SM6 Feature Level is the support for the graphics card to use the features of DirectX 12, (like DirectX 12 Ultimate or RTX), just because it says it does not support the SM6 Feature Level does not mean that your graphics card does not support DirectX 12, it means it does not support all the features that this brings, and it is very commoner than you think because almost all Integrated graphics do not support Ray Tracing, or do not support the Shader Model, or whatever it needs.Īnd as you can see in this screenshot extracted from the Unreal Engine Documentation Page There's also a couple small cleanup fixes in here that I happened to notice while implementing/debugging.The DirectX 12 problem in Fortnite is generated due to the Lack of support for the SM6 Feature Level. The rest of the series enables the use of ID3D12DeviceFactory, which is both the mechanism for using the component-level Agility SDK, but also can be useful even when using the global redist config. This will be used in CI in a future series.

Setting the global SDK version is pretty easy, but we only do it when environment variables are set.

A new mechanism was recently built to enable components like this GL driver to opt into a redist without impacting other components in the app.

When Windows is in developer mode, the Agility SDK can be dynamically enabled for a process, as long as no D3D device has already been created.

There's two exceptions to that high-level design: exe that hosts the process exports some static data to trigger the use of the redist D3D version. Normally, the Agility SDK is something that an app opts into: specifically, the primary. but we want to be able to take advantage of new features on older versions of Windows, like many D3D customers do. Since D3D is part of Windows, normally the only way to get new D3D features is to upgrade your Windows version.

The DirectX12 Agility SDK is a fancy name for a redistributable D3D12.

Directx 12 agility sdk