92 |
|
register int i; |
93 |
|
|
94 |
|
if (h <= -hlim) { /* left region */ |
95 |
< |
d = (double)(h+hlim)/sampdens; |
96 |
< |
if (d <= -1.0+FTINY) |
95 |
> |
d = (double)(-h-hlim)/sampdens; |
96 |
> |
if (d >= 1.0-FTINY) |
97 |
|
return; |
98 |
|
tanb = d/sqrt(1.0-d*d); |
99 |
|
for (i = 0; i < nglardirs; i++) { |
100 |
|
d = indirect[i].lcos - tanb*indirect[i].lsin; |
101 |
|
if (d > 0.0) { |
102 |
|
indirect[i].sum += d * br; |
103 |
< |
indirect[i].n++; |
103 |
> |
indirect[i].n += d; |
104 |
|
} |
105 |
|
} |
106 |
|
return; |
107 |
|
} |
108 |
|
if (h >= hlim) { /* right region */ |
109 |
< |
d = (double)(h-hlim)/sampdens; |
110 |
< |
if (d >= 1.0-FTINY) |
109 |
> |
d = (double)(-h+hlim)/sampdens; |
110 |
> |
if (d <= -1.0+FTINY) |
111 |
|
return; |
112 |
|
tanb = d/sqrt(1.0-d*d); |
113 |
|
for (i = 0; i < nglardirs; i++) { |
114 |
|
d = indirect[i].rcos - tanb*indirect[i].rsin; |
115 |
|
if (d > 0.0) { |
116 |
|
indirect[i].sum += d * br; |
117 |
< |
indirect[i].n++; |
117 |
> |
indirect[i].n += d; |
118 |
|
} |
119 |
|
} |
120 |
|
return; |
124 |
|
d = cos(h_theta(h) - indirect[i].theta); |
125 |
|
if (d > 0.0) { |
126 |
|
indirect[i].sum += d * br; |
127 |
< |
indirect[i].n++; |
127 |
> |
indirect[i].n += d; |
128 |
|
} |
129 |
|
} |
130 |
|
} |
359 |
|
register struct source *s; |
360 |
|
{ |
361 |
|
FVECT dir; |
362 |
< |
register int i, n; |
362 |
> |
double d; |
363 |
> |
register int i; |
364 |
|
|
365 |
|
for (i = 0; i < nglardirs; i++) { |
366 |
|
spinvector(dir, ourview.vdir, ourview.vup, indirect[i].theta); |
367 |
< |
n = DOT(dir,s->dir)*s->dom*(sampdens*sampdens) + 0.5; |
368 |
< |
if (n == 0) |
367 |
> |
d = DOT(dir,s->dir)*s->dom*(sampdens*sampdens); |
368 |
> |
if (d <= 0.0) |
369 |
|
continue; |
370 |
< |
indirect[i].sum += n * s->brt; |
371 |
< |
indirect[i].n += n; |
370 |
> |
indirect[i].sum += d * s->brt; |
371 |
> |
indirect[i].n += d; |
372 |
|
} |
373 |
|
for ( ; s->first != NULL; s->first = s->first->next) |
374 |
|
free((char *)s->first); |