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.B octree |
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|
.br |
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.B "rtrace [ options ] \-defaults" |
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+ |
.br |
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+ |
.B "rtrace \-features [feat1 ..]" |
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.SH DESCRIPTION |
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.I Rtrace |
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traces rays from the standard input through the RADIANCE scene given by |
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|
This may be useful for programs that run |
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|
.I rtrace |
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|
as a separate process. |
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< |
In the second form, the default values |
| 40 |
> |
.PP |
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> |
In the second form shown above, the default values |
| 42 |
|
for the options (modified by those options present) |
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|
are printed with a brief explanation. |
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+ |
.PP |
| 45 |
+ |
In the third form, a list of supported features is sent |
| 46 |
+ |
to the standard output, one per line. |
| 47 |
+ |
If additional arguments follow, they are checked for presence in |
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+ |
this list. |
| 49 |
+ |
If a feature includes subfeatures, these may be checked as well by |
| 50 |
+ |
specifying: |
| 51 |
+ |
.nf |
| 52 |
+ |
|
| 53 |
+ |
rtrace -features FeatName=subfeat1,subfeat2 |
| 54 |
+ |
|
| 55 |
+ |
.fi |
| 56 |
+ |
If any named feature or subfeature is missing, an error is |
| 57 |
+ |
reported and the program returns an error status. |
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+ |
If all of the named features are present, a zero status is returned. |
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|
.PP |
| 60 |
|
Options may be given on the command line and/or read from the |
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|
environment and/or read from a file. |
