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7th January 2020, 15:49 | #58321 | Link |
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The downloads links were all removed from here:
https://forum.kodi.tv/showthread.php?tid=345566 I downloaded 3.0.1 and again it doesn't work. Video plays, but no HDR in OSD of TV and very greyisch. I don't know what I am doing wrong. Last edited by Klaus1189; 7th January 2020 at 15:58. |
7th January 2020, 16:25 | #58322 | Link |
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Sorry guys for starting something offtopic.
Klaus1189 - you want the windows api version, which is here: https://forum.kodi.tv/showthread.php?tid=349861 Suggest any further support question should be on that thread.
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7th January 2020, 18:36 | #58323 | Link |
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Setting custom resolutions just isn't working for me. It allows me to adjust timings, I pick one that is highly compatible that says it will repeat a frame once a day or once every 6 hours or so, but when I select it i'm still repeating frames every 4 minutes.
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7th January 2020, 18:53 | #58324 | Link |
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Where do you select it: nvidia control panel or in Windows? Do you use CRU as well?
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7th January 2020, 19:44 | #58325 | Link |
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Has default tonemapper been tweaked/replaced? New version is noticeable different in terms of saturation
Older MadVR (sorry I do not remember version number) Latest MadVR 0.92.17
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7th January 2020, 19:56 | #58326 | Link |
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From changelog:
Code:
madVR v0.92.17: * small HDR tone mapping saturation improvement madVR v0.92.15: * HDR: improved overall tone mapping quality * HDR: added trade quality option "compromise on tone & gamut mapping accuracy"
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7th January 2020, 20:13 | #58327 | Link |
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Does not look like tone mapping saturation improvement to me But Who am I to judge...
Update: Unchecking option "compromise on tone & gamut mapping accuracy" fixes this issue. Old good tonemapping is back
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7th January 2020, 20:56 | #58328 | Link |
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Yes, ideally that shouldn't be checked by default imho as it's quite detrimental to quality and you're not the first person to notice it, but otoh tone mapping needs quite a lot of processing power and I suspect madshi did that so madVR runs OK with default settings even on really low-end (i.e. iGPU) hardware.
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7th January 2020, 22:15 | #58329 | Link |
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I do not think that tonemapping itself is very demanding on GPU. IT works fine on ultra low end geforce gt 710
4k image scaling is much more demanding. I have to select less intensive algorithm for that pathetic 1 CU GPU
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8th January 2020, 00:48 | #58331 | Link |
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Its not the tone mapping itself that kills your GPU, but analyzing the image to decide how to tonemap, since the new in-development test versions are basically doing dynamic tonemapping without having metadata to drive it - with great success, at that. And of course since the algorithm is still being actively changed, it may be in a more change-friendly format rather then overly optimized.
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8th January 2020, 06:54 | #58332 | Link |
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Checking "compromise on tone & gamut mapping accuracy" means that the tone mapping is done in RGB instead of ICtCp. That means changes in hue and saturation. Since ICtCp is a perceptually uniform color space, using it for tone mapping is usually considered more accurate. However, as you can see for yourself, the matter is not so simple.
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8th January 2020, 14:26 | #58333 | Link |
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tone mapping was pretty much unusable on my old RX580 without that selected, hoping MADSHI can come up with something else for lower end users that doesnt compromise saturation, he may have already done this though, hoping to get a final release soon.
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8th January 2020, 14:54 | #58334 | Link |
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Did you by any chance enable highlight recovery? That can put a heavy hit on the GPU too.
A solution to gain a few ms with 4K HDR is to use measurement files, and D3D11 native decoding if it doesn't have any downside for you (e.g. Blu-ray menus in JRiver). I can do tone mapping for 24p without any quality compromise and with highlights recovery and SSIM2D downscaling to 1080 on a 1050 Ti with measurement files, so surely an RX580 that is 2 times more powerful can do it too. Maybe switching to a lower quality chroma upscaling could help.
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8th January 2020, 18:28 | #58337 | Link |
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Indeed yes, however that switch got me from over 60ms to under 30ms where enabling highlights didnt really change it that much for me.
I actually tried lots of things, changing Chroma and stuff, this switch made the biggest different and didnt seem to do anything to the image until it was broken in the later versions.
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8th January 2020, 20:15 | #58338 | Link |
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just had another look when I got home. My rendering times are just over 30 ms but I have chroma and upscaling set to NGU high. If I select dont measure peak frame I just get a black screen, I think this is known bug so I just have compromise on luminescence selected.
This is on my 5700 msi OC which is a lot faster than my RX580 and a bit slower than the 5700XT stock overall. I'm not seeing any glitches or frame drops at 30ms so I dont mind it being that high for now, hoping the next version will be better optimised.
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9th January 2020, 11:24 | #58340 | Link |
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cheers, i'll have another look tonight then, hoping AMD will get the HDR issue fixed soon though
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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