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<blockquote data-quote="el Filou" data-source="post: 1231059" data-attributes="member: 78516">From what I understand:- madVR IVTC, black bars detection, and HDR per-frame measuring, work on CPU not GPU so they can't access the image when using Native (I think that would be possible now with GPUs that have &quot;unified virtual memory&quot; or something - I don't know the official way Microsoft calls it - where you can access their memory from CPU, but code would have to be modified)- in addition, Native D3D11 doesn't support deinterlacing yet, so cannot be used for many TV programmes.- in addition, Native DXVA2 has blurred chroma on NVIDIA cards (but may not be always visible)That's why madshi still recommends copyback. When he implements D3D11 deinterlacing I think D3D11 Native will be best if you don't need black bars detection (do people who don't have projectors really need this?) or IVTC (I only watch PAL so I just set LAV to forced weave for films, I don't waste CPU cycles that way <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />).The best would be if LAV could use profiles like madVR (e.g. &quot;if &gt; 1080p then use Native else use Copyback) <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite27" alt=":whistle:" title="Whistling&nbsp; &nbsp; :whistle:" loading="lazy" data-shortname=":whistle:" />I have the same problem. I thought it was because of my slow Core 2 platform but you've got an i7 so that is weird. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused&nbsp; &nbsp; :confused:" loading="lazy" data-shortname=":confused:" /></blockquote>

[QUOTE="el Filou, post: 1231059, member: 78516"] From what I understand: - madVR IVTC, black bars detection, and HDR per-frame measuring, work on CPU not GPU so they can't access the image when using Native (I think that would be possible now with GPUs that have "unified virtual memory" or something - I don't know the official way Microsoft calls it - where you can access their memory from CPU, but code would have to be modified) - in addition, Native D3D11 doesn't support deinterlacing yet, so cannot be used for many TV programmes. - in addition, Native DXVA2 has blurred chroma on NVIDIA cards (but may not be always visible) That's why madshi still recommends copyback. When he implements D3D11 deinterlacing I think D3D11 Native will be best if you don't need black bars detection (do people who don't have projectors really need this?) or IVTC (I only watch PAL so I just set LAV to forced weave for films, I don't waste CPU cycles that way :)). The best would be if LAV could use profiles like madVR (e.g. "if > 1080p then use Native else use Copyback) :whistle: I have the same problem. I thought it was because of my slow Core 2 platform but you've got an i7 so that is weird. :confused: [/QUOTE]

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