Quote:
Originally Posted by tingtong5
Hi all,
I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.
My display is a JVC X5000 projector which has native 1080P panel resolution but accepts 4K input (e-shift technology).
Any idea on how to troubleshoot/fix this?
Ronald
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Go to trade quality/performance options, and check "scale chroma separately if it saves performance" since chroma is already at 1080p resolution. Alternatively, don't use anything harder than bicubic AR for chroma upscaling.
My laptop GPU can handle 4k (well, in film ratio and not a full 16:9 picture)->1080p scaling with SSIM1D if I don't use chroma scaling at all. Your 1070 should have absolutely no issues, even with something like SSIM2D with antibloat.