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, |
174 |
|
} |
175 |
|
******/ |
176 |
|
/* hack for irradiance calculation */ |
177 |
< |
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS))) { |
177 |
> |
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS)) && |
178 |
> |
m->otype != MAT_CLIP && |
179 |
> |
(ofun[m->otype].flags & (T_M|T_X))) { |
180 |
|
if (irr_ignore(m->otype)) { |
181 |
|
#if MAXLOOP |
182 |
|
depth--; |
229 |
|
} |
230 |
|
|
231 |
|
|
232 |
+ |
void |
233 |
|
raytexture(r, mod) /* get material modifiers */ |
234 |
|
RAY *r; |
235 |
< |
int mod; |
235 |
> |
OBJECT mod; |
236 |
|
{ |
237 |
|
register OBJREC *m; |
238 |
|
#if MAXLOOP |
279 |
|
/* compute foreground and background */ |
280 |
|
foremat = backmat = 0; |
281 |
|
/* foreground */ |
282 |
< |
copystruct(&fr, r); |
282 |
> |
fr = *r; |
283 |
|
if (coef > FTINY) |
284 |
|
foremat = rayshade(&fr, fore); |
285 |
|
/* background */ |
286 |
< |
copystruct(&br, r); |
286 |
> |
br = *r; |
287 |
|
if (coef < 1.0-FTINY) |
288 |
|
backmat = rayshade(&br, back); |
289 |
|
/* check for transparency */ |
290 |
< |
if (backmat ^ foremat) |
290 |
> |
if (backmat ^ foremat) { |
291 |
|
if (backmat && coef > FTINY) |
292 |
|
raytrans(&fr); |
293 |
|
else if (foremat && coef < 1.0-FTINY) |
294 |
|
raytrans(&br); |
295 |
+ |
} |
296 |
|
/* mix perturbations */ |
297 |
|
for (i = 0; i < 3; i++) |
298 |
|
r->pert[i] = coef*fr.pert[i] + (1.0-coef)*br.pert[i]; |
489 |
|
} |
490 |
|
cxset[0] = 0; |
491 |
|
raymove(curpos, cxset, sflags, r, scene); |
492 |
< |
return(r->ro != NULL & r->ro != &Aftplane); |
492 |
> |
return((r->ro != NULL) & (r->ro != &Aftplane)); |
493 |
|
} |
494 |
|
|
495 |
|
|