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.\" RCSid "$Id" |
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.\" RCSid "$Id$" |
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.TH PDFBLUR 1 1/24/96 RADIANCE |
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.SH NAME |
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pdfblur - generate views for depth-of-field blurring |
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.SH SYNOPSIS |
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.B pdfblur |
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.B aperture |
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.B distance |
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.B nsamp |
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.B viewfile |
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.SH DESCRIPTION |
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.I viewfile |
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and computes |
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.I nsamp |
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views based on a focus distance of |
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.I distance |
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and an aperture diameter of |
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views based on an aperture diameter of |
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.I aperture |
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(both in world coordinate units). |
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(in world coordinate units) and a focal distance equal to the length of the |
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.I \-vd |
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view direction vector. |
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When rendered and averaged together, these views will result in |
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a picture with the specified depth of field. |
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Either |
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.I nsamp |
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setting somewhere between 5 and 10 to be adequate for most images. |
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Relatively larger values are appropriate for larger aperatures. |
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.PP |
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The |
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.I \-pd |
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option of |
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.I rpict |
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may be used instead or in combination with or instead of |
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.I pdfblur |
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to blur depth-of-field. |
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If used in combination, |
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it is best to set the |
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.I \-pd |
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option to the overall |
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.I aperture |
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divided by |
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.I nsamp |
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to minimize ghosting in the output. |
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.SH EXAMPLES |
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To use |
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.I pinterp |
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.SH BUGS |
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This program really only works with perspective views. |
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.SH "SEE ALSO" |
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pcomb(1), pinterp(1), pmblur(1), rcalc(1), rpict(1), vwright(1) |
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pcomb(1), pinterp(1), pmblur(1), pmdblur(1), rcalc(1), rpict(1), vwright(1) |
