| 109 |
|
.IP |
| 110 |
|
M material name |
| 111 |
|
.IP |
| 112 |
< |
- dash (end of trace marker) |
| 112 |
> |
~ tilde (end of trace marker) |
| 113 |
|
.IP |
| 114 |
|
If the letter 't' appears in |
| 115 |
|
.I spec, |
| 118 |
|
If the capital letter 'T' is given instead of 't', then all rays will |
| 119 |
|
be reported, including shadow testing rays to light sources. |
| 120 |
|
Spawned rays are indented one tab for each level. |
| 121 |
< |
The dash marker ('-') is a handy way of differentiating the final ray |
| 122 |
< |
value from traced values preceeding it, and should appear immediately |
| 123 |
< |
after the |
| 124 |
< |
.I \-o |
| 125 |
< |
and before the rest of the specification. |
| 121 |
> |
The tilde marker ('~') is a handy way of differentiating the final ray |
| 122 |
> |
value from daughter values in a traced ray tree, and usually appears |
| 123 |
> |
right before the 't' or 'T' output flags. |
| 124 |
|
E.g., |
| 125 |
< |
.I \-o-vTmW |
| 125 |
> |
.I \-ov~TmW |
| 126 |
> |
will emit a tilde followed by a tab at the end of each trace, |
| 127 |
> |
which can be easily distinguished even in binary output. |
| 128 |
|
.IP |
| 129 |
|
Note that there is no space between this option and its argument. |
| 130 |
|
.TP |
| 622 |
|
Greg Ward |
| 623 |
|
.SH "SEE ALSO" |
| 624 |
|
getinfo(1), lookamb(1), oconv(1), pfilt(1), pinterp(1), |
| 625 |
< |
pvalue(1), rpict(1), rvu(1), vwrays(1), ximage(1) |
| 625 |
> |
pvalue(1), rpict(1), rtcontrib(1), rvu(1), vwrays(1), ximage(1) |
