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.\" RCSid "$Id" |
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.\" RCSid "$Id$" |
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.TH RANIMATE 1 6/24/98 RADIANCE |
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.SH NAME |
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ranimate - compute a RADIANCE animation |
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As in |
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.I pfilt, |
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the exposure setting may be given either as a multiplier or as a |
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number of f-stop adjustments (eg. +2 or -1.5). |
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number of f\-stop adjustments (eg. +2 or \-1.5). |
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Alternatively, a file name may be given, which |
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.I ranimate |
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will interpret as having one exposure value per line per frame, |
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Normally, the transfer command does something such as convert the |
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frames to another format and/or copy them to tape or some other |
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destination device before removing them. |
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The |
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.I fieldcomb(1) |
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script may be used to conveniently combine fields into frames for |
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field-based animations. |
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If this variable is not given, the final frames are left where they |
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are. |
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(See |
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.TP |
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.BR RSH |
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The command to use instead of |
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.I rsh(1) |
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.I ssh(1) |
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to execute commands remotely on another machine. |
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The arguments and behavior of this program must be identical to the UNIX |
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.I rsh |
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.I ssh |
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command, except that the |
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.I -l |
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option will always be used to specify an alternate user name rather than the |
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.I "user@host" |
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convention. |
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Th |
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The |
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.I -l |
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option may or may not appear, but the |
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.I -n |
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option will always be used, and the expected starting directory will |
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be that of the remote user, just as with |
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.I rsh. |
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.I ssh. |
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.TP |
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.BR NEXTANIM |
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This variable specifies the next |
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only, resulting in greater noise than the combination of |
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.I rpict |
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and |
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.I pinterp used otherwise. |
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.I pinterp |
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used otherwise. |
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(The default value for number of samples is 5.)\0 |
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The |
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.I pmblur(1) |
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command is used to generate the given number of additional views for |
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The default fraction is 0, meaning no motion blurring. |
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This option does not currently work with the |
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.I ANIMATE |
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variable, since pinterp only works for static environments. |
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.TP |
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.BR DBLUR |
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This variable specifies the aperture diameter for depth-of-field blurring, |
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in world units. |
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A number of samples may be given as a second argument, which controls the |
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number of additional frames computed and averaged together by |
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.I pinterp. |
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If this number is less than 2, then blurring is performed by |
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.I rpict |
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only, resulting in greater noise than the combination of |
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.I rpict |
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and |
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.I pinterp |
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to average together. |
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The default value is 0, meaning no motion blurring. |
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used otherwise. |
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(The default value for number of samples is 5.)\0 |
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To simulate a particular camera's aperture, divide the focal length of |
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the lens by the f-number, then convert to the corresponding |
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world coordinate units. |
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For example, if you wish to simulate a 50mm lens at f/2.0 in |
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a scene modeled in meters, then you divide 50mm by 2.0 to get 25mm, |
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which corresponds to an effective aperture of 0.025 meters. |
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The default aperture is 0, meaning no depth-of-field blurring. |
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This option does not currently work with the |
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.I ANIMATE |
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variable, since pinterp only works for static environments. |
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would use without actually executing anything, we can invoke it |
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thus: |
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.IP "" .2i |
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ranimate -n -e sample.ran |
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ranimate \-n \-e sample.ran |
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.PP |
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This will print the variables we have given as well as default |
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values |
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RES= 1024 # shoot for 1024x resolution |
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MBLUR= .25 # apply camera motion blur |
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EXP= anim1.exp # adjust exposure according to file |
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pfilt= -r .9 # use Gaussian filtering |
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pfilt= \-r .9 # use Gaussian filtering |
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ARCHIVE= tar cf /dev/nrtape # save original renderings to tape |
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.fi |
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.PP |
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This requirement may be circumvented by substituting the |
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.I on(1) |
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command for |
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.I rsh(1) |
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.I ssh(1) |
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using the |
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.I RSH |
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control variable, or by writing a custom remote execution script. |
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Since most modern machines use IEEE floating point, this is not |
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usually a problem, but it is something to keep in mind. |
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.SH "SEE ALSO" |
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pfilt(1), pinterp(1), pmblur(1), rad(1), |
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ranimove(1), rpict(1), rsh(1), rtrace(1) |
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fieldcomb(1), pfilt(1), pinterp(1), pmblur(1), rad(1), |
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ran2tiff(1), ranimove(1), rpict(1), ssh(1), rtrace(1) |
