| 89 |
|
.IP |
| 90 |
|
w weight |
| 91 |
|
.IP |
| 92 |
+ |
W contribution |
| 93 |
+ |
.IP |
| 94 |
|
l effective length of ray |
| 95 |
|
.IP |
| 96 |
|
L first intersection distance |
| 109 |
|
.IP |
| 110 |
|
M material name |
| 111 |
|
.IP |
| 112 |
+ |
- dash (end of trace marker) |
| 113 |
+ |
.IP |
| 114 |
|
If the letter 't' appears in |
| 115 |
|
.I spec, |
| 116 |
|
then the fields following will be printed for every ray traced, |
| 117 |
|
not just the final result. |
| 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. |
| 126 |
+ |
E.g., |
| 127 |
+ |
.I \-o-vTmW |
| 128 |
|
.IP |
| 129 |
|
Note that there is no space between this option and its argument. |
| 130 |
|
.TP |
| 138 |
|
.I mod |
| 139 |
|
as its modifier will not be reported to the standard output with |
| 140 |
|
the rest of the rays being traced. |
| 141 |
< |
This option has no effect unless the 't' option has been given as |
| 142 |
< |
part of the output specifier. |
| 141 |
> |
This option has no effect unless either the 't' or 'T' |
| 142 |
> |
option has been given as part of the output specifier. |
| 143 |
|
Any number of excluded modifiers may be given, but each |
| 144 |
|
must appear in a separate option. |
| 145 |
|
.TP |
| 147 |
|
Add |
| 148 |
|
.I mod |
| 149 |
|
to the trace include list, |
| 150 |
< |
so that it will be considered during the indirect calculation. |
| 150 |
> |
so that it will be reported by the trace option. |
| 151 |
|
The program can use either an include list or an exclude |
| 152 |
|
list, but not both. |
| 153 |
|
.TP |
