OneClick is a toolset (scripts and plugins) for fast and easy 3D scene exporting to realtime engine, whether it's Unity, Unreal or just web page.
Currently it supports 3ds Max and tries to convert physical materials, cameras and lights to match your scene as close as possible with the original V-Ray | Corona | Scanline renderer look.
Instancing. Geometrically similar meshes (i.e. chairs in restaurant hall) could be exported only once, thus optimizing for rendering speed and memory footprint.
V-Ray procedural textures. We bake many kinds of such textures - making them possible to export.
Atlasing. Could greatly minimize amount of different materials.
Lights. We recreate lights in Unity to match original scene as close as possible.
Cameras and Layers. Those are exported too! Just for your convinience.