Does anyone know of a good approach to remove and merge coincident or 
hidden surfaces from meshes? I am interested in creating a tool that 
"cleans up" LDraw models so that the models are usable in real-time 
applications. Currently, the models use so many polygons (most of which 
are hidden or duplicated) that real-time applications aren't ideal. I'd 
like to create a simple tool that "converts" models so they're usable in 
such things as games.

Thanks!

-Mike

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