| 42 |
|
A matrix may be read from the standard input using a hyphen by itself ('-') |
| 43 |
|
in the appropriate place on the command line. |
| 44 |
|
.PP |
| 45 |
+ |
Any of the matrix inputs may be read from a command |
| 46 |
+ |
instead of a file by |
| 47 |
+ |
using quotes and a beginning exclamation point ('!'). |
| 48 |
+ |
.PP |
| 49 |
|
Two special cases are handled for component matrices that are either |
| 50 |
|
XML files containing BTDF data, or Radiance picture files. |
| 51 |
|
In the first case, a BSDF library is used to load and interpret the |
| 52 |
|
transmission matrix. |
| 53 |
< |
(XML files cannot be read from the standard input.)\0 |
| 53 |
> |
(XML files cannot be read from the standard input or from a command.)\0 |
| 54 |
|
In the second case, the RGBE or XYZE values are loaded in a 3-component |
| 55 |
|
matrix where the number of columns match the X-dimension of the picture, and |
| 56 |
|
the number of rows match the Y-dimension. |
