| 20 |
|
unsigned long raynum = 0; /* next unique ray number */ |
| 21 |
|
unsigned long nrays = 0; /* number of calls to localhit */ |
| 22 |
|
|
| 23 |
< |
static FLOAT Lambfa[5] = {PI, PI, PI, 0.0, 0.0}; |
| 23 |
> |
static RREAL Lambfa[5] = {PI, PI, PI, 0.0, 0.0}; |
| 24 |
|
OBJREC Lamb = { |
| 25 |
|
OVOID, MAT_PLASTIC, "Lambertian", |
| 26 |
|
{0, 5, NULL, Lambfa}, NULL, |
| 228 |
|
} |
| 229 |
|
|
| 230 |
|
|
| 231 |
+ |
void |
| 232 |
|
raytexture(r, mod) /* get material modifiers */ |
| 233 |
|
RAY *r; |
| 234 |
< |
int mod; |
| 234 |
> |
OBJECT mod; |
| 235 |
|
{ |
| 236 |
|
register OBJREC *m; |
| 237 |
|
#if MAXLOOP |
| 278 |
|
/* compute foreground and background */ |
| 279 |
|
foremat = backmat = 0; |
| 280 |
|
/* foreground */ |
| 281 |
< |
copystruct(&fr, r); |
| 281 |
> |
fr = *r; |
| 282 |
|
if (coef > FTINY) |
| 283 |
|
foremat = rayshade(&fr, fore); |
| 284 |
|
/* background */ |
| 285 |
< |
copystruct(&br, r); |
| 285 |
> |
br = *r; |
| 286 |
|
if (coef < 1.0-FTINY) |
| 287 |
|
backmat = rayshade(&br, back); |
| 288 |
|
/* check for transparency */ |
| 289 |
< |
if (backmat ^ foremat) |
| 289 |
> |
if (backmat ^ foremat) { |
| 290 |
|
if (backmat && coef > FTINY) |
| 291 |
|
raytrans(&fr); |
| 292 |
|
else if (foremat && coef < 1.0-FTINY) |
| 293 |
|
raytrans(&br); |
| 294 |
+ |
} |
| 295 |
|
/* mix perturbations */ |
| 296 |
|
for (i = 0; i < 3; i++) |
| 297 |
|
r->pert[i] = coef*fr.pert[i] + (1.0-coef)*br.pert[i]; |
| 488 |
|
} |
| 489 |
|
cxset[0] = 0; |
| 490 |
|
raymove(curpos, cxset, sflags, r, scene); |
| 491 |
< |
return(r->ro != NULL & r->ro != &Aftplane); |
| 491 |
> |
return((r->ro != NULL) & (r->ro != &Aftplane)); |
| 492 |
|
} |
| 493 |
|
|
| 494 |
|
|
