Quote - ... an eye shader that does a UV fit. I was able to use V4 eye textures on the new eye without changing its UVs, using math on the ImageMaps. It worked perfectly. Unfortunately, Poser preview does not pay attention to UV math and the preview looks absolutely ludicrous... I could tolerate the scary preview, but I'm sure most other people could not.

This sounds useful. I don't suppose it is possible to have the shader use one texture for preview and a different one for the render? The problem is not only one of aesthetics, one needs to be able to see which way the eyes are pointing when composing the scene. I suppose one could always compose the scene with an eye texture that does work in preview, then change to the V4 texture for the final render.

Would it be feasible to implement this technique for a whole figure?