Of course, I should add that the image used on the sphere is too small to look good when rendered like that. If I were to treat this as a final image, I'd postwork some additional blur into the background to hide that blockiness.

OTOH, I suppose one could try upsampling the original panorama in Photoshop before applying it to the sphere... but I think that would come at the cost of considerable render time.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3