| # | Line 4 | Line 4 | |
|---|---|---|
| 4 | vwrays - compute rays for a given picture or view | |
| 5 | .SH SYNOPSIS | |
| 6 | .B vwrays | |
| 7 | < | .B "[ -i -f{a|f|d} | -d ]" |
| 7 | > | .B "[ -i -u -f{a|f|d} | -d ]" |
| 8 | { | |
| 9 | .B "view opts .." | |
| 10 | | | |
| # | Line 25 | Line 25 | The | |
| 25 | .I \-i | |
| 26 | option may be used to specify desired pixel positions on the standard | |
| 27 | input rather than generating all the pixels for a given view. | |
| 28 | + | If the |
| 29 | + | .I \-u |
| 30 | + | option is also given, output will be unbuffered. |
| 31 | .PP | |
| 32 | The | |
| 33 | .I \-f | |
| – | Removed lines |
| + | Added lines |
| < | Changed lines |
| > | Changed lines |