It is easy - watch the video and try to do it :)
In this short video tutorial you can learn How to prepare Render Scene, modify material and set Bump Map for render's objects with Creo 3.0.
... create the final Wallpaper from your 3D model :)
Watch the video tutorial: http://youtu.be/sn-onIPN-Z0
3D model for this video tutorial you can download here: Cube and holes