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12th June 2016, 21:44 | #38301 | Link | |
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interlaced output works by taking an progressive image and turn this into an interlaced image in the GPU. so you are not winning anything from this. if you want to send an interlaced image disable display modes and set your screen to an interlaced mode if available. |
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12th June 2016, 22:41 | #38302 | Link |
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Can you explain these features:
- Preserve hue in... - measure each frame's peak luminance - Restore details in compressed highlights. Does this involve image upscaling, sharpening?
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
12th June 2016, 22:58 | #38303 | Link |
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Well, imagine an out of gamut highly saturated greenish color. It might have RGB values [50, 320, 40]. Now if you do nothing, 320 will at some point be clipped by someone to 255, so the color will mutate to [50, 255, 40]. This is a different hue than the original color, which is not good. A better method would be to either darken the color (divide all 3 components by 320/255). But we don't really want to darken colors, either. So we could try to desaturate the color. But in which color space? E.g. YCbCr or even XYZ or xyY are not hue linear. So desaturating colors in those color spaces will still change hue slightly (but not as much as naive clipping). So the "Preserve hue" option allows you to switch between different methods. Of course the "high quality" setting is the best, but also the slowest.
This measures each frame's peak luminance, and then uses these measurements to optimize the tone mapping curves to each frame in the video. Without those measurements there's currently only one global metadata per video available. But not all scenes in a movie are identical! In some scenes you have much higher peak luminance pixels than in other scenes. So one global peak number for the whole movie is not optimal. At some point we might get dynamic metadata to allow peak luminance metadata per scene. But it's not available yet, so these measurements are something I came up with to optimize quality right now as much as possible. When doing tone mapping, you're compressing highlight image areas into a smaller data range. Doing that is necessary, but results in lost details. So the "Restore details" option tries to restore the detail that was lost due to tone mapping. It does so by selectively sharpen the image (only where it's needed). This option is rather subtle, but in some scenes there's a visible difference. (Upscaling is not involved.) |
13th June 2016, 01:05 | #38306 | Link |
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Is Dolby Vision metadata now recognized and passed-through?
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
13th June 2016, 01:52 | #38308 | Link | |
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13th June 2016, 02:46 | #38309 | Link |
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So I updated my driver and it switches to stereoscopic resolution when I play mvc mkv file. But I'm not getting 3d. Its like it's switching to 3d and playing the 2d file and then when I exit, it stays in 3d resolution and I need to manually go to display panel and turn off 3d to get back to normal 1080p resolution.
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13th June 2016, 03:53 | #38310 | Link | |
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But for the sake of explanation, the FSE lag I was experiencing is hard to describe - it was not smooth, like camera panning judder except it was happening in every single scene. The motions were not smooth, felt off, slightly delayed but not enough to have any audio syncing issues. |
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13th June 2016, 04:36 | #38311 | Link |
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does madVR Support assFilterMod ?
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13th June 2016, 07:35 | #38313 | Link | |
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by using bilinear chroma scaling and DXVA image scaling dxva is used for chroma scaling if image scaling is needed else it is using your normal chroma scaler i never heard a positve word about dxva chroma scaling and quality depends on the used hardware and/or driver. |
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13th June 2016, 08:01 | #38314 | Link |
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Stable as not crashing, or better video performance with Madvr?
Windows 10 is working nice on my PC, but if Madvr performes much better under Windows 8.1 I would very much like to know, and why, if you can spare the time explaining this to me. Thanx
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13th June 2016, 11:27 | #38315 | Link |
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If I remember right, I read AMD drivers sometimes cause the render queue to drop. Does anyone know if this has been fixed in certain driver versions?
I'm having frame drops from time to time, I dunno if they are a render queue issue or an SVP issue. It certainly is exacerbated with SVP but I dunno if that is the case because SVP takes too long for some frames or if the GPU just has more to do so I see the issue. Thanks in advance! Last edited by SpoCk0nd0pe; 13th June 2016 at 11:45. |
13th June 2016, 12:01 | #38316 | Link |
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this doesn't sound like an AMD driver problem too me. r9 270 was working very well in the past. and yes of cause SVP could cause to high GPU usage from time to time so madVR has to drop frames.
but this is still a guess within the given information. |
13th June 2016, 12:29 | #38317 | Link |
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Thank you for the quick response!
Without SVP the queues sometimes empty themselves for no apparent reason, render time is about 6 ms. I do not get dropped frames in that instance. With SVP the queues empty approximately just as often with the difference that I do get dropped frames. If I enlarge the GPU queue size, the frame drops with SVP seize to happen (enlarging the present queue on the other hand gives me dropped frames). It seems I need about 16 frames in advance in my render queue. I'm on Catalyst 15.7.1 with an r9 290. Last edited by SpoCk0nd0pe; 13th June 2016 at 12:35. |
13th June 2016, 17:48 | #38319 | Link | |
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I'm not using SVP and latest Crimson 16.6.1 works very well for me in madVR (with software decoding). GPU is R9 390. |
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13th June 2016, 19:59 | #38320 | Link |
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In v0.90.20 display's peak luminance is set to 120 nits and it works like a charm.
In v0.90.21 The problem appear when the value is at 120 nits or 180 nits. At 256 nits the images look good. Another thing: if I set any value to display's peak luminance and then I disable the HDR processing, the display's value will not reset. Last edited by Vegekou; 13th June 2016 at 20:03. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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