If you go through Sketchup all of the materials that you applied to your model in Softplan go right with it. They also will come into Lumion. Once in Lumion you can replace any materials that you want.
If you go through Sketchup all of the materials that you applied to your model in Softplan go right with it. They also will come into Lumion. Once in Lumion you can replace any materials that you want.