microsoft/DirectXMath

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DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps

Stars: 1.8k
Forks: 262
Open beginner issues: 0
Indexed issues: 18
Avg merge: 3d 12h
Merged PRs (30d): 5

Dominant language: C++
License: MIT
Last GitHub push: Sep 3, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

Issues with including "sal.h" Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

microsoft/DirectXMath#346 · Opened Sep 15, 2026
Compiler warnings when building with GCC Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

microsoft/DirectXMath#342 · Opened Sep 1, 2026
Double-precision extension library Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/DirectXMath#328 · Opened Jul 20, 2026
Request for a way to get SimpleMath without DirectX Tool Kit Open

simplemath

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/DirectXMath#327 · 1 comment · Opened Jul 17, 2026
Project feedback Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/DirectXMath#326 · 2 comments · Opened Jul 16, 2026
Clean out AArch32 (ARMv7) ARM32 code paths Open

arm64 maintenance

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/DirectXMath#309 · Opened May 14, 2026
Consider Supporting Clang Language Extensions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

microsoft/DirectXMath#299 · Opened May 5, 2026
Support for WebAssembly SIMD Intrinsics (v128) and Rust Integration Open

conformance

Difficulty 5/5 Over a week Newbie friendliness 30/100

microsoft/DirectXMath#248 · 6 comments · Opened May 6, 2025
Proposal to add a vector projection function Open

proposal simplemath

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/DirectXMath#166 · 2 comments · Opened Jul 11, 2023
Add matrix functions for generating infinite reversed-z perspective projection matrix Open

enhancement proposal

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/DirectXMath#158 · 4 comments · 4 reactions · Opened Jan 29, 2023
DirectXMath Matrix Stack should have option to maintain inverse Open

enhancement matrixstack

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/DirectXMath#140 · Opened Oct 25, 2021
Revisit XMVector*Orthogonal Open

optimization

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/DirectXMath#73 · 1 comment · Opened Jun 14, 2018
Improve FFTUnswizzle performance Open

optimization xdsp

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/DirectXMath#42 · Opened Jan 19, 2017
Add XMVectorRound half away from zero alternative Open

proposal

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/DirectXMath#39 · 2 comments · Opened Oct 25, 2016
BoundingOrientedBox::CreateFromPoints solver suffers from numeric problems Open

bug

Difficulty 5/5 Over a week Newbie friendliness 38/100

microsoft/DirectXMath#13 · 2 comments · Opened May 24, 2016
Add XMVector[3/4]TransformTranspose(Stream) Open

proposal

Difficulty 4/5 3-5 days Newbie friendliness 38/100

microsoft/DirectXMath#11 · Opened May 24, 2016
Add XMMatrixInverseTranspose Open

proposal

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/DirectXMath#9 · 2 comments · Opened May 24, 2016

microsoft/DirectXMath

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