# Export Tube with VertexColors to 3DS

I would like to export a Tube object with VertexColors defined to 3DS format. Here's a minimum example:

test = Graphics3D[Tube[{{0, 0, 0}, {1, 1, 1}}, VertexColors -> {Red, Blue}]]
Export["test.3ds", test, "3DS"]


However, it appears that Tube objects are only exportable if they lack the VertexColors option, this seems to be true for all 3D formats. It seems to me that the simplest solution is to convert a graphic with Tube objects into the GraphicsComplex format, which does support VertexColors upon export.

I'm guessing it might only be possible to use one of the old "extrude" solutions to this problem prior to the Tube primitive existing. Is this the only way to do it? If so, how can VertexColors be added to the extrusion methods of old? I'll note that the extrusion method produces 3D surfaces with far more polygons than Tube does, and with weird vertex normals. This makes the exported objects unnecessarily large and kinda ugly.