| 171 |
|
option. |
| 172 |
|
Since bin numbers start from zero, the bin count is always equal to |
| 173 |
|
the last bin plus one. |
| 174 |
– |
Set the this value to zero if the bin count is unknown (the default). |
| 174 |
|
The most recent |
| 175 |
|
.I \-b, |
| 176 |
|
.I \-bn |
| 203 |
|
option. |
| 204 |
|
The computed bin value will be |
| 205 |
|
rounded to the nearest whole number. |
| 206 |
+ |
(Negative bin values will be silently ignored.)\0 |
| 207 |
+ |
For a single bin, you may specify |
| 208 |
+ |
.I "\-b 0", |
| 209 |
+ |
which is the default. |
| 210 |
|
This mechanism allows the user to define precise regions or directions |
| 211 |
|
they wish to accumulate, such as the Tregenza sky discretization, |
| 212 |
|
which would be otherwise impossible to specify |
| 215 |
|
described in the |
| 216 |
|
.I rcalc(1) |
| 217 |
|
man page. |
| 218 |
< |
Unlike |
| 218 |
> |
Like |
| 219 |
|
.I rcalc, |
| 220 |
|
.I rcontrib |
| 221 |
|
will search the RADIANCE library directories for each file given in a |
| 290 |
|
.PP |
| 291 |
|
To compute an array of illuminance contributions according to a Tregenza sky: |
| 292 |
|
.IP "" .2i |
| 293 |
< |
rcontrib \-I+ \-b tbin \-o sky.dat \-m skyglow \-b 0 \-o ground.dat \-m groundglow |
| 294 |
< |
@render.opt \-f tregenza.cal scene.oct < test.dat |
| 293 |
> |
rcontrib \-I+ \-f tregenza.cal \-b tbin \-bn Ntbins \-o sky.dat \-m skyglow |
| 294 |
> |
\-b 0 \-o ground.dat \-m groundglow @render.opt scene.oct < test.dat |
| 295 |
|
.SH ENVIRONMENT |
| 296 |
|
RAYPATH path to search for \-f and \-M files |
| 297 |
|
.SH AUTHOR |
