Artromskiy

using System.Numerics;
using System.Runtime.CompilerServices;

public static class Helpers
{
    private static Matrix4x4 LocalMatrix(Vector3 translation, Quaternion rotation, Vector3 scale)
    {
        // every element in matrix except of translation
        // ends up being multiplied by 2, so we multiply whole vector by sqrt2
        // to skip multiplication at the end

Artromskiy

using System;
using System.Collections.Generic;

namespace Utilities;

public static class SpanExtensions
{
    public static int Distinct<T>(this Span<T> items)
    {
        EqualityComparer<T> comparer = EqualityComparer<T>.Default;