Rhino will be available from the RISD store on Thursday (they’re sold out but a new shipment is on the way). It’s in one of the locked cases in the back, so you will need to ask for it. But be sure to get the right OS. With a student ID, it should be $80. Regular student licenses are more expensive ($195), so don’t get it anywhere else but from the RISD store.
Here’s a link to where you can purchase the educational license of Keyshot:
You will need to supply proof of educational status, and they approve the purchase during business hours (M-F, 9am -6pm PST) so you’ll need to keep that in mind.
On Windows you can get a plugin for Rhino that lets you work between Keyshot and Rhino a little bit more easily. Get it here:
In the meantime, you can use the trial version: