1 |
– |
/* Copyright (c) 1994 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* Convert MGF (Materials and Geometry Format) to Radiance |
6 |
|
*/ |
7 |
|
|
8 |
|
#include <stdio.h> |
9 |
+ |
#include <stdlib.h> |
10 |
|
#include <math.h> |
11 |
|
#include <string.h> |
12 |
|
#include "mgflib/parser.h" |
21 |
|
|
22 |
|
double emult = 1.; /* emitter multiplier */ |
23 |
|
|
24 |
< |
FILE *matfp = stdout; /* material output file */ |
24 |
> |
FILE *matfp; /* material output file */ |
25 |
|
|
26 |
|
int r_comment(), r_cone(), r_cyl(), r_face(), r_ies(), r_ring(), r_sph(); |
27 |
|
char *material(), *object(), *addarg(); |
31 |
|
int argc; |
32 |
|
char *argv[]; |
33 |
|
{ |
34 |
< |
int i, rv; |
34 |
> |
int i; |
35 |
> |
|
36 |
> |
matfp = stdout; |
37 |
> |
/* print out parser version */ |
38 |
> |
printf("## Translated from MGF Version %d.%d\n", MG_VMAJOR, MG_VMINOR); |
39 |
|
/* initialize dispatch table */ |
40 |
|
mg_ehand[MG_E_COMMENT] = r_comment; /* we pass comments */ |
41 |
|
mg_ehand[MG_E_COLOR] = c_hcolor; /* they get color */ |
94 |
|
} |
95 |
|
putchar('\n'); |
96 |
|
if (i == argc) { /* convert stdin */ |
97 |
< |
if ((rv = mg_load(NULL)) != MG_OK) |
97 |
> |
if (mg_load(NULL) != MG_OK) |
98 |
|
exit(1); |
99 |
+ |
if (mg_nunknown) |
100 |
+ |
printf("## %s: %u unknown entities\n", |
101 |
+ |
argv[0], mg_nunknown); |
102 |
|
} else /* convert each file */ |
103 |
|
for ( ; i < argc; i++) { |
104 |
|
printf("## %s %s ##############################\n", |
105 |
|
argv[0], argv[i]); |
106 |
< |
if ((rv = mg_load(argv[i])) != MG_OK) |
106 |
> |
if (mg_load(argv[i]) != MG_OK) |
107 |
|
exit(1); |
108 |
+ |
if (mg_nunknown) { |
109 |
+ |
printf("## %s %s: %u unknown entities\n", |
110 |
+ |
argv[0], argv[i], mg_nunknown); |
111 |
+ |
mg_nunknown = 0; |
112 |
+ |
} |
113 |
|
} |
114 |
|
exit(0); |
115 |
|
userr: |
296 |
|
char **av; |
297 |
|
{ |
298 |
|
static int nfaces; |
299 |
+ |
int myi = invert; |
300 |
|
char *mat; |
301 |
|
register int i; |
302 |
|
register C_VERTEX *cv; |
308 |
|
if ((mat = material()) == NULL) /* get material */ |
309 |
|
return(MG_EBADMAT); |
310 |
|
if (ac <= 5) { /* check for smoothing */ |
311 |
+ |
C_VERTEX *cva[5]; |
312 |
|
for (i = 1; i < ac; i++) { |
313 |
< |
if ((cv = c_getvert(av[i])) == NULL) |
313 |
> |
if ((cva[i-1] = c_getvert(av[i])) == NULL) |
314 |
|
return(MG_EUNDEF); |
315 |
< |
if (is0vect(cv->n)) |
315 |
> |
if (is0vect(cva[i-1]->n)) |
316 |
|
break; |
317 |
|
} |
318 |
< |
if (i == ac) { /* break into triangles */ |
319 |
< |
do_tri(mat, av[1], av[2], av[3]); |
318 |
> |
if (i < ac) |
319 |
> |
i = ISFLAT; |
320 |
> |
else |
321 |
> |
i = flat_tri(cva[0]->p, cva[1]->p, cva[2]->p, |
322 |
> |
cva[0]->n, cva[1]->n, cva[2]->n); |
323 |
> |
if (i == DEGEN) |
324 |
> |
return(MG_OK); /* degenerate (error?) */ |
325 |
> |
if (i == RVBENT) { |
326 |
> |
myi = !myi; |
327 |
> |
i = ISBENT; |
328 |
> |
} else if (i == RVFLAT) { |
329 |
> |
myi = !myi; |
330 |
> |
i = ISFLAT; |
331 |
> |
} |
332 |
> |
if (i == ISBENT) { /* smoothed triangles */ |
333 |
> |
do_tri(mat, cva[0], cva[1], cva[2], myi); |
334 |
|
if (ac == 5) |
335 |
< |
do_tri(mat, av[3], av[4], av[1]); |
335 |
> |
do_tri(mat, cva[2], cva[3], cva[0], myi); |
336 |
|
return(MG_OK); |
337 |
|
} |
338 |
|
} |
340 |
|
printf("\n%s polygon %sf%d\n", mat, object(), ++nfaces); |
341 |
|
printf("0\n0\n%d\n", 3*(ac-1)); |
342 |
|
for (i = 1; i < ac; i++) { /* get, transform, print each vertex */ |
343 |
< |
if ((cv = c_getvert(av[invert ? ac-i : i])) == NULL) |
343 |
> |
if ((cv = c_getvert(av[myi ? ac-i : i])) == NULL) |
344 |
|
return(MG_EUNDEF); |
345 |
|
xf_xfmpoint(v, cv->p); |
346 |
|
putv(v); |
364 |
|
if (ac < 2) |
365 |
|
return(MG_EARGC); |
366 |
|
/* construct output file name */ |
367 |
< |
if ((op = strrchr(av[1], '/')) == NULL) |
367 |
> |
if ((op = strrchr(av[1], '/')) != NULL) |
368 |
> |
op++; |
369 |
> |
else |
370 |
|
op = av[1]; |
371 |
|
(void)strcpy(fname, op); |
372 |
|
if ((op = strrchr(fname, '.')) == NULL) |
373 |
|
op = fname + strlen(fname); |
374 |
|
(void)strcpy(op, ".rad"); |
375 |
|
/* see if we need to run ies2rad */ |
376 |
< |
if (access(op, 0) == -1) { |
376 |
> |
if (access(fname, 0) == -1) { |
377 |
|
(void)strcpy(combuf, "ies2rad");/* build ies2rad command */ |
378 |
|
op = combuf + 7; /* get -m option (first) */ |
379 |
|
if (ac-xa0 >= 2 && !strcmp(av[xa0], "-m")) { |
414 |
|
} |
415 |
|
|
416 |
|
|
417 |
< |
do_tri(mat, vn1, vn2, vn3) /* put out smoothed triangle */ |
418 |
< |
char *mat, *vn1, *vn2, *vn3; |
417 |
> |
do_tri(mat, cv1, cv2, cv3, iv) /* put out smoothed triangle */ |
418 |
> |
char *mat; |
419 |
> |
C_VERTEX *cv1, *cv2, *cv3; |
420 |
> |
int iv; |
421 |
|
{ |
422 |
|
static int ntris; |
423 |
|
BARYCCM bvecs; |
424 |
< |
FLOAT bcoor[3][3]; |
425 |
< |
C_VERTEX *cv1, *cv2, *cv3; |
424 |
> |
RREAL bcoor[3][3]; |
425 |
> |
C_VERTEX *cvt; |
426 |
|
FVECT v1, v2, v3; |
427 |
|
FVECT n1, n2, n3; |
428 |
|
register int i; |
429 |
< |
/* the following is repeat code, so assume it's OK */ |
430 |
< |
cv2 = c_getvert(vn2); |
431 |
< |
if (invert) { |
432 |
< |
cv3 = c_getvert(vn1); |
433 |
< |
cv1 = c_getvert(vn3); |
404 |
< |
} else { |
405 |
< |
cv1 = c_getvert(vn1); |
406 |
< |
cv3 = c_getvert(vn3); |
429 |
> |
|
430 |
> |
if (iv) { /* swap vertex order if inverted */ |
431 |
> |
cvt = cv1; |
432 |
> |
cv1 = cv3; |
433 |
> |
cv3 = cvt; |
434 |
|
} |
435 |
|
xf_xfmpoint(v1, cv1->p); |
436 |
|
xf_xfmpoint(v2, cv2->p); |
556 |
|
return(mname); |
557 |
|
} |
558 |
|
/* check for plastic */ |
559 |
< |
if (c_cmaterial->rs < .1 && (c_cmaterial->rs < .01 || |
533 |
< |
c_isgrey(&c_cmaterial->rs_c))) { |
559 |
> |
if (c_cmaterial->rs < .1) { |
560 |
|
cvtcolor(radrgb, &c_cmaterial->rd_c, |
561 |
|
c_cmaterial->rd/(1.-c_cmaterial->rs)); |
562 |
|
fprintf(matfp, "\nvoid plastic %s\n0\n0\n", mname); |