CMol is PyMOL without Python.
This splinter architure underlies JyMOL, but it is not mature enough yet to be relied upon as an open-source toolkit (hence its present closed-source status). In short, we need a well-resourced collaboration to drive this forward.
If you have a budget to develop an in-house or commercial product which could effectively leverage PyMOL graphics, then please contact Schrödinger to discuss potentially adopting this API to meet your needs.