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.\" RCSid "$Id$" |
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.TH RTCONTRIB 1 5/25/05 RADIANCE |
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.TH RCONTRIB 1 5/25/05 RADIANCE |
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.SH NAME |
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rcontrib - compute contribution coefficients in a RADIANCE scene |
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.SH SYNOPSIS |
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.br |
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.B "rcontrib [ options ] \-defaults" |
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.SH DESCRIPTION |
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.I Rtcontrib |
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.I Rcontrib |
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computes ray coefficients |
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for objects whose modifiers are named in one or more |
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.I \-m |
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can be used to compute arbitrary input-output relationships in optical |
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systems, such as luminaires, light pipes, and shading devices. |
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.PP |
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.I Rtcontrib |
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.I Rcontrib |
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calls |
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.I rtrace(1) |
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with the \-oTW (or \-oTV) option to calculate the daughter ray |