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30th January 2016, 09:34 | #35701 | Link | |
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30th January 2016, 10:17 | #35702 | Link |
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why do you recommend not to (down)scale the chroma?
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30th January 2016, 10:32 | #35704 | Link |
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I dont understand. when the videos resolution is 4k, but your screen 1080p and the video gets scaled down to this, then the chroma already is 1080p? so why is there then the option in madvr to scale the chroma at all?
edit: actually its chroma upscaling...well Im lost.
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30th January 2016, 10:59 | #35705 | Link |
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read this: https://en.wikipedia.org/wiki/Chroma_subsampling
4:2:0 is used on DVD, BD and UBD. so the chroma resolution is 1/4 the luma resolution. 2160p = 1080p chroma. |
30th January 2016, 11:57 | #35706 | Link |
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Hello madshi and thanks again for your amazing work.
Could you put back the old version of finesharp? Crispen edges is sometimes too much for my gpu. I also still prefer finesharp result than crispen edges one alone. However I didn't test to combine multiple sharpen shaders at once as my gpu is too limited. Could you make the display modes generic for any display monitor like smooth motion? In Kodi there is a option called "Adjust Display Refresh Rate" and this is an on/off button. I think display modes is a very important thing and it should be simpler for novice people. It would be great if madVR could automatically get available display frequencies and switch to the appropriated one. Last edited by foozoor; 30th January 2016 at 12:00. |
30th January 2016, 12:06 | #35707 | Link | |
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some(if not most) TVs have a broken 23/24p mode some can't deal with 50 hz well. but he already said he wants to remade this part. for the moment just add this: 1080p23, 1080p24, 1080p50, 1080p59, 1080p60 it doesn't matter if your screen doesn't support all of them. |
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30th January 2016, 12:36 | #35709 | Link | |
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and if you want to fine out if 23p is broken on your screen either read tests or just look at it. most TVs with a broken 23p mode do a 23p -> 59p conversation adding a 3:2 judder. |
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30th January 2016, 12:47 | #35710 | Link | |
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30th January 2016, 13:11 | #35712 | Link | |
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30th January 2016, 13:21 | #35713 | Link | |
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if you crop by 1 pixel you need to first upscale the chroma. it is still cropping the image but doesn't scale it anymore. |
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30th January 2016, 13:46 | #35714 | Link |
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A question about the upcoming downscaler: does it support any (smaller) scale factor, or is it limited to 0.5x scale like the image doubling options? I often watch 1080p videos in ~720p so I can still multitask a bit, but I don't often go all the way down to 50%.
I also agree with the others that it would be nice if downscaling to 50% or below disabled chroma upscaling entirely and simply downscaled the luma channel to 50% instead - seems like that would reduce the overhead by a bunch for large videos. Even for scale factors slightly over 50% (but close to 50%), it might not be a bad trade quality option to downscale luma instead of upscaling chroma.
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Test patterns: Grayscale yuv444p16le perceptually spaced gradient v2.1 (8-bit version), Multicolor yuv444p16le perceptually spaced gradient v2.1 (8-bit version) Last edited by Ver Greeneyes; 30th January 2016 at 14:18. |
30th January 2016, 14:19 | #35716 | Link |
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Hmm, but not for smaller resolutions? I don't have any 2160p video, so I just tested scaling 1080p to 540p and the OSD seems to indicate it still scales chroma (then downscales).
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Test patterns: Grayscale yuv444p16le perceptually spaced gradient v2.1 (8-bit version), Multicolor yuv444p16le perceptually spaced gradient v2.1 (8-bit version) |
30th January 2016, 15:03 | #35718 | Link |
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That's odd. I explicitly selected 50% in the latest nightly of mpc-hc on a 1920x1080 video, and checked that the client rect size becomes 960x540, but the madVR OSD still says "chroma > super-xbr" and "image < Catmull-Rom AR". It also stays the same if I further shrink the window to 959x539. I'm using the latest madVR (v0.90.3) in d3d11 new windowed mode, 64-bit, tested on a 4:2:0 video, black bar detection disabled, no trade quality options checked, smooth motion enabled.
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Test patterns: Grayscale yuv444p16le perceptually spaced gradient v2.1 (8-bit version), Multicolor yuv444p16le perceptually spaced gradient v2.1 (8-bit version) Last edited by Ver Greeneyes; 30th January 2016 at 15:22. |
30th January 2016, 15:43 | #35719 | Link |
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Please help..
I read the most I can to get 3D to work with MadVR.
No.1 thing I needed to do was go from Windows 7 to Windows 8.1 - DONE After doing a fresh install of Win8.1 I installed: MPC-HC 32 bit MadVR 90.3 FFdshow...I used this for sharpening the image Now I rip the 3D BRD to a MKV file using MakeMKV. Launch the file and cannot get 3D to work - at all. Videocard is HD7770 Crimson drivers 16.1 installed 3D works fine if using PowerDVD. Really don't know what I'm doing wrong. Many thanks in advance |
30th January 2016, 15:47 | #35720 | Link | |
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But wouldn't choosing 25,29 and 30 where applicable (vice 50, 59 and 60) allow for more processing time between frames. Thereby allowing more aggressive MadVR settings? Thanks |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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