96 |
|
{ |
97 |
|
r->rno = raynum++; |
98 |
|
r->newcset = r->clipset; |
99 |
+ |
r->robj = OVOID; |
100 |
|
r->ro = NULL; |
101 |
< |
r->rot = FHUGE; |
101 |
> |
r->rt = r->rot = FHUGE; |
102 |
|
r->pert[0] = r->pert[1] = r->pert[2] = 0.0; |
103 |
|
setcolor(r->pcol, 1.0, 1.0, 1.0); |
104 |
|
setcolor(r->rcol, 0.0, 0.0, 0.0); |
104 |
– |
r->rt = 0.0; |
105 |
|
} |
106 |
|
|
107 |
|
|
189 |
|
register RAY *r; |
190 |
|
{ |
191 |
|
COLOR ce, ca; |
192 |
– |
double dist; |
192 |
|
double re, ge, be; |
193 |
|
|
194 |
|
if (intens(r->cext) <= 1./FHUGE) |
195 |
|
return; /* no medium */ |
196 |
< |
if ((dist = r->rot) >= FHUGE) |
197 |
< |
dist = 2.*thescene.cusize; /* what to use for infinity? */ |
198 |
< |
re = dist*colval(r->cext,RED); |
200 |
< |
ge = dist*colval(r->cext,GRN); |
201 |
< |
be = dist*colval(r->cext,BLU); |
196 |
> |
re = r->rot*colval(r->cext,RED); |
197 |
> |
ge = r->rot*colval(r->cext,GRN); |
198 |
> |
be = r->rot*colval(r->cext,BLU); |
199 |
|
if (r->crtype & SHADOW) { /* no scattering for sources */ |
200 |
|
re *= 1. - colval(r->albedo,RED); |
201 |
|
ge *= 1. - colval(r->albedo,GRN); |
269 |
|
backmat = rayshade(&br, back); |
270 |
|
/* check for transparency */ |
271 |
|
if (backmat ^ foremat) |
272 |
< |
if (backmat) |
272 |
> |
if (backmat && coef > FTINY) |
273 |
|
raytrans(&fr); |
274 |
< |
else |
274 |
> |
else if (foremat && coef < 1.0-FTINY) |
275 |
|
raytrans(&br); |
276 |
|
/* mix perturbations */ |
277 |
|
for (i = 0; i < 3; i++) |
554 |
|
checkset(oset, cxs); /* eliminate double-checking */ |
555 |
|
for (i = oset[0]; i > 0; i--) { |
556 |
|
o = objptr(oset[i]); |
557 |
< |
(*ofun[o->otype].funp)(o, r); |
557 |
> |
if ((*ofun[o->otype].funp)(o, r)) |
558 |
> |
r->robj = oset[i]; |
559 |
|
} |
560 |
|
if (r->ro == NULL) |
561 |
|
return(0); /* no scores yet */ |