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9th January 2018, 03:34 | #48141 | Link | |
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HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED |
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9th January 2018, 12:08 | #48143 | Link |
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I got a quick question about DXVA2 copyback in relation to profile 2, UHD and the GTX 1030 (and maybe 1050) and LAV / madVR.
I'm sure I am correct to think that in a dual GPU PC setup using LAV and DVXA2 copyback that I could use a GTX 1030 to decode video profile 2 that is then output on another GPU to the display (which does not have provile 2). Now, in a setup like this am I right to assume that the memory on the 1030 does not come into play when it comes to the stuff madVR does and the only important memory madVR is intrested in from a GFX card standpoint would be that on the card with the port outputting GFX to the display? So if for example I have a GTX980 and a GTX1030, madVR would not touch the 2gig memory on the GTX1030 and would only be limited by the 4gig memory on the GTX980? At the same time LAV would only HW decode on the GTX 1030 which is then passed (copyback) to the GTX 980? Has anyone got a setup running like this (does not have to be those two GFX cards) and if so, is there a big hit in time for the cards to copy data from one to the other? |
9th January 2018, 12:14 | #48144 | Link | |
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Last edited by mytbyte; 9th January 2018 at 12:41. |
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9th January 2018, 12:48 | #48145 | Link | |
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the biggest possible problem in such a setup should be the PCIe speed. i'm not sure if UHD 60 FPS can be done with PCIe 3 x8 but 4x could is dangerously low. so if your board support 2 GPU with PCIe 3 8x it may work if it only supports 16x 4x you maybe in trouble. @mytbyte HDR->SDR conversion needs a lot of processing power feel free to ignore it and buy a card that can't do it. HDR passthrough is fast HDR->SDR conversation is not. like a said before the 550 is not worth it's money get a 560 for little more that is 2x as fast. if you want YT HDR you need either a beefy CPU or a 1030-1050 ti. if you want a GPU that can do HDR->SDR conversation you need a GPU with enough processing power to do that. |
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9th January 2018, 12:50 | #48146 | Link | |
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Here's the thing, I too thought this way, I was convinced FSE was required on NVIDIA until I tested it myself. When I said I hadnt tested it I meant I had not tested this batch file, 3D was working on my system with FSE turned off but it wasnt always working due to the 3D turning itself off all the time, if I deployed the batch file 3D should be working fine. I went back to AMD because I was getting system hangs and far more black screen loss of handshake than I was with My AMD card, and my AMD card always works in 3D. No idea why your NVIDIA card doesnt work with it off then, very odd. EDIT - have you tried windowed mode? Last edited by mclingo; 9th January 2018 at 12:55. |
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9th January 2018, 13:02 | #48148 | Link |
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luma is more important than chroma.
use your eye to see what works best for you. i personally will never go lower than super XBR on chroma. and i personally would never use a signal that subsamples or a TV that can't do 4:4:4 because the image quality differences are obvious to me. |
9th January 2018, 18:17 | #48158 | Link |
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They are rendered to images on the CPU at the display resolution.
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madVR options explained |
9th January 2018, 19:47 | #48160 | Link | ||
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the "new subtitle interface" it uploading image that are scaled or even uploaded at the target resolution. remember the nnedi3 copyback issue which was at best 120 FPS for FHD. Quote:
the point is not pcie 16x 2.0 but if pcie 4x 3.0 works. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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