9

Look At Controller 345
orientation setting that can be controlled directly
by the user is Roll, or bank.
Ex ampl e: To pr event fl ipping of tar geted obj ects
during rotation:
1.
Add a Target Camera object (page 2–1371).
2. ActivatetheMovetoolandusethecoor dinate
display (page 3–708) to position the camera and
target at 0,0,0 and 80,0,0,respectively.
3. Add a Dummy object (page 2–16) and position
it at 0,0,0.
4. Use Select And Link to link the camera to the
dummy, and then link the c a mera target to the
dummy. At this point, the dummy is parent to
both the camera a nd its target.
5. Rotate the dummy about its Y axis, and watch
the camera.
As the target passes through the zenith and
nadir of its orbit, the camera flips.
6. SelectthecameraandgototheMotionpanel.
On the Look At Parameters rollout, turn on Use
Target As Up No d e.
7. Again rotate the dummy about its Y axis.
The camera no longer flips.
Interfa ce
After you create or select an object that contains
a Target component, you can access the object’s
Look At properties on the Motion panel. In this
rollout you can change the target, create and delete
animation keys, set the axis, and adjust other,
related p ar ameters.
Cr e a te Ke y—Sets a position, roll (orientation), or
scale key at the current f rame, depending on which
button you click.
Delete K ey—Deletes a position, roll (orientation),
orscalekeyatthecurrentframe,dependingon
which button you click.
Pick Ta rget—Lets you set a target other than the
defaultTargetobject.Clickthisbutton,andthen
select the new object to use a s a target.
Thereafter, the new target controls the object’s
orientation. The original target remains in the
scene, and can be deleted or u sed as a Dummy
helper.