| 1 |
.\" RCSid "$Id$" |
| 2 |
.TH LAMPCOLOR 1 11/15/93 RADIANCE |
| 3 |
.SH NAME |
| 4 |
lampcolor - compute spectral radiance for diffuse emitter |
| 5 |
.SH SYNOPSIS |
| 6 |
.B lampcolor |
| 7 |
[ |
| 8 |
lamptable |
| 9 |
] |
| 10 |
.SH DESCRIPTION |
| 11 |
.I Lampcolor |
| 12 |
is an interactive program for computing the appropriate color |
| 13 |
for a diffuse emitter. |
| 14 |
From the total lumen output and a simple description of the fixture |
| 15 |
geometry, the radiance for a diffuse fixture is calculated. |
| 16 |
Since most light fixtures are not really diffuse, the preferred |
| 17 |
method is to use luminaire distribution data (see |
| 18 |
.I ies2rad(1)). |
| 19 |
.PP |
| 20 |
A table of lamp colors and depreciation factors is used to get |
| 21 |
the color for a specific lamp type. |
| 22 |
If "white" is specified, the lamp will be uncolored. |
| 23 |
This is probably preferable for scenes with only a single variety |
| 24 |
of lamp in order to produce color-balanced images. |
| 25 |
.SH ENVIRONMENT |
| 26 |
RAYPATH Directories to check for lamp table |
| 27 |
.SH FILES |
| 28 |
lamp.tab Default lamp lookup table |
| 29 |
.SH AUTHOR |
| 30 |
Greg Ward |
| 31 |
.SH ACKNOWLEDGEMENT |
| 32 |
Work on this program was initiated and sponsored by the LESO |
| 33 |
group at EPFL in Switzerland. |
| 34 |
.SH "SEE ALSO" |
| 35 |
ies2rad(1) |
