Walking: keep the feet to the ground!?

[fluffouille]

Do you mean that your feet are slipping, or that they go below ground?
If they are slipping, you need to copy/paste the global position and rotation (world coordinates) of the feet for each frame where there is a slip (meaning, you use global coordinates for the keys at the start and end of the movement), then adjust the fcurves - you usually use a linear interpolation to keep the feet from slipping. Otherwise, you could use a lock constraint from Cactus Dan's tools, which allow to lock the global position and rotation automatically.

If the feet are going below ground, then just use a clamp constraint and constrain it to an object to define the height of the feet they shouldn't go below (or do this using Xpresso).

[Cactus Dan]

Howdy,

The CD Lock Constraint in my CD Constraints plugin was specifically designed to allow you to set up a foot lock for a looped walk cycle animation aligned to a spline. ;)

Here is a short tutorial on how to set one up:
http://www.c4dportal.com/cactusdan/FootLock.mov.zip

Adios,
Cactus Dan

[wonderingwout]

WOW, thanx guys, that's exactly what I need!
I'll post the result later on.

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