SIMD is an acronym that stand for single-instruction, multiple-data instructions accelerated by the hardware that allow performing the same instruction with a single opcode on multiple data input.
In .NET those instructions are locates in the System.Numerics namespace. Let's start with checking the types that are available at our disposal:
- 👉
Vector2,Vector3,Vector4- can represent accordingly 2,3 or 4 float values. - 👉
Matrix3x2,Matrix4x4- can represent matrices 3x2 and 4x4 - 👉
Plane- can represent a 3d plane object - 👉
Quaternion- for rotations in 3d space - 👉
Vector<T>- generic type that allows vector of specific type
Docs: 📑 https://learn.microsoft.com/en-us/dotnet/standard/simd
using System.Numerics;
// 3d vectors
var v1 = new Vector3(0.1f, 0.2f, 0.3f);
var v2 = new Vector3(1.1f, 2.2f, 3.3f);
var result = v1 + v2;
// plane
var plane = new Plane(0.0f, 1.0f, 0.0f, 10.0f);
// Identity 4x4 matrix
var identity = Matrix4x4.Identity;
// Vector of values of type int
Vector<int> v = new Vector<int>(new[] {1,2,3,4,5,6,7,8});