270 |
|
|
271 |
|
/* Put out mirror arrow for the given incident vector */ |
272 |
|
static void |
273 |
< |
put_mirror_arrow(const FVECT ivec, int inc_side) |
273 |
> |
put_mirror_arrow(const FVECT origin, const FVECT nrm) |
274 |
|
{ |
275 |
|
const double arrow_len = 1.2*bsdf_rad; |
276 |
|
const double tip_len = 0.2*bsdf_rad; |
277 |
< |
FVECT origin, refl; |
277 |
> |
FVECT refl; |
278 |
|
int i; |
279 |
|
|
280 |
< |
cvt_sposition(origin, ivec, inc_side); |
280 |
> |
refl[0] = 2.*nrm[2]*nrm[0]; |
281 |
> |
refl[1] = 2.*nrm[2]*nrm[1]; |
282 |
> |
refl[2] = 2.*nrm[2]*nrm[2] - 1.; |
283 |
|
|
282 |
– |
refl[0] = -2.*ivec[2]*ivec[0]; |
283 |
– |
refl[1] = -2.*ivec[2]*ivec[1]; |
284 |
– |
refl[2] = 2.*ivec[2]*ivec[2] - 1.; |
285 |
– |
|
284 |
|
printf("\n# Mirror arrow\n"); |
285 |
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printf("\narrow_mat cylinder inc_dir\n0\n0\n7"); |
286 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
307 |
|
|
308 |
|
/* Put out transmitted direction arrow for the given incident vector */ |
309 |
|
static void |
310 |
< |
put_trans_arrow(const FVECT ivec, int inc_side) |
310 |
> |
put_trans_arrow(const FVECT origin) |
311 |
|
{ |
312 |
|
const double arrow_len = 1.2*bsdf_rad; |
313 |
|
const double tip_len = 0.2*bsdf_rad; |
316 |
– |
FVECT origin; |
314 |
|
int i; |
315 |
|
|
319 |
– |
cvt_sposition(origin, ivec, inc_side); |
320 |
– |
|
316 |
|
printf("\n# Transmission arrow\n"); |
317 |
|
printf("\narrow_mat cylinder trans_dir\n0\n0\n7"); |
318 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
367 |
|
put_BSDFs(void) |
368 |
|
{ |
369 |
|
const double scalef = bsdf_rad/(log10(overall_max) - min_log10); |
370 |
< |
FVECT ivec, sorg, upv; |
370 |
> |
FVECT ivec, sorg, nrm, upv; |
371 |
|
RREAL vMtx[3][3]; |
372 |
|
char *fname; |
373 |
|
char cmdbuf[256]; |
374 |
< |
char xfargs[128]; |
375 |
< |
int nxfa; |
374 |
> |
char rotargs[64]; |
375 |
> |
int nrota; |
376 |
|
int i; |
377 |
|
|
378 |
|
printf("\n# Gensurf output corresponding to %d incident directions\n", |
382 |
|
printf("\nvoid mixfunc arrow_mat\n4 arrow_glow void 0.25 .\n0\n0\n"); |
383 |
|
|
384 |
|
if (front_comp & SDsampR) /* front reflection */ |
385 |
< |
for (i = 0; i < NINCIDENT; i++) { |
386 |
< |
get_ivector(ivec, i); |
387 |
< |
put_mirror_arrow(ivec, 1); |
385 |
> |
for (i = 0; i < NINCIDENT; i++) { |
386 |
> |
get_ivector(ivec, i); |
387 |
> |
nrm[0] = -ivec[0]; nrm[1] = -ivec[1]; nrm[2] = ivec[2]; |
388 |
> |
upv[0] = nrm[0]*nrm[1]*(nrm[2] - 1.); |
389 |
> |
upv[1] = nrm[0]*nrm[0] + nrm[1]*nrm[1]*nrm[2]; |
390 |
> |
upv[2] = -nrm[1]*(nrm[0]*nrm[0] + nrm[1]*nrm[1]); |
391 |
> |
if (SDcompXform(vMtx, nrm, upv) != SDEnone) |
392 |
> |
continue; |
393 |
> |
nrota = addrot(rotargs, vMtx[0], vMtx[1], vMtx[2]); |
394 |
> |
if (front_comp) { |
395 |
|
cvt_sposition(sorg, ivec, 1); |
394 |
– |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
395 |
– |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
396 |
– |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
397 |
– |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
398 |
– |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
399 |
– |
sorg[0], sorg[1], sorg[2]); |
400 |
– |
nxfa = 6; |
396 |
|
printf("\nvoid colorfunc scale_pat\n"); |
397 |
< |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
398 |
< |
4+nxfa, xfargs); |
397 |
> |
printf("10 bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n"); |
398 |
> |
printf("\t-s %f -t %f %f %f\n0\n0\n", |
399 |
> |
bsdf_rad, sorg[0], sorg[1], sorg[2]); |
400 |
|
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
401 |
< |
if (SDcompXform(vMtx, ivec, upv) != SDEnone) |
402 |
< |
continue; |
403 |
< |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
408 |
< |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
409 |
< |
scalef, sorg[0], sorg[1], sorg[2]); |
410 |
< |
nxfa += 6; |
401 |
> |
} |
402 |
> |
if (front_comp & SDsampR) { |
403 |
> |
put_mirror_arrow(sorg, nrm); |
404 |
|
fname = tfile_name(frpref, dsuffix, i); |
405 |
< |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform %s", |
405 |
> |
sprintf(cmdbuf, |
406 |
> |
"gensurf scale_mat %s%d %s %s %s %d %d | xform %s -s %f -t %f %f %f", |
407 |
|
frpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
408 |
< |
xfargs); |
408 |
> |
rotargs, scalef, sorg[0], sorg[1], sorg[2]); |
409 |
|
if (!run_cmd(cmdbuf)) |
410 |
|
return(0); |
411 |
|
} |
412 |
< |
if (front_comp & SDsampT) /* front transmission */ |
413 |
< |
for (i = 0; i < NINCIDENT; i++) { |
420 |
< |
get_ivector(ivec, i); |
421 |
< |
put_trans_arrow(ivec, 1); |
422 |
< |
cvt_sposition(sorg, ivec, 1); |
423 |
< |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
424 |
< |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
425 |
< |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
426 |
< |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
427 |
< |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
428 |
< |
sorg[0], sorg[1], sorg[2]); |
429 |
< |
nxfa = 6; |
430 |
< |
printf("\nvoid colorfunc scale_pat\n"); |
431 |
< |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
432 |
< |
4+nxfa, xfargs); |
433 |
< |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
434 |
< |
if (SDcompXform(vMtx, ivec, upv) != SDEnone) |
435 |
< |
continue; |
436 |
< |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
437 |
< |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
438 |
< |
scalef, sorg[0], sorg[1], sorg[2]); |
439 |
< |
nxfa += 6; |
412 |
> |
if (front_comp & SDsampT) { |
413 |
> |
put_trans_arrow(sorg); |
414 |
|
fname = tfile_name(ftpref, dsuffix, i); |
415 |
< |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I %s", |
415 |
> |
sprintf(cmdbuf, |
416 |
> |
"gensurf scale_mat %s%d %s %s %s %d %d | xform -I %s -s %f -t %f %f %f", |
417 |
|
ftpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
418 |
< |
xfargs); |
418 |
> |
rotargs, scalef, sorg[0], sorg[1], sorg[2]); |
419 |
|
if (!run_cmd(cmdbuf)) |
420 |
|
return(0); |
421 |
|
} |
422 |
< |
if (back_comp & SDsampR) /* rear reflection */ |
448 |
< |
for (i = 0; i < NINCIDENT; i++) { |
449 |
< |
get_ivector(ivec, i); |
450 |
< |
put_mirror_arrow(ivec, -1); |
422 |
> |
if (back_comp) { |
423 |
|
cvt_sposition(sorg, ivec, -1); |
452 |
– |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
453 |
– |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
454 |
– |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
455 |
– |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
456 |
– |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
457 |
– |
sorg[0], sorg[1], sorg[2]); |
458 |
– |
nxfa = 6; |
424 |
|
printf("\nvoid colorfunc scale_pat\n"); |
425 |
< |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
426 |
< |
4+nxfa, xfargs); |
425 |
> |
printf("10 bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n"); |
426 |
> |
printf("\t-s %f -t %f %f %f\n0\n0\n", |
427 |
> |
bsdf_rad, sorg[0], sorg[1], sorg[2]); |
428 |
|
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
429 |
< |
if (SDcompXform(vMtx, ivec, upv) != SDEnone) |
430 |
< |
continue; |
431 |
< |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
466 |
< |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
467 |
< |
scalef, sorg[0], sorg[1], sorg[2]); |
468 |
< |
nxfa += 6; |
429 |
> |
} |
430 |
> |
if (back_comp & SDsampR) { |
431 |
> |
put_mirror_arrow(sorg, nrm); |
432 |
|
fname = tfile_name(brpref, dsuffix, i); |
433 |
< |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 %s", |
433 |
> |
sprintf(cmdbuf, |
434 |
> |
"gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 %s -s %f -t %f %f %f", |
435 |
|
brpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
436 |
< |
xfargs); |
436 |
> |
rotargs, scalef, sorg[0], sorg[1], sorg[2]); |
437 |
|
if (!run_cmd(cmdbuf)) |
438 |
|
return(0); |
439 |
|
} |
440 |
< |
if (back_comp & SDsampT) /* rear transmission */ |
441 |
< |
for (i = 0; i < NINCIDENT; i++) { |
478 |
< |
get_ivector(ivec, i); |
479 |
< |
put_trans_arrow(ivec, -1); |
480 |
< |
cvt_sposition(sorg, ivec, -1); |
481 |
< |
ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; /* normal */ |
482 |
< |
upv[0] = ivec[0]*ivec[1]*(ivec[2] - 1.); |
483 |
< |
upv[1] = ivec[0]*ivec[0] + ivec[1]*ivec[1]*ivec[2]; |
484 |
< |
upv[2] = -ivec[1]*(ivec[0]*ivec[0] + ivec[1]*ivec[1]); |
485 |
< |
sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, |
486 |
< |
sorg[0], sorg[1], sorg[2]); |
487 |
< |
nxfa = 6; |
488 |
< |
printf("\nvoid colorfunc scale_pat\n"); |
489 |
< |
printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", |
490 |
< |
4+nxfa, xfargs); |
491 |
< |
printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); |
492 |
< |
if (SDcompXform(vMtx, ivec, upv) != SDEnone) |
493 |
< |
continue; |
494 |
< |
nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); |
495 |
< |
sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", |
496 |
< |
scalef, sorg[0], sorg[1], sorg[2]); |
497 |
< |
nxfa += 6; |
440 |
> |
if (back_comp & SDsampT) { |
441 |
> |
put_trans_arrow(sorg); |
442 |
|
fname = tfile_name(btpref, dsuffix, i); |
443 |
< |
sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 %s", |
443 |
> |
sprintf(cmdbuf, |
444 |
> |
"gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 %s -s %f -t %f %f %f", |
445 |
|
btpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, |
446 |
< |
xfargs); |
446 |
> |
rotargs, scalef, sorg[0], sorg[1], sorg[2]); |
447 |
|
if (!run_cmd(cmdbuf)) |
448 |
|
return(0); |
449 |
|
} |
450 |
+ |
} |
451 |
|
return(1); |
452 |
|
} |
453 |
|
|