Can I use RoomBox with D5?

Absolutely!

RoomBox cannot directly create emissive materials for D5, but it's very easy to set them up:

1. Place the rooms in SketchUp using RoomBox

2. Import your SketchUp scene in D5

3. Select a room material

4. Enable Emissive

5. Adjust the Intensity depending on the camera exposure

6. Repeat for the other room materials