| 9 |
|
|
| 10 |
|
#include "ray.h" |
| 11 |
|
#include "otypes.h" |
| 12 |
+ |
#include "otspecial.h" |
| 13 |
|
#include "rtotypes.h" |
| 14 |
|
#include "source.h" |
| 14 |
– |
#include "pmapmat.h" |
| 15 |
|
|
| 16 |
|
/* |
| 17 |
|
* The real arguments for MAT_MIRROR are simply: |
| 36 |
|
RAY *r |
| 37 |
|
) |
| 38 |
|
{ |
| 39 |
– |
COLOR mcolor; |
| 40 |
– |
RAY nr; |
| 41 |
– |
int rpure = 1; |
| 42 |
– |
int i; |
| 43 |
– |
|
| 44 |
– |
/* PMAP: skip specular refl via ambient bounce if already accounted for |
| 45 |
– |
* in photon map */ |
| 46 |
– |
if (ambRayInPmap(r)) |
| 47 |
– |
return(1); |
| 39 |
|
/* check arguments */ |
| 40 |
|
if (m->oargs.nfargs != 3 || m->oargs.nsargs > 1) |
| 41 |
|
objerror(m, USER, "bad number of arguments"); |
| 42 |
|
/* check for substitute material */ |
| 43 |
|
/* but avoid double-counting */ |
| 44 |
< |
if (m->oargs.nsargs > 0 && !(r->crtype & (AMBIENT|SPECULAR)) && |
| 44 |
> |
if (m->oargs.nsargs > 0 && |
| 45 |
|
(r->rsrc < 0 || source[r->rsrc].so != r->ro)) { |
| 46 |
< |
if (!strcmp(m->oargs.sarg[0], VOIDID)) { |
| 47 |
< |
raytrans(r); |
| 46 |
> |
int passOK = (r->rod < 0.) | |
| 47 |
> |
!(r->crtype & (AMBIENT|SPECULAR)); |
| 48 |
> |
if (strcmp(m->oargs.sarg[0], VOIDID)) { |
| 49 |
> |
OBJECT altmod = lastmod(objndx(m), m->oargs.sarg[0]); |
| 50 |
> |
OBJREC *altmat; |
| 51 |
> |
if (passOK) /* no double-count hazard? */ |
| 52 |
> |
return(rayshade(r, altmod)); |
| 53 |
> |
if (altmod == OVOID || /* else check alternate type */ |
| 54 |
> |
(altmat = findmaterial(objptr(altmod))) == NULL) |
| 55 |
> |
return(0); |
| 56 |
> |
if (istransp(altmat)) /* pass "transparent" materials */ |
| 57 |
> |
return(rayshade(r, altmod)); |
| 58 |
> |
} else if (passOK) { |
| 59 |
> |
raytrans(r); /* "safe" void passage */ |
| 60 |
|
return(1); |
| 61 |
|
} |
| 59 |
– |
return(rayshade(r, lastmod(objndx(m), m->oargs.sarg[0]))); |
| 62 |
|
} |
| 63 |
|
/* check for bad source ray */ |
| 64 |
|
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
| 69 |
|
raytrans(r); /* unless back visibility is off */ |
| 70 |
|
return(1); |
| 71 |
|
} |
| 72 |
+ |
{ /* new context for stack memory */ |
| 73 |
+ |
SCOLOR mcolor; |
| 74 |
+ |
RAY nr; |
| 75 |
+ |
int rpure = 1; |
| 76 |
+ |
int i; |
| 77 |
|
/* get modifiers */ |
| 78 |
|
raytexture(r, m->omod); |
| 79 |
|
/* assign material color */ |
| 80 |
< |
setcolor(mcolor, m->oargs.farg[0], |
| 80 |
> |
setscolor(mcolor, m->oargs.farg[0], |
| 81 |
|
m->oargs.farg[1], |
| 82 |
|
m->oargs.farg[2]); |
| 83 |
< |
multcolor(mcolor, r->pcol); |
| 83 |
> |
smultscolor(mcolor, r->pcol); |
| 84 |
|
/* compute reflected ray */ |
| 85 |
|
if (r->rsrc >= 0) { /* relayed light source */ |
| 86 |
|
rayorigin(&nr, REFLECTED, r, mcolor); |
| 109 |
|
} |
| 110 |
|
checknorm(nr.rdir); |
| 111 |
|
rayvalue(&nr); |
| 112 |
< |
multcolor(nr.rcol, nr.rcoef); |
| 113 |
< |
addcolor(r->rcol, nr.rcol); |
| 112 |
> |
smultscolor(nr.rcol, nr.rcoef); |
| 113 |
> |
copyscolor(r->mcol, nr.rcol); |
| 114 |
> |
saddscolor(r->rcol, nr.rcol); |
| 115 |
> |
r->rmt = r->rot; |
| 116 |
|
if (rpure && r->ro != NULL && isflat(r->ro->otype)) |
| 117 |
< |
r->rt = r->rot + nr.rt; |
| 117 |
> |
r->rmt += raydistance(&nr); |
| 118 |
> |
} /* end stack context */ |
| 119 |
|
return(1); |
| 120 |
|
} |
| 121 |
|
|
