title: HLSL vertex shader
body: <p>I've been studying shaders in HLSL for an XNA project (so no DX10-DX11) but almost all resouces I found were tutorial of effects where the most part of the work was done in the pixel shader. For istance in lights the vertex shader is used only to serve to the pixel one normals and other things like that.
  I'd like to make some effect based on the vertex shader rather than the pixel one, like deformation for istance. Could someone suggest me a book or a website? Even the bare effect name would be useful since than I could google it.</p>