LightUp

LightUp is a plugin for SketchUp that adds realtime lighting of your model inside the SketchUp window.

You can add light sources to your model, backdrops, reflections, and immediately see the results without exiting SketchUp. When its done, you can export your lit model to a compressed file containing your Model, textures and Scenes and share it with others using the free LightUp Player or LightUp Web Player.