| 19 |
|
#define MINSAMPLES 16 /* minimum number of pretest samples */ |
| 20 |
|
#define STESTMAX 32 /* maximum seeks per sample */ |
| 21 |
|
|
| 22 |
– |
#define FEQ(a,b) ((a)-(b)+FTINY >= 0 && (b)-(a)+FTINY >= 0) |
| 22 |
|
|
| 24 |
– |
|
| 23 |
|
static OBJECT *vobject; /* virtual source objects */ |
| 24 |
|
static int nvobjects = 0; /* number of virtual source objects */ |
| 25 |
|
|
| 31 |
|
|
| 32 |
|
for (i = 4; i--; ) |
| 33 |
|
for (j = 4; j--; ) |
| 34 |
< |
if (!FEQ(m[i][j], i==j)) |
| 34 |
> |
if (!FABSEQ(m[i][j], i==j)) |
| 35 |
|
return(0); |
| 36 |
|
return(1); |
| 37 |
|
} |
| 137 |
|
OBJREC *m; |
| 138 |
|
|
| 139 |
|
i = o->omod; |
| 140 |
< |
m = findmaterial(objptr(i)); |
| 140 |
> |
m = findmaterial(o); |
| 141 |
|
if (m == NULL) |
| 142 |
|
return(objptr(i)); |
| 143 |
|
if (m->otype != MAT_ILLUM || m->oargs.nsargs < 1 || |
| 387 |
|
} |
| 388 |
|
sr.revf = srcvalue; |
| 389 |
|
rayvalue(&sr); /* check sample validity */ |
| 390 |
< |
if ((d = bright(sr.rcol)) <= FTINY) |
| 390 |
> |
if ((d = scolor_mean(sr.rcol)) <= FTINY) |
| 391 |
|
continue; |
| 392 |
|
nok++; /* got sample; check obstructions */ |
| 393 |
|
rayclear(&sr); |
| 394 |
|
sr.revf = raytrace; |
| 395 |
|
rayvalue(&sr); |
| 396 |
< |
if ((d1 = bright(sr.rcol)) > FTINY) { |
| 396 |
> |
if ((d1 = scolor_mean(sr.rcol)) > FTINY) { |
| 397 |
|
if (d - d1 > FTINY) { |
| 398 |
|
#ifdef DEBUG |
| 399 |
|
fprintf(stderr, "\tpartially shadowed\n"); |
