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20th October 2016, 23:01 | #39781 | Link |
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For a large part it's completely new, but it's somewhat similar to the Bilateral chroma scaler. On my GTX 960 it takes about 2~3 times as long as bicubic, or about an additional 0.75ms. Still need to optimise it some more though. At any rate it should be significantly less performance intensive than NNEDI3.
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20th October 2016, 23:06 | #39782 | Link | |
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20th October 2016, 23:40 | #39783 | Link | |
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I hope I am wrong but it seems that the MPDN development is in standby. Your previous algorithms/shaders were initially made for MPDN. Do you still create them for MPDN? Is there an hidden option in madVR to use external shaders? |
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20th October 2016, 23:44 | #39784 | Link |
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Yeah, and I do think the sharpening looks good (though I can't judge whether it's accurate to the original). It's mostly the topmost fold of cloth on the sleeves of both men that looks a bit jagged where NNEDI3 makes them look like smooth gradients. If you could fix that I think it would improve upon NNEDI3 in that image, assuming the sharpness is 'correct' (for some sense of the word).
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21st October 2016, 00:32 | #39785 | Link |
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Probably not.
Yeah, it's meant just for the chroma. It's basically another attempt at trying to recover chroma information from luma. So far it seems to be more successful than other methods I tried, although very small details can be a bit problematic. To avoid going too far off topic I won't go into depth on the current state of MPDN but I still use it to try out new algorithms. No hidden options for injecting shaders in MadVR, unfortunately. |
21st October 2016, 09:05 | #39786 | Link |
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Hi all,
This is about RGB output levels with a 10 bits display (so dithering 10bits and more activated in MadVr). I know this is not a new question but I would like a clear explanation as we can read everything and its opposite arround this subject. Basically there are 3 options: Setup 1 : GPU outputs 0-255 MadVr outputs 0-255 Display expects 0-255 Setup 2: GPU outputs 16-235 MadVr outputs 16-235 Display expects 16-235 Setup 3: GPU outputs 0-255 MadVr outputs 16-235 Display expects 16-235 Problems: -There is no way on my UHD (10 bits) TV to select limited or full range. - Graphic Card GTX 1070: When output is set to 2160p(4k) - RGB Full range, bitdepth is limited to 8 bits / To have 10/12 bits outptut on the GPU, I have to lower outptu level to limited range (16-235). So what is the best setting for my own use (4k) ? Madvr (0-255 / 10 bits) --> GPU (0-255 / 8 bits) --> Display OR Madvr (16-235 / 10 bits) --> GPU (16-235 / 10 bits) --> Display OR Madvr (0-255 / 10 bits) --> GPU (16-235 / 10 bits) --> Display OR (other ?) Thanks |
21st October 2016, 09:56 | #39787 | Link | |
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21st October 2016, 11:46 | #39788 | Link | |
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21st October 2016, 12:00 | #39790 | Link |
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Yeah. most are the result of not using the full luma information. As far as I can tell Superxbr isn't doing much better. I managed to beef things up a bit and get this which is somewhat better, but I need to check if I can raise the strength that much without making other images worse.
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21st October 2016, 17:39 | #39792 | Link | |
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Like we were discussing earlier, FLOPS doesn't give a 1:1 performance boost, but for NNEDI3 the card with more FLOPS runs NNEDI3 faster.
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21st October 2016, 17:41 | #39793 | Link | ||
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At that point NNEDI, bilateral or reconstruction or even Jinc look better. At least if you're alergic to jagged edges. By the way, anyone knows if there is a big difference in image downscaling between SSIM 2D and 1D, or rather what is the difference?
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21st October 2016, 20:31 | #39795 | Link |
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I'm a big fan of bilateral with some superchromares, so I'm looking forward to your new scaler, shiandow. Generally, every other non-reconstruction chroma scaler will look thick and fuzzy due having half the resolution, but bilateral cleans things up nicely, as it basically works with built in line thinning. Artifacts are cleaned up a bit with SR at the cost of chroma cleanliness.
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21st October 2016, 22:57 | #39796 | Link | |
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I wish we had data comparing an R9 card with basically the same FLOPS as the RX 480. I'm fairly confident it would show the RX 480 inferior despite comparable FLOPS. |
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22nd October 2016, 09:16 | #39798 | Link |
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the 1060 has less gflops at the stock boost clock but every 1060 clocks way hjigher than the "max" boost clock that makes normal Gflop calculation pretty much worthless.
than we have openCL efficiency in the past AMD was way way better at this than nvidia even with copyback bug. |
22nd October 2016, 10:18 | #39799 | Link |
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Sorry guys, my new algo needs some more tweaking time. Maybe 1-2 weeks more, I don't know. Quality is constantly improving, though. Performance seems ok, but will require a decent GPU.
Will be back to answer all open questions/comments when the new algo is completed. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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