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.\" RCSid "$Id" |
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.\" RCSid "$Id$" |
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.TH RPICT 1 2/26/99 RADIANCE |
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.SH NAME |
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rpict - generate a RADIANCE picture |
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.BI -vd " xd yd zd" |
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Set the view direction vector to |
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.I "xd yd zd". |
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The length of this vector indicates the focal distance as needed by the |
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.I \-pd |
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option, described below. |
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.TP |
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.BI -vu " xd yd zd" |
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Set the view up vector (vertical direction) to |
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.BI -vf \ file |
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Get view parameters from |
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.I file, |
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which may be a picture or a file created by rview (with the "view" command). |
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which may be a picture or a file created by rvu (with the "view" command). |
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.TP |
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.BI -x \ res |
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Set the maximum x resolution to |
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.I \-pm |
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option, to avoid the ghosting effect of too few time samples. |
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.TP |
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.BI -pd \ dia |
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Set the pixel depth-of-field aperture to a diameter of |
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.I dia |
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(in world coordinates). |
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This will be used in conjunction with the view focal distance, indicated |
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by the length of the view direction vector given in the |
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.I \-vd |
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option. |
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It is not advisable to use this option in combination with the |
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.I pdfblur(1) |
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program, since one takes the place of the other. |
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However, it may improve results with |
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.I pdfblur |
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to use a very small fraction with the |
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.I \-pd |
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option, to avoid the ghosting effect of too few samples. |
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.TP |
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.BI -dj \ frac |
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Set the direct jittering to |
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.I frac. |
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.I Getinfo(1) |
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may be used to print out this information. |
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.TP |
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.BI -ae \ mat |
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.BI -ae \ mod |
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Append |
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.I mat |
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.I mod |
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to the ambient exclude list, |
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so that it will not be considered during the indirect calculation. |
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This is a hack for speeding the indirect computation by |
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ignoring certain objects. |
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Any object having |
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.I mat |
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.I mod |
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as its modifier will get the default ambient |
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level rather than a calculated value. |
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Any number of excluded materials may be given, but each |
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Any number of excluded modifiers may be given, but each |
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must appear in a separate option. |
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.TP |
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.BI -ai \ mat |
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.BI -ai \ mod |
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Add |
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.I mat |
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.I mod |
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to the ambient include list, |
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so that it will be considered during the indirect calculation. |
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The program can use either an include list or an exclude |
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.BI -aE \ file |
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Same as |
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.I \-ae, |
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except read materials to be excluded from |
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except read modifiers to be excluded from |
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.I file. |
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The RAYPATH environment variable determines which directories are |
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searched for this file. |
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The material names are separated by white space in the file. |
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The modifier names are separated by white space in the file. |
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.TP |
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.BI -aI \ file |
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Same as |
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.I \-ai, |
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except read materials to be included from |
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except read modifiers to be included from |
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.I file. |
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.TP |
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.BI -me " rext gext bext" |
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.SH ENVIRONMENT |
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RAYPATH the directories to check for auxiliary files. |
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.SH FILES |
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/usr/tmp/rtXXXXXX common header information for picture sequence |
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/tmp/rtXXXXXX common header information for picture sequence |
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.br |
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rfXXXXXX temporary name for recover file |
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.SH DIAGNOSTICS |
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.SH AUTHOR |
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Greg Ward |
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.SH "SEE ALSO" |
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getinfo(1), lookamb(1), oconv(1), pfilt(1), pinterp(1), pmblur(1), |
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printf(3), ra_rgbe(1), rad(1), rtrace(1), rview(1) |
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getinfo(1), lookamb(1), oconv(1), pdfblur(1), pfilt(1), pinterp(1), pmblur(1), |
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printf(3), ra_rgbe(1), rad(1), rtrace(1), rvu(1) |