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19th April 2014, 14:13 | #26061 | Link |
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Few days ago, I bought Spyder4 Elite and calibrated my desktop's display accordingly.
80 cd/m2, gamma 2.2. The software showed a graph that my display is 84% of sRGB which is okay by me. SpyderUtility.exe automatically applies the generated ICC profile on startup. Now, the question on madvr configuration. What setting do I need to select at 'devices'-->'Dell XXXXX something'-->'Calibration'? Should I select 'disable calibration control for this device' or 'this display already calibrated'? Next, how about the checkbox 'disable GPU gamma ramps'? |
19th April 2014, 14:28 | #26062 | Link | |
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Quote:
The 'disable GPU gamma ramps' option is for when your 3DLUT already includes the calibration, either integrated into the values or appended. This will disable the calibration loaded into your GPU, so other programs will look different while madVR is active. The exception to this is when you use the windowed overlay mode, but I forget what the right settings are for that
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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) |
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19th April 2014, 19:33 | #26063 | Link |
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Is it possible to make madVR read matroska tags in addition to "tags" with madVR settings in the file name?
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19th April 2014, 20:01 | #26064 | Link |
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madshi,
Can you please explain how Source Levels work? For example; when I cut the Black Source Level to -5, does madVR actually clip the blacks or rolls off gradually (in 16-bit) like the brightness slider? I use Black Source Level to emulate BT.1886 curve to my taste, instead of using the Brightness control. Brightness control effects too much of the middle shades, while Black Source Level only the few critical shades where it matters the most for Great vs Not so great movie experience. These first few shades of black are where the difference between BT.1886, sRGB or Power 2.2 lies, it also where a good vs poor apparent contrast lies. In other words it'd be nice to have better control over the dark shades like a Black Offset Control on a high quality TV without the need of work around tricks.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 19th April 2014 at 20:14. |
19th April 2014, 22:21 | #26065 | Link |
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Yes i am using error diffusion type 2. now as you say i am gonna try ordered dithering. thanks!
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20th April 2014, 04:11 | #26066 | Link |
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I don't understand why the image upscaling has any effect, when using nnedi3. If I'm using nnedi3 to upscale 720p with a display resolution of 1080p, why is the image upscaling effecting performance?
You probably shouldn't be using the brightness control to emulate anything. Use it to set your (display) black level.
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http://www.7-zip.org/ Last edited by Audionut; 20th April 2014 at 04:15. |
20th April 2014, 07:04 | #26068 | Link |
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Of course, thankyou.
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20th April 2014, 07:47 | #26069 | Link |
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I've used the madVR levels tweaker for my HD4000 and am unsure if I need to set PC levels on input or not.
If I set madVR to TV levels for output which is what's recommended, I have to set TV levels for input to have black >16 to flash with a test pattern. Alternatively if I have it set to PC levels for input which is what I would expect given I've forced 0-255 output I require PC levels set for output to see black >16 flash with a test pattern. If I set PC levels as input and TV as output (what I would expect the correct settings to be) I have black >2 flash, which isn't what I would expect given output is supposed to be 16-235. What is the correct setting here? Thanks. |
20th April 2014, 07:48 | #26070 | Link | |
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Quote:
I want to elevate or lower only the first 3-10 black steps without effecting the other steps, its called Black Offset control on some TV's. I intentionally crush the blacks (but not clip them) to make the image look more contrasty. Custom Range Gamma/Brightness Control (in 16-bit) is what I'm striving for. JanWillem32 has written a shader for this once, but the shader is 8-bit thus creating a lot of banding, ffdshow is also 8-bit.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. |
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20th April 2014, 08:05 | #26071 | Link | |||
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Quote:
Quote:
You are sending (output) limited range signal, but the TV expects full range signal thus showing all the shades. Quote:
If the TV input range setting effects all the inputs of your TV, set the Input and the tweaker to 16-235 because most probably than not your satellite box is 16-235 too. If it effects only this single input and you use your HTPC/PC not only for movies but also for internet and games, you should set 0-255 for this input and at the tweaker output. In both cases madVR range setting in its control panel should be set to full range 0-255. Remember that there is also a range setting in madVR control panel, and that the Range Tweaker software is only for HDMI. In any case, your TV Input, Tweaker (HDMI) Output should always match, unless... purpose.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 20th April 2014 at 08:16. |
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20th April 2014, 08:38 | #26072 | Link | |
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Quote:
The levels changed in the madVR control panel "devices-> TV-> this display expects following RGB levels" affect output levels but there's nothing for input levels. If this is the case, shouldn't madVR ideally set the source levels to PC automatically after using the tweaker? I don't want to have to use the keyboard shortcut to change this each time. |
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20th April 2014, 08:47 | #26073 | Link |
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madVR handles the input levels automatically, you don't need options or anything for them. You can override it on a per-file basis, but its only useful if madVR detects the wrong input level. The input level is defined by the file, not any setup in your display chain.
For the level settings, there is basically 3 combinations of settings: (1) TV accepts PC/Full levels: Set madVR to PC/Full, set GPU to PC/Full - This is usually considered the better option, if your TV can do it. (2) TV accepts only TV/Limited levels: (a) Set GPU to PC/Full and set madVR to TV/LimitedIn the second case, both a and b have small drawbacks. With (a), you get crushed black/white on the desktop, but everything is perfect in madVR. With (b), you get proper colors everywhere, except that the GPU is doing the PC range -> TV range conversion, which may not be the highest quality and end up in banding. NEVER set both madVR to TV/Limited AND GPU to TV/Limited, you get double range compression. Because of these drawbacks with either a or b, its usually recommended to use (1) if your TV accepts it. Its only "downside" is that BTB/WTW are lost, but its arguable if those are even worth keeping. If you insist on WTW/BTB, the 2a setting is probably the next best for video quality, if you can live with crushed black/white on the Desktop. However you set it up, the test patterns should only show 16-235 after calibration.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 20th April 2014 at 09:06. |
20th April 2014, 09:09 | #26074 | Link | |
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Quote:
You should NOT see below 16 and above 235. Remember this: In Video 16 is absolute black & 235 is absolute white. In PC 0 is black & 255 is white. If you want the video to show correctly, 16 needs to be absolute black anywhere. madVR needs to be aware of these settings to display the correct image. 1. madVR setting -> Devices - (Your Display) -> Properties -> PC levels (0-255). 2. madLevelsTweaker.exe -> Force PC Levels (0-255). 3. Set you TV to PC Levels 0-255. What the "this display expects following RGB levels" does is: When set to PC range it stretches the video content range (16-235) to PC range (0-255). While in TV range it does nothing and leaves the video content range untouched.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 20th April 2014 at 09:42. |
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20th April 2014, 09:35 | #26075 | Link | |
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Quote:
It would be cool if someone could check if the current cards do introduce any banding with 16-235 output. |
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20th April 2014, 12:19 | #26076 | Link | |
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Quote:
i think option 2(a) is best, cause ovies handed at 16-235, right.. |
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20th April 2014, 12:52 | #26078 | Link |
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If one uses his HTPC strictly for movie watching, Nev's option (2a) is best, just because it eliminates the need of Dithering and range conversion in madVR (or any other video software, or GPU driver/settings), and retains BTB & WTW.
The output would be like what you expect to see in a top-notch Blu-Ray Player, no range conversion or dithering anywhere (not that I can see any of them with my naked eye with madVR). Then use your TV's Brightness & Contrast like you normally would for calibration (this will crush/clip the blacks and whites outside the video range). This option is best if you want the absolutely most pristine video signal out of your HTPC, and don't care about how Desktop software will look like. If the HTPC and your display are not only for movie watching, option (1) is best. Make sure you always use Dithering with this option. I myself am on option (1), I use a PC monitor. P.S I'm back with my trusty old Dell U2410 IPS monitor, gave the AMVA away.
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System: i7 3770K, GTX660, Win7 64bit, Panasonic ST60, Dell U2410. Last edited by James Freeman; 20th April 2014 at 13:37. |
20th April 2014, 15:52 | #26079 | Link |
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Happy Easter every one!
What does fullscreen exclusive mode do? I found that if I check enable automatic fullscreen exclusive mode, rendering queue struggles to go past 0, however with it unchecked the queue fills to full in one second and there is no frame drop. |
20th April 2014, 15:55 | #26080 | Link |
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That's not true. The chroma scaling and the rgb conversion already make dithering mandatory. Range conversion just slightly changes the coefficients used for the rgb conversion, it doesn't add a new step in the process.
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LAV Filters - open source ffmpeg based media splitter and decoders |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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