Kendzi3D - 3D Viewer as plugin for JOSM.

Hi guys, I hope it’s correct place to discuss this issue.

Kendzi 3d plugin is nice, but there is also a big problem.

Kendzi 3d extrudes the third dimention from the building outline (polygon or multipolygon with building=yes+building:levels) even if there are building parts (polygons or multipolygons puilding:part=yes), inside this building.

In the Simple_3D_Buildings http://wiki.openstreetmap.org/wiki/Simple_3D_Buildings it is stated that it should NOT be done:

As the result, some buildings are rendered correctly in F4 and completely wrong in Kendzi 3d:
Examples:
http://www.openstreetmap.org/browse/relation/2888456
How it is now:

How it should be:

(I’ve just removed Building=yes from the outline)

How it looks in F4
http://map.f4-group.com/#lat=56.3297870&lon=43.9981890&zoom=19&camera.theta=55.764&camera.phi=-160.715&la=la

Is this a known problem? Is it possible to fix it?

It’s important, because the common practice is to map the building outline with polygon with building=yes for 2d renderes, and add to the building=yes tags for the total height of the building and its total levels, even if the building has complex shape.