How to add and display multiple models to a scene?

[ashishgupta79ongithub]

The following doesn't seem to work:

gvdb.getScene()->AddModel(modelpath0, s0, x0, y0, z0);
gvdb.getScene()->AddModel(modelpath1, s1, x1, y1, z1);
gvdb.CommitGeometry( 0 );
gvdb.CommitGeometry( 1 );
Model* model0 = gvdb.getScene()->getModel(0);
Model* model1= gvdb.getScene()->getModel(1);
gvdb.SolidVoxelize (0, model0, &xform0, 1, 1 );
gvdb.SolidVoxelize(0, model1, &xform1, 1, 1);