I'm not sure what you are asking? Are you wanting to connect to a virtual desktop on VDI with a MAC? If so, I am sure you can remote desktop from a MAC.
MS has this out for that purpose:
It may very well be built into MACs, but im not a MAC user.
That would be the RDP client for MAC .... which is already a sort of VDI if you will.
On the other hand I am not sure how many VDI connection brokers provides MAC support (assuming u need a broker).