| 19 |
|
|
| 20 |
|
#include "random.h" |
| 21 |
|
|
| 22 |
< |
#define MINSAMPLES 5 /* minimum number of pretest samples */ |
| 23 |
< |
#define STESTMAX 30 /* maximum seeks per sample */ |
| 22 |
> |
#define MINSAMPLES 16 /* minimum number of pretest samples */ |
| 23 |
> |
#define STESTMAX 32 /* maximum seeks per sample */ |
| 24 |
|
|
| 25 |
|
|
| 26 |
|
double getdisk(); |
| 287 |
|
getplaneq(onorm, o); |
| 288 |
|
/* set number of rays to sample */ |
| 289 |
|
if (source[sn].sflags & SDISTANT) { |
| 290 |
< |
n = (2./3.*PI*PI)*or2/(thescene.cusize*thescene.cusize)* |
| 291 |
< |
vspretest + .5; |
| 290 |
> |
/* 32. == heuristic constant */ |
| 291 |
> |
n = 32.*or2/(thescene.cusize*thescene.cusize)*vspretest + .5; |
| 292 |
|
infront = DOT(onorm, source[sn].sloc) > 0.; |
| 293 |
|
} else { |
| 294 |
|
for (i = 0; i < 3; i++) |
| 319 |
|
#endif |
| 320 |
|
return(f); /* too small a target! */ |
| 321 |
|
} |
| 322 |
+ |
multisamp(offsdir, 3, urand(sn*931+5827+ssn)); |
| 323 |
|
for (i = 0; i < 3; i++) |
| 324 |
< |
offsdir[i] = or*(1. - |
| 324 |
< |
2.*urand(urind(931*i+5827,ssn))); |
| 324 |
> |
offsdir[i] = or*(1. - 2.*offsdir[i]); |
| 325 |
|
ssn++; |
| 326 |
|
for (i = 0; i < 3; i++) |
| 327 |
|
sr.rorg[i] = oc[i] + offsdir[i]; |
