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> Yes, they do. Why are you so certain? > you may be using an older nvidia gpu. Tested AMD Vega 7 inside Ryzen 5 5600U, and nVidia 1080Ti — dxcapsviewer.exe

> Yes, they do. Why are you so certain? > you may be using an older nvidia gpu. Tested AMD Vega 7 inside Ryzen 5 5600U, and nVidia 1080Ti — dxcapsviewer.exe shows the same result, no overlays are supported. Only the D3DCURSORCAPS_COLOR hardware cursor is there. > the video can become fullscreen and to take the only layer from dwm Indeed, exclusive D3D full-screen mode allows to bypass dwm.exe compositor, even on modern Windows. But I don’t think it’s evidence of any hardware composition being used.

charcircuit 3y ago
>Why are you so certain? Look at documentation from GPU manufacturers, look at GPUs that support multiplane overlay on windows. >But I don’t think it’s evidence of any hardware composition being used. It's not, but it doesn't require using 3D graphics to put the texture on the display.
- Const-me 3y ago
  > GPUs that support multiplane overlay on windows According to Microsoft, MPO is an optional feature: https://learn.microsoft.com/en-us/windows-hardware/drivers/display/multiplane-overlay-hardware-requirements https://learn.microsoft.com/en-us/windows-hardware/drivers/d... According to random people on the internets, the feature is broken for both nVidia and AMD: https://www.reddit.com/r/AMDHelp/comments/yr5dda/can_someone_explain_to_me_what_mpo_does/ivyj8bl/ https://www.reddit.com/r/AMDHelp/comments/yr5dda/can_someone... nVidia agrees and recommends disabling MPO with a registry setting: https://nvidia.custhelp.com/app/answers/detail/a_id/5157/~/after-updating-to-nvidia-game-ready-driver-461.09-or-newer%2C-some-desktop-apps https://nvidia.custhelp.com/app/answers/detail/a_id/5157/~/a... > it doesn't require using 3D graphics to put the texture on the display In practice, 3D graphics is the best way to put pixels on the display. At this point, I believe other ways are remnants of the old GPUs which had 2D blitting hardware.

charcircuit 3y ago

>Why are you so certain? Look at documentation from GPU manufacturers, look at GPUs that support multiplane overlay on windows. >But I don’t think it’s evidence of any hardware composition being used. It's not, but it doesn't require using 3D graphics to put the texture on the display.

Const-me 3y ago
> GPUs that support multiplane overlay on windows According to Microsoft, MPO is an optional feature: https://learn.microsoft.com/en-us/windows-hardware/drivers/display/multiplane-overlay-hardware-requirements https://learn.microsoft.com/en-us/windows-hardware/drivers/d... According to random people on the internets, the feature is broken for both nVidia and AMD: https://www.reddit.com/r/AMDHelp/comments/yr5dda/can_someone_explain_to_me_what_mpo_does/ivyj8bl/ https://www.reddit.com/r/AMDHelp/comments/yr5dda/can_someone... nVidia agrees and recommends disabling MPO with a registry setting: https://nvidia.custhelp.com/app/answers/detail/a_id/5157/~/after-updating-to-nvidia-game-ready-driver-461.09-or-newer%2C-some-desktop-apps https://nvidia.custhelp.com/app/answers/detail/a_id/5157/~/a... > it doesn't require using 3D graphics to put the texture on the display In practice, 3D graphics is the best way to put pixels on the display. At this point, I believe other ways are remnants of the old GPUs which had 2D blitting hardware.