I'm not sure it's two NGU steps, I think it doubles with NGU, then (for my example) upscales in the x direction with the upscale algo, then downscales in the y direction with the downscale algo, so 720x576 > 1440x1152 > 1920x1152 > 1920x1080
But I may be wrong. I'll check later with ShowRenderSteps.
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HTPC: Windows 10 22H2, MediaPortal 1, LAV Filters/ReClock/madVR. DVB-C TV, Panasonic GT60, Denon 2310, Core 2 Duo E7400 oc'd, GeForce 1050 Ti 536.40
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