Blendshapes work in a linear format, that is it only holds information of the start position and the end position or in computer terms that is the start and the end vector, and the smallest route between those 2 positions is a straight line, which is why 2 key frame are always linear

People have continously kept asking me how Ive got the effect of rendering a wireframe over the ambient occlusion. and this is what this tutorial is all about.

Well, everyone knows the old method of rendering wireframes in maya through vector rendering, and rendering creased line, one set back to that was that it would tend to render each quad divided into 2 tris.. Well my major problem was with maya 2008 64bit doesnt suport vector rendering plugins. :) so i thought id try something new..

So what basically this shader does is try to re-create the effect of ambient occlussion. It is moderately low on render time, and has significant advantanges in the final look of an image. The mib_amb_occlusion node come with a variety of attributes to customize the final rendered AO image.