Hi Basanta,
the triangulation is part of the reference-Mesh in our model.
In scalismo-faces you get it via yourMoMo.referenceMesh.triangulation.
For external usage you can find the triagulation in the h5-model-file. There are a lot of libraries to load hdf5 files (e.g. in matlab). The triangulation is found in shape/representer/cells.
If you just want to render a mesh you can again use scalismo-faces:
val renderer = MoMoRenderer(yourMoMo, RGBA.BlackTransparent).cached(5)
And then render a mesh using:
renderer.renderMesh(renderParameters)
To get a easy start to our software our tutorial can be helpful:
http://gravis.dmi.unibas.ch/PMM/lectures/fitting/
Best
Bernhard