Re: [Algorithms] Skeletal Animation...

[Jeff L. <je...@di...>]

Has Game Developer got some issues for you.  I have written several articles on deformation of a mesh using an imbedded skeleton.  That will handle the rendering aspect of a kinematic animation.

http://www.darwin3d.com/gdm1999.htm#gdm1099
http://www.darwin3d.com/gdm1998.htm#gdm0598

For the physics, Chris Hecker wrote a multi-part series on linked rigid body dynamics.  Specifically the example was a ponytail that moved dynamically connected to a kinematic head.

www.d6.com

I don't know if Chris posted his ponytail app yet but if he hasn't send him a note bugging him.  It should be there :)

The person you were thinking of is Brian Mirtich from MERL.  His website is http://www.merl.com/people/mirtich/

-Jeff

At 10:58 PM 8/28/2000 -0700, you wrote:
>Hello.
>
>I was wondering if anyone had links to some good skeletal animation
>techniques and perhaps some information about the kinematics involved.
>
>For example, if I was a model to have a ponytail which moves realistically.
>Given gravity and the mass of my character, I should be able to generate the
>normal force produced by walking (feet hitting the ground).
>
>Assuming the ponytail is just a couple bones end-to-end sharing intermediate
>vertices, the problem I arrive at is the way to correctly propogate a force
>applied at the origin vertex (ie the one connecting the ponytail to the
>head) down into the other vertices.
>
>Any possible links would be great.  I heard that someone wrote quite a few
>papers on the physics involved in this, but I can't remember his name
>exactly.  I know his last name is something like Mirich, but thats not quite
>it.
>
>Thanx!
>Brandon Moro
>
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