In this post, Mike Taulty will walk you through a learning curve to figure out the very basics of 3D in Silverlight 5.
Source: Mike Taulty's Blog
I know next-to-nothing about 3D graphics which is a shame because it’s a huge feature for Silverlight 5.
Not being one to give up easily though I didn’t think I’d let my lack of knowledge hold me back. What I know about 3D in Silverlight is that the API is a low level API rather than the high-level model that you saw in WPF and which I could just about deal with.