Codeblend: real-time plugin for 3ds max

On http://www.codeblend.com/products.html you can download a free trial version of "Codeblend", which is a 3D real-time plugin for 3ds max to export the scene into a realtime model, using current gaming techniques: advanced shaders, realtime collision detection, dynamic lighting and shadows and even effects. You can include interactivity, such as video, audio, triggers (open a door, turn on a light).

PC only and requires 3ds max. Not tried with VIZ, but could work.