about squash& stretch

[JoeCosman]

two ways

the easiest one is to have a muscle bone and a target to aim at. muscle bones automatically squash and stretch.

the other is to add the x and z channels to this expression: 1/sqrt([Skeleton_Bone_1:zscale])

path follow animation(meaning it lags behind another object at a distance) uses this expression:
if you want to use a frame offset instead of a distance offset, use:
FollowFrame()

-JoeC

[gntnyng]

JoeCosman, thanks for your reply

your tow solution is usually right work for squash&stretch. but I think I don't say it clearly,

1) I want when Squash it, the box mesial part will bulge; Stretc it, the box mesial part will shink
. like attatched picture showed.

2) eg, I have a motion path curve, I want a box move along this curve , like this style path follow, or other names. and how can i achieve it?

thanks a lot

[SilvioToledo]

On lightwave, just use endomorphs do get this result!

[gntnyng]

ohh... yes, it's the simplest way to get effect, thanks for your hit.

isn't it any direct way to get it?

[dobermunk]

Have you tried the muscle bones or Joe's expression? It doesn't get any easier than that.

Or are you referring to the curves of the objects when squishing?

[JoeCosman]

I think he's referring to curves.

so.... two ways, again.

first is a morph target. model it squashed, or stretched, and the negative value will give the other result.

second is parent a bone to the root, with a metaEffector defining a weight falloff. use the same expression 1/sqrt([Skeleton_Bone_1:zscale]) and add the second bone's X and Y scale.

the metaEffector will define the curve bulge, and the bone will control the amount of scale.


you can also key this by hand, too.

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