| 7 |
|
[ |
| 8 |
|
.B "\-n nprocs" |
| 9 |
|
][ |
| 10 |
+ |
.B \-fo |
| 11 |
+ |
| |
| 12 |
|
.B \-r |
| 13 |
|
][ |
| 14 |
|
.B "\-e expr" |
| 18 |
|
.B "\-o ospec" |
| 19 |
|
][ |
| 20 |
|
.B "\-b binv" |
| 21 |
+ |
][ |
| 22 |
+ |
.B "\-bn nbins" |
| 23 |
|
] |
| 24 |
|
{ |
| 25 |
|
.B "\-m mod | \-M file" |
| 76 |
|
If a destination begins with an exclamation mark ('!'), then |
| 77 |
|
a pipe is opened to a command and data is sent to its standard input. |
| 78 |
|
Otherwise, the destination is treated as a file. |
| 79 |
< |
An existing file of the same name is clobbered, unless the |
| 79 |
> |
An existing file of the same name will not be clobbered, unless the |
| 80 |
> |
.I \-fo |
| 81 |
> |
option is given. |
| 82 |
> |
If instead the |
| 83 |
|
.I \-r |
| 84 |
< |
option is specified, in which case data recovery is attempted. |
| 84 |
> |
option is specified, data recovery is attempted on existing files. |
| 85 |
|
If an output specification contains a "%s" format, this will be |
| 86 |
|
replaced by the modifier name. |
| 87 |
|
The |
| 92 |
|
specification if present. |
| 93 |
|
The actual bin number is computed at run time based on ray direction |
| 94 |
|
and surface intersection, as described below. |
| 95 |
+ |
If the number of bins is known in advance, it should be specified with the |
| 96 |
+ |
.I \-bn |
| 97 |
+ |
option, and this is critical for output files containing multiple values |
| 98 |
+ |
per record. |
| 99 |
+ |
Since bin numbers start from 0, the bin count is always equal to |
| 100 |
+ |
the last bin plus 1. |
| 101 |
+ |
Set the this value to 0 if the bin count is unknown (the default). |
| 102 |
|
The most recent |
| 103 |
< |
.I \-b |
| 103 |
> |
.I \-b, |
| 104 |
> |
.I \-bn |
| 105 |
|
and |
| 106 |
|
.I \-o |
| 107 |
|
options to the left of each |
| 219 |
|
.PP |
| 220 |
|
To compute an array of illuminance contributions according to a Tregenza sky: |
| 221 |
|
.IP "" .2i |
| 222 |
< |
rtcontrib -b tbin -o sky.dat -m skyglow -b 0 -o ground.dat -m groundglow |
| 222 |
> |
rtcontrib -I+ -b tbin -o sky.dat -m skyglow -b 0 -o ground.dat -m groundglow |
| 223 |
|
@render.opt -f tregenza.cal scene.oct < test.dat |
| 224 |
|
.SH ENVIRONMENT |
| 225 |
|
RAYPATH path to search for -f and -M files |
