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MysteryX · 3rd October 2015, 19:10

Great, it now supports converting to/from RGB32. SuperRes's downscaling is now done in RGB32, avoiding unnecessary RGB-YUV conversion. It considerably further increases quality.

2 areas that still need improvement:

1. Find a Bicubic HLSL shader to avoid unnecessary conversion for downscaling.

2. Convert YUV-RGB in Rec709 colorspace. Because it is currently converting in the Rec601 colorspace, the sharpening effect may slightly pull towards certain colors.

Contributions or suggestions are welcomed on those.

And then, of course, there are all kinds of performance optimizations that could be implemented.

Here are some performance numbers. CPU-Z isn't reading my GPU usage properly so I can't measure what's happening on the GPU.

nnedi3_rpow2(2, cshift="Spline16Resize")
60fps @ 55% CPU
SuperRes(1, 1, 0, true, """nnedi3_rpow2(2, cshift="Spline16Resize")""")
4.5fps @ 12% CPU

MT=8
nnedi3_rpow2(2, cshift="Spline16Resize", Threads=2)
80fps @ 83% CPU
SuperRes(1, 1, 0, true, """nnedi3_rpow2(2, cshift="Spline16Resize", Threads=2)""")
15fps @ 85% CPU

3rd October 2015, 19:10	#7 \| Link
MysteryX Soul Architect Join Date: Apr 2014 Posts: 2,559	Great, it now supports converting to/from RGB32. SuperRes's downscaling is now done in RGB32, avoiding unnecessary RGB-YUV conversion. It considerably further increases quality. 2 areas that still need improvement: 1. Find a Bicubic HLSL shader to avoid unnecessary conversion for downscaling. 2. Convert YUV-RGB in Rec709 colorspace. Because it is currently converting in the Rec601 colorspace, the sharpening effect may slightly pull towards certain colors. Contributions or suggestions are welcomed on those. And then, of course, there are all kinds of performance optimizations that could be implemented. Here are some performance numbers. CPU-Z isn't reading my GPU usage properly so I can't measure what's happening on the GPU. nnedi3_rpow2(2, cshift="Spline16Resize") 60fps @ 55% CPU SuperRes(1, 1, 0, true, """nnedi3_rpow2(2, cshift="Spline16Resize")""") 4.5fps @ 12% CPU MT=8 nnedi3_rpow2(2, cshift="Spline16Resize", Threads=2) 80fps @ 83% CPU SuperRes(1, 1, 0, true, """nnedi3_rpow2(2, cshift="Spline16Resize", Threads=2)""") 15fps @ 85% CPU __________________ FrameRateConverter \| AvisynthShader \| AvsFilterNet \| Natural Grounding Player with Yin Media Encoder, 432hz Player, Powerliminals Player and Audio Video Muxer Last edited by MysteryX; 3rd October 2015 at 19:32.