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2nd May 2016, 12:41 | #37683 | Link |
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"Low" black level does not mean full range! Or at least that is the case with my LG. So change that to "normal"/"full"/"automatic"/"PC mode"/whatever is the other option. Then just use both madVR and GPU on full range and enjoy worry-free watching.
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2nd May 2016, 15:31 | #37684 | Link |
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Hello guys, when looking for the most important GPU performance aspect for madvr, is it Memory Bandwidth, Pixel Fillrate or Texture Fillrate?
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2nd May 2016, 19:19 | #37686 | Link | |
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Quote:
I am GPU oc'er and I have been studying those for a good while. All that actually comes after learning all that was online about GPUs is that their price and release date reveals their potential. And benchmarks. It is irrelevant what it might seem from Nvidia technical specifications, a GTX980 is faster than a 970 for both gaming and madVR, and a 980TI is faster than a 980. madVR seems to scale like games do with a GPU. Only that for madVR, your vRAM is not important, because you will never fill over 2GB, regardless if you are watching 4K, while with games you can go over 4GB even at FHD + 60Hz. Movies are afterall 24fps, or 30 most of times. Very few movies are 50 or 60 fps.
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2nd May 2016, 19:41 | #37687 | Link |
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If you use nnedi3, open CL will matter, but both sides are relative close in this gen. 4gb is enough for 4k output if you keep the queue reasonable.3gb is tight if you dual screen or Windows decides it want to keep your vram as hostage for some reason.
Sent from my 306SH using Tapatalk Last edited by baii; 2nd May 2016 at 19:55. |
2nd May 2016, 20:46 | #37688 | Link |
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I switched from a GTX 980 with 1,4Ghz to a R9 390 with 1040Mhz and don't notice any difference in speed in madVR.
What I however notice is that native DXVA2 decoding doesn't kill image quality with AMD (with Nvidia, chroma get's extremely blurry) and that the Radeon doesn't get sometimes stuck in the wrong power state with NNEDI3. With the 980, I sometimes had to restart Windows to make the GPU clock up again. I think the coming Polaris 10 GPU could have the potential to become the "perfect" madVR card (probably faster than 390X, probably not over 130W power consumption, HEVC 10 bit, price probably very affordable). |
2nd May 2016, 21:48 | #37689 | Link | ||
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However, Y only test patterns are pretty common so it is easy for even casual tests to show an improvement using limited range with dithering disabled. Quote:
Edit: even as a theoretical issue limited range is only better with Y only sources.
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madVR options explained Last edited by Asmodian; 2nd May 2016 at 21:55. |
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3rd May 2016, 00:11 | #37690 | Link | |
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madVR RGB Output Levels - Limited vs. Full Range
Theoretically, does this make sense?
Quote:
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 5th May 2016 at 22:41. |
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3rd May 2016, 07:51 | #37692 | Link |
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The most accurate (IMO):
(madVR) TV levels (16-235) -> (GPU) Full Range RGB 0-255 -> (TV) Output as RGB 16-235 That way you don't lose BTB and WTW signal and actually the closest setting to a top notch quality blu-ray player. It also has no range conversions. But as said, you can't play PC games or play any full range signal from your PC because it will be clipped.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 3rd May 2016 at 08:00. |
3rd May 2016, 09:27 | #37694 | Link |
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Reading Warner's description, can someone confirm if on Samsung TVs (at least as long as the HDMI input is not deliberately specified as "PC" by the user):
HDMI black level on "Normal" = full range HDMI black level on "Low" = limited range (I'm not at my TV at the moment but I remember if the input is named "PC", the black level setting is greyed out and fixed to either one of the options. Not much sense in using "PC" though because many other options are also greyed out then and become unconfigurable.) |
3rd May 2016, 10:00 | #37695 | Link |
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This is a common claim, keep the range "the same", but this is not how it works.
The YUV and RGB ranges are not strictly related. Converting from YUV to RGB changes the values either way, slightly adjusting the coeffecients to adjust their output to 0-255 or 16-235 is not an extra range conversion step, it just targets a different output range. The quality is not higher when you use 16-235. Even your players UI will be clipped in such a mode, which is imho not acceptable. If your TV support full-range input, and you don't need it to be compatible with other source devices that output 16-235, using 0-255/full range is the better choice, in my opinion. No matter what people claim, but BTB/WTW are not meant to be visible. A properly calibrated screen should have absolute black as absolute black. There is no room to show any blacker values. Would you sacrifice the black level or the white level of "normal" content to be able to show those? You certainly would not.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 3rd May 2016 at 10:02. |
3rd May 2016, 10:38 | #37696 | Link |
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Seeing as how any TV is going to be converting your RGB signal into YCbCr again for it's own processing (unless in some kind of restricted 'PC' mode) before converting to RGB once more for display, isn't sending full vs limited kinda moot?
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3rd May 2016, 10:41 | #37697 | Link |
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converting full range RGB to high bit deep YCbCr is better than converting limited range RGB to high bit YCbCr.
and nearly every TV theses is at least not sub sampling in some kind of mode. newer sony TV can do ->everything<- without subsampling and maybe even in RGB. |
3rd May 2016, 11:34 | #37698 | Link |
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Since a few days ago MadVR is not working in FSE mode under Windows 10. I get a blank screen on a secondary or tertiary display. If I right click on XYsubfilter on the system tray the image comes back. If I bounce between FSE on secondary/tertiary a couple of times MPC-HC crashes. If I try skip frames it locks up. It works using Windows overlay or DX11. I tried different (older) versions of MadVR and MPC-HC plus older AMD drivers (default Win10 version).
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3rd May 2016, 12:56 | #37700 | Link |
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So what I take from this is there's no consensus on whether
1) limited -> full -> limited ("Option 2" on Warner's list) is any more optimal than 2) everything full range (Assuming exclusive HTPC use and disregarding desktop use.) Anyhow, I guess it's "safe" for me to keep using limited -> full -> limited. I doubt I could detect any difference either way (other than desktop looking off). Naturally I'd like to set it the best way possible and just stop obsessing about it. Last edited by Uoppi; 3rd May 2016 at 12:59. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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