The objects created by the Primitives class have no proper texture coordinates (except for the plane). They are meant for quick and dirty prototyping. The calcXXTextureWrap-methods are basically the same thing, i.e. they exist mainly to create at least some texture coordinates. If you want proper texturing, you have to do it in a modeller or load some model that somebody else created. The recreate...-method doesn't exist in jPCT-AE, because it's needed for the software renderer only. AE doesn't have this, so it doesn't need this method. It doesn't change/fix coordinates magically.