Hmm, I didn't think of that. I've only used the technique in a lowpoly workflow. In Transfer Maps you can bake the highpoly diffuse color to a lowpoly, but I'm not sure if it works with vertex color. If it doesn't then a potential workaround is that you just do a quick automatic map on the highpoly and do the whole vertex…
Fingus> Cool. Didn't know you could export Vertex Colors to a Map in Maya with the Paint Vertex Color Tool. Although the map will be based on the same object which has the vertex colors right? Wouldn't this first require some sort of transfer of the vertex colors from the high -> low? Or decent UV set on the High and then…