Here is a larger assemblage of pieces. Note that the 4-panel door is constructed very much the same as the first simple test prop I uploaded.

This is 4519 polygons, 12498 vertices. Without the partial welding, it would be 18076 vertices.

With full welding in the CC style, it would still be 12498 vertices, but either quite a few bizarre n-gons, or a lot more polygons since the wall would have to be cut up a lot more.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)