| 122 |
|
return(0); |
| 123 |
|
} |
| 124 |
|
sf = specjitter * ndp->pr->rweight; |
| 125 |
< |
if (25.*tomega <= omega) |
| 125 |
> |
if (tomega <= .0) |
| 126 |
> |
nsamp = 1; |
| 127 |
> |
else if (25.*tomega <= omega) |
| 128 |
|
nsamp = 100.*sf + .5; |
| 129 |
|
else |
| 130 |
|
nsamp = 4.*sf*omega/tomega + .5; |
| 446 |
|
hitfront = (r->rod > 0); |
| 447 |
|
/* load cal file */ |
| 448 |
|
mf = getfunc(m, 5, 0x1d, 1); |
| 449 |
+ |
setfunc(m, r); |
| 450 |
|
/* get thickness */ |
| 451 |
|
nd.thick = evalue(mf->ep[0]); |
| 452 |
|
if ((-FTINY <= nd.thick) & (nd.thick <= FTINY)) |
| 457 |
|
raytrans(r); /* pass-through */ |
| 458 |
|
return(1); /* or shadow */ |
| 459 |
|
} |
| 460 |
+ |
/* check backface visibility */ |
| 461 |
+ |
if (!hitfront & !backvis) { |
| 462 |
+ |
raytrans(r); |
| 463 |
+ |
return(1); |
| 464 |
+ |
} |
| 465 |
|
/* check other rays to pass */ |
| 466 |
|
if (nd.thick != 0 && (!(r->crtype & (SPECULAR|AMBIENT)) || |
| 467 |
|
nd.thick > 0 ^ hitfront)) { |
| 479 |
|
m->oargs.farg[1], |
| 480 |
|
m->oargs.farg[2]); |
| 481 |
|
} else { |
| 482 |
< |
if (m->oargs.nfargs < 6) { /* check invisible backside */ |
| 475 |
< |
if (!backvis && (nd.sd->rb == NULL) & |
| 476 |
< |
(nd.sd->tb == NULL)) { |
| 477 |
< |
SDfreeCache(nd.sd); |
| 478 |
< |
raytrans(r); |
| 479 |
< |
return(1); |
| 480 |
< |
} |
| 482 |
> |
if (m->oargs.nfargs < 6) |
| 483 |
|
setcolor(nd.rdiff, .0, .0, .0); |
| 484 |
< |
} else |
| 484 |
> |
else |
| 485 |
|
setcolor(nd.rdiff, m->oargs.farg[3], |
| 486 |
|
m->oargs.farg[4], |
| 487 |
|
m->oargs.farg[5]); |
| 508 |
|
if (mf->fxp != &unitxf) { |
| 509 |
|
multv3(upvec, upvec, mf->fxp->xfm); |
| 510 |
|
nd.thick *= mf->fxp->sca; |
| 511 |
+ |
} |
| 512 |
+ |
if (r->rox != NULL) { |
| 513 |
+ |
multv3(upvec, upvec, r->rox->f.xfm); |
| 514 |
+ |
nd.thick *= r->rox->f.sca; |
| 515 |
|
} |
| 516 |
|
raynormal(nd.pnorm, r); |
| 517 |
|
/* compute local BSDF xform */ |
