1)   SurfX3D 1.0
Surface Explorer 3D plots mathematical surfaces in 3D. User defined surface equations can be explicit, implicit, or parametric. Surface color equations specified by user. Export to clipboard, VRML, POV, DXF, printer. C++ source code included. Free.

 2)   POV Sphere Mosaic 1.00
Photoshop plugin for exporting image into 3D mosaic, consisting from colored spheres. 3D scene is written in POV-Ray format.