374 |
|
srcscatter(r) /* compute source scattering into ray */ |
375 |
|
register RAY *r; |
376 |
|
{ |
377 |
+ |
int oldsampndx; |
378 |
|
int nsamps; |
379 |
|
RAY sr; |
380 |
|
SRCINDEX si; |
386 |
|
return; |
387 |
|
if (ssampdist <= FTINY || (nsamps = r->rot/ssampdist + .5) < 1) |
388 |
|
nsamps = 1; |
389 |
+ |
oldsampndx = samplendx; |
390 |
+ |
samplendx = random()&0x7fff; /* randomize */ |
391 |
|
initsrcindex(&si); |
392 |
|
for (i = r->slights[0]; i > 0; i--) { /* for each source */ |
393 |
|
setcolor(cumval, 0., 0., 0.); |
441 |
|
multcolor(cumval, ctmp); |
442 |
|
addcolor(r->rcol, cumval); /* sum into ray result */ |
443 |
|
} |
444 |
+ |
samplendx = oldsampndx; |
445 |
|
} |
446 |
|
|
447 |
|
|