One more point. It is also possible in Poser to do any projection of a texture, including camera perspective, spherical, box, equirectangular, slope, height, or anything else that can be expressed mathematically. You just have to know how to connect the right nodes to the Image_Map to change its coordinate system to anything you want. Of course those are not as easy as in C4D or other tools. Nevertheless, when the question is "is it possible" and it is possible the correct answer is yes, not no. If the question is "is it easy", then ok, the answer is no.

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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)