Morphed Letters
30-Nov-92 23:00:51
Sb: #28290-Morphed Letters
Fm: Yost Group 76702,413
To: Mitchell Waite 75146,3515
It's bad practice to lock the morph keys by copying the first key to all
the other keys. You're not only reducing the number of interpolated frames
that way, but you're also blowing any future opportunity to rescale the
overall time of the animation without having to screw around with all those
keys.
The reason why the morph started before frame 12 is because the default
splined motion (for all keys) causes a little bit of undershoot and
overshoot to happen unless you compensate for it. That applies to Position,
Rotation, Scaling, Lighting, AND Morphing keys. This is explained in the
reference manual on pages 8-33 through 8-36, and there's an entire tutorial
(#12) about dealing with the same issue (as it applies to Position and
Scaling). Morphing is no different.
The correct way to start a splined motion precisely on a key is described
in the Note about Key Bias on page 8-36 of the reference manual. And as it
says in the second paragraph of page 8-34, "If you want completely linear
motion (such as for a machine), set the continuity to 0…" Of course, if
you want this to affect ALL keys (not just the one at frame 12, for
example), you also turn on the G button beside it to make the continuity
adjustment global.
Simple! You only have to be a mutant to do it!
– G