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.\" RCSid "$Id: bsdfview.1,v 1.4 2017/08/17 21:32:29 greg Exp $" |
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.TH BSDFVIEW 1 8/11/2017 RADIANCE |
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.SH NAME |
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bsdfview - view a BSDF representation |
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.SH SYNOPSIS |
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.B bsdfview |
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[ |
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.B "\-q {Hi|Med|Lo}" |
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][ |
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.B \-t |
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| |
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rad options |
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] |
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input .. |
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.br |
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.SH DESCRIPTION |
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.I Bsdfview |
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renders a BSDF description interactively. |
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This is a script that creates a |
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.I rad(1) |
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input file (RIF), |
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which builds an octree via |
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.I bsdf2rad(1), |
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then renders the scene interactively or calls the |
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.I trad(1) |
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graphical user interface if the |
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.I \-t |
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option is given. |
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.PP |
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The input is either a single XML file, such as might be produced by |
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.I genBSDF(1), |
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.I bsdf2klems(1), |
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or |
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.I bsdf2ttree(1), |
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or up to four scattering interpolation representation (SIR) files, as |
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might be produced by |
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pabopto2bsdf(1). |
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.PP |
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A |
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.I rad |
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input file will be produced, whose name matches the root of |
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the first input file but with any leading path removed (i.e., in |
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the current directory). |
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This RIF may be reused for subsequent viewing and rendering via |
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.I rad |
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without incurring the cost of another call to |
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.I bsdf2rad. |
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.PP |
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The quality preference may be set via the |
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.I \-q |
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option. |
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The number of processors to use may be specified with the |
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.I \-n |
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option. |
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.PP |
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The program creates a number of views accessible via the |
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.I rvu(1) |
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"L" command: |
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.TP 10n |
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.BR def |
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The default view, showing the back and front BRDFs. |
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.TP |
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.BR fr |
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A view of the front reflection hemisphere. |
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.TP |
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.BR br |
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A view of the back reflection hemisphere. |
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.TP |
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.BR ft |
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A fisheye view of the front transmission hemisphere (from underneath). |
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.TP |
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.BR bt |
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A fisheye view of the back transmission hemisphere. |
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.TP |
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.BR pr |
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A parallel view of both reflection hemispheres from directly overhead. |
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.TP |
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.BR pt |
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A parallel view of both transmission hemispheres from directly underneath. |
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.PP |
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Additionally, all the standard views that |
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.I rvu |
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defines will be available (e.g., "xZ", "zl", etc.). |
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.PP |
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Since a |
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.I rad |
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input file is created by the script, it may be used |
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in subsequent runs as long as the temporary files remain. |
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These are typically kept until the next reboot of the operating |
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system, so re-running |
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.I bsdfview |
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with the same arguments will not require re-running |
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.I bsdf2rad |
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or |
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.I oconv. |
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Thus, start-up will be much quicker, unless the temporary files have |
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been removed. |
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In this case, the script may exit with an error indicating that the |
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.I rad |
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input file needs to be removed. |
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.PP |
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This input file may also be re-used directly from the command line using |
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.I rad |
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or |
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.I trad(1). |
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This may be useful for generating RADIANCE pictures corresponding |
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to the above standard views. |
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If no interactive run is desired, start |
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.I bsdfview |
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with the |
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.I "-v 0" |
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option. |
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.SH AUTHOR |
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Greg Ward |
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.SH "SEE ALSO" |
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bsdf2klems(1), bsdf2rad(1), bsdf2ttree(1), genBSDF(1), |
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objview(1), oconv(1), pabopto2bsdf(1), rad(1), rvu(1), trad(1) |
