| 191 |
|
} |
| 192 |
|
|
| 193 |
|
|
| 194 |
< |
m_brdf(m, r) /* color a ray which hit a BRDTF material */ |
| 194 |
> |
m_brdf(m, r) /* color a ray which hit a BRDTfunc material */ |
| 195 |
|
register OBJREC *m; |
| 196 |
|
register RAY *r; |
| 197 |
|
{ |
| 291 |
|
if (hasrefl) { |
| 292 |
|
if (nd.pdot < 0.0) |
| 293 |
|
flipsurface(r); |
| 294 |
< |
ambient(ctmp, r); |
| 294 |
> |
ambient(ctmp, r, nd.pnorm); |
| 295 |
|
multcolor(ctmp, nd.rdiff); |
| 296 |
|
addcolor(r->rcol, ctmp); /* add to returned color */ |
| 297 |
|
if (nd.pdot < 0.0) |
| 300 |
|
if (hastrans) { /* from other side */ |
| 301 |
|
if (nd.pdot > 0.0) |
| 302 |
|
flipsurface(r); |
| 303 |
< |
ambient(ctmp, r); |
| 303 |
> |
ambient(ctmp, r, nd.pnorm); |
| 304 |
|
multcolor(ctmp, nd.tdiff); |
| 305 |
|
addcolor(r->rcol, ctmp); |
| 306 |
|
if (nd.pdot > 0.0) |
| 377 |
|
} |
| 378 |
|
/* compute ambient */ |
| 379 |
|
if (nd.trans < 1.0-FTINY) { |
| 380 |
< |
ambient(ctmp, r); |
| 380 |
> |
ambient(ctmp, r, nd.pnorm); |
| 381 |
|
scalecolor(ctmp, 1.0-nd.trans); |
| 382 |
|
multcolor(ctmp, nd.mcolor); /* modified by material color */ |
| 383 |
|
addcolor(r->rcol, ctmp); /* add to returned color */ |
| 384 |
|
} |
| 385 |
|
if (nd.trans > FTINY) { /* from other side */ |
| 386 |
|
flipsurface(r); |
| 387 |
< |
ambient(ctmp, r); |
| 387 |
> |
ambient(ctmp, r, nd.pnorm); |
| 388 |
|
scalecolor(ctmp, nd.trans); |
| 389 |
|
multcolor(ctmp, nd.mcolor); |
| 390 |
|
addcolor(r->rcol, ctmp); |
