CGTalk - Scale a bones length via an expression

View Full Version : Scale a bones length via an expression - HOW do you do it?

Tricky4D

07-16-2003, 02:56 PM

Hi all,

Hope you can help out.

I'm trying to scale the length of a bone back and forth automatically by using an expression, then linking it up to a slider to control the speed of the reciprocation.
Like a breathing action.

I've tried using 'sine' function such as "sin (Fc * 4)", but the scale of the bone goes negative, where all i want is positive, 0 to 1 and back.

Many thanks if you can help..

Cheers

marci2001

07-16-2003, 03:44 PM

abs(sin (Fc * 4))

this may return positiv scalars only, I guess

M

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