GeoModeller can export it's 3D models to 3D PDF format, which can be opened in Adobe Acrobat Reader.

Alternatively, 3D models can be exported to DXF or other 3D formats, which can be utilised in GoCAD software such as the Geoscience Analyst 3D viewer. This program, in particular, is good at viewing the voxets generated by stochastic inversion, however, the drawback is resolution.

Paraview can also be used for a number of 3D export formats, however, it may include a steeper learning curve.