| 138 |
|
static long lastflush = 0; |
| 139 |
|
static RAY thisray; |
| 140 |
|
double h, v; |
| 141 |
– |
register int i; |
| 141 |
|
|
| 142 |
|
if (xmax - xmin <= 0 || ymax - ymin <= 0) { /* empty */ |
| 143 |
|
p->x = xmin; |
| 146 |
|
return; |
| 147 |
|
} |
| 148 |
|
/* jitter ray direction */ |
| 149 |
< |
p->x = h = xmin + (xmax-xmin)*frandom(); |
| 150 |
< |
h /= hresolu; |
| 152 |
< |
p->y = v = ymin + (ymax-ymin)*frandom(); |
| 153 |
< |
v /= vresolu; |
| 149 |
> |
h = xmin + (xmax-xmin)*frandom(); |
| 150 |
> |
v = ymin + (ymax-ymin)*frandom(); |
| 151 |
|
|
| 152 |
< |
viewray(thisray.rorg, thisray.rdir, &ourview, h, v); |
| 156 |
< |
|
| 152 |
> |
viewray(thisray.rorg, thisray.rdir, &ourview, h/hresolu, v/vresolu); |
| 153 |
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 158 |
– |
|
| 154 |
|
rayvalue(&thisray); |
| 155 |
|
|
| 156 |
+ |
p->x = h; |
| 157 |
+ |
p->y = v; |
| 158 |
|
copycolor(p->v, thisray.rcol); |
| 162 |
– |
|
| 159 |
|
scalecolor(p->v, exposure); |
| 160 |
|
|
| 161 |
|
(*dev->paintr)(greyscale?greyof(p->v):p->v, xmin, ymin, xmax, ymax); |
