DirectX Developer Blog

March 2019 - DirectX Developer Blog

New in D3D12 – DirectX Raytracing (DXR) now supports library subobjects

March 26, 2019 Mar 26, 2019 03/26/19
D3D Team
In the next update to Windows, codenamed 19H1, developers can specify DXR state subobjects inside a DXIL library. This provides an easier, flexible, and modular way of defining raytracing state, removing the need for repetitive boilerplate C++ code. This usability improvement was driven by feedback from early adopters of the API, so thanks to ...
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DirectML at GDC 2019

March 21, 2019 Mar 21, 2019 03/21/19
Cassie Hoef
Introduction Last year at GDC, we shared our excitement about the many possibilities for using machine learning in game development. If you’re unfamiliar with machine learning or neural networks, I strongly encourage you to check out our blog post from last year, which is a primer for many of the topics discussed in this post. This year...

Variable Rate Shading: a scalpel in a world of sledgehammers

March 18, 2019 Mar 18, 2019 03/18/19
Jacques van Rhyn
One of the sides in the picture below is 14% faster when rendered on the same hardware, thanks to a new graphics feature available only on DirectX 12. Can you spot a difference in rendering quality? Neither can we.  Which is why we’re very excited to announce that DirectX 12 is the first graphics API to offer broad hardware support ...