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Poser F.A.Q (Updated: 2019 Jan 31 1:28 pm)
Subject: How large can you make the GROUND/BACKGROUNDRedMenace opened this issue on Apr 20, 2019 · 3 posts
Change the camera "Yon" to a larger value. That will solve both preview and render problems. You can make it ridiculously large but be warned that it will eventually make the cameras become slow to respond.
I don't know the practical limits of the Poser universe but I currently use a Yon value of 20000.Coppula eam se non posit acceptera jocularum.