I know I can render wireframe in preview mode but the quality just isnt good enougth for animation.

Iv made a basic animation of my model and wish to animate the object turn into wireframe and back again.  The way iv had to do it is to render out say frame 1-100 with no wireframe then render from frame 80 to 200 then over lap and use crossfade in a video editing application so the 20 frames over lap for the transition effect.

It would be so much fast if I could animate the wireframe cross fade in poser while in firefly, even if I can animate this effect in preview it would be better than nothink.

when ya say "render wireframe in preview mode", the quality can be pretty good IMVHO (anti-aliased, adjust wireframe thickness, et al.). but another method would be to create a transparent wireframe texture and animate back and forth between that and the real texture.

The quality isnt bad but nothink like a firefly render with raytracing on.  The texture method is a method but I liked the wireframe variations shown via the display styles.