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Announcing Shader Model 6.9 Retail and New D3D12 Improvements

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Amar, Serena

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Description

A Microsoft DirectX Developer Blog post by Amar and Serena announcing retail Shader Model 6.9 and related D3D12 features in Agility SDK 1.619 with DXC 1.9, plus preview items in 1.719-preview.

Retail topics include Long Vectors, 16-bit float specials, required 16/64-bit and wave ops, DXR 1.2 Opacity Micromaps HLSL and Shader Execution Reordering, revised view creation, trim notifications, larger 1D dispatch limits, and CPU timeline query resolves. Preview notes cover Fence Barriers, VPBlit 3DLUT, and an IHV extension mechanism, with driver links and a support table.

Aimed at D3D12 and HLSL developers adopting Agility SDK bits. Prior SM 6.x or DXR experience helps with the linked specs.

The free overview links Agility SDK and DXC downloads, hardware notes, deeper blogs, GitHub specs, and PIX support.

It is a single entry point for which SM 6.9 and D3D12 features are retail versus preview and which drivers expose them.