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 25 /* 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 FVECT Xaxis = {1., 0., 0.}; |
30 |
+ |
const FVECT Yaxis = {0., 1., 0.}; |
31 |
+ |
const FVECT Zaxis = {0., 0., 1.}; |
32 |
+ |
|
33 |
+ |
const char frpref[] = "frefl"; |
34 |
+ |
const char ftpref[] = "ftrans"; |
35 |
+ |
const char brpref[] = "brefl"; |
36 |
+ |
const char btpref[] = "btrans"; |
37 |
+ |
const char dsuffix[] = ".txt"; |
38 |
+ |
|
39 |
+ |
const char sph_mat[] = "BSDFmat"; |
40 |
+ |
const double sph_rad = 10.; |
41 |
+ |
const double sph_xoffset = 15.; |
42 |
+ |
|
43 |
+ |
#define bsdf_rad (sph_rad*.25) |
44 |
+ |
#define arrow_rad (bsdf_rad*.015) |
45 |
+ |
|
46 |
+ |
#define FEQ(a,b) ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) |
47 |
+ |
|
48 |
+ |
#define set_minlog() (min_log10 = log10(overall_min + 1e-5) - .1) |
49 |
+ |
|
50 |
|
char *progname; |
51 |
|
|
52 |
< |
/* Produce a Radiance model plotting the indicated incident direction(s) */ |
53 |
< |
int |
54 |
< |
main(int argc, char *argv[]) |
52 |
> |
/* Get Fibonacci sphere vector (0 to NINCIDENT-1) */ |
53 |
> |
static void |
54 |
> |
get_ivector(FVECT iv, int i) |
55 |
|
{ |
56 |
+ |
const double zstep = 1./(2*NINCIDENT-1); |
57 |
+ |
const double phistep = PI*(3. - 2.236067978); |
58 |
+ |
double r; |
59 |
+ |
|
60 |
+ |
iv[2] = 1. - (i+.5)*zstep; |
61 |
+ |
r = sqrt(1. - iv[2]*iv[2]); |
62 |
+ |
iv[0] = r * cos((i+1.)*phistep); |
63 |
+ |
iv[1] = r * sin((i+1.)*phistep); |
64 |
+ |
} |
65 |
+ |
|
66 |
+ |
/* Get temporary file name */ |
67 |
+ |
static char * |
68 |
+ |
tfile_name(const char *prefix, const char *suffix, int i) |
69 |
+ |
{ |
70 |
+ |
static char buf[128]; |
71 |
+ |
|
72 |
+ |
if (!ourTempDir[0]) { /* create temporary directory */ |
73 |
+ |
mktemp(strcpy(ourTempDir,TEMPLATE)); |
74 |
+ |
if (mkdir(ourTempDir, 0777) < 0) { |
75 |
+ |
perror("mkdir"); |
76 |
+ |
exit(1); |
77 |
+ |
} |
78 |
+ |
} |
79 |
+ |
if (!prefix) prefix = "T"; |
80 |
+ |
if (!suffix) suffix = ""; |
81 |
+ |
sprintf(buf, "%s/%s%03d%s", ourTempDir, prefix, i, suffix); |
82 |
+ |
return(buf); |
83 |
+ |
} |
84 |
+ |
|
85 |
+ |
/* Remove temporary directory & contents */ |
86 |
+ |
static void |
87 |
+ |
cleanup_tmp(void) |
88 |
+ |
{ |
89 |
|
char buf[128]; |
90 |
+ |
|
91 |
+ |
if (!ourTempDir[0]) |
92 |
+ |
return; |
93 |
+ |
#if defined(_WIN32) || defined(_WIN64) |
94 |
+ |
sprintf(buf, "RMDIR %s /S /Q", ourTempDir); |
95 |
+ |
#else |
96 |
+ |
sprintf(buf, "rm -rf %s", ourTempDir); |
97 |
+ |
#endif |
98 |
+ |
system(buf); |
99 |
+ |
} |
100 |
+ |
|
101 |
+ |
/* Run the specified command, returning 1 if OK */ |
102 |
+ |
static int |
103 |
+ |
run_cmd(const char *cmd) |
104 |
+ |
{ |
105 |
+ |
fflush(stdout); |
106 |
+ |
if (system(cmd)) { |
107 |
+ |
fprintf(stderr, "%s: error running: %s\n", progname, cmd); |
108 |
+ |
return(0); |
109 |
+ |
} |
110 |
+ |
return(1); |
111 |
+ |
} |
112 |
+ |
|
113 |
+ |
/* Plot surface points for the given BSDF incident angle */ |
114 |
+ |
static int |
115 |
+ |
plotBSDF(const char *fname, const FVECT ivec, int dfl, const SDData *sd) |
116 |
+ |
{ |
117 |
+ |
FILE *fp = fopen(fname, "w"); |
118 |
+ |
int i, j; |
119 |
+ |
|
120 |
+ |
if (fp == NULL) { |
121 |
+ |
fprintf(stderr, "%s: cannot open '%s' for writing\n", |
122 |
+ |
progname, fname); |
123 |
+ |
return(0); |
124 |
+ |
} |
125 |
+ |
if (ivec[2] > 0) { |
126 |
+ |
input_orient = 1; |
127 |
+ |
output_orient = dfl&SDsampR ? 1 : -1; |
128 |
+ |
} else { |
129 |
+ |
input_orient = -1; |
130 |
+ |
output_orient = dfl&SDsampR ? -1 : 1; |
131 |
+ |
} |
132 |
+ |
for (i = SAMPRES; i--; ) |
133 |
+ |
for (j = 0; j < SAMPRES; j++) { |
134 |
+ |
FVECT ovec; |
135 |
+ |
SDValue sval; |
136 |
+ |
double bsdf; |
137 |
+ |
ovec_from_pos(ovec, i*GRIDSTEP, j*GRIDSTEP); |
138 |
+ |
if (SDreportError(SDevalBSDF(&sval, ovec, |
139 |
+ |
ivec, sd), stderr)) |
140 |
+ |
return(0); |
141 |
+ |
if (sval.cieY > overall_max) |
142 |
+ |
overall_max = sval.cieY; |
143 |
+ |
bsdf = (sval.cieY < overall_min) ? overall_min : sval.cieY; |
144 |
+ |
bsdf = log10(bsdf) - min_log10; |
145 |
+ |
fprintf(fp, "%.5f %.5f %.5f\n", |
146 |
+ |
ovec[0]*bsdf, ovec[1]*bsdf, ovec[2]*bsdf); |
147 |
+ |
} |
148 |
+ |
if (fclose(fp) == EOF) { |
149 |
+ |
fprintf(stderr, "%s: error writing data to '%s'\n", |
150 |
+ |
progname, fname); |
151 |
+ |
return(0); |
152 |
+ |
} |
153 |
+ |
return(1); |
154 |
+ |
} |
155 |
+ |
|
156 |
+ |
/* Build BSDF values from loaded XML file */ |
157 |
+ |
static int |
158 |
+ |
build_wBSDF(const SDData *sd) |
159 |
+ |
{ |
160 |
+ |
FVECT ivec; |
161 |
+ |
int i; |
162 |
+ |
|
163 |
+ |
if (front_comp & SDsampR) |
164 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
165 |
+ |
get_ivector(ivec, i); |
166 |
+ |
if (!plotBSDF(tfile_name(frpref, dsuffix, i), |
167 |
+ |
ivec, SDsampR, sd)) |
168 |
+ |
return(0); |
169 |
+ |
} |
170 |
+ |
if (front_comp & SDsampT) |
171 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
172 |
+ |
get_ivector(ivec, i); |
173 |
+ |
if (!plotBSDF(tfile_name(ftpref, dsuffix, i), |
174 |
+ |
ivec, SDsampT, sd)) |
175 |
+ |
return(0); |
176 |
+ |
} |
177 |
+ |
if (back_comp & SDsampR) |
178 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
179 |
+ |
get_ivector(ivec, i); |
180 |
+ |
ivec[0] = -ivec[0]; ivec[2] = -ivec[2]; |
181 |
+ |
if (!plotBSDF(tfile_name(brpref, dsuffix, i), |
182 |
+ |
ivec, SDsampR, sd)) |
183 |
+ |
return(0); |
184 |
+ |
} |
185 |
+ |
if (back_comp & SDsampT) |
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(btpref, dsuffix, i), |
190 |
+ |
ivec, SDsampT, sd)) |
191 |
+ |
return(0); |
192 |
+ |
} |
193 |
+ |
return(1); |
194 |
+ |
} |
195 |
+ |
|
196 |
+ |
/* Plot surface points using radial basis function */ |
197 |
+ |
static int |
198 |
+ |
plotRBF(const char *fname, const RBFNODE *rbf) |
199 |
+ |
{ |
200 |
+ |
FILE *fp = fopen(fname, "w"); |
201 |
+ |
int i, j; |
202 |
+ |
|
203 |
+ |
if (fp == NULL) { |
204 |
+ |
fprintf(stderr, "%s: cannot open '%s' for writing\n", |
205 |
+ |
progname, fname); |
206 |
+ |
return(0); |
207 |
+ |
} |
208 |
+ |
for (i = SAMPRES; i--; ) |
209 |
+ |
for (j = 0; j < SAMPRES; j++) { |
210 |
+ |
FVECT ovec; |
211 |
+ |
double bsdf; |
212 |
+ |
ovec_from_pos(ovec, i*GRIDSTEP, j*GRIDSTEP); |
213 |
+ |
bsdf = eval_rbfrep(rbf, ovec); |
214 |
+ |
if (bsdf > overall_max) |
215 |
+ |
overall_max = bsdf; |
216 |
+ |
else if (bsdf < overall_min) |
217 |
+ |
bsdf = overall_min; |
218 |
+ |
bsdf = log10(bsdf) - min_log10; |
219 |
+ |
fprintf(fp, "%.5f %.5f %.5f\n", |
220 |
+ |
ovec[0]*bsdf, ovec[1]*bsdf, ovec[2]*bsdf); |
221 |
+ |
} |
222 |
+ |
if (fclose(fp) == EOF) { |
223 |
+ |
fprintf(stderr, "%s: error writing data to '%s'\n", |
224 |
+ |
progname, fname); |
225 |
+ |
return(0); |
226 |
+ |
} |
227 |
+ |
return(1); |
228 |
+ |
} |
229 |
+ |
|
230 |
+ |
/* Build BSDF values from scattering interpolant representation */ |
231 |
+ |
static int |
232 |
+ |
build_wRBF(void) |
233 |
+ |
{ |
234 |
+ |
const char *pref; |
235 |
+ |
int i; |
236 |
+ |
|
237 |
+ |
if (input_orient > 0) { |
238 |
+ |
if (output_orient > 0) |
239 |
+ |
pref = frpref; |
240 |
+ |
else |
241 |
+ |
pref = ftpref; |
242 |
+ |
} else if (output_orient < 0) |
243 |
+ |
pref = brpref; |
244 |
+ |
else |
245 |
+ |
pref = btpref; |
246 |
+ |
|
247 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
248 |
+ |
FVECT ivec; |
249 |
+ |
RBFNODE *rbf; |
250 |
+ |
get_ivector(ivec, i); |
251 |
+ |
if (input_orient < 0) { |
252 |
+ |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; ivec[2] = -ivec[2]; |
253 |
+ |
} |
254 |
+ |
rbf = advect_rbf(ivec, 15000); |
255 |
+ |
if (!plotRBF(tfile_name(pref, dsuffix, i), rbf)) |
256 |
+ |
return(0); |
257 |
+ |
if (rbf) free(rbf); |
258 |
+ |
} |
259 |
+ |
return(1); /* next call frees */ |
260 |
+ |
} |
261 |
+ |
|
262 |
+ |
/* Put out mirror arrow for the given incident vector */ |
263 |
+ |
static void |
264 |
+ |
put_mirror_arrow(const FVECT ivec, int inc_side) |
265 |
+ |
{ |
266 |
+ |
const double arrow_len = 1.2*bsdf_rad; |
267 |
+ |
const double tip_len = 0.2*bsdf_rad; |
268 |
+ |
FVECT origin, refl; |
269 |
+ |
int i; |
270 |
+ |
|
271 |
+ |
for (i = 3; i--; ) origin[i] = ivec[i]*sph_rad; |
272 |
+ |
origin[0] -= inc_side*sph_xoffset; |
273 |
+ |
|
274 |
+ |
refl[0] = 2.*ivec[2]*ivec[0]; |
275 |
+ |
refl[1] = 2.*ivec[2]*ivec[1]; |
276 |
+ |
refl[2] = 2.*ivec[2]*ivec[2] - 1.; |
277 |
+ |
|
278 |
+ |
printf("\n# Mirror arrow\n"); |
279 |
+ |
printf("\narrow_mat cylinder inc_dir\n0\n0\n7"); |
280 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
281 |
+ |
origin[0], origin[1], origin[2]+arrow_len, |
282 |
+ |
origin[0], origin[1], origin[2], |
283 |
+ |
arrow_rad); |
284 |
+ |
printf("\narrow_mat cylinder mir_dir\n0\n0\n7"); |
285 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
286 |
+ |
origin[0], origin[1], origin[2], |
287 |
+ |
origin[0] + arrow_len*refl[0], |
288 |
+ |
origin[1] + arrow_len*refl[1], |
289 |
+ |
origin[2] + arrow_len*refl[2], |
290 |
+ |
arrow_rad); |
291 |
+ |
printf("\narrow_mat cone mir_tip\n0\n0\n8"); |
292 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
293 |
+ |
origin[0] + (arrow_len-.5*tip_len)*refl[0], |
294 |
+ |
origin[1] + (arrow_len-.5*tip_len)*refl[1], |
295 |
+ |
origin[2] + (arrow_len-.5*tip_len)*refl[2], |
296 |
+ |
origin[0] + (arrow_len+.5*tip_len)*refl[0], |
297 |
+ |
origin[1] + (arrow_len+.5*tip_len)*refl[1], |
298 |
+ |
origin[2] + (arrow_len+.5*tip_len)*refl[2], |
299 |
+ |
2.*arrow_rad); |
300 |
+ |
} |
301 |
+ |
|
302 |
+ |
/* Put out transmitted direction arrow for the given incident vector */ |
303 |
+ |
static void |
304 |
+ |
put_trans_arrow(const FVECT ivec, int inc_side) |
305 |
+ |
{ |
306 |
+ |
const double arrow_len = 1.2*bsdf_rad; |
307 |
+ |
const double tip_len = 0.2*bsdf_rad; |
308 |
+ |
FVECT origin; |
309 |
+ |
int i; |
310 |
+ |
|
311 |
+ |
for (i = 3; i--; ) origin[i] = ivec[i]*sph_rad; |
312 |
+ |
origin[0] -= inc_side*sph_xoffset; |
313 |
+ |
|
314 |
+ |
printf("\n# Transmission arrow\n"); |
315 |
+ |
printf("\narrow_mat cylinder trans_dir\n0\n0\n7"); |
316 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
317 |
+ |
origin[0], origin[1], origin[2], |
318 |
+ |
origin[0], origin[1], origin[2]-arrow_len, |
319 |
+ |
arrow_rad); |
320 |
+ |
printf("\narrow_mat cone trans_tip\n0\n0\n8"); |
321 |
+ |
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
322 |
+ |
origin[0], origin[1], origin[2]-arrow_len+.5*tip_len, |
323 |
+ |
origin[0], origin[1], origin[2]-arrow_len-.5*tip_len, |
324 |
+ |
2.*arrow_rad); |
325 |
+ |
} |
326 |
+ |
|
327 |
+ |
/* Compute rotation (x,y,z) => (xp,yp,zp) */ |
328 |
+ |
static int |
329 |
+ |
addrot(char *xf, const FVECT xp, const FVECT yp, const FVECT zp) |
330 |
+ |
{ |
331 |
+ |
int n = 0; |
332 |
+ |
double theta; |
333 |
+ |
|
334 |
+ |
if (yp[2]*yp[2] + zp[2]*zp[2] < 2.*FTINY*FTINY) { |
335 |
+ |
/* Special case for X' along Z-axis */ |
336 |
+ |
theta = -atan2(yp[0], yp[1]); |
337 |
+ |
sprintf(xf, " -ry %f -rz %f", |
338 |
+ |
xp[2] < 0.0 ? 90.0 : -90.0, |
339 |
+ |
theta*(180./PI)); |
340 |
+ |
return(4); |
341 |
+ |
} |
342 |
+ |
theta = atan2(yp[2], zp[2]); |
343 |
+ |
if (!FEQ(theta,0.0)) { |
344 |
+ |
sprintf(xf, " -rx %f", theta*(180./PI)); |
345 |
+ |
while (*xf) ++xf; |
346 |
+ |
n += 2; |
347 |
+ |
} |
348 |
+ |
theta = Asin(-xp[2]); |
349 |
+ |
if (!FEQ(theta,0.0)) { |
350 |
+ |
sprintf(xf, " -ry %f", theta*(180./PI)); |
351 |
+ |
while (*xf) ++xf; |
352 |
+ |
n += 2; |
353 |
+ |
} |
354 |
+ |
theta = atan2(xp[1], xp[0]); |
355 |
+ |
if (!FEQ(theta,0.0)) { |
356 |
+ |
sprintf(xf, " -rz %f", theta*(180./PI)); |
357 |
+ |
/* while (*xf) ++xf; */ |
358 |
+ |
n += 2; |
359 |
+ |
} |
360 |
+ |
return(n); |
361 |
+ |
} |
362 |
+ |
|
363 |
+ |
/* Put out BSDF surfaces */ |
364 |
+ |
static int |
365 |
+ |
put_BSDFs(void) |
366 |
+ |
{ |
367 |
+ |
const double scalef = bsdf_rad/(log10(overall_max) - min_log10); |
368 |
+ |
FVECT ivec; |
369 |
+ |
RREAL vMtx[3][3]; |
370 |
+ |
char *fname; |
371 |
+ |
char cmdbuf[256]; |
372 |
+ |
char xfargs[128]; |
373 |
+ |
int nxfa; |
374 |
+ |
int i; |
375 |
+ |
|
376 |
+ |
printf("\n# Gensurf output corresponding to %d incident directions\n", |
377 |
+ |
NINCIDENT); |
378 |
+ |
|
379 |
+ |
printf("\nvoid glow arrow_glow\n0\n0\n4 1 0 1 0\n"); |
380 |
+ |
printf("\nvoid mixfunc arrow_mat\n4 arrow_glow void .5 .\n0\n0\n"); |
381 |
+ |
|
382 |
+ |
if (front_comp & SDsampR) |
383 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
384 |
+ |
get_ivector(ivec, i); |
385 |
+ |
put_mirror_arrow(ivec, 1); |
386 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
387 |
+ |
ivec[0]*sph_rad - sph_xoffset, |
388 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
389 |
+ |
nxfa = 6; |
390 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
391 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
392 |
+ |
4+nxfa, xfargs); |
393 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
394 |
+ |
SDcompXform(vMtx, ivec, Yaxis); |
395 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
396 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
397 |
+ |
scalef, ivec[0]*sph_rad - sph_xoffset, |
398 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
399 |
+ |
nxfa += 6; |
400 |
+ |
fname = tfile_name(frpref, dsuffix, i); |
401 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -mx -my %s", |
402 |
+ |
frpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
403 |
+ |
xfargs); |
404 |
+ |
if (!run_cmd(cmdbuf)) |
405 |
+ |
return(0); |
406 |
+ |
} |
407 |
+ |
if (front_comp & SDsampT) |
408 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
409 |
+ |
get_ivector(ivec, i); |
410 |
+ |
put_trans_arrow(ivec, 1); |
411 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
412 |
+ |
ivec[0]*sph_rad - sph_xoffset, |
413 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
414 |
+ |
nxfa = 6; |
415 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
416 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
417 |
+ |
4+nxfa, xfargs); |
418 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
419 |
+ |
SDcompXform(vMtx, ivec, Yaxis); |
420 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
421 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
422 |
+ |
scalef, ivec[0]*sph_rad - sph_xoffset, |
423 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
424 |
+ |
nxfa += 6; |
425 |
+ |
fname = tfile_name(ftpref, dsuffix, i); |
426 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -mx -my %s", |
427 |
+ |
ftpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
428 |
+ |
xfargs); |
429 |
+ |
if (!run_cmd(cmdbuf)) |
430 |
+ |
return(0); |
431 |
+ |
} |
432 |
+ |
if (back_comp & SDsampR) |
433 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
434 |
+ |
get_ivector(ivec, i); |
435 |
+ |
put_mirror_arrow(ivec, -1); |
436 |
+ |
fname = tfile_name(brpref, dsuffix, i); |
437 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
438 |
+ |
ivec[0]*sph_rad + sph_xoffset, |
439 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
440 |
+ |
nxfa = 6; |
441 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
442 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
443 |
+ |
4+nxfa, xfargs); |
444 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
445 |
+ |
SDcompXform(vMtx, ivec, Yaxis); |
446 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
447 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
448 |
+ |
scalef, ivec[0]*sph_rad + sph_xoffset, |
449 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
450 |
+ |
nxfa += 6; |
451 |
+ |
fname = tfile_name(brpref, dsuffix, i); |
452 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 -mx -my %s", |
453 |
+ |
brpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
454 |
+ |
xfargs); |
455 |
+ |
if (!run_cmd(cmdbuf)) |
456 |
+ |
return(0); |
457 |
+ |
} |
458 |
+ |
if (back_comp & SDsampT) |
459 |
+ |
for (i = 0; i < NINCIDENT; i++) { |
460 |
+ |
get_ivector(ivec, i); |
461 |
+ |
put_trans_arrow(ivec, -1); |
462 |
+ |
fname = tfile_name(btpref, dsuffix, i); |
463 |
+ |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
464 |
+ |
ivec[0]*sph_rad + sph_xoffset, |
465 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
466 |
+ |
nxfa = 6; |
467 |
+ |
printf("\nvoid colorfunc scale_pat\n"); |
468 |
+ |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
469 |
+ |
4+nxfa, xfargs); |
470 |
+ |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
471 |
+ |
SDcompXform(vMtx, ivec, Yaxis); |
472 |
+ |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
473 |
+ |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
474 |
+ |
scalef, ivec[0]*sph_rad + sph_xoffset, |
475 |
+ |
ivec[1]*sph_rad, ivec[2]*sph_rad); |
476 |
+ |
nxfa += 6; |
477 |
+ |
fname = tfile_name(btpref, dsuffix, i); |
478 |
+ |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 -mx -my %s", |
479 |
+ |
btpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
480 |
+ |
xfargs); |
481 |
+ |
if (!run_cmd(cmdbuf)) |
482 |
+ |
return(0); |
483 |
+ |
} |
484 |
+ |
return(1); |
485 |
+ |
} |
486 |
+ |
|
487 |
+ |
/* Put our hemisphere material */ |
488 |
+ |
static void |
489 |
+ |
put_matBSDF(const char *XMLfile) |
490 |
+ |
{ |
491 |
+ |
const char *curdir = "./"; |
492 |
+ |
|
493 |
+ |
if (!XMLfile) { /* simple material */ |
494 |
+ |
printf("\n# Simplified material because we have no XML input\n"); |
495 |
+ |
printf("\nvoid brightfunc latlong\n2 latlong bsdf2rad.cal\n0\n0\n"); |
496 |
+ |
if ((front_comp|back_comp) & SDsampT) |
497 |
+ |
printf("\nlatlong trans %s\n0\n0\n7 .75 .75 .75 0 0 .5 .8\n", |
498 |
+ |
sph_mat); |
499 |
+ |
else |
500 |
+ |
printf("\nlatlong plastic %s\n0\n0\n5 .5 .5 .5 0 0\n", |
501 |
+ |
sph_mat); |
502 |
+ |
return; |
503 |
+ |
} |
504 |
+ |
switch (XMLfile[0]) { /* avoid RAYPATH search */ |
505 |
+ |
case '.': |
506 |
+ |
CASEDIRSEP: |
507 |
+ |
curdir = ""; |
508 |
+ |
break; |
509 |
+ |
case '\0': |
510 |
+ |
fprintf(stderr, "%s: empty file name in put_matBSDF\n", progname); |
511 |
+ |
exit(1); |
512 |
+ |
break; |
513 |
+ |
} |
514 |
+ |
printf("\n# Actual BSDF material for rendering the hemispheres\n"); |
515 |
+ |
printf("\nvoid BSDF BSDFmat\n6 0 \"%s%s\" 0 1 0 .\n0\n0\n", |
516 |
+ |
curdir, XMLfile); |
517 |
+ |
printf("\nvoid plastic black\n0\n0\n5 0 0 0 0 0\n"); |
518 |
+ |
printf("\nvoid mixfunc %s\n4 BSDFmat black latlong bsdf2rad.cal\n0\n0\n", |
519 |
+ |
sph_mat); |
520 |
+ |
} |
521 |
+ |
|
522 |
+ |
/* Put out overhead parallel light source */ |
523 |
+ |
static void |
524 |
+ |
put_source(void) |
525 |
+ |
{ |
526 |
+ |
printf("\n# Overhead parallel light source\n"); |
527 |
+ |
printf("\nvoid light bright\n0\n0\n3 2000 2000 2000\n"); |
528 |
+ |
printf("\nbright source light\n0\n0\n4 0 0 1 2\n"); |
529 |
+ |
printf("\n# Material used for labels\n"); |
530 |
+ |
printf("\nvoid trans vellum\n0\n0\n7 1 1 1 0 0 .5 0\n"); |
531 |
+ |
} |
532 |
+ |
|
533 |
+ |
/* Put out hemisphere(s) */ |
534 |
+ |
static void |
535 |
+ |
put_hemispheres(void) |
536 |
+ |
{ |
537 |
+ |
printf("\n# Hemisphere(s) for showing BSDF appearance (if XML file)\n"); |
538 |
+ |
printf("\nvoid antimatter anti_sph\n2 void %s\n0\n0\n", sph_mat); |
539 |
+ |
if (front_comp) { |
540 |
+ |
printf("\n%s sphere Front\n0\n0\n4 %f 0 0 %f\n", |
541 |
+ |
sph_mat, -sph_xoffset, sph_rad); |
542 |
+ |
printf("\n!genbox anti_sph sph_eraser %f %f %f | xform -t %f %f %f\n", |
543 |
+ |
2.02*sph_rad, 2.02*sph_rad, 1.02*sph_rad, |
544 |
+ |
-1.01*sph_rad - sph_xoffset, -1.01*sph_rad, -1.01*sph_rad); |
545 |
+ |
printf("\nvoid brighttext front_text\n3 helvet.fnt . FRONT\n0\n"); |
546 |
+ |
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
547 |
+ |
-.22*sph_rad - sph_xoffset, -1.2*sph_rad, |
548 |
+ |
.35/5.*sph_rad, -1.6*.35/5.*sph_rad); |
549 |
+ |
printf("\nfront_text alias front_label_mat vellum\n"); |
550 |
+ |
printf("\nfront_label_mat polygon front_label\n0\n0\n12"); |
551 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
552 |
+ |
-.25*sph_rad - sph_xoffset, -1.1*sph_rad, |
553 |
+ |
-.25*sph_rad - sph_xoffset, (-1.2-1.6*.35/5.-.1)*sph_rad, |
554 |
+ |
.25*sph_rad - sph_xoffset, (-1.2-1.6*.35/5.-.1)*sph_rad, |
555 |
+ |
.25*sph_rad - sph_xoffset, -1.1*sph_rad ); |
556 |
+ |
} |
557 |
+ |
if (back_comp) { |
558 |
+ |
printf("\n%s bubble Back\n0\n0\n4 %f 0 0 %f\n", |
559 |
+ |
sph_mat, sph_xoffset, sph_rad); |
560 |
+ |
printf("\n!genbox anti_sph sph_eraser %f %f %f | xform -t %f %f %f\n", |
561 |
+ |
2.02*sph_rad, 2.02*sph_rad, 1.02*sph_rad, |
562 |
+ |
-1.01*sph_rad + sph_xoffset, -1.01*sph_rad, -1.01*sph_rad); |
563 |
+ |
printf("\nvoid brighttext back_text\n3 helvet.fnt . BACK\n0\n"); |
564 |
+ |
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
565 |
+ |
-.22*sph_rad + sph_xoffset, -1.2*sph_rad, |
566 |
+ |
.35/4.*sph_rad, -1.6*.35/4.*sph_rad); |
567 |
+ |
printf("\nback_text alias back_label_mat vellum\n"); |
568 |
+ |
printf("\nback_label_mat polygon back_label\n0\n0\n12"); |
569 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
570 |
+ |
-.25*sph_rad + sph_xoffset, -1.1*sph_rad, |
571 |
+ |
-.25*sph_rad + sph_xoffset, (-1.2-1.6*.35/4.-.1)*sph_rad, |
572 |
+ |
.25*sph_rad + sph_xoffset, (-1.2-1.6*.35/4.-.1)*sph_rad, |
573 |
+ |
.25*sph_rad + sph_xoffset, -1.1*sph_rad ); |
574 |
+ |
} |
575 |
+ |
} |
576 |
+ |
|
577 |
+ |
/* Put out falsecolor scale and name label */ |
578 |
+ |
static void |
579 |
+ |
put_scale(void) |
580 |
+ |
{ |
581 |
+ |
const double max_log10 = log10(overall_max); |
582 |
+ |
const double leg_width = 2.*.75*(sph_xoffset - sph_rad); |
583 |
+ |
const double leg_height = 2.*sph_rad; |
584 |
+ |
const int text_lines = 6; |
585 |
+ |
const int text_digits = 8; |
586 |
+ |
char fmt[16]; |
587 |
+ |
int i; |
588 |
+ |
|
589 |
+ |
printf("\n# BSDF legend with falsecolor scale\n"); |
590 |
+ |
printf("\nvoid colorfunc lscale\n10 sca_red(Py) sca_grn(Py) sca_blu(Py)"); |
591 |
+ |
printf("\n\tbsdf2rad.cal -s %f -t 0 %f 0\n0\n0\n", leg_height, -.5*leg_height); |
592 |
+ |
sprintf(fmt, "%%.%df", text_digits-3); |
593 |
+ |
for (i = 0; i < text_lines; i++) { |
594 |
+ |
char vbuf[16]; |
595 |
+ |
sprintf(vbuf, fmt, pow(10., (i+.5)/text_lines*(max_log10-min_log10)+min_log10)); |
596 |
+ |
printf("\nlscale brighttext lscale\n"); |
597 |
+ |
printf("3 helvet.fnt . %s\n0\n12\n", vbuf); |
598 |
+ |
printf("\t%f %f 0\n", -.45*leg_width, ((i+.9)/text_lines-.5)*leg_height); |
599 |
+ |
printf("\t%f 0 0\n", .8*leg_width/strlen(vbuf)); |
600 |
+ |
printf("\t0 %f 0\n", -.9/text_lines*leg_height); |
601 |
+ |
printf("\t.01 1 -.1\n"); |
602 |
+ |
} |
603 |
+ |
printf("\nlscale alias legend_mat vellum\n"); |
604 |
+ |
printf("\nlegend_mat polygon legend\n0\n0\n12"); |
605 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
606 |
+ |
-.5*leg_width, .5*leg_height, |
607 |
+ |
-.5*leg_width, -.5*leg_height, |
608 |
+ |
.5*leg_width, -.5*leg_height, |
609 |
+ |
.5*leg_width, .5*leg_height); |
610 |
+ |
printf("\nvoid brighttext BSDFtitle\n3 helvet.fnt . BSDF\n0\n12\n"); |
611 |
+ |
printf("\t%f %f 0\n", -.25*leg_width, .7*leg_height); |
612 |
+ |
printf("\t%f 0 0\n", .4/4.*leg_width); |
613 |
+ |
printf("\t0 %f 0\n", -.1*leg_height); |
614 |
+ |
printf("\t.01 1 -.1\n"); |
615 |
+ |
printf("\nBSDFtitle alias title_mat vellum\n"); |
616 |
+ |
printf("\ntitle_mat polygon title\n0\n0\n12"); |
617 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
618 |
+ |
-.3*leg_width, .75*leg_height, |
619 |
+ |
-.3*leg_width, .55*leg_height, |
620 |
+ |
.3*leg_width, .55*leg_height, |
621 |
+ |
.3*leg_width, .75*leg_height); |
622 |
+ |
if (!bsdf_name[0]) |
623 |
+ |
return; |
624 |
+ |
printf("\nvoid brighttext BSDFname\n3 helvet.fnt . \"%s\"\n0\n12\n", bsdf_name); |
625 |
+ |
printf("\t%f %f 0\n", -.95*leg_width, -.6*leg_height); |
626 |
+ |
printf("\t%f 0 0\n", .4/strlen(bsdf_name)*leg_width); |
627 |
+ |
printf("\t0 %f 0\n", -.1*leg_height); |
628 |
+ |
printf("\t.01 1 -.1\n"); |
629 |
+ |
printf("\nBSDFname alias name_mat vellum\n"); |
630 |
+ |
printf("\nname_mat polygon name\n0\n0\n12"); |
631 |
+ |
printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", |
632 |
+ |
-leg_width, -.55*leg_height, |
633 |
+ |
-leg_width, -.75*leg_height, |
634 |
+ |
leg_width, -.75*leg_height, |
635 |
+ |
leg_width, -.55*leg_height); |
636 |
+ |
} |
637 |
+ |
|
638 |
+ |
/* Convert MGF to Radiance in output */ |
639 |
+ |
static void |
640 |
+ |
convert_mgf(const char *mgfdata) |
641 |
+ |
{ |
642 |
+ |
int len = strlen(mgfdata); |
643 |
+ |
char mgfn[128]; |
644 |
+ |
char radfn[128]; |
645 |
+ |
char cmdbuf[256]; |
646 |
+ |
float xmin, xmax, ymin, ymax, zmin, zmax; |
647 |
+ |
double max_dim; |
648 |
+ |
int fd; |
649 |
|
FILE *fp; |
31 |
– |
RBFNODE *rbf; |
32 |
– |
double bsdf, min_log; |
33 |
– |
FVECT dir; |
34 |
– |
int i, j, n; |
650 |
|
|
651 |
+ |
if (!len) return; |
652 |
+ |
strcpy(mgfn, tfile_name("geom", ".mgf", 0)); |
653 |
+ |
fd = open(mgfn, O_WRONLY|O_CREAT, 0666); |
654 |
+ |
if (fd < 0 || write(fd, mgfdata, len) != len) { |
655 |
+ |
fprintf(stderr, "%s: cannot write file '%s'\n", |
656 |
+ |
progname, mgfn); |
657 |
+ |
return; |
658 |
+ |
} |
659 |
+ |
close(fd); |
660 |
+ |
strcpy(radfn, tfile_name("geom", ".rad", 0)); |
661 |
+ |
sprintf(cmdbuf, "mgf2rad %s > %s", mgfn, radfn); |
662 |
+ |
if (!run_cmd(cmdbuf)) |
663 |
+ |
return; |
664 |
+ |
sprintf(cmdbuf, "getbbox -w -h %s", radfn); |
665 |
+ |
if ((fp = popen(cmdbuf, "r")) == NULL || |
666 |
+ |
fscanf(fp, "%f %f %f %f %f %f", |
667 |
+ |
&xmin, &xmax, &ymin, &ymax, &zmin, &zmax) != 6 |
668 |
+ |
|| pclose(fp) < 0) { |
669 |
+ |
fprintf(stderr, "%s: error reading from command: %s\n", |
670 |
+ |
progname, cmdbuf); |
671 |
+ |
return; |
672 |
+ |
} |
673 |
+ |
max_dim = ymax - ymin; |
674 |
+ |
if (xmax - xmin > max_dim) |
675 |
+ |
max_dim = xmax - xmin; |
676 |
+ |
if (front_comp) { |
677 |
+ |
printf("\n# BSDF system geometry (front view)\n"); |
678 |
+ |
sprintf(cmdbuf, "xform -t %f %f %f -s %f -t %f %f 0 %s", |
679 |
+ |
-.5*(xmin+xmax), -.5*(ymin+ymax), -zmax, |
680 |
+ |
1.5*sph_rad/max_dim, |
681 |
+ |
-sph_xoffset, -2.5*sph_rad, |
682 |
+ |
radfn); |
683 |
+ |
if (!run_cmd(cmdbuf)) |
684 |
+ |
return; |
685 |
+ |
} |
686 |
+ |
if (back_comp) { |
687 |
+ |
printf("\n# BSDF system geometry (back view)\n"); |
688 |
+ |
sprintf(cmdbuf, "xform -t %f %f %f -s %f -ry 180 -t %f %f 0 %s", |
689 |
+ |
-.5*(xmin+xmax), -.5*(ymin+ymax), -zmin, |
690 |
+ |
1.5*sph_rad/max_dim, |
691 |
+ |
sph_xoffset, -2.5*sph_rad, |
692 |
+ |
radfn); |
693 |
+ |
if (!run_cmd(cmdbuf)) |
694 |
+ |
return; |
695 |
+ |
} |
696 |
+ |
} |
697 |
+ |
|
698 |
+ |
/* Check RBF input header line & get minimum BSDF value */ |
699 |
+ |
static int |
700 |
+ |
rbf_headline(char *s, void *p) |
701 |
+ |
{ |
702 |
+ |
char fmt[64]; |
703 |
+ |
|
704 |
+ |
if (formatval(fmt, s)) { |
705 |
+ |
if (strcmp(fmt, BSDFREP_FMT)) |
706 |
+ |
return(-1); |
707 |
+ |
return(0); |
708 |
+ |
} |
709 |
+ |
if (!strncmp(s, "IO_SIDES=", 9)) { |
710 |
+ |
sscanf(s+9, "%d %d", &input_orient, &output_orient); |
711 |
+ |
if (input_orient == output_orient) { |
712 |
+ |
if (input_orient > 0) |
713 |
+ |
front_comp |= SDsampR; |
714 |
+ |
else |
715 |
+ |
back_comp |= SDsampR; |
716 |
+ |
} else if (input_orient > 0) |
717 |
+ |
front_comp |= SDsampT; |
718 |
+ |
else |
719 |
+ |
back_comp |= SDsampT; |
720 |
+ |
return(0); |
721 |
+ |
} |
722 |
+ |
if (!strncmp(s, "BSDFMIN=", 8)) { |
723 |
+ |
sscanf(s+8, "%lf", &bsdf_min); |
724 |
+ |
if (bsdf_min < overall_min) |
725 |
+ |
overall_min = bsdf_min; |
726 |
+ |
return(0); |
727 |
+ |
} |
728 |
+ |
return(0); |
729 |
+ |
} |
730 |
+ |
|
731 |
+ |
/* Produce a Radiance model plotting the given BSDF representation */ |
732 |
+ |
int |
733 |
+ |
main(int argc, char *argv[]) |
734 |
+ |
{ |
735 |
+ |
int inpXML = -1; |
736 |
+ |
SDData myBSDF; |
737 |
+ |
int n; |
738 |
+ |
/* check arguments */ |
739 |
|
progname = argv[0]; |
740 |
< |
if (argc < 4) { |
741 |
< |
fprintf(stderr, "Usage: %s bsdf.sir theta1 phi1 .. > output.rad\n", argv[0]); |
742 |
< |
return(1); |
740 |
> |
if (argc > 1 && (n = strlen(argv[1])-4) > 0) { |
741 |
> |
if (!strcasecmp(argv[1]+n, ".xml")) |
742 |
> |
inpXML = 1; |
743 |
> |
else if (!strcasecmp(argv[1]+n, ".sir")) |
744 |
> |
inpXML = 0; |
745 |
|
} |
746 |
< |
/* load input */ |
747 |
< |
if ((fp = fopen(argv[1], "rb")) == NULL) { |
748 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
44 |
< |
argv[0], argv[1]); |
746 |
> |
if (inpXML < 0 || inpXML & (argc > 2)) { |
747 |
> |
fprintf(stderr, "Usage: %s bsdf.xml > output.rad\n", progname); |
748 |
> |
fprintf(stderr, " Or: %s hemi1.sir hemi2.sir .. > output.rad\n", progname); |
749 |
|
return(1); |
750 |
|
} |
751 |
< |
if (!load_bsdf_rep(fp)) |
752 |
< |
return(1); |
753 |
< |
fclose(fp); |
754 |
< |
min_log = log(bsdf_min*.5); |
755 |
< |
/* output surface(s) */ |
756 |
< |
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); |
751 |
> |
fputs("# ", stdout); /* copy our command */ |
752 |
> |
printargs(argc, argv, stdout); |
753 |
> |
/* evaluate BSDF */ |
754 |
> |
if (inpXML) { |
755 |
> |
SDclearBSDF(&myBSDF, argv[1]); |
756 |
> |
if (SDreportError(SDloadFile(&myBSDF, argv[1]), stderr)) |
757 |
|
return(1); |
758 |
+ |
if (myBSDF.rf != NULL) front_comp |= SDsampR; |
759 |
+ |
if (myBSDF.tf != NULL) front_comp |= SDsampT; |
760 |
+ |
if (myBSDF.rb != NULL) back_comp |= SDsampR; |
761 |
+ |
if (myBSDF.tb != NULL) back_comp |= SDsampT; |
762 |
+ |
if (!front_comp & !back_comp) { |
763 |
+ |
fprintf(stderr, "%s: nothing to plot in '%s'\n", |
764 |
+ |
progname, argv[1]); |
765 |
+ |
return(1); |
766 |
|
} |
767 |
< |
dir[2] = sin((M_PI/180.)*atof(argv[2*n+2])); |
768 |
< |
dir[0] = dir[2] * cos((M_PI/180.)*atof(argv[2*n+3])); |
769 |
< |
dir[1] = dir[2] * sin((M_PI/180.)*atof(argv[2*n+3])); |
770 |
< |
dir[2] = input_orient * sqrt(1. - dir[2]*dir[2]); |
771 |
< |
fprintf(stderr, "Computing DSF for incident direction (%.1f,%.1f)\n", |
772 |
< |
get_theta180(dir), get_phi360(dir)); |
773 |
< |
rbf = advect_rbf(dir, 15000); |
774 |
< |
if (rbf == NULL) |
775 |
< |
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)) |
767 |
> |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
768 |
> |
overall_min = myBSDF.rLambFront.cieY/PI; |
769 |
> |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
770 |
> |
overall_min = myBSDF.rLambBack.cieY/PI; |
771 |
> |
if ((front_comp|back_comp) & SDsampT && |
772 |
> |
myBSDF.tLamb.cieY < overall_min*PI) |
773 |
> |
overall_min = myBSDF.tLamb.cieY/PI; |
774 |
> |
set_minlog(); |
775 |
> |
if (!build_wBSDF(&myBSDF)) |
776 |
|
return(1); |
777 |
+ |
if (myBSDF.matn[0]) |
778 |
+ |
strcpy(bsdf_name, myBSDF.matn); |
779 |
+ |
else |
780 |
+ |
strcpy(bsdf_name, myBSDF.name); |
781 |
+ |
strcpy(bsdf_manuf, myBSDF.makr); |
782 |
+ |
put_matBSDF(argv[1]); |
783 |
+ |
} else { |
784 |
+ |
FILE *fp; |
785 |
+ |
for (n = 1; n < argc; n++) { |
786 |
+ |
fp = fopen(argv[n], "rb"); |
787 |
+ |
if (fp == NULL) { |
788 |
+ |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
789 |
+ |
progname, argv[n]); |
790 |
+ |
return(1); |
791 |
+ |
} |
792 |
+ |
if (getheader(fp, rbf_headline, NULL) < 0) { |
793 |
+ |
fprintf(stderr, "%s: bad BSDF interpolant '%s'\n", |
794 |
+ |
progname, argv[n]); |
795 |
+ |
return(1); |
796 |
+ |
} |
797 |
+ |
fclose(fp); |
798 |
+ |
} |
799 |
+ |
set_minlog(); |
800 |
+ |
for (n = 1; n < argc; n++) { |
801 |
+ |
fp = fopen(argv[n], "rb"); |
802 |
+ |
if (!load_bsdf_rep(fp)) |
803 |
+ |
return(1); |
804 |
+ |
fclose(fp); |
805 |
+ |
if (!build_wRBF()) |
806 |
+ |
return(1); |
807 |
+ |
} |
808 |
+ |
put_matBSDF(NULL); |
809 |
|
} |
810 |
+ |
put_source(); /* before hemispheres & labels */ |
811 |
+ |
put_hemispheres(); |
812 |
+ |
put_scale(); |
813 |
+ |
if (inpXML && myBSDF.mgf) |
814 |
+ |
convert_mgf(myBSDF.mgf); |
815 |
+ |
if (!put_BSDFs()) |
816 |
+ |
return(1); |
817 |
+ |
cleanup_tmp(); |
818 |
|
return(0); |
819 |
|
} |