Replace a geometry on an existing SI object via CMeshBuilder

[Kamen Lilov]

I am trying to completely replace the geometry on an existing Softimage 
X3DObject node - and do it quickly. This is not at render time but in an 
interactive session. CMeshBuilder seems the best way to construct a 
(relatively) large mesh's geometry from an internal, incompatible 
representation.

I am also trying to preserve everything else on the SI object - operator 
stack, the render trees on the individual clusters, etc etc. I would 
rather not try to serialize everything beside the mesh and then 
re-create the entire node.

Has anyone succeeded in replacing an object's mesh using CMeshBuilder 
while keeping everything else intact? Any pitfalls?

K.