167 |
|
} else |
168 |
|
dtmp = 0.0; |
169 |
|
/* gaussian */ |
170 |
< |
dtmp = exp(-dtmp) / (PI * np->pdot * sqrt(au2*av2)); |
170 |
> |
dtmp = exp(-dtmp) * (1.0/PI) * sqrt(-ldot/(np->pdot*au2*av2)); |
171 |
|
/* worth using? */ |
172 |
|
if (dtmp > FTINY) { |
173 |
|
copycolor(ctmp, np->mcolor); |
214 |
|
nd.specfl = 0; |
215 |
|
nd.u_alpha = m->oargs.farg[4]; |
216 |
|
nd.v_alpha = m->oargs.farg[5]; |
217 |
< |
if (nd.u_alpha < FTINY || nd.v_alpha <= FTINY) |
217 |
> |
if (nd.u_alpha <= FTINY || nd.v_alpha <= FTINY) |
218 |
|
objerror(m, USER, "roughness too small"); |
219 |
|
|
220 |
|
nd.pdot = raynormal(nd.pnorm, r); /* perturb normal */ |
276 |
|
agaussamp(r, &nd); |
277 |
|
|
278 |
|
if (nd.rdiff > FTINY) { /* ambient from this side */ |
279 |
< |
ambient(ctmp, r, nd.pnorm); |
279 |
> |
copycolor(ctmp, nd.mcolor); /* modified by material color */ |
280 |
|
if (nd.specfl & SP_RBLT) |
281 |
|
scalecolor(ctmp, 1.0-nd.trans); |
282 |
|
else |
283 |
|
scalecolor(ctmp, nd.rdiff); |
284 |
< |
multcolor(ctmp, nd.mcolor); /* modified by material color */ |
284 |
> |
multambient(ctmp, r, nd.pnorm); |
285 |
|
addcolor(r->rcol, ctmp); /* add to returned color */ |
286 |
|
} |
287 |
|
if (nd.tdiff > FTINY) { /* ambient from other side */ |
291 |
|
bnorm[0] = -nd.pnorm[0]; |
292 |
|
bnorm[1] = -nd.pnorm[1]; |
293 |
|
bnorm[2] = -nd.pnorm[2]; |
294 |
< |
ambient(ctmp, r, bnorm); |
294 |
> |
copycolor(ctmp, nd.mcolor); /* modified by color */ |
295 |
|
if (nd.specfl & SP_TBLT) |
296 |
|
scalecolor(ctmp, nd.trans); |
297 |
|
else |
298 |
|
scalecolor(ctmp, nd.tdiff); |
299 |
< |
multcolor(ctmp, nd.mcolor); /* modified by color */ |
299 |
> |
multambient(ctmp, r, bnorm); |
300 |
|
addcolor(r->rcol, ctmp); |
301 |
|
flipsurface(r); |
302 |
|
} |
352 |
|
register int i; |
353 |
|
/* compute reflection */ |
354 |
|
if ((np->specfl & (SP_REFL|SP_RBLT)) == SP_REFL && |
355 |
< |
rayorigin(&sr, r, SPECULAR, np->rspec) == 0) { |
355 |
> |
rayorigin(&sr, SPECULAR, r, np->scolor) == 0) { |
356 |
|
dimlist[ndims++] = (int)np->mp; |
357 |
|
for (niter = 0; niter < MAXITER; niter++) { |
358 |
|
if (niter) |
380 |
|
for (i = 0; i < 3; i++) |
381 |
|
sr.rdir[i] = r->rdir[i] + d*h[i]; |
382 |
|
if (DOT(sr.rdir, r->ron) > FTINY) { |
383 |
+ |
checknorm(sr.rdir); |
384 |
|
rayvalue(&sr); |
385 |
< |
multcolor(sr.rcol, np->scolor); |
385 |
> |
multcolor(sr.rcol, sr.rcoef); |
386 |
|
addcolor(r->rcol, sr.rcol); |
387 |
|
break; |
388 |
|
} |
390 |
|
ndims--; |
391 |
|
} |
392 |
|
/* compute transmission */ |
393 |
+ |
copycolor(sr.rcoef, np->mcolor); /* modify by material color */ |
394 |
+ |
scalecolor(sr.rcoef, np->tspec); |
395 |
|
if ((np->specfl & (SP_TRAN|SP_TBLT)) == SP_TRAN && |
396 |
< |
rayorigin(&sr, r, SPECULAR, np->tspec) == 0) { |
396 |
> |
rayorigin(&sr, SPECULAR, r, sr.rcoef) == 0) { |
397 |
|
dimlist[ndims++] = (int)np->mp; |
398 |
|
for (niter = 0; niter < MAXITER; niter++) { |
399 |
|
if (niter) |
420 |
|
if (DOT(sr.rdir, r->ron) < -FTINY) { |
421 |
|
normalize(sr.rdir); /* OK, normalize */ |
422 |
|
rayvalue(&sr); |
423 |
< |
scalecolor(sr.rcol, np->tspec); |
421 |
< |
multcolor(sr.rcol, np->mcolor); /* modify */ |
423 |
> |
multcolor(sr.rcol, sr.rcoef); |
424 |
|
addcolor(r->rcol, sr.rcol); |
425 |
|
break; |
426 |
|
} |