Jaime Vives Piqueres wrote:

>   Wow... you really needed it, isn't? :) 

Yes I use the technique a lot.  It is not too bad once the external 
piece is standardized.  Inside Wings I have preset materials for this 
purpose. Sometimes I also use the material names to pass along 
parameters. It is useful because not only do you get surface points but 
their normals so you can calculate points at distances above the surface 
too.  I use them to generate splines which in turn I use to generate 
hair, or, in my current project, feathers.

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