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NAME

lampcolor - compute spectral radiance for diffuse emitter

SYNOPSIS

lampcolor [ lamptable ]

DESCRIPTION

Lampcolor is an interactive program for computing the appropriate color for a diffuse emitter. From the total lumen output and a simple description of the fixture geometry, the radiance for a diffuse fixture is calculated. Since most light fixtures are not really diffuse, the preferred method is to use luminaire distribution data (see ies2rad(1)).

A table of lamp colors and depreciation factors is used to get the color for a specific lamp type. If "white" is specified, the lamp will be uncolored. This is probably preferable for scenes with only a single variety of lamp in order to produce color-balanced images.

ENVIRONMENT

RAYPATH
Directories to check for lamp table

FILES

lamp.tab
Default lamp lookup table

AUTHOR

Greg Ward

ACKNOWLEDGEMENT

Work on this program was initiated and sponsored by the LESO group at EPFL in Switzerland.

SEE ALSO

ies2rad(1)


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LAMPCOLOR(1) RADIANCE (11/15/93) LAMPCOLOR(1)
Page 1 (printed 7/17/96)

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