| 16 |
|
.B "\-o ospec" |
| 17 |
|
][ |
| 18 |
|
.B "\-b binv" |
| 19 |
+ |
][ |
| 20 |
+ |
.B "\-bn nbins" |
| 21 |
|
] |
| 22 |
|
{ |
| 23 |
|
.B "\-m mod | \-M file" |
| 87 |
|
specification if present. |
| 88 |
|
The actual bin number is computed at run time based on ray direction |
| 89 |
|
and surface intersection, as described below. |
| 90 |
+ |
If the number of bins is known in advance, it should be specified with the |
| 91 |
+ |
.I \-bn |
| 92 |
+ |
option, and this is critical for output files containing multiple values |
| 93 |
+ |
per record. |
| 94 |
+ |
Since bin numbers start from 0, the bin count is always equal to |
| 95 |
+ |
the last bin plus 1. |
| 96 |
+ |
Set the this value to 0 if the bin count is unknown (the default). |
| 97 |
|
The most recent |
| 98 |
< |
.I \-b |
| 98 |
> |
.I \-b, |
| 99 |
> |
.I \-bn |
| 100 |
|
and |
| 101 |
|
.I \-o |
| 102 |
|
options to the left of each |
| 214 |
|
.PP |
| 215 |
|
To compute an array of illuminance contributions according to a Tregenza sky: |
| 216 |
|
.IP "" .2i |
| 217 |
< |
rtcontrib -b tbin -o sky.dat -m skyglow -b 0 -o ground.dat -m groundglow |
| 217 |
> |
rtcontrib -I+ -b tbin -o sky.dat -m skyglow -b 0 -o ground.dat -m groundglow |
| 218 |
|
@render.opt -f tregenza.cal scene.oct < test.dat |
| 219 |
|
.SH ENVIRONMENT |
| 220 |
|
RAYPATH path to search for -f and -M files |
