| 25 |
|
register int i; |
| 26 |
|
/* get the octree */ |
| 27 |
|
in = getinstance(o, IO_ALL); |
| 28 |
< |
/* copy old ray */ |
| 28 |
> |
/* duplicate and clear ray */ |
| 29 |
|
copystruct(&rcont, r); |
| 30 |
< |
/* transform it */ |
| 31 |
< |
rcont.rno = raynum++; |
| 32 |
< |
rcont.ro = NULL; |
| 33 |
< |
rcont.rot = FHUGE; |
| 30 |
> |
rayclear(&rcont); |
| 31 |
> |
/* transform ray to new space */ |
| 32 |
|
multp3(rcont.rorg, r->rorg, in->x.b.xfm); |
| 33 |
|
multv3(rcont.rdir, r->rdir, in->x.b.xfm); |
| 34 |
|
for (i = 0; i < 3; i++) |
| 35 |
|
rcont.rdir[i] /= in->x.b.sca; |
| 36 |
|
/* trace it */ |
| 37 |
|
if (!localhit(&rcont, &in->obj->scube)) |
| 38 |
< |
return(0); /* missed */ |
| 38 |
> |
return(0); /* missed */ |
| 39 |
|
if (rcont.rot * in->x.f.sca >= r->rot) |
| 40 |
< |
return(0); /* not close enough */ |
| 40 |
> |
return(0); /* not close enough */ |
| 41 |
|
|
| 42 |
|
if (o->omod != OVOID) { /* if we have modifier, use it */ |
| 43 |
|
r->ro = o; |
