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