2 |
|
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
4 |
|
/* |
5 |
< |
* Plot 3-D BSDF output based on scattering interpolant representation |
5 |
> |
* Plot 3-D BSDF output based on scattering interpolant or XML representation |
6 |
|
*/ |
7 |
|
|
8 |
– |
#define _USE_MATH_DEFINES |
8 |
|
#include <stdio.h> |
9 |
+ |
#include <string.h> |
10 |
|
#include <stdlib.h> |
11 |
< |
#include <math.h> |
11 |
> |
#include "paths.h" |
12 |
> |
#include "rtmath.h" |
13 |
> |
#include "resolu.h" |
14 |
|
#include "bsdfrep.h" |
15 |
|
|
16 |
< |
const float colarr[6][3] = { |
15 |
< |
.7, 1., .7, |
16 |
< |
1., .7, .7, |
17 |
< |
.7, .7, 1., |
18 |
< |
1., .5, 1., |
19 |
< |
1., 1., .5, |
20 |
< |
.5, 1., 1. |
21 |
< |
}; |
16 |
> |
#define NINCIDENT 37 /* number of samples/hemisphere */ |
17 |
|
|
18 |
+ |
#define GRIDSTEP 2 /* our grid step size */ |
19 |
+ |
#define SAMPRES (GRIDRES/GRIDSTEP) |
20 |
+ |
|
21 |
+ |
int front_comp = 0; /* front component flags (SDsamp*) */ |
22 |
+ |
int back_comp = 0; /* back component flags */ |
23 |
+ |
double overall_min = 1./PI; /* overall minimum BSDF value */ |
24 |
+ |
double min_log10; /* smallest log10 value for plotting */ |
25 |
+ |
double overall_max = .0; /* overall maximum BSDF value */ |
26 |
+ |
|
27 |
+ |
char ourTempDir[TEMPLEN] = ""; /* our temporary directory */ |
28 |
+ |
|
29 |
+ |
const char frpref[] = "frefl"; |
30 |
+ |
const char ftpref[] = "ftrans"; |
31 |
+ |
const char brpref[] = "brefl"; |
32 |
+ |
const char btpref[] = "btrans"; |
33 |
+ |
const char dsuffix[] = ".txt"; |
34 |
+ |
|
35 |
+ |
const char sph_mat[] = "BSDFmat"; |
36 |
+ |
const double sph_rad = 10.; |
37 |
+ |
const double sph_xoffset = 15.; |
38 |
+ |
|
39 |
+ |
#define bsdf_rad (sph_rad*.25) |
40 |
+ |
#define arrow_rad (bsdf_rad*.015) |
41 |
+ |
|
42 |
+ |
#define FEQ(a,b) ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) |
43 |
+ |
|
44 |
+ |
#define set_minlog() (min_log10 = log10(overall_min + 1e-5) - .1) |
45 |
+ |
|
46 |
|
char *progname; |
47 |
|
|
48 |
< |
/* Produce a Radiance model plotting the indicated incident direction(s) */ |
49 |
< |
int |
50 |
< |
main(int argc, char *argv[]) |
48 |
> |
/* Get Fibonacci sphere vector (0 to NINCIDENT-1) */ |
49 |
> |
static RREAL * |
50 |
> |
get_ivector(FVECT iv, int i) |
51 |
|
{ |
52 |
+ |
const double phistep = PI*(3. - 2.236067978); |
53 |
+ |
double r; |
54 |
+ |
|
55 |
+ |
iv[2] = 1. - (i+.5)*(1./NINCIDENT); |
56 |
+ |
r = sqrt(1. - iv[2]*iv[2]); |
57 |
+ |
iv[0] = r * cos((i+1.)*phistep); |
58 |
+ |
iv[1] = r * sin((i+1.)*phistep); |
59 |
+ |
|
60 |
+ |
return(iv); |
61 |
+ |
} |
62 |
+ |
|
63 |
+ |
/* Convert incident vector into sphere position */ |
64 |
+ |
static RREAL * |
65 |
+ |
cvt_sposition(FVECT sp, const FVECT iv, int inc_side) |
66 |
+ |
{ |
67 |
+ |
sp[0] = -iv[0]*sph_rad + inc_side*sph_xoffset; |
68 |
+ |
sp[1] = -iv[1]*sph_rad; |
69 |
+ |
sp[2] = iv[2]*sph_rad; |
70 |
+ |
|
71 |
+ |
return(sp); |
72 |
+ |
} |
73 |
+ |
|
74 |
+ |
/* Get temporary file name */ |
75 |
+ |
static char * |
76 |
+ |
tfile_name(const char *prefix, const char *suffix, int i) |
77 |
+ |
{ |
78 |
+ |
static char buf[128]; |
79 |
+ |
|
80 |
+ |
if (!ourTempDir[0]) { /* create temporary directory */ |
81 |
+ |
mktemp(strcpy(ourTempDir,TEMPLATE)); |
82 |
+ |
if (mkdir(ourTempDir, 0777) < 0) { |
83 |
+ |
perror("mkdir"); |
84 |
+ |
exit(1); |
85 |
+ |
} |
86 |
+ |
} |
87 |
+ |
if (!prefix) prefix = "T"; |
88 |
+ |
if (!suffix) suffix = ""; |
89 |
+ |
sprintf(buf, "%s/%s%03d%s", ourTempDir, prefix, i, suffix); |
90 |
+ |
return(buf); |
91 |
+ |
} |
92 |
+ |
|
93 |
+ |
/* Remove temporary directory & contents */ |
94 |
+ |
static void |
95 |
+ |
cleanup_tmp(void) |
96 |
+ |
{ |
97 |
|
char buf[128]; |
98 |
+ |
|
99 |
+ |
if (!ourTempDir[0]) |
100 |
+ |
return; |
101 |
+ |
#if defined(_WIN32) || defined(_WIN64) |
102 |
+ |
sprintf(buf, "RMDIR %s /S /Q", ourTempDir); |
103 |
+ |
#else |
104 |
+ |
sprintf(buf, "rm -rf %s", ourTempDir); |
105 |
+ |
#endif |
106 |
+ |
system(buf); |
107 |
+ |
} |
108 |
+ |
|
109 |
+ |
/* Run the specified command, returning 1 if OK */ |
110 |
+ |
static int |
111 |
+ |
run_cmd(const char *cmd) |
112 |
+ |
{ |
113 |
+ |
fflush(stdout); |
114 |
+ |
if (system(cmd)) { |
115 |
+ |
fprintf(stderr, "%s: error running: %s\n", progname, cmd); |
116 |
+ |
return(0); |
117 |
+ |
} |
118 |
+ |
return(1); |
119 |
+ |
} |
120 |
+ |
|
121 |
+ |
/* Plot surface points for the given BSDF incident angle */ |
122 |
+ |
static int |
123 |
+ |
plotBSDF(const char *fname, const FVECT ivec, int dfl, const SDData *sd) |
124 |
+ |
{ |
125 |
+ |
FILE *fp = fopen(fname, "w"); |
126 |
+ |
int i, j; |
127 |
+ |
|
128 |
+ |
if (fp == NULL) { |
129 |
+ |
fprintf(stderr, "%s: cannot open '%s' for writing\n", |
130 |
+ |
progname, fname); |
131 |
+ |
return(0); |
132 |
+ |
} |
133 |
+ |
if (ivec[2] > 0) { |
134 |
+ |
input_orient = 1; |
135 |
+ |
output_orient = dfl&SDsampR ? 1 : -1; |
136 |
+ |
} else { |
137 |
+ |
input_orient = -1; |
138 |
+ |
output_orient = dfl&SDsampR ? -1 : 1; |
139 |
+ |
} |
140 |
+ |
for (i = SAMPRES; i--; ) |
141 |
+ |
for (j = 0; j < SAMPRES; j++) { |
142 |
+ |
FVECT ovec; |
143 |
+ |
SDValue sval; |
144 |
+ |
double bsdf; |
145 |
+ |
ovec_from_pos(ovec, i*GRIDSTEP, j*GRIDSTEP); |
146 |
+ |
if (SDreportError(SDevalBSDF(&sval, ovec, |
147 |
+ |
ivec, sd), stderr)) |
148 |
+ |
return(0); |
149 |
+ |
if (sval.cieY > overall_max) |
150 |
+ |
overall_max = sval.cieY; |
151 |
+ |
bsdf = (sval.cieY < overall_min) ? overall_min : sval.cieY; |
152 |
+ |
bsdf = log10(bsdf) - min_log10; |
153 |
+ |
fprintf(fp, "%.5f %.5f %.5f\n", |
154 |
+ |
ovec[0]*bsdf, ovec[1]*bsdf, ovec[2]*bsdf); |
155 |
+ |
} |
156 |
+ |
if (fclose(fp) == EOF) { |
157 |
+ |
fprintf(stderr, "%s: error writing data to '%s'\n", |
158 |
+ |
progname, fname); |
159 |
+ |
return(0); |
160 |
+ |
} |
161 |
+ |
return(1); |
162 |
+ |
} |
163 |
+ |
|
164 |
+ |
/* Build BSDF values from loaded XML file */ |
165 |
+ |
static int |
166 |
+ |
build_wBSDF(const SDData *sd) |
167 |
+ |
{ |
168 |
+ |
FVECT ivec; |
169 |
+ |
int i; |
170 |
+ |
|
171 |
+ |
if (front_comp & SDsampR) |
172 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
173 |
+ |
get_ivector(ivec, i); |
174 |
+ |
if (!plotBSDF(tfile_name(frpref, dsuffix, i), |
175 |
+ |
ivec, SDsampR, sd)) |
176 |
+ |
return(0); |
177 |
+ |
} |
178 |
+ |
if (front_comp & SDsampT) |
179 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
180 |
+ |
get_ivector(ivec, i); |
181 |
+ |
if (!plotBSDF(tfile_name(ftpref, dsuffix, i), |
182 |
+ |
ivec, SDsampT, sd)) |
183 |
+ |
return(0); |
184 |
+ |
} |
185 |
+ |
if (back_comp & SDsampR) |
186 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
187 |
+ |
get_ivector(ivec, i); |
188 |
+ |
ivec[0] = -ivec[0]; ivec[2] = -ivec[2]; |
189 |
+ |
if (!plotBSDF(tfile_name(brpref, dsuffix, i), |
190 |
+ |
ivec, SDsampR, sd)) |
191 |
+ |
return(0); |
192 |
+ |
} |
193 |
+ |
if (back_comp & SDsampT) |
194 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
195 |
+ |
get_ivector(ivec, i); |
196 |
+ |
ivec[0] = -ivec[0]; ivec[2] = -ivec[2]; |
197 |
+ |
if (!plotBSDF(tfile_name(btpref, dsuffix, i), |
198 |
+ |
ivec, SDsampT, sd)) |
199 |
+ |
return(0); |
200 |
+ |
} |
201 |
+ |
return(1); |
202 |
+ |
} |
203 |
+ |
|
204 |
+ |
/* Plot surface points using radial basis function */ |
205 |
+ |
static int |
206 |
+ |
plotRBF(const char *fname, const RBFNODE *rbf) |
207 |
+ |
{ |
208 |
+ |
FILE *fp = fopen(fname, "w"); |
209 |
+ |
int i, j; |
210 |
+ |
|
211 |
+ |
if (fp == NULL) { |
212 |
+ |
fprintf(stderr, "%s: cannot open '%s' for writing\n", |
213 |
+ |
progname, fname); |
214 |
+ |
return(0); |
215 |
+ |
} |
216 |
+ |
for (i = SAMPRES; i--; ) |
217 |
+ |
for (j = 0; j < SAMPRES; j++) { |
218 |
+ |
FVECT ovec; |
219 |
+ |
double bsdf; |
220 |
+ |
ovec_from_pos(ovec, i*GRIDSTEP, j*GRIDSTEP); |
221 |
+ |
bsdf = eval_rbfrep(rbf, ovec); |
222 |
+ |
if (bsdf > overall_max) |
223 |
+ |
overall_max = bsdf; |
224 |
+ |
else if (bsdf < overall_min) |
225 |
+ |
bsdf = overall_min; |
226 |
+ |
bsdf = log10(bsdf) - min_log10; |
227 |
+ |
fprintf(fp, "%.5f %.5f %.5f\n", |
228 |
+ |
ovec[0]*bsdf, ovec[1]*bsdf, ovec[2]*bsdf); |
229 |
+ |
} |
230 |
+ |
if (fclose(fp) == EOF) { |
231 |
+ |
fprintf(stderr, "%s: error writing data to '%s'\n", |
232 |
+ |
progname, fname); |
233 |
+ |
return(0); |
234 |
+ |
} |
235 |
+ |
return(1); |
236 |
+ |
} |
237 |
+ |
|
238 |
+ |
/* Build BSDF values from scattering interpolant representation */ |
239 |
+ |
static int |
240 |
+ |
build_wRBF(void) |
241 |
+ |
{ |
242 |
+ |
const char *pref; |
243 |
+ |
int i; |
244 |
+ |
|
245 |
+ |
if (input_orient > 0) { |
246 |
+ |
if (output_orient > 0) |
247 |
+ |
pref = frpref; |
248 |
+ |
else |
249 |
+ |
pref = ftpref; |
250 |
+ |
} else if (output_orient < 0) |
251 |
+ |
pref = brpref; |
252 |
+ |
else |
253 |
+ |
pref = btpref; |
254 |
+ |
|
255 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
256 |
+ |
FVECT ivec; |
257 |
+ |
RBFNODE *rbf; |
258 |
+ |
get_ivector(ivec, i); |
259 |
+ |
if (input_orient < 0) { |
260 |
+ |
ivec[0] = -ivec[0]; ivec[2] = -ivec[2]; |
261 |
+ |
} |
262 |
+ |
rbf = advect_rbf(ivec, 15000); |
263 |
+ |
if (!plotRBF(tfile_name(pref, dsuffix, i), rbf)) |
264 |
+ |
return(0); |
265 |
+ |
if (rbf) free(rbf); |
266 |
+ |
} |
267 |
+ |
return(1); /* next call frees */ |
268 |
+ |
} |
269 |
+ |
|
270 |
+ |
/* Put out mirror arrow for the given incident vector */ |
271 |
+ |
static void |
272 |
+ |
put_mirror_arrow(const FVECT ivec, int inc_side) |
273 |
+ |
{ |
274 |
+ |
const double arrow_len = 1.2*bsdf_rad; |
275 |
+ |
const double tip_len = 0.2*bsdf_rad; |
276 |
+ |
FVECT origin, refl; |
277 |
+ |
int i; |
278 |
+ |
|
279 |
+ |
cvt_sposition(origin, ivec, inc_side); |
280 |
+ |
|
281 |
+ |
refl[0] = -2.*ivec[2]*ivec[0]; |
282 |
+ |
refl[1] = -2.*ivec[2]*ivec[1]; |
283 |
+ |
refl[2] = 2.*ivec[2]*ivec[2] - 1.; |
284 |
+ |
|
285 |
+ |
printf("\n# Mirror arrow\n"); |
286 |
+ |
printf("\narrow_mat cylinder inc_dir\n0\n0\n7"); |
287 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
288 |
+ |
origin[0], origin[1], origin[2]+arrow_len, |
289 |
+ |
origin[0], origin[1], origin[2], |
290 |
+ |
arrow_rad); |
291 |
+ |
printf("\narrow_mat cylinder mir_dir\n0\n0\n7"); |
292 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
293 |
+ |
origin[0], origin[1], origin[2], |
294 |
+ |
origin[0] + arrow_len*refl[0], |
295 |
+ |
origin[1] + arrow_len*refl[1], |
296 |
+ |
origin[2] + arrow_len*refl[2], |
297 |
+ |
arrow_rad); |
298 |
+ |
printf("\narrow_mat cone mir_tip\n0\n0\n8"); |
299 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
300 |
+ |
origin[0] + (arrow_len-.5*tip_len)*refl[0], |
301 |
+ |
origin[1] + (arrow_len-.5*tip_len)*refl[1], |
302 |
+ |
origin[2] + (arrow_len-.5*tip_len)*refl[2], |
303 |
+ |
origin[0] + (arrow_len+.5*tip_len)*refl[0], |
304 |
+ |
origin[1] + (arrow_len+.5*tip_len)*refl[1], |
305 |
+ |
origin[2] + (arrow_len+.5*tip_len)*refl[2], |
306 |
+ |
2.*arrow_rad); |
307 |
+ |
} |
308 |
+ |
|
309 |
+ |
/* Put out transmitted direction arrow for the given incident vector */ |
310 |
+ |
static void |
311 |
+ |
put_trans_arrow(const FVECT ivec, int inc_side) |
312 |
+ |
{ |
313 |
+ |
const double arrow_len = 1.2*bsdf_rad; |
314 |
+ |
const double tip_len = 0.2*bsdf_rad; |
315 |
+ |
FVECT origin; |
316 |
+ |
int i; |
317 |
+ |
|
318 |
+ |
cvt_sposition(origin, ivec, inc_side); |
319 |
+ |
|
320 |
+ |
printf("\n# Transmission arrow\n"); |
321 |
+ |
printf("\narrow_mat cylinder trans_dir\n0\n0\n7"); |
322 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
323 |
+ |
origin[0], origin[1], origin[2], |
324 |
+ |
origin[0], origin[1], origin[2]-arrow_len, |
325 |
+ |
arrow_rad); |
326 |
+ |
printf("\narrow_mat cone trans_tip\n0\n0\n8"); |
327 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
328 |
+ |
origin[0], origin[1], origin[2]-arrow_len+.5*tip_len, |
329 |
+ |
origin[0], origin[1], origin[2]-arrow_len-.5*tip_len, |
330 |
+ |
2.*arrow_rad); |
331 |
+ |
} |
332 |
+ |
|
333 |
+ |
/* Compute rotation (x,y,z) => (xp,yp,zp) */ |
334 |
+ |
static int |
335 |
+ |
addrot(char *xf, const FVECT xp, const FVECT yp, const FVECT zp) |
336 |
+ |
{ |
337 |
+ |
int n = 0; |
338 |
+ |
double theta; |
339 |
+ |
|
340 |
+ |
if (yp[2]*yp[2] + zp[2]*zp[2] < 2.*FTINY*FTINY) { |
341 |
+ |
/* Special case for X' along Z-axis */ |
342 |
+ |
theta = -atan2(yp[0], yp[1]); |
343 |
+ |
sprintf(xf, " -ry %f -rz %f", |
344 |
+ |
xp[2] < 0.0 ? 90.0 : -90.0, |
345 |
+ |
theta*(180./PI)); |
346 |
+ |
return(4); |
347 |
+ |
} |
348 |
+ |
theta = atan2(yp[2], zp[2]); |
349 |
+ |
if (!FEQ(theta,0.0)) { |
350 |
+ |
sprintf(xf, " -rx %f", theta*(180./PI)); |
351 |
+ |
while (*xf) ++xf; |
352 |
+ |
n += 2; |
353 |
+ |
} |
354 |
+ |
theta = Asin(-xp[2]); |
355 |
+ |
if (!FEQ(theta,0.0)) { |
356 |
+ |
sprintf(xf, " -ry %f", theta*(180./PI)); |
357 |
+ |
while (*xf) ++xf; |
358 |
+ |
n += 2; |
359 |
+ |
} |
360 |
+ |
theta = atan2(xp[1], xp[0]); |
361 |
+ |
if (!FEQ(theta,0.0)) { |
362 |
+ |
sprintf(xf, " -rz %f", theta*(180./PI)); |
363 |
+ |
/* while (*xf) ++xf; */ |
364 |
+ |
n += 2; |
365 |
+ |
} |
366 |
+ |
return(n); |
367 |
+ |
} |
368 |
+ |
|
369 |
+ |
/* Put out BSDF surfaces */ |
370 |
+ |
static int |
371 |
+ |
put_BSDFs(void) |
372 |
+ |
{ |
373 |
+ |
const double scalef = bsdf_rad/(log10(overall_max) - min_log10); |
374 |
+ |
FVECT ivec, sorg, upv; |
375 |
+ |
RREAL vMtx[3][3]; |
376 |
+ |
char *fname; |
377 |
+ |
char cmdbuf[256]; |
378 |
+ |
char xfargs[128]; |
379 |
+ |
int nxfa; |
380 |
+ |
int i; |
381 |
+ |
|
382 |
+ |
printf("\n# Gensurf output corresponding to %d incident directions\n", |
383 |
+ |
NINCIDENT); |
384 |
+ |
|
385 |
+ |
printf("\nvoid glow arrow_glow\n0\n0\n4 1 0 1 0\n"); |
386 |
+ |
printf("\nvoid mixfunc arrow_mat\n4 arrow_glow void 0.5 .\n0\n0\n"); |
387 |
+ |
|
388 |
+ |
if (front_comp & SDsampR) /* front reflection */ |
389 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
390 |
+ |
get_ivector(ivec, i); |
391 |
+ |
put_mirror_arrow(ivec, 1); |
392 |
+ |
cvt_sposition(sorg, ivec, 1); |
393 |
+ |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
394 |
+ |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
395 |
+ |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
396 |
+ |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
397 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
398 |
+ |
sorg[0], sorg[1], sorg[2]); |
399 |
+ |
nxfa = 6; |
400 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
401 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
402 |
+ |
4+nxfa, xfargs); |
403 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
404 |
+ |
SDcompXform(vMtx, ivec, upv); |
405 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
406 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
407 |
+ |
scalef, sorg[0], sorg[1], sorg[2]); |
408 |
+ |
nxfa += 6; |
409 |
+ |
fname = tfile_name(frpref, dsuffix, i); |
410 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform %s", |
411 |
+ |
frpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
412 |
+ |
xfargs); |
413 |
+ |
if (!run_cmd(cmdbuf)) |
414 |
+ |
return(0); |
415 |
+ |
} |
416 |
+ |
if (front_comp & SDsampT) /* front transmission */ |
417 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
418 |
+ |
get_ivector(ivec, i); |
419 |
+ |
put_trans_arrow(ivec, 1); |
420 |
+ |
cvt_sposition(sorg, ivec, 1); |
421 |
+ |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
422 |
+ |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
423 |
+ |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
424 |
+ |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
425 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
426 |
+ |
sorg[0], sorg[1], sorg[2]); |
427 |
+ |
nxfa = 6; |
428 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
429 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
430 |
+ |
4+nxfa, xfargs); |
431 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
432 |
+ |
SDcompXform(vMtx, ivec, upv); |
433 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
434 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
435 |
+ |
scalef, sorg[0], sorg[1], sorg[2]); |
436 |
+ |
nxfa += 6; |
437 |
+ |
fname = tfile_name(ftpref, dsuffix, i); |
438 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I %s", |
439 |
+ |
ftpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
440 |
+ |
xfargs); |
441 |
+ |
if (!run_cmd(cmdbuf)) |
442 |
+ |
return(0); |
443 |
+ |
} |
444 |
+ |
if (back_comp & SDsampR) /* rear reflection */ |
445 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
446 |
+ |
get_ivector(ivec, i); |
447 |
+ |
put_mirror_arrow(ivec, -1); |
448 |
+ |
cvt_sposition(sorg, ivec, -1); |
449 |
+ |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
450 |
+ |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
451 |
+ |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
452 |
+ |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
453 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
454 |
+ |
sorg[0], sorg[1], sorg[2]); |
455 |
+ |
nxfa = 6; |
456 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
457 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
458 |
+ |
4+nxfa, xfargs); |
459 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
460 |
+ |
SDcompXform(vMtx, ivec, upv); |
461 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
462 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
463 |
+ |
scalef, sorg[0], sorg[1], sorg[2]); |
464 |
+ |
nxfa += 6; |
465 |
+ |
fname = tfile_name(brpref, dsuffix, i); |
466 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 %s", |
467 |
+ |
brpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
468 |
+ |
xfargs); |
469 |
+ |
if (!run_cmd(cmdbuf)) |
470 |
+ |
return(0); |
471 |
+ |
} |
472 |
+ |
if (back_comp & SDsampT) /* rear transmission */ |
473 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
474 |
+ |
get_ivector(ivec, i); |
475 |
+ |
put_trans_arrow(ivec, -1); |
476 |
+ |
cvt_sposition(sorg, ivec, -1); |
477 |
+ |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
478 |
+ |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
479 |
+ |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
480 |
+ |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
481 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
482 |
+ |
sorg[0], sorg[1], sorg[2]); |
483 |
+ |
nxfa = 6; |
484 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
485 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
486 |
+ |
4+nxfa, xfargs); |
487 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
488 |
+ |
SDcompXform(vMtx, ivec, upv); |
489 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
490 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
491 |
+ |
scalef, sorg[0], sorg[1], sorg[2]); |
492 |
+ |
nxfa += 6; |
493 |
+ |
fname = tfile_name(btpref, dsuffix, i); |
494 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 %s", |
495 |
+ |
btpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
496 |
+ |
xfargs); |
497 |
+ |
if (!run_cmd(cmdbuf)) |
498 |
+ |
return(0); |
499 |
+ |
} |
500 |
+ |
return(1); |
501 |
+ |
} |
502 |
+ |
|
503 |
+ |
/* Put our hemisphere material */ |
504 |
+ |
static void |
505 |
+ |
put_matBSDF(const char *XMLfile) |
506 |
+ |
{ |
507 |
+ |
const char *curdir = "./"; |
508 |
+ |
|
509 |
+ |
if (!XMLfile) { /* simple material */ |
510 |
+ |
printf("\n# Simplified material because we have no XML input\n"); |
511 |
+ |
printf("\nvoid brightfunc latlong\n2 latlong bsdf2rad.cal\n0\n0\n"); |
512 |
+ |
if ((front_comp|back_comp) & SDsampT) |
513 |
+ |
printf("\nlatlong trans %s\n0\n0\n7 .75 .75 .75 0 .04 .5 .8\n", |
514 |
+ |
sph_mat); |
515 |
+ |
else |
516 |
+ |
printf("\nlatlong plastic %s\n0\n0\n5 .5 .5 .5 0 0\n", |
517 |
+ |
sph_mat); |
518 |
+ |
return; |
519 |
+ |
} |
520 |
+ |
switch (XMLfile[0]) { /* avoid RAYPATH search */ |
521 |
+ |
case '.': |
522 |
+ |
CASEDIRSEP: |
523 |
+ |
curdir = ""; |
524 |
+ |
break; |
525 |
+ |
case '\0': |
526 |
+ |
fprintf(stderr, "%s: empty file name in put_matBSDF\n", progname); |
527 |
+ |
exit(1); |
528 |
+ |
break; |
529 |
+ |
} |
530 |
+ |
printf("\n# Actual BSDF material for rendering the hemispheres\n"); |
531 |
+ |
printf("\nvoid BSDF BSDFmat\n6 0 \"%s%s\" upx upy upz bsdf2rad.cal\n0\n0\n", |
532 |
+ |
curdir, XMLfile); |
533 |
+ |
printf("\nvoid plastic black\n0\n0\n5 0 0 0 0 0\n"); |
534 |
+ |
printf("\nvoid mixfunc %s\n4 BSDFmat black latlong bsdf2rad.cal\n0\n0\n", |
535 |
+ |
sph_mat); |
536 |
+ |
} |
537 |
+ |
|
538 |
+ |
/* Put out overhead parallel light source */ |
539 |
+ |
static void |
540 |
+ |
put_source(void) |
541 |
+ |
{ |
542 |
+ |
printf("\n# Overhead parallel light source\n"); |
543 |
+ |
printf("\nvoid light bright\n0\n0\n3 2500 2500 2500\n"); |
544 |
+ |
printf("\nbright source light\n0\n0\n4 0 0 1 2\n"); |
545 |
+ |
printf("\n# Material used for labels\n"); |
546 |
+ |
printf("\nvoid trans vellum\n0\n0\n7 1 1 1 0 0 .5 0\n"); |
547 |
+ |
} |
548 |
+ |
|
549 |
+ |
/* Put out hemisphere(s) */ |
550 |
+ |
static void |
551 |
+ |
put_hemispheres(void) |
552 |
+ |
{ |
553 |
+ |
const int nsegs = 131; |
554 |
+ |
|
555 |
+ |
printf("\n# Hemisphere(s) for showing BSDF appearance (if XML file)\n"); |
556 |
+ |
if (front_comp) { |
557 |
+ |
printf( |
558 |
+ |
"\n!genrev %s Front \"R*sin(A*t)\" \"R*cos(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", |
559 |
+ |
sph_mat, nsegs, sph_rad, 0.495*PI, sph_xoffset); |
560 |
+ |
printf("\nvoid brighttext front_text\n3 helvet.fnt . FRONT\n0\n"); |
561 |
+ |
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
562 |
+ |
-.22*sph_rad + sph_xoffset, -1.4*sph_rad, |
563 |
+ |
.35/5.*sph_rad, -1.6*.35/5.*sph_rad); |
564 |
+ |
printf("\nfront_text alias front_label_mat vellum\n"); |
565 |
+ |
printf("\nfront_label_mat polygon front_label\n0\n0\n12"); |
566 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
567 |
+ |
-.25*sph_rad + sph_xoffset, -1.3*sph_rad, |
568 |
+ |
-.25*sph_rad + sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, |
569 |
+ |
.25*sph_rad + sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, |
570 |
+ |
.25*sph_rad + sph_xoffset, -1.3*sph_rad ); |
571 |
+ |
} |
572 |
+ |
if (back_comp) { |
573 |
+ |
printf( |
574 |
+ |
"\n!genrev %s Back \"R*cos(A*t)\" \"R*sin(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", |
575 |
+ |
sph_mat, nsegs, sph_rad, 0.495*PI, -sph_xoffset); |
576 |
+ |
printf("\nvoid brighttext back_text\n3 helvet.fnt . BACK\n0\n"); |
577 |
+ |
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
578 |
+ |
-.22*sph_rad - sph_xoffset, -1.4*sph_rad, |
579 |
+ |
.35/4.*sph_rad, -1.6*.35/4.*sph_rad); |
580 |
+ |
printf("\nback_text alias back_label_mat vellum\n"); |
581 |
+ |
printf("\nback_label_mat polygon back_label\n0\n0\n12"); |
582 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
583 |
+ |
-.25*sph_rad - sph_xoffset, -1.3*sph_rad, |
584 |
+ |
-.25*sph_rad - sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, |
585 |
+ |
.25*sph_rad - sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, |
586 |
+ |
.25*sph_rad - sph_xoffset, -1.3*sph_rad ); |
587 |
+ |
} |
588 |
+ |
} |
589 |
+ |
|
590 |
+ |
/* Put out falsecolor scale and name label */ |
591 |
+ |
static void |
592 |
+ |
put_scale(void) |
593 |
+ |
{ |
594 |
+ |
const double max_log10 = log10(overall_max); |
595 |
+ |
const double leg_width = 2.*.75*(fabs(sph_xoffset) - sph_rad); |
596 |
+ |
const double leg_height = 2.*sph_rad; |
597 |
+ |
const int text_lines = 6; |
598 |
+ |
const int text_digits = 8; |
599 |
+ |
char fmt[16]; |
600 |
+ |
int i; |
601 |
+ |
|
602 |
+ |
printf("\n# BSDF legend with falsecolor scale\n"); |
603 |
+ |
printf("\nvoid colorfunc lscale\n10 sca_red(Py) sca_grn(Py) sca_blu(Py)"); |
604 |
+ |
printf("\n\tbsdf2rad.cal -s %f -t 0 %f 0\n0\n0\n", leg_height, -.5*leg_height); |
605 |
+ |
sprintf(fmt, "%%.%df", text_digits-3); |
606 |
+ |
for (i = 0; i < text_lines; i++) { |
607 |
+ |
char vbuf[16]; |
608 |
+ |
sprintf(vbuf, fmt, pow(10., (i+.5)/text_lines*(max_log10-min_log10)+min_log10)); |
609 |
+ |
printf("\nlscale brighttext lscale\n"); |
610 |
+ |
printf("3 helvet.fnt . %s\n0\n12\n", vbuf); |
611 |
+ |
printf("\t%f %f 0\n", -.45*leg_width, ((i+.9)/text_lines-.5)*leg_height); |
612 |
+ |
printf("\t%f 0 0\n", .8*leg_width/strlen(vbuf)); |
613 |
+ |
printf("\t0 %f 0\n", -.9/text_lines*leg_height); |
614 |
+ |
printf("\t.01 1 -.1\n"); |
615 |
+ |
} |
616 |
+ |
printf("\nlscale alias legend_mat vellum\n"); |
617 |
+ |
printf("\nlegend_mat polygon legend\n0\n0\n12"); |
618 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
619 |
+ |
-.5*leg_width, .5*leg_height, |
620 |
+ |
-.5*leg_width, -.5*leg_height, |
621 |
+ |
.5*leg_width, -.5*leg_height, |
622 |
+ |
.5*leg_width, .5*leg_height); |
623 |
+ |
printf("\nvoid brighttext BSDFtitle\n3 helvet.fnt . BSDF\n0\n12\n"); |
624 |
+ |
printf("\t%f %f 0\n", -.25*leg_width, .7*leg_height); |
625 |
+ |
printf("\t%f 0 0\n", .4/4.*leg_width); |
626 |
+ |
printf("\t0 %f 0\n", -.1*leg_height); |
627 |
+ |
printf("\t.01 1 -.1\n"); |
628 |
+ |
printf("\nBSDFtitle alias title_mat vellum\n"); |
629 |
+ |
printf("\ntitle_mat polygon title\n0\n0\n12"); |
630 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
631 |
+ |
-.3*leg_width, .75*leg_height, |
632 |
+ |
-.3*leg_width, .55*leg_height, |
633 |
+ |
.3*leg_width, .55*leg_height, |
634 |
+ |
.3*leg_width, .75*leg_height); |
635 |
+ |
if (!bsdf_name[0]) |
636 |
+ |
return; |
637 |
+ |
printf("\nvoid brighttext BSDFname\n3 helvet.fnt . \"%s\"\n0\n12\n", bsdf_name); |
638 |
+ |
printf("\t%f %f 0\n", -.95*leg_width, -.6*leg_height); |
639 |
+ |
printf("\t%f 0 0\n", 1.8/strlen(bsdf_name)*leg_width); |
640 |
+ |
printf("\t0 %f 0\n", -.1*leg_height); |
641 |
+ |
printf("\t.01 1 -.1\n"); |
642 |
+ |
printf("\nBSDFname alias name_mat vellum\n"); |
643 |
+ |
printf("\nname_mat polygon name\n0\n0\n12"); |
644 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
645 |
+ |
-leg_width, -.55*leg_height, |
646 |
+ |
-leg_width, -.75*leg_height, |
647 |
+ |
leg_width, -.75*leg_height, |
648 |
+ |
leg_width, -.55*leg_height); |
649 |
+ |
} |
650 |
+ |
|
651 |
+ |
/* Convert MGF to Radiance in output */ |
652 |
+ |
static void |
653 |
+ |
convert_mgf(const char *mgfdata) |
654 |
+ |
{ |
655 |
+ |
int len = strlen(mgfdata); |
656 |
+ |
char mgfn[128]; |
657 |
+ |
char radfn[128]; |
658 |
+ |
char cmdbuf[256]; |
659 |
+ |
float xmin, xmax, ymin, ymax, zmin, zmax; |
660 |
+ |
double max_dim; |
661 |
+ |
int fd; |
662 |
|
FILE *fp; |
31 |
– |
RBFNODE *rbf; |
32 |
– |
double bsdf, min_log; |
33 |
– |
FVECT dir; |
34 |
– |
int i, j, n; |
663 |
|
|
664 |
+ |
if (!len) return; |
665 |
+ |
strcpy(mgfn, tfile_name("geom", ".mgf", 0)); |
666 |
+ |
fd = open(mgfn, O_WRONLY|O_CREAT, 0666); |
667 |
+ |
if (fd < 0 || write(fd, mgfdata, len) != len) { |
668 |
+ |
fprintf(stderr, "%s: cannot write file '%s'\n", |
669 |
+ |
progname, mgfn); |
670 |
+ |
return; |
671 |
+ |
} |
672 |
+ |
close(fd); |
673 |
+ |
strcpy(radfn, tfile_name("geom", ".rad", 0)); |
674 |
+ |
sprintf(cmdbuf, "mgf2rad %s > %s", mgfn, radfn); |
675 |
+ |
if (!run_cmd(cmdbuf)) |
676 |
+ |
return; |
677 |
+ |
sprintf(cmdbuf, "getbbox -w -h %s", radfn); |
678 |
+ |
if ((fp = popen(cmdbuf, "r")) == NULL || |
679 |
+ |
fscanf(fp, "%f %f %f %f %f %f", |
680 |
+ |
&xmin, &xmax, &ymin, &ymax, &zmin, &zmax) != 6 |
681 |
+ |
|| pclose(fp) < 0) { |
682 |
+ |
fprintf(stderr, "%s: error reading from command: %s\n", |
683 |
+ |
progname, cmdbuf); |
684 |
+ |
return; |
685 |
+ |
} |
686 |
+ |
max_dim = ymax - ymin; |
687 |
+ |
if (xmax - xmin > max_dim) |
688 |
+ |
max_dim = xmax - xmin; |
689 |
+ |
if (front_comp) { |
690 |
+ |
printf("\n# BSDF system geometry (front view)\n"); |
691 |
+ |
sprintf(cmdbuf, "xform -t %f %f %f -s %f -t %f %f 0 %s", |
692 |
+ |
-.5*(xmin+xmax), -.5*(ymin+ymax), -zmax, |
693 |
+ |
1.5*sph_rad/max_dim, |
694 |
+ |
sph_xoffset, -2.5*sph_rad, |
695 |
+ |
radfn); |
696 |
+ |
if (!run_cmd(cmdbuf)) |
697 |
+ |
return; |
698 |
+ |
} |
699 |
+ |
if (back_comp) { |
700 |
+ |
printf("\n# BSDF system geometry (back view)\n"); |
701 |
+ |
sprintf(cmdbuf, "xform -t %f %f %f -s %f -ry 180 -t %f %f 0 %s", |
702 |
+ |
-.5*(xmin+xmax), -.5*(ymin+ymax), -zmin, |
703 |
+ |
1.5*sph_rad/max_dim, |
704 |
+ |
-sph_xoffset, -2.5*sph_rad, |
705 |
+ |
radfn); |
706 |
+ |
if (!run_cmd(cmdbuf)) |
707 |
+ |
return; |
708 |
+ |
} |
709 |
+ |
} |
710 |
+ |
|
711 |
+ |
/* Check RBF input header line & get minimum BSDF value */ |
712 |
+ |
static int |
713 |
+ |
rbf_headline(char *s, void *p) |
714 |
+ |
{ |
715 |
+ |
char fmt[64]; |
716 |
+ |
|
717 |
+ |
if (formatval(fmt, s)) { |
718 |
+ |
if (strcmp(fmt, BSDFREP_FMT)) |
719 |
+ |
return(-1); |
720 |
+ |
return(0); |
721 |
+ |
} |
722 |
+ |
if (!strncmp(s, "IO_SIDES=", 9)) { |
723 |
+ |
sscanf(s+9, "%d %d", &input_orient, &output_orient); |
724 |
+ |
if (input_orient == output_orient) { |
725 |
+ |
if (input_orient > 0) |
726 |
+ |
front_comp |= SDsampR; |
727 |
+ |
else |
728 |
+ |
back_comp |= SDsampR; |
729 |
+ |
} else if (input_orient > 0) |
730 |
+ |
front_comp |= SDsampT; |
731 |
+ |
else |
732 |
+ |
back_comp |= SDsampT; |
733 |
+ |
return(0); |
734 |
+ |
} |
735 |
+ |
if (!strncmp(s, "BSDFMIN=", 8)) { |
736 |
+ |
sscanf(s+8, "%lf", &bsdf_min); |
737 |
+ |
if (bsdf_min < overall_min) |
738 |
+ |
overall_min = bsdf_min; |
739 |
+ |
return(0); |
740 |
+ |
} |
741 |
+ |
return(0); |
742 |
+ |
} |
743 |
+ |
|
744 |
+ |
/* Produce a Radiance model plotting the given BSDF representation */ |
745 |
+ |
int |
746 |
+ |
main(int argc, char *argv[]) |
747 |
+ |
{ |
748 |
+ |
int inpXML = -1; |
749 |
+ |
SDData myBSDF; |
750 |
+ |
int n; |
751 |
+ |
/* check arguments */ |
752 |
|
progname = argv[0]; |
753 |
< |
if (argc < 4) { |
754 |
< |
fprintf(stderr, "Usage: %s bsdf.sir theta1 phi1 .. > output.rad\n", argv[0]); |
755 |
< |
return(1); |
753 |
> |
if (argc > 1 && (n = strlen(argv[1])-4) > 0) { |
754 |
> |
if (!strcasecmp(argv[1]+n, ".xml")) |
755 |
> |
inpXML = 1; |
756 |
> |
else if (!strcasecmp(argv[1]+n, ".sir")) |
757 |
> |
inpXML = 0; |
758 |
|
} |
759 |
< |
/* load input */ |
760 |
< |
if ((fp = fopen(argv[1], "rb")) == NULL) { |
761 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
44 |
< |
argv[0], argv[1]); |
759 |
> |
if (inpXML < 0 || inpXML & (argc > 2)) { |
760 |
> |
fprintf(stderr, "Usage: %s bsdf.xml > output.rad\n", progname); |
761 |
> |
fprintf(stderr, " Or: %s hemi1.sir hemi2.sir .. > output.rad\n", progname); |
762 |
|
return(1); |
763 |
|
} |
764 |
< |
if (!load_bsdf_rep(fp)) |
765 |
< |
return(1); |
766 |
< |
fclose(fp); |
767 |
< |
min_log = log(bsdf_min*.5); |
768 |
< |
/* output surface(s) */ |
769 |
< |
for (n = 0; (n < 6) & (2*n+3 < argc); n++) { |
53 |
< |
printf("void trans tmat\n0\n0\n7 %f %f %f .04 .04 .9 1\n", |
54 |
< |
colarr[n][0], colarr[n][1], colarr[n][2]); |
55 |
< |
fflush(stdout); |
56 |
< |
sprintf(buf, "gensurf tmat bsdf - - - %d %d", GRIDRES-1, GRIDRES-1); |
57 |
< |
fp = popen(buf, "w"); |
58 |
< |
if (fp == NULL) { |
59 |
< |
fprintf(stderr, "%s: cannot open '| %s'\n", argv[0], buf); |
764 |
> |
fputs("# ", stdout); /* copy our command */ |
765 |
> |
printargs(argc, argv, stdout); |
766 |
> |
/* evaluate BSDF */ |
767 |
> |
if (inpXML) { |
768 |
> |
SDclearBSDF(&myBSDF, argv[1]); |
769 |
> |
if (SDreportError(SDloadFile(&myBSDF, argv[1]), stderr)) |
770 |
|
return(1); |
771 |
+ |
if (myBSDF.rf != NULL) front_comp |= SDsampR; |
772 |
+ |
if (myBSDF.tf != NULL) front_comp |= SDsampT; |
773 |
+ |
if (myBSDF.rb != NULL) back_comp |= SDsampR; |
774 |
+ |
if (myBSDF.tb != NULL) back_comp |= SDsampT; |
775 |
+ |
if (!front_comp & !back_comp) { |
776 |
+ |
fprintf(stderr, "%s: nothing to plot in '%s'\n", |
777 |
+ |
progname, argv[1]); |
778 |
+ |
return(1); |
779 |
|
} |
780 |
< |
dir[2] = sin((M_PI/180.)*atof(argv[2*n+2])); |
781 |
< |
dir[0] = dir[2] * cos((M_PI/180.)*atof(argv[2*n+3])); |
782 |
< |
dir[1] = dir[2] * sin((M_PI/180.)*atof(argv[2*n+3])); |
783 |
< |
dir[2] = input_orient * sqrt(1. - dir[2]*dir[2]); |
784 |
< |
fprintf(stderr, "Computing DSF for incident direction (%.1f,%.1f)\n", |
785 |
< |
get_theta180(dir), get_phi360(dir)); |
786 |
< |
rbf = advect_rbf(dir, 15000); |
787 |
< |
if (rbf == NULL) |
788 |
< |
fputs("NULL RBF\n", stderr); |
71 |
< |
else |
72 |
< |
fprintf(stderr, "Hemispherical reflectance: %.3f\n", rbf->vtotal); |
73 |
< |
for (i = 0; i < GRIDRES; i++) |
74 |
< |
for (j = 0; j < GRIDRES; j++) { |
75 |
< |
ovec_from_pos(dir, i, j); |
76 |
< |
bsdf = eval_rbfrep(rbf, dir) / (output_orient*dir[2]); |
77 |
< |
bsdf = log(bsdf) - min_log; |
78 |
< |
fprintf(fp, "%.8e %.8e %.8e\n", |
79 |
< |
dir[0]*bsdf, dir[1]*bsdf, dir[2]*bsdf); |
80 |
< |
} |
81 |
< |
if (rbf != NULL) |
82 |
< |
free(rbf); |
83 |
< |
if (pclose(fp)) |
780 |
> |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
781 |
> |
overall_min = myBSDF.rLambFront.cieY/PI; |
782 |
> |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
783 |
> |
overall_min = myBSDF.rLambBack.cieY/PI; |
784 |
> |
if ((front_comp|back_comp) & SDsampT && |
785 |
> |
myBSDF.tLamb.cieY < overall_min*PI) |
786 |
> |
overall_min = myBSDF.tLamb.cieY/PI; |
787 |
> |
set_minlog(); |
788 |
> |
if (!build_wBSDF(&myBSDF)) |
789 |
|
return(1); |
790 |
+ |
if (myBSDF.matn[0]) |
791 |
+ |
strcpy(bsdf_name, myBSDF.matn); |
792 |
+ |
else |
793 |
+ |
strcpy(bsdf_name, myBSDF.name); |
794 |
+ |
strcpy(bsdf_manuf, myBSDF.makr); |
795 |
+ |
put_matBSDF(argv[1]); |
796 |
+ |
} else { |
797 |
+ |
FILE *fp; |
798 |
+ |
for (n = 1; n < argc; n++) { |
799 |
+ |
fp = fopen(argv[n], "rb"); |
800 |
+ |
if (fp == NULL) { |
801 |
+ |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
802 |
+ |
progname, argv[n]); |
803 |
+ |
return(1); |
804 |
+ |
} |
805 |
+ |
if (getheader(fp, rbf_headline, NULL) < 0) { |
806 |
+ |
fprintf(stderr, "%s: bad BSDF interpolant '%s'\n", |
807 |
+ |
progname, argv[n]); |
808 |
+ |
return(1); |
809 |
+ |
} |
810 |
+ |
fclose(fp); |
811 |
+ |
} |
812 |
+ |
set_minlog(); |
813 |
+ |
for (n = 1; n < argc; n++) { |
814 |
+ |
fp = fopen(argv[n], "rb"); |
815 |
+ |
if (!load_bsdf_rep(fp)) |
816 |
+ |
return(1); |
817 |
+ |
fclose(fp); |
818 |
+ |
if (!build_wRBF()) |
819 |
+ |
return(1); |
820 |
+ |
} |
821 |
+ |
put_matBSDF(NULL); |
822 |
|
} |
823 |
+ |
put_source(); /* before hemispheres & labels */ |
824 |
+ |
put_hemispheres(); |
825 |
+ |
put_scale(); |
826 |
+ |
if (inpXML && myBSDF.mgf) |
827 |
+ |
convert_mgf(myBSDF.mgf); |
828 |
+ |
if (!put_BSDFs()) |
829 |
+ |
return(1); |
830 |
+ |
cleanup_tmp(); |
831 |
|
return(0); |
832 |
|
} |