Welcome the the McClellan Studio tutorial series on taking your Revit Models into an interactive real-time rendered environment. I hope that you find this series of tutorials beneficial in increasing the quality of your deliverables.
There are many different softwares out there that you can use to accomplish this task, I am going to show you a few of many. These tutorials are in no way comprehensive guides to any of the software I cover. I have left many links to resources that I have found useful as I have been learning to work in 3Ds Max and Unreal Engine on the resources page.