[freearchitecture] Open 3D CAD file format

[Lars O. Grobe]

> No, I agree. X3D is presently intended for artistic 3D graphics.

Here I disagree ;-) It is capable to display e.g. building models. But 
it is not made for the design process, it is something that can be 
displayed to and explored by users. As such it focuses on different 
functionality - a big chunk of the spec is made to guarantee the 
behaviour of the scene, which is not so interesting while constructing a 
building, on the other hand basic concepts such as layers are not 
available. As such I see it either as an export-format or, for 
distributed editing, as an exchange protocol between workstations with 
users connected, but not so much as an internal cad database.

There is a CAD working group at web3d.org, but they afaik focus on the 
output, exploring building with cad data, etc...

CU Lars.