Performance Increase

This is an update to my infinite roads and terrain project. 

Using the Unity Job system Bursts, performance has been drastically increased.

This is a code snippet of the new method of finding the distance to a road spline from a vertex on the terrain mesh:

[BurstCompile]
struct GetNearestJob : IJob
{
    public NativeArray<float3> vertices;
    
    [NativeDisableContainerSafetyRestriction]
    public NativeArray<NativeSpline> splines;
    
    public float distanceCutoff;
    
    public Matrix4x4 ChunkMatrix4X4;
    public void Execute()
    {
        // Get the inverse of the ChunkMatrix4X4 to convert vertices back to local space later
        Matrix4x4 inverseMatrix = ChunkMatrix4X4.inverse;
        
        for (int i = 0; i < vertices.Length; i++)
        {
            float closestDistance = float.MaxValue;
            float3 closestPoint = new();
            // Convert the vertex to world space
            float3 worldSpaceVertex = ChunkMatrix4X4.MultiplyPoint3x4(vertices[i]);
            for (int j = 0; j < splines.Length; j++)
            {
                float tempClosestDistance = SplineUtility.GetNearestPoint(splines[j], worldSpaceVertex, out float3 tempClosestPoint, out float _);
                if (tempClosestDistance < closestDistance)
                {
                    closestPoint = tempClosestPoint;
                    closestDistance = tempClosestDistance;
                }
                if (closestDistance < distanceCutoff)
                {
                    float normalizedDistance = Mathf.Clamp01(closestDistance / distanceCutoff);
                    float outValue = 1f / (1f + Mathf.Exp(10f * (normalizedDistance - 0.5f)));
                    
                    worldSpaceVertex.y = Mathf.Lerp(worldSpaceVertex.y, closestPoint.y, outValue);
                    // Convert modified vertex back to localSpace
                    float3 localSpaceVertex = inverseMatrix.MultiplyPoint3x4(worldSpaceVertex);
                    
                    vertices[i] = localSpaceVertex;
                }
            }
        }
    }
}