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27th February 2018, 11:12 | #49262 | Link |
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An assumption of mine. I am under the impression that I will not get the same HDR/UHD quality using/outputting 8bit since it would need to downsample/dither. Is it wrong?
The Rec 2020 color space is a range of color. It was defined in 2012 as a standard for bit depth of 10 or 12 bits for 4k and 8k TVs.
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HTPC: Samsung 65JS9505, Yamaha A2070, Sonus Faber, RX580 Last edited by bran; 27th February 2018 at 11:37. |
27th February 2018, 11:16 | #49263 | Link |
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@bran: I get cca 15 ms rendering time with NGU sharp set to medium medium on both chroma and image upscaling and other settings as you put them, for 1080p 24fps video...NGU high is in 24 ms range, very high is @ 70+ ms)...decoder is LAV D3D11 Native...I don't have it connected to 4K display, but I use 200% zoom...I find Xbr good quality and good enough for my eyes...GPU is @40% overall, VRAM is 1.4 GB
P.S. 10 bit dithered to 8 bit (especially on 4K matrix) looks OK, i.e. on par with a full 10 bit path Last edited by mytbyte; 27th February 2018 at 11:42. |
27th February 2018, 11:39 | #49264 | Link | |
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10-bit is import for the source but madVR's dithering is quite good. It is very hard to tell if you are outputting 8-bit or 10-bit, from madVR or the GPU. It usually requires test patterns of some kind to even notice the change when switching back and forth.
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Nothing needs changing for AMD. Those are good options and are the same ones I use with Nvidia.
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27th February 2018, 12:18 | #49267 | Link | |
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It is slightly worrying that the RX 580 struggles with NGU sharp, I was hoping it would tear through this. I cant help feeling something has changed with either MADVR or the drivers though as I was able to use NGU sharp medium with my RX 550 up until about 2 months ago, now I can barely get NGU low for image upscale. |
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27th February 2018, 12:45 | #49268 | Link | ||
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amd for example is always send 10 bit if it is possible by default. |
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27th February 2018, 13:22 | #49270 | Link |
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Don't believe everything you read in marketing brochures.
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27th February 2018, 14:17 | #49272 | Link | |
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I know the debate about 8bit + FRC, however no one AFAIK has proven that my model is not 10bit. It was the flagship at the time, JS9500 FALD from Samsung. There was quite the thread over att AVSForums regarding this.
LGs current gen OLED displays? Quote:
There are numerous topics about standalone UHD Bluray players outputting 12bit as well, resulting in banding. For example Panasonics UHD players, they received a 10bit update and all was well. Good that you keep yourself entertained.
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HTPC: Samsung 65JS9505, Yamaha A2070, Sonus Faber, RX580 Last edited by bran; 27th February 2018 at 14:28. |
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27th February 2018, 14:22 | #49273 | Link | |
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27th February 2018, 15:25 | #49276 | Link | |
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madVR + MPC HC is the only player I use for video. Some youtube from time to time.
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HTPC: Samsung 65JS9505, Yamaha A2070, Sonus Faber, RX580 |
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27th February 2018, 16:08 | #49277 | Link |
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ah right, i use mine as web and other stuff so i have to have my desktop @ 60 hz which is why I use 420. I dont use 422 as when my TV is set to deep colour the only option I have is 420. This is because i'm using the blueray preset on my TV, the PC input setting does allow this but disables the motion abilities of the TV which are essential to me on my LG OLED EF9500 (uk 2015 model)
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27th February 2018, 16:43 | #49278 | Link |
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i found really good to put my desktop 4k@23 , setting 10bit output rgb 444, then i revert desktop settings to 50hz (I'm using madvr with mediaportal tv), so windows automaticalli brings rgb 444 8 bit only for 50/60 hz. Then i setup in mad vr two profiles: >24 fps use 8bit in device properties and <=24 fps use 10bit output in device properties. When madvr changes resolution windows put amd's 8 or 10 output accordingly with HDMi capabilities.
Last edited by mrmojo666; 27th February 2018 at 16:47. |
27th February 2018, 16:47 | #49279 | Link |
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yeah, there are lots of ways to do this, i've had it setup up a few different ways in the past but always had issue here and there, just got sick of faffing with it, my current setup is the most stable i've had it for a long time.
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27th February 2018, 17:06 | #49280 | Link |
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Your desktop at 30Hz 10/12bit is now introducing lag in everything from your mouse to your GUI's which is slow, awkward, non compliant with Windows desktop and definitely not up to par.
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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