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Very impressive. I can see a lot of hard work went into this one - how
did you do it?
"Greg M. Johnson" wrote:
>
> DOES ANYBODY OUT THERE HAVE IK LEGS?
> I mean, does your hip levitate off the ground by some sort of magic, and
> your legs occasionally pick up your feet to move them along and drop
> them? Kind of like a flying car that keeps dropping sandbags, lifting
> them, and throwing them ahead as it glides along.
>
> OR ARE YOU LEGS FK?
> That is, is your hip structurally supported off the ground, while one
> foot basically stays put on the ground due to friction, while muscles
> rotate your thigh and shin bones about their joints, and the position of
> your hip is at the mercy of a complicated function of all these
> variables? Is the position of your knee backsolved by the postion of
> foot and hip or is it solved by the rotation of your hip alone?
>
> My legs, at least, are FK! ;-)
>
> This animation is a walk cycle of my blobmon involving a true FK based
> walk cycle. No foot slippage, by definition! Am I right in that this is
> a significant accomplishment? With this kind of cycle, I could have a 4
> or 15 jointed leg, which could be difficult to solve with IK math. The
> position in Y is determined by locating the "bottom" of the figure with
> 2500 trace calls from -y, and a trace call from y to the floor, so I
> could have it walk up a gently sloping mountain.
>
> It would not have been possible without various features of Mega 0.4. I
> was greatly disappointed, however, that the init_spline funciton does
> not work at all (It only works in cases where you could have just as
> easily used the sine function). I spent days tweaking my cycle before I
> figured this out. The motion may not be as smooth as possible, because
> I'm stuck with a linear spline until I can figure this out. I may be
> forced to write my own cosine-spline macro to get what I need!
>
> Hopefully, this figure doesn't look like a big booger! ;-)
>
> ------------------------------------------------------------------------
> Name: thebodywalker11.mpg
> thebodywalker11.mpg Type: MPLAYER2 File (video/mpeg)
> Encoding: base64
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