Graphics Programs Reference
In-Depth Information
9. Select the camera and use
File | Load
| Load Motion File
. Choose the
motion file you created in Step 6 of this
exercise.
10. Change the end frame of the Frame
Slider to
160
, and “scrub” the Frame
Slider along the timeline. You will see
your camera move along the tube
(even though it won't be “looking
where it's going” yet).
11. Under Display Options, give yourself a
Viewport Layout of
2 Left, 1 Right
.
Set the Top Left viewport to
Camera
View
and the Right viewport to
Top
View
and have it
Center Current
Item
. (You can set the Bottom Left
viewport to whatever you'd like.)
12. With the camera still selected, press
<
m
> to bring up the Motion Options
window for the camera. (See Figure
5-24.)
13. Under the Controllers and Limits tab of
the Motion Options window, set both
Heading Controller and Pitch Control-
ler to
Align to Path
. You can then go
back to the IK and Modifiers tab and
adjust how much your camera “antici-
pates” its motion by setting the Align
to Path Look-ahead field. (It's easiest
to use the slider button to the field's
right and “scrub” through your scene,
making little adjustments so the cam-
era gives you what you want.)
If your polygon normals are facing in, your
Camera viewport should be showing you
what it's like to be looking down that tun-
nel. (If they aren't, just switch back to
Modeler, flip them, and return to Layout; if
you're working with the Hub active, when
you get back to Layout, the polys will be
flipped!)
Figure 5-24
