X3D nested transforms importer / exporter

[Dzess]

Synopsis

The X3d file format allows something like

<Transform DEF="Camera_TRANSFORM"
                   translation="0 5 5"
                   scale="1 1 1"
                   rotation="-1 2.88576e-06 6.39758e-07 0.436332"
                   >
            <Viewpoint DEF="CA_Camera" 
                                                   centerOfRotation="0 0 0" 
                                                   position="-0.00 0.00 0.00"                      
                                                   orientation="0.00 -0.46 -0.89 0.00"
                                           fieldOfView="0.858"
             />
        </Transform>

Details

In current version of the X3DParser does not support nested transform over the Viewpoint. It requires a lot of work to actually get it done properly. Unfortunately the blender 2.59 does generate X3D with such transforms.