There is no way to call Poser directly, IMHO. Firefly would need a scene and material descriptions, which Silo cannot provide. If you want a quick Firefly render, the easiest way would be to write a Python script for import and rendering in one go. If you would use a standard file name, you could import and render in one go.

 

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

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