The problem with "dynamic cloth" hair workarounds to achieve "realism" is the computing power it takes to calculate collisions when draping and the unsuitable mechanics of strip hair. Let's say a common "strip hair" (Mesh hair model) has thirty strip pieces to it. The model will have to be set up to work in the cloth room with constraints appropriately placed to keep the hair strips anchored. Then, the dynamics can be applied and self-collision checked. It's that self-collision of so many strands interacting with each other at once that bogs things down.

Also, each strip in a strip hair model is generally made to be viewed from the face of the facing normal. So, what happens during collision calcs when strips twist or get turned in such a way that their normals are at an angle to the camera? Not an issue if you force all normals to face front, one might think, but those textures are still going to be facing in twisted directions, yielding somewhat weird looking hair with splotches of twisted, overlapping, textures.

For simple strip-hair dynamic poses, it's probably not too much of an issue and the deformation of the strips won't cause too much of a problem with a distant view. But, anything radical is likely to cause obnoxious results.

What's needed is a new hair engine for Poser. Poser dynamic hair is virtually absent on every single online Poser retailer's shelf because it sucks, is tedious and difficult to work with, and it looks ghastly when rendered and.. it sucks. Sure, it was probably a great thing when it first came out.. until people actually tried to use it. The only decent hair made with it that I have ever seen was by Adorana (sp). And that was probably pushing the limits of the system. And, unfortunately, it's not something that can't be much more easily accomplished with a standard strip hair model with good transmaps and procedurals. With alternate rigging schemes, even dynamic effects can be mimicked these days with simple morphs and a good rig.

"Hair", in general, has always been the bane of lifelike 3D modeling. Always. It hasn't been until recently that studios had the hardware and tools to make realistic hair. Even then, it's terribly difficult to pull off. Modeled strip hair just isn't able to keep up with the rendering capabilities that provide Poser users with the ability to render lifelike skin and visual effects. The one thing that always kills any lifelike render is the inevitable "helmet head" hair that Poser users are forced to employ. That's why some vendors of character textures seem to enjoy using photoshopped hair cutouts... It makes their product look more realistic.

Poser needs a new hair system that brings it up to par with its other capabilities.