I read through many of the discussions about this matter and I have to say that you can turn a head or whole body from front to profile in Moho it just takes a lot of set up. Check out either of the clips at:
[url]htttp://
www.decksawash.net/fairy.asp[/url]
I used the layers in 3D space technique mentioned but instead of switch layers, I used single frame actions to insert the pose into the timeline as this gives me more flexibility. I can't quite remember now why it gives me more flexibility, but that's what I do.
As a quick exercise, draw a skull shape on one layer and a nose on another facing the camera.
Set the z dimension of the nose layer to .0010 and leave the skull frame's z dimension at 0.
Keyframe this on frame 1.
At frame 25 reshape the skull layer points in a profile looking to the left.
Set the nose layer z dimension to 0.0002.
Drag the nose layer points over and reshape them to look like the nose in profile.
Scrub the animation and watch the nose move across the face and reshape itself.
Go to frame 13 and fix the skull and nose shapes to look right for this 3/4 view.
Keyframe the layers positions here and copy frame 13 to frame 31.
Change the nose layer z dimension here to -0.008 and scrub the animation.
Go back to frame 26 and set the nose layer z-dimension to -0.0002 so the nose flips behind the skull on frame 26.
You probably want to adjust the nose shape on frame 25 to match the skull outline better so it doesn't "jump".
If I haven't forgotten anything, the nose should move across the face to profile and then back behind the skull for that "over the shoulder" shot you've been wanting to do. Add eyes, ears and a mouth, each on their own layer and you've got the start of something.
Alan