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20th December 2016, 06:51 | #41621 | Link |
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Huh, you're right, didn't notice but I think it might be due to other factors, pressed some hotkeys by accident so I'll retake another screenie of the same content to remove that possibility.
This rendering time issue is only happening in 10bit btw. 8 bit is normal(12-14ms) and very little dropped frames. EDIT: Another stats screen, took it after letting the content run a good 10 minutes, Smooth Motion off this time not really that different about 8ms difference but no abnormal framedrops so I'm uncertain what caused that Last edited by EncodedMango; 20th December 2016 at 07:22. |
20th December 2016, 08:14 | #41622 | Link |
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Reconstructing Chroma with a 10-bit file is too taxing on your GPU. Your render time should be lower than 41.71ms or you will lose sync and if it's much higher than that, then it will be a stuttering mess and finally a slideshow.
How does it perform with Jinc? |
20th December 2016, 08:45 | #41623 | Link |
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Gradual noise reduction
Hi i found a solution to my problem of a lot of noise in old remastered movies. With ffdshow + blur & NR. Applying only a little gradual denoise (set to 40) gives a good result and the loss of quality is acceptable. Of all the options I tried, I think the best way to reduce noise in old movies.
I hope that it would be useful to someone.
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"To infinity, and beyond!" Last edited by Oguignant; 20th December 2016 at 08:52. |
20th December 2016, 11:30 | #41624 | Link |
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There's a new downscaling algorithm presented in "Rapid, Detail-Preserving Image Downscaling", which seems to have better performance and result compared to SSIM.
Will it be in madvr's downscaler list in the future? Last edited by WolframRhodium; 20th December 2016 at 11:35. |
20th December 2016, 17:38 | #41626 | Link |
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I agree with this.
Smooth motion doesn't do much either way and can increase render times considerably when compared to having it turned off For me on 2 different cards using Ordered vs Error Diffusion 2 didn't do much of a difference, about same render times, or likely the difference is in the order of 1-2ms, not ~10ms. GTX 970 is very strong, using Error Diffusion shouldn't pose a problem. I noticed something. with the latest madVR and MPC-HC my CTRL+J screen OSD thingy flashes sometimes. I use it to compare different settings and it keeps flashing sometimes, like the subtitle flashing problem. How do we fix this, or is it a known bug?
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20th December 2016, 18:36 | #41628 | Link | |
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Quote:
Smooth motion is very important when using a 60Hz display for anything but 30fps video.
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madVR options explained |
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20th December 2016, 19:05 | #41629 | Link | ||
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Quote:
Quote:
Without SM : 24ms -> 25.5ms With SM : 25.5ms -> 28ms For 1080p content on 4K screen (upscaled by madVR) Without SM : 23ms -> 27.5ms With SM : 25.5ms -> 35ms So yes, Smooth Motion has a fairly significant impact on performance with Error Diffusion 2 in 4K, and the 1-2ms difference is only for 1080p content on 1080p screen without SM. Edit : The framerate of the source material was 23.976fps and the refresh rate of the screens 60Hz. Last edited by Neo-XP; 20th December 2016 at 19:34. |
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20th December 2016, 20:43 | #41630 | Link | |
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Quote:
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20th December 2016, 22:10 | #41631 | Link |
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I suppose madVR or MPC-HC sometimes can't correctly get framerate info from LAVfilters or another decoder/splitter when ffdshow raw is used. I've seen this when using SVP on some DVD videos.
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I'm infected with poor sources. |
20th December 2016, 22:21 | #41632 | Link |
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ffdshow always blocks all communication between LAV and madVR.
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madVR options explained |
21st December 2016, 01:15 | #41635 | Link |
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My display is 75Hz from factory, and smooth motion has more impact and doesn't have much effect visually. Videos that are 24 fps or 23.xx will still look jumpy if the objects is moving across the screen and it's moving too fast.
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21st December 2016, 01:53 | #41636 | Link |
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What you notice is simply low frame rate video but there is another issue caused by frame time mismatch.
With a 75 Hz display and 23.976 fps video each frame wants to be displayed for 41.71 ms but Vsync is every 13.3 ms. This means that most frames are displayed for 40 ms but every ~8 frames one frame is displayed for 53.3 ms. This isn't too bad, only 33% longer, you might not notice it but it isn't ideal. The effect is worse at 60 Hz, with half the frames displayed for 33.3 ms and the other half displayed for 50 ms, 50% longer. This is quite visible (to me at least) as uneven choppiness or judder, even worse than normal low frame rate video. Smooth motion allows madVR to display every frame for exactly 41.71ms. edit: with 29.970 fps video on your 75 Hz display you get a similar effect to 23.976 fps video on a 60 Hz display. Half the frames are displayed for 26.67 ms and the other half for 40 ms, 50% longer.
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madVR options explained Last edited by Asmodian; 21st December 2016 at 03:24. Reason: Added %s, fixed frequency |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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