41 |
|
|
42 |
|
marksources() /* find and mark source objects */ |
43 |
|
{ |
44 |
+ |
int foundsource = 0; |
45 |
|
int i; |
46 |
|
register OBJREC *o, *m; |
47 |
|
register int ns; |
94 |
|
source[ns].sflags |= SSKIP; |
95 |
|
} |
96 |
|
} |
97 |
+ |
if (!(source[ns].sflags & SSKIP)) |
98 |
+ |
foundsource++; |
99 |
|
} |
100 |
< |
if (nsources <= 0) { |
100 |
> |
if (!foundsource) { |
101 |
|
error(WARNING, "no light sources found"); |
102 |
|
return; |
103 |
|
} |
264 |
|
l = m; |
265 |
|
} |
266 |
|
} |
267 |
+ |
if (ncnts == 0) |
268 |
+ |
return; /* no contributions! */ |
269 |
|
/* accumulate tail */ |
270 |
|
for (sn = ncnts-1; sn > 0; sn--) |
271 |
|
cntord[sn-1].brt += cntord[sn].brt; |