how to scale nxshaper?

in class init i can scale shape box like this:
m_pShape = new NxOgre::Box(rsize.x*sx,rsize.y*sy,rsize.z*sz);

but how to scale :

m_pShape = new NxOgre::Convex(pMesh);
m_pShape = new NxOgre::TriangleGeometry(pMesh);

and in game how to scale NxOgre::Box in update.

You can only rescale a mesh, by getting a copy of the vertices and indices (via MeshData), performing the scaling operation yourself then cooking the mesh again.

The process is a little slow, and should never be done ingame - unless absolutely necessary.

what a pity~