To each his own, but I've shown several times how to integrate your figure with any photo, using only the Poser ground plane, my shadow catcher material for it (free), a Poser one-sided square, and a photo of your choice.

There's no reason to use a cyclorama just because you want the figure to touch the "ground" in the background image. If you want it because its "easy" and you like the images that are out there for it, then by all means.

But if you want to use real photos or rendered backdrops not designed for cyclorama, you can't use cyclorama.

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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)