| 145 |
|
r->robj = OVOID; |
| 146 |
|
r->ro = NULL; |
| 147 |
|
r->rox = NULL; |
| 148 |
< |
r->rt = r->rot = FHUGE; |
| 148 |
> |
r->rxt = r->rmt = r->rot = FHUGE; |
| 149 |
|
r->pert[0] = r->pert[1] = r->pert[2] = 0.0; |
| 150 |
|
r->uv[0] = r->uv[1] = 0.0; |
| 151 |
|
setcolor(r->pcol, 1.0, 1.0, 1.0); |
| 152 |
+ |
setcolor(r->mcol, 0.0, 0.0, 0.0); |
| 153 |
|
setcolor(r->rcol, 0.0, 0.0, 0.0); |
| 154 |
|
} |
| 155 |
|
|
| 196 |
|
VCOPY(tr.rdir, r->rdir); |
| 197 |
|
rayvalue(&tr); |
| 198 |
|
copycolor(r->rcol, tr.rcol); |
| 199 |
< |
r->rt = r->rot + tr.rt; |
| 199 |
> |
r->rmt = r->rot + tr.rmt; |
| 200 |
> |
r->rxt = r->rot + tr.rxt; |
| 201 |
|
} |
| 202 |
|
|
| 203 |
|
|
| 202 |
– |
/* Macro for test to see if BSDF material uses proxy */ |
| 203 |
– |
#define isBSDFproxy(m) ((m)->otype == MAT_BSDF && (m)->oargs.nsargs && \ |
| 204 |
– |
strcmp((m)->oargs.sarg[0], "0")) |
| 205 |
– |
|
| 206 |
– |
|
| 204 |
|
int |
| 205 |
|
rayshade( /* shade ray r with material mod */ |
| 206 |
|
RAY *r, |
| 209 |
|
{ |
| 210 |
|
OBJREC *m; |
| 211 |
|
|
| 212 |
< |
r->rt = r->rot; /* preset effective ray length */ |
| 212 |
> |
r->rxt = r->rmt = r->rot; /* preset effective ray length */ |
| 213 |
|
for ( ; mod != OVOID; mod = m->omod) { |
| 214 |
|
m = objptr(mod); |
| 215 |
|
/****** unnecessary test since modifier() is always called |
| 221 |
|
/* hack for irradiance calculation */ |
| 222 |
|
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS)) && |
| 223 |
|
(ofun[m->otype].flags & (T_M|T_X)) && |
| 224 |
< |
m->otype != MAT_CLIP && |
| 225 |
< |
!isBSDFproxy(m)) { |
| 229 |
< |
if (irr_ignore(m->otype)) { |
| 224 |
> |
m->otype != MAT_CLIP) { |
| 225 |
> |
if (istransp(m->otype) || isBSDFproxy(m)) { |
| 226 |
|
raytrans(r); |
| 227 |
|
return(1); |
| 228 |
|
} |
| 308 |
|
) |
| 309 |
|
{ |
| 310 |
|
RAY fr, br; |
| 311 |
+ |
double mfore, mback; |
| 312 |
|
int foremat, backmat; |
| 313 |
|
int i; |
| 314 |
|
/* bound coefficient */ |
| 355 |
|
scalecolor(br.rcol, 1.0-coef); |
| 356 |
|
copycolor(r->rcol, fr.rcol); |
| 357 |
|
addcolor(r->rcol, br.rcol); |
| 358 |
< |
r->rt = bright(fr.rcol) > bright(br.rcol) ? fr.rt : br.rt; |
| 358 |
> |
mfore = bright(fr.mcol); mback = bright(br.mcol); |
| 359 |
> |
r->rmt = mfore > mback ? fr.rmt : br.rmt; |
| 360 |
> |
r->rxt = bright(fr.rcol)-mfore > bright(br.rcol)-mback ? |
| 361 |
> |
fr.rxt : br.rxt; |
| 362 |
|
return(1); |
| 363 |
|
} |
| 364 |
|
|