\n", quadrant_rep[inp_coverage]); |
292 |
+ |
#endif |
293 |
|
build_mesh(); /* create interpolation */ |
294 |
|
save_bsdf_rep(stdout); /* write it out */ |
295 |
|
return(0); |
296 |
+ |
badsymmetry: |
297 |
+ |
fprintf(stderr, "%s: phi coverage (%s) does not match requested '%s' symmetry\n", |
298 |
+ |
progname, quadrant_rep[inp_coverage], symmetry); |
299 |
|
userr: |
300 |
< |
fprintf(stderr, "Usage: %s [-n nproc] meas1.dat meas2.dat .. > bsdf.sir\n", |
300 |
> |
fprintf(stderr, "Usage: %s [-t][-n nproc][-s symmetry] meas1.dat meas2.dat .. > bsdf.sir\n", |
301 |
|
progname); |
302 |
|
return(1); |
303 |
|
} |