| 263 |
|
/* diffuse reflection */ |
| 264 |
|
nd.rdiff = 1.0 - nd.trans - nd.rspec; |
| 265 |
|
|
| 266 |
< |
if (r->ro != NULL && (r->ro->otype == OBJ_FACE || |
| 267 |
< |
r->ro->otype == OBJ_RING)) |
| 266 |
> |
if (r->ro != NULL && isflat(r->ro->otype)) |
| 267 |
|
nd.specfl |= SP_FLAT; |
| 268 |
|
|
| 269 |
|
getacoords(r, &nd); /* set up coordinates */ |
| 272 |
|
agaussamp(r, &nd); |
| 273 |
|
|
| 274 |
|
if (nd.rdiff > FTINY) { /* ambient from this side */ |
| 275 |
< |
ambient(ctmp, r); |
| 275 |
> |
ambient(ctmp, r, nd.pnorm); |
| 276 |
|
if (nd.specfl & SP_RBLT) |
| 277 |
|
scalecolor(ctmp, 1.0-nd.trans); |
| 278 |
|
else |
| 281 |
|
addcolor(r->rcol, ctmp); /* add to returned color */ |
| 282 |
|
} |
| 283 |
|
if (nd.tdiff > FTINY) { /* ambient from other side */ |
| 284 |
+ |
FVECT bnorm; |
| 285 |
+ |
|
| 286 |
|
flipsurface(r); |
| 287 |
< |
ambient(ctmp, r); |
| 287 |
> |
bnorm[0] = -nd.pnorm[0]; |
| 288 |
> |
bnorm[1] = -nd.pnorm[1]; |
| 289 |
> |
bnorm[2] = -nd.pnorm[2]; |
| 290 |
> |
ambient(ctmp, r, bnorm); |
| 291 |
|
if (nd.specfl & SP_TBLT) |
| 292 |
|
scalecolor(ctmp, nd.trans); |
| 293 |
|
else |
