been working extensively with the joints ot these characters and making my own...seems that the horrible deformations we face when we pose our characters could be taken out with this.  i can make the matspheres work perfectly for whatever angle i need...but you can't animate it so far as i know, which just means stills.  that's no fun...so any one seen anything like this?

ps. if the software creators ever check in here, this would be a really really great feature.  it would expand our realism and animation capacity by leaps and bounds and make dynamic cloth actually reliable.  after all, once you get the joint parameters down, no polys need to collide again. 

never did much in the setup room. what are matspheres?

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No.  You cannot animate the Joint Parameters.

If you look inside the Poser file, you'll note that the joints are set up as standard dials  (twist or joint channels in an actor section).  They even have the staticValue, initValue, and key that you might think have some potential.  But they don't affect anything.  The values of interest there are center, startPt, endPt, angles, bulge settings, innerMatSphere, outerMatSphere, and so on.  Even though the matrix spheres show up as normal 'objects' in Poser, you might think they'd have animatable parameters - but they are only virtual unit spheres with the dial values applied to create the matrix (from which they are named) which are then applied to the joint deformation calculations.

Dynamic deformation properties would be cool, but I think it is a little beyond Poser at this point.  Maybe a consideration for them in the future for sure.

matspheres are a way of controlling the falloff of the zones that bend the mesh at the joint.  within the green zone, the bending effect is applied absolutely.  between the green and the red zones, the effect falls off.  it's pretty touchy stuff, but works very very well.  if you want to see the spheres more correctly, fuaho, change the element display style to wireframe.