Shapes and geometry

Hi,

working on the new shape/geometry code I wonder how important it is to 
have shapes which manage multiple geometry objects, what do you think?

FYI I turned G3DGeometry into a class from which all other geometries 
inherit. This will make it much easier to have different kinds of 
geometries, such as tri strips, vertex arrays or whatever...

-Phil
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Philippe C.D. Robert
http://www.nice.ch/~phip