157 |
|
As in |
158 |
|
.I pfilt, |
159 |
|
the exposure setting may be given either as a multiplier or as a |
160 |
< |
number of f-stop adjustments (eg. +2 or -1.5). |
160 |
> |
number of f\-stop adjustments (eg. +2 or \-1.5). |
161 |
|
Alternatively, a file name may be given, which |
162 |
|
.I ranimate |
163 |
|
will interpret as having one exposure value per line per frame, |
271 |
|
Normally, the transfer command does something such as convert the |
272 |
|
frames to another format and/or copy them to tape or some other |
273 |
|
destination device before removing them. |
274 |
+ |
The |
275 |
+ |
.I fieldcomb(1) |
276 |
+ |
script may be used to conveniently combine fields into frames for |
277 |
+ |
field-based animations. |
278 |
|
If this variable is not given, the final frames are left where they |
279 |
|
are. |
280 |
|
(See |
283 |
|
.TP |
284 |
|
.BR RSH |
285 |
|
The command to use instead of |
286 |
< |
.I rsh(1) |
286 |
> |
.I ssh(1) |
287 |
|
to execute commands remotely on another machine. |
288 |
|
The arguments and behavior of this program must be identical to the UNIX |
289 |
< |
.I rsh |
289 |
> |
.I ssh |
290 |
|
command, except that the |
291 |
|
.I -l |
292 |
|
option will always be used to specify an alternate user name rather than the |
293 |
|
.I "user@host" |
294 |
|
convention. |
295 |
< |
Th |
295 |
> |
The |
296 |
|
.I -l |
297 |
|
option may or may not appear, but the |
298 |
|
.I -n |
299 |
|
option will always be used, and the expected starting directory will |
300 |
|
be that of the remote user, just as with |
301 |
< |
.I rsh. |
301 |
> |
.I ssh. |
302 |
|
.TP |
303 |
|
.BR NEXTANIM |
304 |
|
This variable specifies the next |
378 |
|
.I pinterp |
379 |
|
used otherwise. |
380 |
|
(The default value for number of samples is 5.)\0 |
381 |
+ |
To simulate a particular camera's aperture, divide the focal length of |
382 |
+ |
the lens by the f-number, then convert to the corresponding |
383 |
+ |
world coordinate units. |
384 |
+ |
For example, if you wish to simulate a 50mm lens at f/2.0 in |
385 |
+ |
a scene modeled in meters, then you divide 50mm by 2.0 to get 25mm, |
386 |
+ |
which corresponds to an effective aperture of 0.025 meters. |
387 |
|
The default aperture is 0, meaning no depth-of-field blurring. |
388 |
|
This option does not currently work with the |
389 |
|
.I ANIMATE |
489 |
|
would use without actually executing anything, we can invoke it |
490 |
|
thus: |
491 |
|
.IP "" .2i |
492 |
< |
ranimate -n -e sample.ran |
492 |
> |
ranimate \-n \-e sample.ran |
493 |
|
.PP |
494 |
|
This will print the variables we have given as well as default |
495 |
|
values |
520 |
|
RES= 1024 # shoot for 1024x resolution |
521 |
|
MBLUR= .25 # apply camera motion blur |
522 |
|
EXP= anim1.exp # adjust exposure according to file |
523 |
< |
pfilt= -r .9 # use Gaussian filtering |
523 |
> |
pfilt= \-r .9 # use Gaussian filtering |
524 |
|
ARCHIVE= tar cf /dev/nrtape # save original renderings to tape |
525 |
|
.fi |
526 |
|
.PP |
585 |
|
This requirement may be circumvented by substituting the |
586 |
|
.I on(1) |
587 |
|
command for |
588 |
< |
.I rsh(1) |
588 |
> |
.I ssh(1) |
589 |
|
using the |
590 |
|
.I RSH |
591 |
|
control variable, or by writing a custom remote execution script. |
609 |
|
Since most modern machines use IEEE floating point, this is not |
610 |
|
usually a problem, but it is something to keep in mind. |
611 |
|
.SH "SEE ALSO" |
612 |
< |
pfilt(1), pinterp(1), pmblur(1), rad(1), |
613 |
< |
ranimove(1), rpict(1), rsh(1), rtrace(1) |
612 |
> |
fieldcomb(1), pfilt(1), pinterp(1), pmblur(1), rad(1), |
613 |
> |
ran2tiff(1), ranimove(1), rpict(1), ssh(1), rtrace(1) |