22 |
|
|
23 |
|
long nrays = 0L; /* number of rays traced */ |
24 |
|
|
25 |
< |
#define MAXLOOP 1024 /* modifier loop detection */ |
25 |
> |
#define MAXLOOP 128 /* modifier loop detection */ |
26 |
|
|
27 |
|
#define RAYHIT (-1) /* return value for intercepted ray */ |
28 |
|
|
69 |
|
extern int (*trace)(); |
70 |
|
|
71 |
|
if (localhit(r, &thescene) || sourcehit(r)) |
72 |
< |
rayshade(r, r->ro->omod); |
72 |
> |
/* check for clipped object */ |
73 |
> |
if (r->clipset != NULL && inset(r->clipset, r->ro->omod)) |
74 |
> |
raytrans(r); |
75 |
> |
else |
76 |
> |
rayshade(r, r->ro->omod); |
77 |
|
|
78 |
|
if (trace != NULL) |
79 |
|
(*trace)(r); /* trace execution */ |
99 |
|
{ |
100 |
|
static int depth = 0; |
101 |
|
register OBJREC *m; |
98 |
– |
/* check for clipped surface */ |
99 |
– |
if (r->clipset != NULL && r->rot < FHUGE && |
100 |
– |
inset(r->clipset, mod)) { |
101 |
– |
raytrans(r); |
102 |
– |
return; |
103 |
– |
} |
102 |
|
/* check for infinite loop */ |
103 |
|
if (depth++ >= MAXLOOP) |
104 |
|
objerror(r->ro, USER, "possible modifier loop"); |