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9th June 2011, 06:46 | #8181 | Link | |
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My TV's have no RGB options, the only option I know that has to do with the signals is the Black Level setting and I calibrated for it on Light. Changing it to Dark clips black more depending on the content. And yes I could I suppose use 0-255 PC levels in MadVR + RGB Full in CCC but then I'd have to artificially raise the brightness from say 60 to 75, but still it clips BTB and WTW info. Anyways, I'm perfectly happy with RGB Full + TV levels or RGB Limited + PC levels.
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MPC-HC/MPC-BE, Lav Filters, MadVR CPU: AMD Ryzen 5 1600, Video: AMD Radeon RX Vega 56 -> TCL S405 55", Audio: Audio-Technica M50S |
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9th June 2011, 07:53 | #8183 | Link |
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AMD has been fixing "compressed" FullRGB to real 0-255 since 11.2 only. I'd say: if you want proper PQ from madVR - get proper FullRGB transmission.
Some guys still use old AMD drivers with broken/compressed FullRGB. They use to set their displays to Limited (TV) levels to get more or less watchable picture. I did too until 11.2. |
9th June 2011, 08:26 | #8184 | Link |
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Impression from newer madVRs. Tried 0.62 and Precision 3.
Watched 3 720 videos and 1 FullHD video. With FullHD video everything seems fine. If video has size < actual display size I can't get rid of impression that dynamic range is HUGE. I mean it looks like it's out of the range sometimes. I even had to change Luma scaler from Spline to SoftCubic50 and decrease contrast on my TV from 82 to 79. Didn't make mach comparisons with < 0.62 because it seems like I'm not the only one with similar impressions. |
9th June 2011, 08:33 | #8185 | Link |
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madshi, feature request: is it possible to add an option to madVR which disables the video card's 3x1D CLUT when madVR is active, and re-enables it when playback is finished? In the same way that the refresh rate changer does it with the display mode.
The reason I ask is that I use the video card's CLUT for color correction for Windows applications (with an ICC profile), but using a 3dlut is best with madVR, so it would be great to allow switching automatically between the two. Right now if I use a 3dlut the video card's CLUT will apply on top of it, which is obviously suboptimal. Fortunately, implementing this is very easy: just use GetDeviceGammaRamp and SetDeviceGammaRamp to save, clear, and restore the video card's 3x1D CLUT. There are also similar functions in IDirect3DDevice9 but I don't know if that's actually the same thing or not. Last edited by e-t172; 9th June 2011 at 08:35. |
9th June 2011, 10:14 | #8186 | Link | |
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Edit: I did find some use with the video I found for setting the gamma, so perhaps this post is more on-topic now. ) Have you tried looking at test patterns? This whole topic is confusing to most and it only exasperated by video-cards having problems with this. For normal PC stuff (games etc,) check out this image, it is the best one I have found. If you see no difference between 0-16 and 236-255, no matter what you do to brightness/contrast, you are missing that data. On the other hand, if you do see the difference, using this pattern is a great way to calibrate your display - make it so you can just barely makeout the "dvd" words in the 0 and 255 boxes.) I have an NVidia card (not ATI) but you should have a setting to expand the output to see the missing data. Test pattern: http://i155.photobucket.com/albums/s...0-255BWDVD.png Now Videos are a whole different ballgame-and are a bit more confusing. My best suggestion is to find a Disney/Pixar Blu-Ray and run the calibration tests...in that situation it is fine if you are missing the BTB WTW signals, but you have to make sure the driver is not expanding the colors thinking it is being sent to a 0-255 display. I know on the NVidia side about a year ago they added an option to output 16-235 and thus NOT expand the source 16-235 video to 0-255. I did some testing changing my comp to TV (16-235) levels, and the madVR setting to 16-235 handled it brilliantly (i.e. it did not perform expansion, making 16 "real" black and 235 "real" white, hence the terms "BTB" (Blacker than Black...) The key here is to make sure the video test pattern does show 16 as fully black and that it immediately shows a gradient going lighter, else once again you will be missing the data regardless of your TV brightness/contrast setting (that is called "double expansion.") On the other hand, if black looks grey then you are not expanding when you should be. (That is what those of us see with a full 0-255 display with MadVR set to 16-235.) If it will help, let me know and I can find a video test-pattern and throw it up on a server or something. Edit, it took forever, but I dugup the m2ts file in my Toy Story 3 Blu-Ray! http://i155.photobucket.com/albums/s...amma-small.png Not only does it help to make sure you are seeing the correct colorspace, but I just used it to set my Gamma in MadVR! (I haven't perfected it yet - the boxes should match the background...and if you look carefully in the middle, you should see some bars on the white and black side. I am not sure if it is legal for me to post the m2ts file itself, but if anyone has any questions on this (or issues, concerns, pointers) please let me know either here or on PM...Oh, and note that the screenshot does not look correct (the squares should "melt" better - that is because I could only take a screenshot in "windowed" mode. In Exclusive mode I now have pretty nicely calibrated. (Pure Power Curve 2.30) Again I apologize to be off-topic, I hope this helped.... Last edited by Mikey2; 9th June 2011 at 11:09. Reason: found test-pattern video! |
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9th June 2011, 10:45 | #8187 | Link | ||
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http://forums.guru3d.com/showthread....22616&page=145 Quote:
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9th June 2011, 11:47 | #8188 | Link | |
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Besides, the CLUT is processed in 10bit(when applicable). |
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9th June 2011, 11:53 | #8189 | Link |
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You don't have to. It's not OT at all, but base strategy according to author: see technical discussion: by madshi. All the things here should be clarified/known for every madvr's fan.
And now I see sometimes that even "true videophiles" have no idea how to set up their devices for proper image presentation. Big problem here that we also have no idea how do those devices work. Are you sure HDMI input in your display provides proper RGB? I'm not at all. |
9th June 2011, 12:49 | #8190 | Link | ||
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(Also, just to be pedantic: AFAIK, the 3DLUT file format can in fact be used to reach D65, it's yCMS that can't) How do you know that NVidia/ATI/Intel cards have 10-bit CLUTs for HDMI/DVI outputs? Do you have a reliable source? |
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9th June 2011, 12:59 | #8191 | Link |
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I'm sorry if this problem's been discussed before, but I get "Creating the 3dlut for the display Panasonic-TV failed" error when I try to use yCMS. http://rghost.ru/10072911/image.png I have a HDMI 1.4a Panasonic plasma HDTV.
BTW, what's the preferable pixel format for my display, YCbCr or RGB? |
9th June 2011, 13:05 | #8192 | Link | |
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When I find something I could possibly help with, I simply want to give back to the community. My only problem is my posts tend to be too verbose. Anyway, to make this post still relevant: I do know that my TV has options for RGB 16/235, RGB 0-255, component 4:4:4 and Component 4:2:2, but NOT because they are explicit options. (Which they are - it is a Pioneer Kuro 5010FD Plasma...I love it. ) There was a wrench thrown into my setup: It was discovered that my Yamaha RX-V1800 had a nasty bug where it clipped all BTB/WTW signals! I had to run a CD-based firmware update in order to fix it! It wasn't as bad as double-expansion, but it was something that I never would have found without both running all of the aforementioned tests and trolling these message boards. So you definitely have a point - this stuff can be tricky to the best of us. Well, I guess this post is of little value, but thank you for the kind words. I would rather see more info than less when talking about these matters - especially since Madshi's wonderful render is so much on the cutting edge. I just need a color-meter to take it to the next level... |
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9th June 2011, 13:20 | #8193 | Link | |
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9th June 2011, 13:24 | #8194 | Link | |
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Pixel Format: RGB Full MadVR: PC Levels |
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9th June 2011, 14:27 | #8195 | Link | |
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Alternatively, if you use PotPlayer you can use DXVA with madVR if you are on Vista/Win 7. This will probably work better than HAM decoding. I doubt you're missing anything out. Your CPU is more than fast enough to handle software decoding, and you'll get better decoding compatibility with software decoders instead of using your GF 8600. Hardware decoding would only be necessary if want to do really fancy stuffs like frame interpolation or realtime AviSynth filters. |
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9th June 2011, 16:20 | #8196 | Link | |
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Hmm, I have an ATI card and FullRGB pixel format indeed crushes the image. I have no visible changes between Limited RGB, YCbCr 4:4:4 and 4:2:2. Maybe there are other merits to consider when choosing the right format? |
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9th June 2011, 19:54 | #8198 | Link |
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hello,
i am an ATi user & i am using CoreAVC software acceleration as long as DXVA is not supported with MadVR. i would like you to check some of my settings if possible. here is the coreAVC configuration panel. should i change the output formats and output levels? @ MAdVR properties i have set PC Levels (0-255)calibration dont calibrate this display (i dont know to use yCMS yet)color & gama enable gamma processing not checked @ ati catalyst control pixel format is set to 4:4:4 FullRGB |
9th June 2011, 20:21 | #8199 | Link | |
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sorry to hear you are ill hope you get better soon |
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9th June 2011, 22:48 | #8200 | Link |
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madshi, I found an issue today playing any video file that has a higher frame rate than my display refresh, when in fullscreen exclusive mode. (trying some 60hz video files today with my display at 50hz)
The problem is that some frames seem to appear on screen in the wrong order, then I might get a few seconds of perfect playback, then another few seconds of glitchy backwards / forwards motion, as I say it looks like some frames come in the wrong order. I narrowed the problem down to the enabling of the "run presentation in a seperate thread" option. With it off, the problem never happens, with it on, it seems to always happen. I'm using a GTX 295 in Wind 7 64bit. I have it turned off now and am 100% happy, just thought you should know. If you think I should report it over on the nvidia forums as a bug on their end I'll do so. I'm using madVR 0.65. |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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