The idea of this tutorial is simple: we start with a very low poly mesh created in your favourite 3D package which we import in Zbrush. There, we sculpt the model and when we’re pleased with the volumes we export the high poly model which we will use as a reference when modelling with the 3D package of your choice.
The final image was created in the latest version of ZBrush and uses the all new Polymesh feature. As with most of the newer features in ZBrush Pixologic provide you with an extensive set of ZScripts to help you understand the basics. Polyspheres is no exception. The ZScript is the best way to learn! Run them.