| 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 |
|
|
