| 192 |
|
colval(nd.scolor,i) += (1.0-colval(nd.scolor,i))*dtmp; |
| 193 |
|
nd.rspec += (1.0-nd.rspec)*dtmp; |
| 194 |
|
/* check threshold */ |
| 195 |
< |
if (nd.rspec <= specthresh+FTINY) |
| 195 |
> |
if (specthresh > FTINY && |
| 196 |
> |
((specthresh >= 1.-FTINY || |
| 197 |
> |
specthresh + (.1 - .2*urand(8199+samplendx)) |
| 198 |
> |
> nd.rspec))) |
| 199 |
|
nd.specfl |= SP_RBLT; |
| 200 |
|
/* compute reflected ray */ |
| 201 |
|
for (i = 0; i < 3; i++) |
| 219 |
|
if (nd.tspec > FTINY) { |
| 220 |
|
nd.specfl |= SP_TRAN; |
| 221 |
|
/* check threshold */ |
| 222 |
< |
if (nd.tspec <= specthresh+FTINY) |
| 222 |
> |
if (specthresh > FTINY && |
| 223 |
> |
((specthresh >= 1.-FTINY || |
| 224 |
> |
specthresh + |
| 225 |
> |
(.1 - .2*urand(7241+samplendx)) |
| 226 |
> |
> nd.tspec))) |
| 227 |
|
nd.specfl |= SP_TBLT; |
| 228 |
|
if (r->crtype & SHADOW || |
| 229 |
|
DOT(r->pert,r->pert) <= FTINY*FTINY) { |
