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27th November 2012, 07:23 | #15821 | Link | |||||
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Last edited by turbojet; 27th November 2012 at 07:46. |
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27th November 2012, 08:46 | #15822 | Link |
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Hi Madshi
for the new version with custom pixel shader support. I just wanted to know that when you enable 10 bit or higher output sometime in a future version, will that work on NVIDIA GeForce cards (or only Quadro cards)? BTW, Jinc 4 taps AR for chroma upscaling and Jinc 3 taps AR for image upscaling, subjectively look the best to my eyes. I saw many people have recommended Jinc 3 taps AR for chroma. Is there anything not good about Jinc 4 taps AR, except for the performance hit? |
27th November 2012, 15:07 | #15823 | Link |
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Hi madshi,
I just realize that lav dxva2n decoding does not work with the old rendering path option. With geforce driver 306.97 + ION at Win7x64, Chroma Lanczos3, Luma Bilinear scaling does produce different color output from Luma DXVA scaling for 1920x1080 --> 960x540. See the ribbon's color... Luma - Bilinear Luma - DXVA EVR - DXVA Last edited by pie1394; 27th November 2012 at 15:26. Reason: Add EVR - DXVA image |
27th November 2012, 19:06 | #15825 | Link | |
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Some people like softer chroma i guess. |
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28th November 2012, 08:47 | #15830 | Link |
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Back when no Anti Ringing filter was available, softer chroma algorithms were preferred as the sharper ones produced glaring ringing. At least this is my understanding. Now I think if there is no issue of horsepower, the sharpest Jinc AR, which doesn't produce any artifacts, may be preferred.
Is the Anti Ringing algorithm not that effective on Jinc 4 taps as it is on 3 taps? I don't see any extra ringing with 4 taps (for chroma). I haven't checked with any test pattern though. When I switch from 3 taps to 4 taps (for chroma upscaling), it adds the precise amount of sharpening which I seem to like. In case of image upscaling, I agree there are no obvious differences between 3 taps and 4 taps. Last edited by omarank; 28th November 2012 at 09:26. |
28th November 2012, 14:15 | #15831 | Link | |
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Colors in (2), (3), (4) are the same but different from (1). Especially green is much too oversaturated. (1) stays the same by using copy-back-decoding instead of software. DXVA-Deinterlacing works as intended, no change in colors. Interesting: using native decoding instead of copy-back lowers cpu load as expected but as well gpu load! Furthermore dxva2 upscaling has about the same gpu load as Mitchell-Netravali. Beside that: I really appreciate the great work of madshi with this renderer, i regularly read all topics in this thread to stay updated and I´m learning more and more from you all here. Tomorrow I get a colormunki display colorimter, time to test the ycms features for giving us all the greatest renderer of all for free! |
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28th November 2012, 16:54 | #15832 | Link |
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I've made a huge mistake. My GTX 570 died, so I needed a video card ASAP, and bought a GT610 to hold me over until the replacement arrives as it was the cheapest Nvidia card I could buy locally.
I wrongly assumed that being a "600" series card it would at least be capable of handling madVR, but this thing is struggling to do any kind of video scaling, with high GPU load no matter the settings. Lanczos/Jinc are out of the question, and it can't handle downscaling Blu-ray with any of the "good" options - anti-ringing or linear light scaling is too much for it, no matter the scaling used. Even without any scaling (bilinear/nearest chroma) and decoding on the CPU, it can't handle playback of 1080p60 content. That said, I think it must be using the same (or similar) VPU as my 570, because it has no problem decoding anything I throw at it if I do use DXVA. But I wanted to confirm what someone else posted here earlier - DXVA2 upscaling uses quite a lot more GPU power than any of the bicubic variants do. It can't handle anything beyond that, but I'm happy with how SoftCubic 80 looks at least, and it doesn't need the anti-ringing filter. (in fact it looks better without it) |
28th November 2012, 17:21 | #15833 | Link |
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The 610 is a Fermi GPU (GF119), so it has a VP4 decoder, the same as in your 570. The decoders are independent of the actual GPU speed (which is truely abysmal on the 610). Only thing worse would've been a 605, but i think they only OEM that one.
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28th November 2012, 17:45 | #15834 | Link |
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I am a long time ATI man but I reached a point in my life where I would like to see how life is on the other side. What would you Nvidia fans recommend as a good video card for my Win 7 HTPC (HDMI connected) running MC18, LAV and madVR? I mostly watch ripped blurays (raw, no compression) and 720p shows.
I want the best possible quality picture from madVR but would like to keep it real in that it is a HTPC and don't need a SLI configuration for example. Currently I use a HD7770. |
28th November 2012, 17:52 | #15835 | Link |
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A GTX 660 is probably the lowest you can safely go with all the madVR options these days. Maybe a 650Ti, but i can't guarantee that. I run a 660 myself and its perfect.
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28th November 2012, 18:00 | #15837 | Link |
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For that card, it doesn't really matter how fast the decoder is.
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28th November 2012, 18:04 | #15838 | Link | |
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Still, those were more than twice the price of the 610 locally, and my priority here was buying the cheapest card that was in stock and had an HDMI output on it, so I could actually use my computer again while waiting on a replacement 570, not buying a fanless low-power card for madVR use. I was tempted to just put that money towards a Z77 motherboard instead and use the 2500K's HD3000 (access to QuickSync would be nice) but it will be worthless next year when they switch sockets again. I just noticed that my Lanczos had been set to 8-taps for some reason (no idea why) and it seems to be capable of handling Lanczos 3 AR for Chroma, with Lanczos 3 for Luma upscaling 720p30 content. It may be able to handle Lanczos 3 AR luma with Bilinear chroma at a push. Jinc is out of the question, of course. I haven't tried changing the flush settings to see if I can get some extra performance out of it. (I've left them at the defaults ever since the presentation glitches issue was fixed) I can probably overclock the card as well - even though it's fanless, there's a lot of airflow in my case. I was just surprised to see that on a low power card, where you would think it would matter the most, DXVA2 scaling pushes GPU load higher than any of the Bicubic variants, by about 10-20% in some cases. |
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28th November 2012, 18:07 | #15839 | Link | |
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Im also searching a nice kepler card for game and video both. No, GT630 is a Fermi GPU(GF108). Last edited by wanezhiling; 28th November 2012 at 18:09. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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