Unbe.Algebra

Unbe.Algebra is a vector and matrix library written in C# that uses hardware intrinsics and have a shader-like syntax, similar to SIMD or HLSL.

Usage

using Unbe.Algebra;
using static Unbe.Algebra.Maths;

namespace MyNamespace {
  public class Example {
    public void Test() {
      var vec1 = float3(2, 5, 3);
      var vec2 = float3(1, 2, 3);
      
      vec1 = normalizesafe(vec1);
      vec2 = normalize(vec2);
      
      var d = dot(vec1, vec2);
      
      var vec3 = float4(vec1.xy, vec2.z, 1);
      vec3.xyz *= d;

      var mat = Float4x4.Identity;
      mat.c3.xyz = float3(5);

      var result = mul(mat, vec3);
    }
  }
}

Project status

I am using this library for my game engine development and introducing new types / math functions as I need them. Feel free to post your requests in the issues or open up pull requests if you need something.

Why?

HLSL math library is a very well designed and have a great API which is very useful for math-heavy 3D applications like games. It is also very convenient to use a very similar syntax when porting algorithms from shader world and back.

Again, why not to use built-in C# math library?

While C# have a very performant VectorX* classes that use SIMD, they have an object-oriented API and only support float type.

Why not Unity.Mathematics then?

While it is great, but it was built for using with Burst only. The performance is not great when compiled using NET. It also has a restrictive license.

When to use?

If you are brave enough to use a library in a very early stage of development and prefer HLSL-syntax for your math or want to use vectors and matrices not only of float type.

License & Copyright

Unbe.Algebra is licensed under the MIT license. Full copyright belongs to @Arugin.