The Page Flip in Silverlight
What we’re going to do today is explain the mathematics behind a premium page flip experience engineered in Silverlight. The Silverlight implementation shown above was solved using trigonometry, clever masking and a little “smoke and mirrors” magic for the shadows. As with many of my blog posts, the effect can usually be split into the mechanics of the effect(the math part) and the presentation (the rendering tricks). Since Silverlight and Flash handle the mechanics of masking, clipping and rendering transforms differently, this tutorial is aimed primarily at Silverlight developers. However, the mathematical secrets behind the Page Flip technique are applicable to interactive developers in any language and this tutorial focuses primarily on explaining the rotational mechanics of the solution.
For details click here