| 1447 |
|
mat -> oargs.nfargs % 3) |
| 1448 |
|
objerror(mat, USER, "bad # arguments"); |
| 1449 |
|
|
| 1450 |
< |
hitFront = (rayIn -> rod > 0); |
| 1450 |
> |
hitFront = (rayIn -> rod > 0); |
| 1451 |
|
|
| 1452 |
< |
/* Load cal file */ |
| 1453 |
< |
mf = getfunc(mat, 5, 0x1d, 1); |
| 1454 |
< |
|
| 1455 |
< |
/* Get thickness */ |
| 1456 |
< |
nd.thick = evalue(mf -> ep [0]); |
| 1457 |
< |
if ((-FTINY <= nd.thick) & (nd.thick <= FTINY)) |
| 1458 |
< |
nd.thick = .0; |
| 1452 |
> |
/* Load cal file */ |
| 1453 |
> |
mf = getfunc(mat, 5, 0x1d, 1); |
| 1454 |
|
|
| 1455 |
+ |
/* Get thickness */ |
| 1456 |
+ |
nd.thick = evalue(mf -> ep [0]); |
| 1457 |
+ |
if ((-FTINY <= nd.thick) & (nd.thick <= FTINY)) |
| 1458 |
+ |
nd.thick = .0; |
| 1459 |
+ |
|
| 1460 |
|
/* Get BSDF data */ |
| 1461 |
|
nd.sd = loadBSDF(mat -> oargs.sarg [1]); |
| 1462 |
|
|
| 1479 |
|
else setcolor(nd.rdiff, mat -> oargs.farg [3], mat -> oargs.farg [4], |
| 1480 |
|
mat -> oargs.farg [5]); |
| 1481 |
|
|
| 1482 |
< |
/* Extra diffuse transmittance from material def */ |
| 1483 |
< |
if (mat -> oargs.nfargs < 9) |
| 1484 |
< |
setcolor(nd.tdiff, .0, .0, .0); |
| 1482 |
> |
/* Extra diffuse transmittance from material def */ |
| 1483 |
> |
if (mat -> oargs.nfargs < 9) |
| 1484 |
> |
setcolor(nd.tdiff, .0, .0, .0); |
| 1485 |
|
else setcolor(nd.tdiff, mat -> oargs.farg [6], mat -> oargs.farg [7], |
| 1486 |
|
mat -> oargs.farg [8]); |
| 1487 |
|
|
| 1488 |
|
nd.mp = mat; |
| 1489 |
|
nd.pr = rayIn; |
| 1490 |
< |
|
| 1490 |
> |
|
| 1491 |
|
/* Get modifiers */ |
| 1492 |
|
raytexture(rayIn, mat -> omod); |
| 1493 |
|
|
| 1494 |
|
/* Modify diffuse values */ |
| 1495 |
|
multcolor(nd.rdiff, rayIn -> pcol); |
| 1496 |
|
multcolor(nd.tdiff, rayIn -> pcol); |
| 1497 |
< |
|
| 1497 |
> |
|
| 1498 |
|
/* Get up vector & xform to world coords */ |
| 1499 |
|
upvec [0] = evalue(mf -> ep [1]); |
| 1500 |
|
upvec [1] = evalue(mf -> ep [2]); |
| 1541 |
|
nd.sr_vpsa [1] = sqrt(nd.sr_vpsa [1]); |
| 1542 |
|
|
| 1543 |
|
/* Orient perturbed normal towards incident side */ |
| 1544 |
< |
if (!hitFront) { |
| 1544 |
> |
if (!hitFront) { |
| 1545 |
|
nd.pnorm [0] = -nd.pnorm [0]; |
| 1546 |
|
nd.pnorm [1] = -nd.pnorm [1]; |
| 1547 |
|
nd.pnorm [2] = -nd.pnorm [2]; |
| 1585 |
|
|
| 1586 |
|
else if ((xi -= ptDiff) <= 0) { |
| 1587 |
|
/* Diffuse transmission (extra component in material def) */ |
| 1588 |
– |
flipsurface(rayIn); |
| 1589 |
– |
nd.thick = -nd.thick; |
| 1588 |
|
photonRay(rayIn, &rayOut, PMAP_DIFFTRANS, nd.tdiff); |
| 1589 |
|
diffPhotonScatter(nd.pnorm, &rayOut); |
| 1590 |
|
transmitted = 1; |
| 1613 |
|
ccy2rgb(&bsdfVal.spec, bsdfVal.cieY, bsdfRGB); |
| 1614 |
|
multcolor(bsdfRGB, rayIn -> pcol); |
| 1615 |
|
addcolor(bsdfRGB, nd.tdiff); |
| 1618 |
– |
flipsurface(rayIn); /* Necessary? */ |
| 1619 |
– |
nd.thick = -nd.thick; |
| 1616 |
|
photonRay(rayIn, &rayOut, PMAP_DIFFTRANS, bsdfRGB); |
| 1617 |
|
transmitted = 1; |
| 1618 |
|
} |
| 1636 |
|
/* Apply pattern to spectral component */ |
| 1637 |
|
ccy2rgb(&bsdfVal.spec, bsdfVal.cieY, bsdfRGB); |
| 1638 |
|
multcolor(bsdfRGB, rayIn -> pcol); |
| 1643 |
– |
flipsurface(rayIn); /* Necessary? */ |
| 1644 |
– |
nd.thick = -nd.thick; |
| 1639 |
|
photonRay(rayIn, &rayOut, PMAP_SPECTRANS, bsdfRGB); |
| 1640 |
|
transmitted = 1; |
| 1641 |
|
} |
| 1650 |
|
/* Clean up */ |
| 1651 |
|
SDfreeCache(nd.sd); |
| 1652 |
|
|
| 1653 |
< |
/* Need to offset ray origin to get past detail geometry? */ |
| 1653 |
> |
/* Offset outgoing photon origin by thickness to bypass proxy geometry */ |
| 1654 |
|
if (transmitted && nd.thick != 0) |
| 1655 |
|
VSUM(rayOut.rorg, rayOut.rorg, rayIn -> ron, -nd.thick); |
| 1656 |
|
|
| 1661 |
|
|
| 1662 |
|
|
| 1663 |
|
static int lightPhotonScatter (OBJREC* mat, RAY* ray) |
| 1664 |
< |
/* Light sources doan' reflect */ |
| 1664 |
> |
/* Light sources doan' reflect, mang */ |
| 1665 |
|
{ |
| 1666 |
|
return 0; |
| 1667 |
|
} |
