27 |
|
|
28 |
|
initstypes() /* initialize source dispatch table */ |
29 |
|
{ |
30 |
< |
extern VSMATERIAL mirror_vs; |
30 |
> |
extern VSMATERIAL mirror_vs, direct1_vs, direct2_vs; |
31 |
|
extern int fsetsrc(), ssetsrc(), sphsetsrc(), rsetsrc(); |
32 |
|
extern double fgetplaneq(), rgetplaneq(); |
33 |
|
extern double fgetmaxdisk(), rgetmaxdisk(); |
37 |
|
static SOBJECT rsobj = {rsetsrc, rgetplaneq, rgetmaxdisk}; |
38 |
|
|
39 |
|
sfun[MAT_MIRROR].mf = &mirror_vs; |
40 |
+ |
sfun[MAT_DIRECT1].mf = &direct1_vs; |
41 |
+ |
sfun[MAT_DIRECT2].mf = &direct2_vs; |
42 |
|
sfun[OBJ_FACE].of = &fsobj; |
43 |
|
sfun[OBJ_SOURCE].of = &ssobj; |
44 |
|
sfun[OBJ_SPHERE].of = &sphsobj; |
49 |
|
int |
50 |
|
newsource() /* allocate new source in our array */ |
51 |
|
{ |
52 |
+ |
#define SRCINC 4 |
53 |
|
if (nsources == 0) |
54 |
< |
source = (SRCREC *)malloc(sizeof(SRCREC)); |
55 |
< |
else |
54 |
> |
source = (SRCREC *)malloc(SRCINC*sizeof(SRCREC)); |
55 |
> |
else if (nsources%SRCINC == 0) |
56 |
|
source = (SRCREC *)realloc((char *)source, |
57 |
< |
(unsigned)(nsources+1)*sizeof(SRCREC)); |
57 |
> |
(unsigned)(nsources+SRCINC)*sizeof(SRCREC)); |
58 |
|
if (source == NULL) |
59 |
|
return(-1); |
60 |
|
source[nsources].sflags = 0; |
61 |
|
source[nsources].nhits = 1; |
62 |
|
source[nsources].ntests = 2; /* initial hit probability = 1/2 */ |
63 |
|
return(nsources++); |
64 |
+ |
#undef SRCINC |
65 |
|
} |
66 |
|
|
67 |
|
|
292 |
|
|
293 |
|
d = DOT(sp->aim, nrm); |
294 |
|
if (d > FTINY) /* center in front? */ |
295 |
< |
return(0); |
295 |
> |
return(1); |
296 |
|
/* else check horizon */ |
297 |
|
d1 = 1. - sp->siz/(2.*PI); |
298 |
< |
return(1.-FTINY-d*d > d1*d1); |
298 |
> |
return(1.-FTINY-d*d < d1*d1); |
299 |
|
} |
300 |
|
|
301 |
|
|
394 |
|
first = 0; last = nsources-1; |
395 |
|
} |
396 |
|
for (i = first; i <= last; i++) |
397 |
< |
if (source[i].sflags & SDISTANT) |
397 |
> |
if ((source[i].sflags & (SDISTANT|SVIRTUAL)) == SDISTANT) |
398 |
|
/* |
399 |
|
* Check to see if ray is within |
400 |
|
* solid angle of source. |
417 |
|
} |
418 |
|
|
419 |
|
|
420 |
< |
#define wrongsource(m, r) (m->otype!=MAT_ILLUM && \ |
421 |
< |
r->rsrc>=0 && \ |
422 |
< |
source[r->rsrc].so!=r->ro) |
420 |
> |
#define wrongsource(m, r) (r->rsrc>=0 && \ |
421 |
> |
source[r->rsrc].so!=r->ro && \ |
422 |
> |
(m->otype!=MAT_ILLUM || \ |
423 |
> |
objptr(source[r->rsrc].so->omod)->otype==MAT_ILLUM)) |
424 |
|
|
425 |
+ |
#define distglow(m, r) (m->otype==MAT_GLOW && \ |
426 |
+ |
r->rot > m->oargs.farg[3]) |
427 |
+ |
|
428 |
|
#define badambient(m, r) ((r->crtype&(AMBIENT|SHADOW))==AMBIENT && \ |
429 |
< |
!(m->otype==MAT_GLOW&&r->rot>m->oargs.farg[3])) |
429 |
> |
!distglow(m, r)) |
430 |
|
|
431 |
|
#define passillum(m, r) (m->otype==MAT_ILLUM && \ |
432 |
|
!(r->rsrc>=0&&source[r->rsrc].so==r->ro)) |
433 |
|
|
434 |
+ |
#define srcignore(m, r) (directinvis && !(r->crtype&SHADOW) && \ |
435 |
+ |
!distglow(m, r)) |
436 |
|
|
437 |
+ |
|
438 |
|
m_light(m, r) /* ray hit a light source */ |
439 |
|
register OBJREC *m; |
440 |
|
register RAY *r; |
444 |
|
return; |
445 |
|
/* check for passed illum */ |
446 |
|
if (passillum(m, r)) { |
436 |
– |
|
447 |
|
if (m->oargs.nsargs < 1 || !strcmp(m->oargs.sarg[0], VOIDID)) |
448 |
|
raytrans(r); |
449 |
|
else |
450 |
|
rayshade(r, modifier(m->oargs.sarg[0])); |
451 |
< |
|
452 |
< |
/* otherwise treat as source */ |
453 |
< |
} else { |
451 |
> |
return; |
452 |
> |
} |
453 |
> |
/* otherwise treat as source */ |
454 |
|
/* check for behind */ |
455 |
< |
if (r->rod < 0.0) |
456 |
< |
return; |
455 |
> |
if (r->rod < 0.0) |
456 |
> |
return; |
457 |
> |
/* check for invisibility */ |
458 |
> |
if (srcignore(m, r)) |
459 |
> |
return; |
460 |
|
/* get distribution pattern */ |
461 |
< |
raytexture(r, m->omod); |
461 |
> |
raytexture(r, m->omod); |
462 |
|
/* get source color */ |
463 |
< |
setcolor(r->rcol, m->oargs.farg[0], |
464 |
< |
m->oargs.farg[1], |
465 |
< |
m->oargs.farg[2]); |
463 |
> |
setcolor(r->rcol, m->oargs.farg[0], |
464 |
> |
m->oargs.farg[1], |
465 |
> |
m->oargs.farg[2]); |
466 |
|
/* modify value */ |
467 |
< |
multcolor(r->rcol, r->pcol); |
455 |
< |
} |
467 |
> |
multcolor(r->rcol, r->pcol); |
468 |
|
} |