213 |
|
rayorigin(&p, REFLECTED, r, p.rcoef) == 0) { |
214 |
|
|
215 |
|
/* compute reflected ray */ |
216 |
< |
for (i = 0; i < 3; i++) |
217 |
< |
p.rdir[i] = r->rdir[i] + 2.0*cos1*dnorm[i]; |
216 |
> |
VSUM(p.rdir, r->rdir, dnorm, 2.*cos1); |
217 |
|
/* accidental penetration? */ |
218 |
|
if (hastexture && DOT(p.rdir,r->ron)*hastexture <= FTINY) |
219 |
< |
for (i = 0; i < 3; i++) /* ignore texture */ |
221 |
< |
p.rdir[i] = r->rdir[i] + 2.0*r->rod*r->ron[i]; |
219 |
> |
VSUM(p.rdir, r->rdir, r->ron, 2.*r->rod); |
220 |
|
checknorm(p.rdir); |
221 |
|
rayvalue(&p); /* reflected ray value */ |
222 |
|
|
307 |
|
VCOPY(n2, r->ron); |
308 |
|
|
309 |
|
/* first order dispersion approx. */ |
310 |
< |
dtmp1 = DOT(n1, v1); |
311 |
< |
dtmp2 = DOT(n2, v2); |
310 |
> |
dtmp1 = 1./DOT(n1, v1); |
311 |
> |
dtmp2 = 1./DOT(n2, v2); |
312 |
|
for (i = 0; i < 3; i++) |
313 |
< |
dv[i] = v1[i] + v2[i] - n1[i]/dtmp1 - n2[i]/dtmp2; |
313 |
> |
dv[i] = v1[i] + v2[i] - n1[i]*dtmp1 - n2[i]*dtmp2; |
314 |
|
|
315 |
|
if (DOT(dv, dv) <= FTINY) /* null effect */ |
316 |
|
return(0); |
353 |
|
dtmp1 = sqrt(si.dom / v2Xdvv2Xdv / PI); |
354 |
|
|
355 |
|
/* compute first ray */ |
356 |
< |
for (i = 0; i < 3; i++) |
359 |
< |
vtmp2[i] = sray.rdir[i] + dtmp1*vtmp1[i]; |
356 |
> |
VSUM(vtmp2, sray.rdir, vtmp1, dtmp1); |
357 |
|
|
358 |
|
l1 = lambda(m, v2, dv, vtmp2); /* first lambda */ |
359 |
|
if (l1 < 0) |
360 |
|
continue; |
361 |
|
/* compute second ray */ |
362 |
< |
for (i = 0; i < 3; i++) |
366 |
< |
vtmp2[i] = sray.rdir[i] - dtmp1*vtmp1[i]; |
362 |
> |
VSUM(vtmp2, sray.rdir, vtmp1, -dtmp1); |
363 |
|
|
364 |
|
l2 = lambda(m, v2, dv, vtmp2); /* second lambda */ |
365 |
|
if (l2 < 0) |
392 |
|
|
393 |
|
fcross(lrXdv, lr, dv); |
394 |
|
for (i = 0; i < 3; i++) |
395 |
< |
if (lrXdv[i] > FTINY || lrXdv[i] < -FTINY) |
395 |
> |
if ((lrXdv[i] > FTINY) | (lrXdv[i] < -FTINY)) |
396 |
|
break; |
397 |
|
if (i >= 3) |
398 |
|
return(-1); |