Tekla Structures BIM Software - Open approach to Building Information Modeling
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
BIM Vision - Freeware IFC model viewer.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
FZKViewer - FZKViewer visualises the sematic data models IFC, CityGML und gbXML
ZBrush - ZBrush is a digital sculpting and painting software solution.