34 |
|
{0, 5, NULL, Lambfa}, NULL, |
35 |
|
}; /* a Lambertian surface */ |
36 |
|
|
37 |
+ |
static OBJREC Aftplane; /* aft clipping plane object */ |
38 |
+ |
|
39 |
|
static int raymove(), checkset(), checkhit(); |
40 |
|
|
41 |
|
#define MAXLOOP 128 /* modifier loop detection */ |
69 |
|
r->rweight = ro->rweight * rw; |
70 |
|
r->crtype = ro->crtype | (r->rtype = rt); |
71 |
|
VCOPY(r->rorg, ro->rop); |
72 |
+ |
r->rmax = 0.0; |
73 |
|
} |
74 |
|
rayclear(r); |
75 |
|
return(r->rlvl <= maxdepth && r->rweight >= minweight ? 0 : -1); |
81 |
|
{ |
82 |
|
r->rno = raynum++; |
83 |
|
r->newcset = r->clipset; |
84 |
< |
r->ro = NULL; |
85 |
< |
r->rot = FHUGE; |
84 |
> |
if (r->rmax > FTINY) { |
85 |
> |
r->ro = &Aftplane; |
86 |
> |
r->rot = r->rmax; |
87 |
> |
r->rop[0] = r->rorg[0] + r->rot*r->rdir[0]; |
88 |
> |
r->rop[1] = r->rorg[1] + r->rot*r->rdir[1]; |
89 |
> |
r->rop[2] = r->rorg[2] + r->rot*r->rdir[2]; |
90 |
> |
} else { |
91 |
> |
r->ro = NULL; |
92 |
> |
r->rot = FHUGE; |
93 |
> |
} |
94 |
|
r->pert[0] = r->pert[1] = r->pert[2] = 0.0; |
95 |
|
setcolor(r->pcol, 1.0, 1.0, 1.0); |
96 |
|
setcolor(r->rcol, 0.0, 0.0, 0.0); |
106 |
|
|
107 |
|
if (localhit(r, &thescene)) |
108 |
|
gotmat = raycont(r); |
109 |
< |
else if (sourcehit(r)) |
109 |
> |
else if (r->ro == &Aftplane) { |
110 |
> |
r->ro = NULL; |
111 |
> |
r->rot = FHUGE; |
112 |
> |
} else if (sourcehit(r)) |
113 |
|
gotmat = rayshade(r, r->ro->omod); |
114 |
|
|
115 |
|
if (r->ro != NULL && !gotmat) |
392 |
|
return(0); |
393 |
|
} |
394 |
|
cxset[0] = 0; |
395 |
< |
return(raymove(curpos, cxset, sflags, r, scene) == RAYHIT); |
395 |
> |
return(raymove(curpos, cxset, sflags, r, scene) == RAYHIT && |
396 |
> |
r->ro != &Aftplane); |
397 |
|
} |
398 |
|
|
399 |
|
|