I am an interior designer who is designing a 16 ft fireplace wall with a client. We want to see a 3D rendering of it and potentially make changes as the process goes forward. I will be able to provide the AutoCad file with the wall and a bit of side walls and .jpg's of all the surfaces and objects needed for the rendering. I have uploaded my Photoshop rendering of it for you to see what is involved. Sketch up with a dongle or Rhino would work.