| 18 |
|
.I Pabopto2bsdf |
| 19 |
|
takes two or more pab-opto |
| 20 |
|
.I Mountain |
| 21 |
< |
files, each corresponding |
| 22 |
< |
to a different incident beam angle, and produces a |
| 23 |
< |
Scattering Interpolant Representation (SIR) |
| 21 |
> |
files, each nominally containing |
| 22 |
> |
different incident beam angles or sampling patterns, |
| 23 |
> |
and produces a Scattering Interpolant Representation (SIR) |
| 24 |
|
on the standard output for further processing. |
| 25 |
|
The binary SIR contains a Radial Basis Function fitting |
| 26 |
|
each incident BSDF data file |
| 27 |
< |
and a "transport plan" between neighboring RBF |
| 27 |
> |
and a "transport plan" matrix for each pair of neighboring RBF |
| 28 |
|
directions in a spherical Delaunay mesh. |
| 29 |
|
.PP |
| 30 |
|
The SIR provides a complete 4-dimensional |
| 56 |
|
.I \-t |
| 57 |
|
option reverses the assumed sample orientation front-to-back, |
| 58 |
|
and is discussed below under the "#intheta" header entry. |
| 59 |
+ |
.PP |
| 60 |
|
Multi-processing may be used to accelerate the program |
| 61 |
|
on systems that support it via the |
| 62 |
|
.I \-n |
| 111 |
|
.PP |
| 112 |
|
The |
| 113 |
|
.I Mountain |
| 114 |
< |
software operates the pg2 goniophotometer to |
| 115 |
< |
capture BSDF scattering data in separate text files for each incident |
| 116 |
< |
angle, beginning with a header |
| 114 |
> |
program, written by Peter Apian-Bennewitz, stores data taken by |
| 115 |
> |
his pg2 goniophotometer in separate |
| 116 |
> |
BSDF scattering files for each incident angle, beginning with a header |
| 117 |
|
whose lines each start with a pound sign ('#'). |
| 118 |
|
Some header settings require colons and others do not, as indicated below. |
| 119 |
|
The |
