SwirlX3D is a powerful X3D and VRML authoring environment that displays scenes as they are being built. X3D is an interactive 3D medium that is designed from communication over the internet. Not only does it contain a rich variety of geometry nodes, but it also supports animation through TimeSensor, interpolator and Script nodes. It also supports user interaction through sensor nodes. The graphical editing interface of SwirlX3D gives full access to the data structures in an X3D file and is able to preview the completed scene.

Homepage :
http://www.pinecoast.com/

DL : by iNViSiBLE
http://rapidshare.com/files/138985954/SwirlX3D24318.rar

UNTESTED