I have two options, V-ray for Rhino and KeyShot 7.3.40
Which one can produce more realistic still images of products modeled in Rhino?
Consider SSS capability too.
I guess you’ll find as many opninions on this as there are V-ray and Keyshot users. My 2 cents: If quality is your only parameter, V-ray can be tweaked in ways Keyshot can’t (yet). The amount of settings is mindblowing and it can produce some really stellar renderings, but the learning curve is steep! If you consider time spend and ease of use factors as well - and I’m talking both time learning, setting up render scenes, tweaking materials, actual tender time, trouble shooting etc. - I’d say go with Keyshot. It’s just so damn easy to create really, really nice renderings in a fraction of the time. There are also other alternatives, but I have no experience with them: Maxwell, Thea, Octane.