160 |
|
dtmp = funvalue(sa[0], 5, vldx); |
161 |
|
setcolor(ctmp, dtmp, dtmp, dtmp); |
162 |
|
} |
163 |
< |
if (errno) { |
163 |
> |
if (errno == EDOM || errno == ERANGE) { |
164 |
|
objerror(np->mp, WARNING, "compute error"); |
165 |
|
return; |
166 |
|
} |
170 |
|
/* |
171 |
|
* Compute reflected non-diffuse component. |
172 |
|
*/ |
173 |
< |
if (np->mp->otype == MAT_MFUNC | np->mp->otype == MAT_MDATA) |
173 |
> |
if ((np->mp->otype == MAT_MFUNC) | (np->mp->otype == MAT_MDATA)) |
174 |
|
multcolor(ctmp, np->mcolor); |
175 |
|
dtmp = ldot * omega * np->rspec; |
176 |
|
scalecolor(ctmp, dtmp); |
179 |
|
/* |
180 |
|
* Compute transmitted non-diffuse component. |
181 |
|
*/ |
182 |
< |
if (np->mp->otype == MAT_TFUNC | np->mp->otype == MAT_TDATA) |
182 |
> |
if ((np->mp->otype == MAT_TFUNC) | (np->mp->otype == MAT_TDATA)) |
183 |
|
multcolor(ctmp, np->mcolor); |
184 |
|
dtmp = -ldot * omega * np->tspec; |
185 |
|
scalecolor(ctmp, dtmp); |
204 |
|
register MFUNC *mf; |
205 |
|
register int i; |
206 |
|
/* check arguments */ |
207 |
< |
if (m->oargs.nsargs < 10 | m->oargs.nfargs < 9) |
207 |
> |
if ((m->oargs.nsargs < 10) | (m->oargs.nfargs < 9)) |
208 |
|
objerror(m, USER, "bad # arguments"); |
209 |
|
nd.mp = m; |
210 |
|
nd.pr = r; |
224 |
|
setcolor(nd.tdiff, m->oargs.farg[6], |
225 |
|
m->oargs.farg[7], |
226 |
|
m->oargs.farg[8]); |
227 |
< |
/* get modifiers */ |
227 |
> |
/* get modifiers */ |
228 |
|
raytexture(r, m->omod); |
229 |
|
nd.pdot = raynormal(nd.pnorm, r); /* perturb normal */ |
230 |
|
if (r->rod < 0.0) { /* orient perturbed values */ |
251 |
|
setcolor(ctmp, evalue(mf->ep[3]), |
252 |
|
evalue(mf->ep[4]), |
253 |
|
evalue(mf->ep[5])); |
254 |
< |
if (errno) |
254 |
> |
if (errno == EDOM || errno == ERANGE) |
255 |
|
objerror(m, WARNING, "compute error"); |
256 |
|
else if (rayorigin(&sr, r, TRANS, bright(ctmp)) == 0) { |
257 |
|
if (!(r->crtype & SHADOW) && |
280 |
|
setcolor(ctmp, evalue(mf->ep[0]), |
281 |
|
evalue(mf->ep[1]), |
282 |
|
evalue(mf->ep[2])); |
283 |
< |
if (errno) |
283 |
> |
if (errno == EDOM || errno == ERANGE) |
284 |
|
objerror(m, WARNING, "compute error"); |
285 |
|
else if (rayorigin(&sr, r, REFLECTED, bright(ctmp)) == 0) { |
286 |
|
for (i = 0; i < 3; i++) |
335 |
|
if (r->crtype & SHADOW) |
336 |
|
return(1); |
337 |
|
/* check arguments */ |
338 |
< |
if (m->oargs.nsargs < (hasdata(m->otype)?4:2) | m->oargs.nfargs < |
339 |
< |
(m->otype==MAT_TFUNC|m->otype==MAT_TDATA?6:4)) |
338 |
> |
if ((m->oargs.nsargs < (hasdata(m->otype)?4:2)) | (m->oargs.nfargs < |
339 |
> |
((m->otype==MAT_TFUNC)|(m->otype==MAT_TDATA)?6:4))) |
340 |
|
objerror(m, USER, "bad # arguments"); |
341 |
+ |
/* check for back side */ |
342 |
+ |
if (r->rod < 0.0) { |
343 |
+ |
if (!backvis && m->otype != MAT_TFUNC |
344 |
+ |
&& m->otype != MAT_TDATA) { |
345 |
+ |
raytrans(r); |
346 |
+ |
return(1); |
347 |
+ |
} |
348 |
+ |
raytexture(r, m->omod); |
349 |
+ |
flipsurface(r); /* reorient if backvis */ |
350 |
+ |
} else |
351 |
+ |
raytexture(r, m->omod); |
352 |
+ |
|
353 |
|
nd.mp = m; |
354 |
|
nd.pr = r; |
355 |
|
/* get material color */ |
359 |
|
/* get specular component */ |
360 |
|
nd.rspec = m->oargs.farg[3]; |
361 |
|
/* compute transmittance */ |
362 |
< |
if (m->otype == MAT_TFUNC | m->otype == MAT_TDATA) { |
362 |
> |
if ((m->otype == MAT_TFUNC) | (m->otype == MAT_TDATA)) { |
363 |
|
nd.trans = m->oargs.farg[4]*(1.0 - nd.rspec); |
364 |
|
nd.tspec = nd.trans * m->oargs.farg[5]; |
365 |
|
dtmp = nd.trans - nd.tspec; |
371 |
|
/* compute reflectance */ |
372 |
|
dtmp = 1.0 - nd.trans - nd.rspec; |
373 |
|
setcolor(nd.rdiff, dtmp, dtmp, dtmp); |
362 |
– |
/* check for back side */ |
363 |
– |
if (r->rod < 0.0) { |
364 |
– |
if (!backvis && m->otype != MAT_TFUNC |
365 |
– |
&& m->otype != MAT_TDATA) { |
366 |
– |
raytrans(r); |
367 |
– |
return(1); |
368 |
– |
} |
369 |
– |
flipsurface(r); /* reorient if backvis */ |
370 |
– |
} |
371 |
– |
/* get modifiers */ |
372 |
– |
raytexture(r, m->omod); |
374 |
|
nd.pdot = raynormal(nd.pnorm, r); /* perturb normal */ |
375 |
|
multcolor(nd.mcolor, r->pcol); /* modify material color */ |
376 |
|
multcolor(nd.rdiff, nd.mcolor); |