What is it what stops you to use what you like inside your "worker" lib? Look how odf did it. You just have to make sure your output goes to "file". That's all.

Splitting things up insteed of having one monolitic piece of code is required to follow one of the basic ideas: Try to make Poser compatible with other render engines. Not only Lux.

So the steps: Output one light, output one material, etc. is required if we want to follow the basic requirements. Beside of that, is just a good coding style.

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