26 |
|
|
27 |
|
LUTAB rdispatch = LU_SINIT(NULL,NULL); /* function dispatch table */ |
28 |
|
|
29 |
< |
char curmat[80]; /* current material */ |
29 |
> |
char curmat[80]; /* current material */ |
30 |
> |
char curobj[128] = "Untitled"; /* current object name */ |
31 |
|
|
32 |
< |
double unit_mult = 1.; /* units multiplier */ |
32 |
> |
double unit_mult = 1.; /* units multiplier */ |
33 |
|
|
34 |
+ |
#define hasmult (unit_mult < .999 || unit_mult > 1.001) |
35 |
|
|
36 |
+ |
|
37 |
|
main(argc, argv) |
38 |
|
int argc; |
39 |
|
char **argv; |
88 |
|
register int c; |
89 |
|
|
90 |
|
if (inp == NULL) { |
91 |
< |
inp = "the standard input"; |
91 |
> |
inp = "standard input"; |
92 |
|
fp = stdin; |
93 |
|
} else if (inp[0] == '!') { |
94 |
|
if ((fp = popen(inp+1, "r")) == NULL) { |
212 |
|
{ |
213 |
|
if (!strcmp(id, curmat)) /* already set? */ |
214 |
|
return; |
215 |
+ |
if (!strcmp(id, VOIDID)) /* cannot set */ |
216 |
+ |
return; |
217 |
|
printf("m %s\n", id); |
218 |
|
strcpy(curmat, id); |
219 |
|
} |
220 |
|
|
221 |
|
|
222 |
+ |
setobj(id) /* set object name to this one */ |
223 |
+ |
char *id; |
224 |
+ |
{ |
225 |
+ |
register char *cp, *cp2; |
226 |
+ |
char *end = NULL; |
227 |
+ |
int diff = 0; |
228 |
+ |
/* use all but final suffix */ |
229 |
+ |
for (cp = id; *cp; cp++) |
230 |
+ |
if (*cp == '.') |
231 |
+ |
end = cp; |
232 |
+ |
if (end == NULL) |
233 |
+ |
end = cp; |
234 |
+ |
/* copy to current object */ |
235 |
+ |
for (cp = id, cp2 = curobj; cp < end; *cp2++ = *cp++) |
236 |
+ |
diff += *cp != *cp2; |
237 |
+ |
if (!diff && !*cp2) |
238 |
+ |
return; |
239 |
+ |
*cp2 = '\0'; |
240 |
+ |
fputs("o\no ", stdout); |
241 |
+ |
puts(curobj); |
242 |
+ |
} |
243 |
+ |
|
244 |
+ |
|
245 |
|
init() /* initialize dispatch table and output */ |
246 |
|
{ |
247 |
|
lu_init(&rdispatch, 22); |
267 |
|
add2dispatch("glow", o_light); |
268 |
|
add2dispatch("illum", o_illum); |
269 |
|
puts("# The following was converted from Radiance scene input"); |
270 |
< |
if (unit_mult < .999 || unit_mult > 1.001) |
270 |
> |
if (hasmult) |
271 |
|
printf("xf -s %.4e\n", unit_mult); |
272 |
+ |
printf("o %s\n", curobj); |
273 |
|
} |
274 |
|
|
275 |
|
|
276 |
|
uninit() /* mark end of MGF file */ |
277 |
|
{ |
278 |
< |
if (unit_mult < .999 || unit_mult > 1.001) |
278 |
> |
puts("o"); |
279 |
> |
if (hasmult) |
280 |
|
puts("xf"); |
281 |
|
puts("# End of data converted from Radiance scene input"); |
282 |
|
lu_done(&rdispatch); |
301 |
|
} |
302 |
|
|
303 |
|
|
304 |
+ |
/* |
305 |
+ |
* Stuff for tracking and reusing vertices: |
306 |
+ |
*/ |
307 |
+ |
|
308 |
|
char VKFMT[] = "%+1.9e %+1.9e %+1.9e"; |
309 |
|
#define VKLEN 64 |
310 |
|
|
323 |
|
|
324 |
|
|
325 |
|
char * |
326 |
< |
getvertid(vp) /* get/set vertex ID for this point */ |
326 |
> |
getvertid(vname, vp) /* get/set vertex ID for this point */ |
327 |
> |
char *vname; |
328 |
|
FVECT vp; |
329 |
|
{ |
295 |
– |
static char vname[6]; |
330 |
|
char vkey[VKLEN]; |
331 |
|
register LUENT *lp; |
332 |
|
register int i, vndx; |
353 |
|
mkvkey(vkey, vert[vndx].p); |
354 |
|
lu_delete(&vertab, vkey); |
355 |
|
} |
356 |
< |
vert[vndx].lused = clock; /* assign it */ |
357 |
< |
VCOPY(vert[vndx].p, vp); |
324 |
< |
printf("v v%d =\np %.15g %.15g %.15g\n", /* print it */ |
356 |
> |
VCOPY(vert[vndx].p, vp); /* assign it */ |
357 |
> |
printf("v v%d =\n\tp %.15g %.15g %.15g\n", /* print it */ |
358 |
|
vndx, vp[0], vp[1], vp[2]); |
359 |
|
lp->data = (char *)&vert[vndx]; /* set it */ |
360 |
|
} else |
361 |
|
vndx = (struct vert *)lp->data - vert; |
362 |
+ |
vert[vndx].lused = clock; /* record this use */ |
363 |
|
sprintf(vname, "v%d", vndx); |
364 |
|
return(vname); |
365 |
|
memerr: |
374 |
|
FUNARGS *fa; |
375 |
|
{ |
376 |
|
char entbuf[512]; |
377 |
< |
register char *cp1, *cp2; |
377 |
> |
register char *cp; |
378 |
|
register int i; |
379 |
|
|
380 |
|
if (fa->nfargs < 9 | fa->nfargs % 3) |
381 |
|
return(-1); |
382 |
|
setmat(mod); |
383 |
< |
printf("o %s\n", id); |
384 |
< |
cp1 = entbuf; |
385 |
< |
*cp1++ = 'f'; |
383 |
> |
setobj(id); |
384 |
> |
cp = entbuf; |
385 |
> |
*cp++ = 'f'; |
386 |
|
for (i = 0; i < fa->nfargs; i += 3) { |
387 |
< |
cp2 = getvertid(fa->farg + i); |
388 |
< |
*cp1++ = ' '; |
389 |
< |
while ((*cp1 = *cp2++)) |
390 |
< |
cp1++; |
387 |
> |
*cp++ = ' '; |
388 |
> |
getvertid(cp, fa->farg + i); |
389 |
> |
while (*cp) |
390 |
> |
cp++; |
391 |
|
} |
392 |
|
puts(entbuf); |
359 |
– |
puts("o"); |
393 |
|
return(0); |
394 |
|
} |
395 |
|
|
399 |
|
char *mod, *typ, *id; |
400 |
|
register FUNARGS *fa; |
401 |
|
{ |
402 |
+ |
char v1[6], v2[6]; |
403 |
+ |
|
404 |
|
if (fa->nfargs != 8) |
405 |
|
return(-1); |
406 |
|
setmat(mod); |
407 |
< |
printf("o %s\n", id); |
408 |
< |
printf("v cv1 =\np %.12g %.12g %.12g\n", |
409 |
< |
fa->farg[0], fa->farg[1], fa->farg[2]); |
375 |
< |
printf("v cv2 =\np %.12g %.12g %.12g\n", |
376 |
< |
fa->farg[3], fa->farg[4], fa->farg[5]); |
407 |
> |
setobj(id); |
408 |
> |
getvertid(v1, fa->farg); |
409 |
> |
getvertid(v2, fa->farg + 3); |
410 |
|
if (typ[1] == 'u') /* cup -> inverted cone */ |
411 |
< |
printf("cone cv1 %.12g cv2 %.12g\n", |
412 |
< |
-fa->farg[6], -fa->farg[7]); |
411 |
> |
printf("cone %s %.12g %s %.12g\n", |
412 |
> |
v1, -fa->farg[6], v2, -fa->farg[7]); |
413 |
|
else |
414 |
< |
printf("cone cv1 %.12g cv2 %.12g\n", |
415 |
< |
fa->farg[6], fa->farg[7]); |
383 |
< |
puts("o"); |
414 |
> |
printf("cone %s %.12g %s %.12g\n", |
415 |
> |
v1, fa->farg[6], v2, fa->farg[7]); |
416 |
|
return(0); |
417 |
|
} |
418 |
|
|
422 |
|
char *mod, *typ, *id; |
423 |
|
register FUNARGS *fa; |
424 |
|
{ |
425 |
+ |
char cent[6]; |
426 |
+ |
|
427 |
|
if (fa->nfargs != 4) |
428 |
|
return(-1); |
429 |
|
setmat(mod); |
430 |
< |
printf("o %s\n", id); |
431 |
< |
printf("v cent =\np %.12g %.12g %.12g\n", |
432 |
< |
fa->farg[0], fa->farg[1], fa->farg[2]); |
399 |
< |
printf("sph cent %.12g\n", typ[0]=='b' ? -fa->farg[3] : fa->farg[3]); |
400 |
< |
puts("o"); |
430 |
> |
setobj(id); |
431 |
> |
printf("sph %s %.12g\n", getvertid(cent, fa->farg), |
432 |
> |
typ[0]=='b' ? -fa->farg[3] : fa->farg[3]); |
433 |
|
return(0); |
434 |
|
} |
435 |
|
|
439 |
|
char *mod, *typ, *id; |
440 |
|
register FUNARGS *fa; |
441 |
|
{ |
442 |
+ |
char v1[6], v2[6]; |
443 |
+ |
|
444 |
|
if (fa->nfargs != 7) |
445 |
|
return(-1); |
446 |
|
setmat(mod); |
447 |
< |
printf("o %s\n", id); |
448 |
< |
printf("v cv1 =\np %.12g %.12g %.12g\n", |
449 |
< |
fa->farg[0], fa->farg[1], fa->farg[2]); |
450 |
< |
printf("v cv2 =\np %.12g %.12g %.12g\n", |
451 |
< |
fa->farg[3], fa->farg[4], fa->farg[5]); |
418 |
< |
printf("cyl cv1 %.12g cv2\n", |
419 |
< |
typ[0]=='t' ? -fa->farg[6] : fa->farg[6]); |
420 |
< |
puts("o"); |
447 |
> |
setobj(id); |
448 |
> |
getvertid(v1, fa->farg); |
449 |
> |
getvertid(v2, fa->farg + 3); |
450 |
> |
printf("cyl %s %.12g %s\n", v1, |
451 |
> |
typ[0]=='t' ? -fa->farg[6] : fa->farg[6], v2); |
452 |
|
return(0); |
453 |
|
} |
454 |
|
|
461 |
|
if (fa->nfargs != 8) |
462 |
|
return(-1); |
463 |
|
setmat(mod); |
464 |
< |
printf("o %s\n", id); |
465 |
< |
printf("v cent =\np %.12g %.12g %.12g\n", |
464 |
> |
setobj(id); |
465 |
> |
printf("v cent =\n\tp %.12g %.12g %.12g\n", |
466 |
|
fa->farg[0], fa->farg[1], fa->farg[2]); |
467 |
< |
printf("n %.12g %.12g %.12g\n", |
467 |
> |
printf("\tn %.12g %.12g %.12g\n", |
468 |
|
fa->farg[3], fa->farg[4], fa->farg[5]); |
469 |
|
if (fa->farg[6] < fa->farg[7]) |
470 |
|
printf("ring cent %.12g %.12g\n", |
472 |
|
else |
473 |
|
printf("ring cent %.12g %.12g\n", |
474 |
|
fa->farg[7], fa->farg[6]); |
444 |
– |
puts("o"); |
475 |
|
return(0); |
476 |
|
} |
477 |
|
|
481 |
|
char *mod, *typ, *id; |
482 |
|
FUNARGS *fa; |
483 |
|
{ |
484 |
< |
return(0); /* this is too damned difficult! */ |
484 |
> |
register int i; |
485 |
> |
register char *cp; |
486 |
> |
char *start = NULL, *end = NULL; |
487 |
> |
/* |
488 |
> |
* We don't really know how to do this, so we just create |
489 |
> |
* a reference to an undefined MGF file and it's the user's |
490 |
> |
* responsibility to create this file and put the appropriate |
491 |
> |
* stuff into it. |
492 |
> |
*/ |
493 |
> |
if (fa->nsargs < 1) |
494 |
> |
return(-1); |
495 |
> |
setmat(mod); /* only works if surfaces are void */ |
496 |
> |
setobj(id); |
497 |
> |
for (cp = fa->sarg[0]; *cp; cp++) /* construct MGF file name */ |
498 |
> |
if (*cp == '/') |
499 |
> |
start = cp+1; |
500 |
> |
else if (*cp == '.') |
501 |
> |
end = cp; |
502 |
> |
if (start == NULL) |
503 |
> |
start = fa->sarg[0]; |
504 |
> |
if (end == NULL || start >= end) |
505 |
> |
end = cp; |
506 |
> |
fputs("i ", stdout); /* print include entity */ |
507 |
> |
for (cp = start; cp < end; cp++) |
508 |
> |
putchar(*cp); |
509 |
> |
fputs(".mgf", stdout); /* add MGF suffix */ |
510 |
> |
for (i = 1; i < fa->nsargs; i++) { /* add transform */ |
511 |
> |
putchar(' '); |
512 |
> |
fputs(fa->sarg[i], stdout); |
513 |
> |
} |
514 |
> |
putchar('\n'); |
515 |
> |
return(0); |
516 |
|
} |
517 |
|
|
518 |
|
|
536 |
|
} |
537 |
|
/* else create invisible material */ |
538 |
|
newmat(id, NULL); |
539 |
< |
puts("ts 1 0"); |
539 |
> |
puts("\tts 1 0"); |
540 |
|
return(0); |
541 |
|
} |
542 |
|
|
554 |
|
newmat(id, NULL); |
555 |
|
rrgb[0] = fa->farg[0]; rrgb[1] = fa->farg[1]; rrgb[2] = fa->farg[2]; |
556 |
|
rgb_cie(cxyz, rrgb); |
557 |
< |
puts("c"); /* put diffuse component */ |
557 |
> |
puts("\tc"); /* put diffuse component */ |
558 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
559 |
|
if (d > FTINY) |
560 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
561 |
< |
printf("rd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
562 |
< |
puts("c"); /* put specular component */ |
563 |
< |
printf("rs %.4f %.4f\n", fa->farg[3], |
564 |
< |
typ[7]=='2' ? .5*(fa->farg[4] + fa->farg[5]) : |
565 |
< |
fa->farg[4]); |
560 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
561 |
> |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
562 |
> |
if (fa->farg[3] > FTINY) { /* put specular component */ |
563 |
> |
puts("\tc"); |
564 |
> |
printf("\trs %.4f %.4f\n", fa->farg[3], |
565 |
> |
typ[7]=='2' ? .5*(fa->farg[4] + fa->farg[5]) : |
566 |
> |
fa->farg[4]); |
567 |
> |
} |
568 |
|
return(0); |
569 |
|
} |
570 |
|
|
582 |
|
newmat(id, NULL); |
583 |
|
rrgb[0] = fa->farg[0]; rrgb[1] = fa->farg[1]; rrgb[2] = fa->farg[2]; |
584 |
|
rgb_cie(cxyz, rrgb); |
585 |
< |
puts("c"); /* put diffuse component */ |
585 |
> |
puts("\tc"); /* put diffuse component */ |
586 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
587 |
|
if (d > FTINY) |
588 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
589 |
< |
printf("rd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
588 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
589 |
> |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])); |
590 |
|
/* put specular component */ |
591 |
< |
printf("rs %.4f %.4f\n", cxyz[1]*fa->farg[3], |
591 |
> |
printf("\trs %.4f %.4f\n", cxyz[1]*fa->farg[3], |
592 |
|
typ[5]=='2' ? .5*(fa->farg[4] + fa->farg[5]) : |
593 |
|
fa->farg[4]); |
594 |
|
return(0); |
612 |
|
F = (1. - nrfr)/(1. + nrfr); /* use normal incidence */ |
613 |
|
F *= F; |
614 |
|
for (i = 0; i < 3; i++) { |
615 |
< |
rrgb[i] = (1. - F)*(1. - F)/(1. - F*F*fa->farg[i]*fa->farg[i]); |
553 |
< |
trgb[i] = F * (1. + (1. - 2.*F)*fa->farg[i]) / |
615 |
> |
trgb[i] = fa->farg[i] * (1. - F)*(1. - F) / |
616 |
|
(1. - F*F*fa->farg[i]*fa->farg[i]); |
617 |
+ |
rrgb[i] = F * (1. + (1. - 2.*F)*fa->farg[i]) / |
618 |
+ |
(1. - F*F*fa->farg[i]*fa->farg[i]); |
619 |
|
} |
620 |
|
rgb_cie(cxyz, rrgb); /* put reflected component */ |
621 |
< |
puts("c"); |
621 |
> |
puts("\tc"); |
622 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
623 |
|
if (d > FTINY) |
624 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
625 |
< |
printf("rs %.4f 0\n", cxyz[1]); |
624 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
625 |
> |
printf("\trs %.4f 0\n", cxyz[1]); |
626 |
|
rgb_cie(cxyz, trgb); /* put transmitted component */ |
627 |
< |
puts("c"); |
627 |
> |
puts("\tc"); |
628 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
629 |
|
if (d > FTINY) |
630 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
631 |
< |
printf("ts %.4f 0\n", cxyz[1]); |
630 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
631 |
> |
printf("\tts %.4f 0\n", cxyz[1]); |
632 |
|
return(0); |
633 |
|
} |
634 |
|
|
650 |
|
newmat(id, NULL); |
651 |
|
rrgb[0] = fa->farg[0]; rrgb[1] = fa->farg[1]; rrgb[2] = fa->farg[2]; |
652 |
|
rgb_cie(cxyz, rrgb); |
653 |
< |
puts("c"); /* put specular component */ |
653 |
> |
puts("\tc"); /* put specular component */ |
654 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
655 |
|
if (d > FTINY) |
656 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
657 |
< |
printf("rs %.4f 0\n", cxyz[1]); |
656 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
657 |
> |
printf("\trs %.4f 0\n", cxyz[1]); |
658 |
|
return(0); |
659 |
|
} |
660 |
|
|
683 |
|
newmat(id, NULL); |
684 |
|
rrgb[0] = fa->farg[0]; rrgb[1] = fa->farg[1]; rrgb[2] = fa->farg[2]; |
685 |
|
rgb_cie(cxyz, rrgb); |
686 |
< |
puts("c"); /* put transmitted diffuse */ |
686 |
> |
puts("\tc"); /* put transmitted diffuse */ |
687 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
688 |
|
if (d > FTINY) |
689 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
690 |
< |
printf("td %.4f\n", cxyz[1]*trans*(1. - fa->farg[3])*(1. - tspec)); |
689 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
690 |
> |
printf("\ttd %.4f\n", cxyz[1]*trans*(1. - fa->farg[3])*(1. - tspec)); |
691 |
|
/* put transmitted specular */ |
692 |
< |
printf("ts %.4f %.4f\n", cxyz[1]*trans*tspec*(1. - fa->farg[3]), rough); |
692 |
> |
printf("\tts %.4f %.4f\n", cxyz[1]*trans*tspec*(1. - fa->farg[3]), rough); |
693 |
|
/* put reflected diffuse */ |
694 |
< |
printf("rd %.4f\n", cxyz[1]*(1. - fa->farg[3])*(1. - trans)); |
695 |
< |
puts("c"); /* put reflected specular */ |
696 |
< |
printf("rs %.4f %.4f\n", fa->farg[3], rough); |
694 |
> |
printf("\trd %.4f\n", cxyz[1]*(1. - fa->farg[3])*(1. - trans)); |
695 |
> |
puts("\tc"); /* put reflected specular */ |
696 |
> |
printf("\trs %.4f %.4f\n", fa->farg[3], rough); |
697 |
|
return(0); |
698 |
|
} |
699 |
|
|
712 |
|
rrgb[0] = fa->farg[0]; rrgb[1] = fa->farg[1]; rrgb[2] = fa->farg[2]; |
713 |
|
rgb_cie(cxyz, rrgb); |
714 |
|
d = cxyz[0] + cxyz[1] + cxyz[2]; |
715 |
< |
puts("c"); |
715 |
> |
puts("\tc"); |
716 |
|
if (d > FTINY) |
717 |
< |
printf("cxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
718 |
< |
printf("ed %.4g\n", cxyz[1]); |
717 |
> |
printf("\t\tcxy %.4f %.4f\n", cxyz[0]/d, cxyz[1]/d); |
718 |
> |
printf("\ted %.4g\n", cxyz[1]*WHTEFFICACY); |
719 |
|
return(0); |
720 |
|
} |