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26th July 2014, 08:40 | #26981 | Link | ||||
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madTPG uses the same settings you've selected for madVR, which is no wonder since madTPG internally uses madVR for rendering the test patterns. |
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26th July 2014, 09:08 | #26982 | Link | |
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When using the "Direct Pixel" for 4:4:4, it disables the internal high-bitdepth processing. When "direct pixel" is Disabled the Panel chroma is 4:2:2 but the grey ramp is silky smooth 16-235 or 0-255. Well I guess my previous post meant to say: "Know thy-TV". I should add that on a plasma the Contrast control is also the Panel Luminance (how bright is the TV), so I can't turn the Contrast up to clip over 235 like in an LCD. So I prefer to use 0-255 in madVR (now that it's smooth), to clip above 235 so that I will not see unwanted artifacts, but chroma resolution is compromised. @Madshi, What do you think: No Chroma sub-sampling (4:4:4) at 16-235 & BTB+WTW VS 4:2:2 and 0-255 no BTB/WTW. The first option is what the TV expects and what any player would output, no Luma dithering, 4:4:4. The second is a PC configuration, has no BTB/WTW, but also dithers the Luma to 0-255 and is 4:2:2 on my TV. The question is: What will benefit the picture quality: 4:4:4 & no Luma Dithering OR clipped WTW/BTB?
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 26th July 2014 at 09:54. |
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26th July 2014, 09:30 | #26983 | Link | |
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The very first implementation of error diffusion algorithm that you made was based on OpenCL, but later the implementation was made using directcompute processing. I think it was due to so many issues that arose during that time with OpenCL processing. Now that Open CL processing works properly on most systems, would you consider offering an optional support for error diffusion algorithms with OpenCL processing? |
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26th July 2014, 09:33 | #26984 | Link | ||
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(The only exception is when a high-bitdepth source must be fed into DXVA for deinterlacing/scaling. In that case madVR has to dither the source down to 8bit for DXVA.) Quote:
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26th July 2014, 13:07 | #26987 | Link | ||
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a plasma with 4:4:4 support. i'm getting very very weak right now. |
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26th July 2014, 15:01 | #26988 | Link | |
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I have tried my PS3 and everything is smooth when viewing the greyscale ramp image on a USB stick with RGB Full mode. Apparently this banding problem is created when using an Nvidia gpu HDMI in RGB mode & my TV. Switching to YCbCr444 makes everything smooth again, even with "Direct Pixel" 4:4:4. Seems like the ST60 doesn't like the RGB Full NVidia has to offer, but with the PS3 it's just fine. The "HDMI Content Type" is an HDMI 1.4 feature that automatically switches/sets TV functions like Sharpness, Vivid, Color etc... Read: HDMI Content Type In the Nvidia control panel its in "adjust desktop color settings" -> "content type reported to the display". I have disabled this feature straight away on my TV and everything is just right. Sharpness should be on "0" with this model anyway. Yes, a good Plasma is great fun. EDIT: I found this great article which explains all I needed to know about RGB, YCbCr and Range. http://www.audioholics.com/home-thea...vels-xvycc-rgb IMO: The ideal output to a TV is RGB Full from GPU and Limited 16-255 from madVR and set the TV to RGB Limited, anything else expands/compresses the video content. For example when YCbCr is selected in Nvidia CP the OS is compressed to 16-235 and along with it madVR output which already expanded the content from 16-235 to 0-255, in effect a double compressing/expansion, WTW/BTB are clipped. Same goes for RGB limited at the GPU (Default before madLevelsTweaker) which compresses the OS to 16-235 along with anything on screen including madVR output. The ideal option when using a HTPC is Full RGB from the GPU and Limited from madVR (or any other software player), then select Limited RGB on the TV. This preserves the BTB and WTW and does not undergo any expansion or compression. Brightness and Contrast on the TV will have the same effect as though a stand alone player is connected to a TV with its native YCbCr. When you calibrate your display with these settings they will also be effective for any other YCbCr devices like Set-Top Box or Blu-Ray Player. In effect YCbCr's range is 16-235, BTB 0-15, WTW 236-255. So I decide to stick with RGB Limited on the TV and madVR, and RGB Full at the GPU output, to simulate a stand alone player only x1000 better because of madVR.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 26th July 2014 at 17:41. |
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26th July 2014, 21:34 | #26990 | Link |
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Is anyone using Intel DXVA2 scaling? I find it looks too sharp/punchy, however the performance is great. Is it known what scaling Intel is using for this? Even Bicubic 75 AR provides an easier image on the eyes.
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26th July 2014, 22:08 | #26993 | Link | |
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Since I don't use iGPU anymore, here's an instruction from Google: https://communities.intel.com/message/240901#240901 |
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26th July 2014, 22:36 | #26994 | Link | |
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I hope michkrol's suggestion works for you. There are a lot of other things the drivers might do to the video to make it look too sharp/punchy. |
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27th July 2014, 01:08 | #26997 | Link |
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madshi, is it possible for you to add DX11 support again? When I use the web installer, it gives me an error saying that a newer version of DirectX has been detected on the system and it cannot proceed. I think there may be a link with DX9 and allowing NVIDIA to take over rendering.
Please let me know if there's anything else I can try or if you require more info. Thanks. |
27th July 2014, 02:41 | #26998 | Link | |
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DirectX End-User Runtime
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Try this one if you haven't already: http://www.microsoft.com/en-us/downl...ils.aspx?id=35
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System specs: Sager NP9150 SE with i7-3630QM 2.40GHz, 16 GB RAM, 64-bit Windows 10 Pro, NVidia GTX 680M/Intel 4000 HD optimus dual GPU system. Video viewed on LG notebook screen and LG 3D passive TV. |
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27th July 2014, 03:00 | #26999 | Link | |
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27th July 2014, 05:37 | #27000 | Link |
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Hey madshi, not sure if you're aware of the problem of waking up from standby. I am using Windows 7 64 bit, MPC BE 32 bit (obviously), MadVR 0.87.9
When I resume a video after standby it doesn't play. Gives a Direct3D error or something. I found a post of a user on XP complaining about the same issue: http://forum.inmatrix.com/index.php?showtopic=13646 |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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