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TUTOR4.TXT
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_____________________________
Tutorial #4
Vistapro User Manual
_____________________________
TUTORIAL #4 - ANIMATION
Vistapro has the ability to do animated fly throughs of
landscapes. This is done by producing a series of images with a
slightly different camera and/or target location for each
frame. Sitting and rendering each frame could get tedious, so
Vistapro provides the ability to run the rendering process by
way of a script. Each of the camera and target locations are
contained in a script file.
Animations can be saved as a series of PCX files or in the
VANIM format. Animations saved as a VANIM file can be played
back by using the VIEWER program that was distributed with
Vistapro. To view a PCX animation, you would need to have a
different software package that allowed loading and viewing a
series of PCX files as an animation.
CREATING A SCRIPT
-----------------
There are two ways to create a script file in Vistapro. The
first is to use the Generate option from the script menu.
Choosing this option will result in a script file that starts
with your current camera and target position and with each
frame moves the camera toward the target. The script generation
ends when the camera and target locations are the same.
The second way to create a script file is by manually
specifying the camera and target location for each image
(frame).
Choose the Create option from the Script menu. Vistapro will
create a blank script file using the name that you specify.
The next thing to do is to begin adding frames to your script
file. Position the camera and the target at the position where
you want your flight to begin. Next choose the Add option from
the script menu to have the camera and target positions added
to the script file. Now reposition the camera and target
slightly along the path that you plan to take, and repeat the
Add option. Repeat this until your camera has flown the desired
path.
If you want to add on to a script file that was created during
a previous session, then choose the Open option from the Script
menu and specify the script name. You can then continue to Add
on to the script file.
After a script has been created, the camera positions can be
viewed by choosing the Preview option from the Script menu.
PREVIEWING A SCRIPT
-------------------
Choosing the Preview option from the Script menu and specifying
an existing script name will result in a series of little black
dots being displayed on the topographical map. Each of these
dots represents a camera location within the script.
CREATING A VANIM FILE
---------------------
Let's create a VANIM animation. Load a landscape and create a
script using one of the methods described earlier. For this
tutorial, call the script:
TESTSCR.SCR
Under the GrMode menu, pick the VANIM 320X200 option. This is
the only graphics mode in which VANIM animations can be
created. Picking any of the other options will result in a
series of PCX files rather than one VANIM file.
At this point adjust the settings (poly, shading, timber line,
snow line, etc.) to the desired values.
Now select the Execute option from the Script menu. Specify the
name of the script that you created earlier (TESTSCR.SCR). Next
specify the name that you would like the VANIM to be stored
under. Call it:
TESTPIC.VAN
Vistapro will now begin rendering each frame in the script
file.This can take some time depending on the speed of your
machine and the number of frames in the animation.
VIEWING A VANIM FILE
--------------------
After your machine is finished rendering each of the frames,
you are ready to view the animation.
To do this, you must be at the DOS prompt and in the directory
that you specified for the file TESTPIC.VAN. The file VIEWER
must also be present in the directory (unless there is a DOS
path to it). Pick the Quit option from the Projects menu to
exit Vistapro. Type:
VIEWER TESTPIC.VAN
followed by pressing the ENTER key. You will now be viewing
your animation. Use the numbers on your keyboard to change the
playback speed. To exit the VIEWER program, press the ESC key.
Reference the Animation Viewer section of this manual for more
details on keyboard controls.
*** End of Tutorial #4 ***