8

IFL Files 667
5.
In the Image File List Control dialog, cho ose
the options you want, and then click OK.
Tip: Use the Browse button to set the Target Path
to a directory on your hard disk. Do not set this
path to a CD-ROM drive, because you cannot
save the file there.
The Image File List (IFL) file is saved to the
target directory.
6. In the file selector dialog, click OK.
This assigns the new ly created IFL file as the
bitmap.
Example: To select a set of still images as a viewport
backgr oun d:
1.
Activatetheviewportwhereyouwantthe
animated background.
2. Choose Views menu > Viewport Background.
3. In the Background Source group, click Files.
A Viewport Background dialog is displayed.
4. On Select Background Image dialog, use the
Look In field to navigate to the director y
containing the files you want to use for the
sequence.
If necessary, change the fi le type to match the
file name extension of the sequence, or choose
All Formats.
Note: The Select Background Image File dialog
usesthelastlocationwhereabitmapwas
chosen, rather than the default bitmap path
defined in Customize menu > Configure User
Paths.
5. ConstructanIFLfileasdescribedinthe
previous procedure.
6. On the Select Background Image dialog, click
OK.
The IFL file now provides the background for
the viewpor t.
Tip: The viewport background does not render.
To render the IFL file’s animation, assign the
IFL file as a rendering environment. (See the
following procedure.)
To render the f rames in an IFL file as a mov ie (AVI,
FLC, or MOV format ):
1.
Choose Render ing > Environment.
2. On the Environment dialog, click Environment
Map.
3. OntheMaterial/MapBrowser,chooseBitmap,
and then click OK.
4. On the Select Bitmap Image File dialog, choose
the IFL file, and then click OK.
5. Click Time Configuration, and use
the Time Configuration dialog to ma ke the
animation length match the number of frames
specified in the IFL file.
6. Render a viewport to a movie-format file.
Tip: The aspect ratio of the rendered movie
should match the aspect ratio of the frames in
the IFL file.
Notes
• If the IFL generator has a name conflict with an
existing IFL file, it will increment the new file’s
name to avoid over writing the existing file.
• If the IFL generator has any problems with
writeaccesswhiletryingtocreatetheIFLfile,
the process will fail and the IFL file won’t be
created. Therefore, automatic IFL generation
won’t work when reading bitmaps from a
CD-ROM. You need to copy them to a directory
on your hard disk first. Likewise, automatic IFL
generation won’t work on network drives to
which you don’t ha v e write access.