Juicy Blender Tute 107 - Basic Keyframe Animation 3
Still here? good to see!! :)
Ok, we are up to the stage of having the cubestart
at the right of the screen, move to the left over a
period of 10 frames, then back to the original
position at frame 30.
This was accomplished in the last tute if you've just joined us.
Now we want to make the cube stop still for 10 frames in middle.
It will stay in thesame spot from frame 10 to frame 20
then continue back to its original position at frame 30.
We will duplicateframe 10 and place it at frame 20.
We will also have to do some fine tuning (the fun bit!).
Let's begin...
Open your file from the last tute.
Go to frame 20 and with the IPOCurve window active
press
HOME
to make the curves fill the IPOWindow.
Select the IPOCurve that has the arc in it by
right clicking
it so it changes colour.
Press
TAB
to enter EditIPO mode and
right click
select the
Key at frame 10.
Press
shift D
to duplicate the Keyframe and while
holding
CTRL
so it snaps to position,drag the new
keyframe to frame 20.
Now play back your animation and watch what happens.
You will see that between frames 10 and 20,the cube
doesn't sit still like we thought.
This is because theIPOcurves are set to
AUTO handle
by default.
This means that they automaticly curve to the
smoothest possible arc. We don't want that, we want
the IPO's to curve into frame 10 then sit straight for
the next 10frames, then curve again.
We accomplish this by changing keyframes 10 and 20
to
VECTOR handles
.
Making sure you're still in IPO editmode select keyframes
10
and
20
with a boxselect
BKey
and press
VKey
.
This sets them both to VECTOR handles. Notice how the arc
is now straight.
If you play back your anim now you will see that the box
comes into frame 10, then stops still until frame 20, then
continues on its merry way until frame 30.
Beautiful!
If you wish you can play with the curves to make the box
come into stop smoothly like this. Just grab the handles
on the IPO's and make the curve come in smooth.
Play around andhave fun..