What's New (DirectXMath)
The DirectXMath library is based on the XNA Math C++ SIMD library version 2.04. Here we describe how DirectXMath differs from XNA Math and how DirectXMath versions differ.
Release history
| Windows 10 SDK (20348), version 2104 | DirectXMath 3.16 |
| Windows 10 May 2020 Update SDK | DirectXMath 3.14 |
| Windows 10 October 2018 Update SDK | DirectXMath 3.13 |
| Windows 10 April 2018 Update SDK Windows 10 Fall Creators Update SDK | DirectXMath 3.11 |
| Windows 10 Creators Update SDK | DirectXMath 3.10 |
| Windows 10 Anniversary SDK | DirectXMath 3.09 |
| Windows 10 SDK (November 2015) | DirectXMath 3.08 |
| Windows SDK for Windows 8.1 (Spring 2015) | DirectXMath 3.07 |
| Windows SDK for Windows 8.1 | DirectXMath 3.06 |
| Windows SDK for Windows 8 | DirectXMath 3.03 |
See DirectXMath releases for more information.
DirectXMath differences from XNA Math
Here is how the DirectXMath library primarily differs from the XNA Math library:
- DirectXMath is C++ only (namespaces, overloads, new templates, and so on).
- Requires C++11 standard library support (that is, stdint.h, and so on).
- ARM-NEON intrinsics support for the Windows RT platform.
- New color functionality (color space conversions, .NET color constants).
- Bounding volume types (a version of which was previously in the XNACollision header in the DirectX SDK Collision sample).
- No Xbox 360 version is available. The Xbox 360 XDK continues to ship XNAMath v2.x; removal of Xbox 360 specific data types and function variants.
- Reworked XMVectorPermute for improved optimization for SSE and ARM-NEON intrinsics.
- The XMMATRIX type is fully opaque. To access individual elements of XMMATRIX, use other types such as XMFLOAT4X4.
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