Wireframe Builder

using SharpDX;
using SharpDX.Direct3D11;
using System;
using System.Collections.Generic;

namespace VoidwalkerEngine.Framework.DirectX.Rendering
{
    public static class Wireframe
    {
        public static ModelMesh GenerateWireframeSphere(Device device, Vector3 location, float radius)
        {
            float pi = (float)Math.PI;
            List<Vertex> vertices = new List<Vertex>();
            List<Vertex> segments = new List<Vertex>();
            float twoPi = 2 * pi;
            float angleStep = twoPi / (16 * (1 + (radius / 16f)));
            int iterator = 0;
            int firstIndex = 0;
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = radius * (float)Math.Sin(angle);
                float y = radius * (float)Math.Cos(angle);
                float z = 0;
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
                if (iterator != 0 && iterator % 2 == 0)
                {
                    segments.Add(new Vertex(vertices[iterator]));
                    segments.Add(new Vertex(vertices[iterator - 1]));
                }
                if (angle >= twoPi - angleStep) // Wrap around and eat that tail like a good chompy boi Jörmungandr.
                {
                    segments.Add(new Vertex(vertices[firstIndex]));
                    segments.Add(new Vertex(vertices[iterator]));
                }
                iterator++;
            }
            firstIndex = vertices.Count;
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = radius * (float)Math.Sin(angle);
                float y = 0;
                float z = radius * (float)Math.Cos(angle);
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
                if (iterator != 0 && iterator % 2 == 0)
                {
                    segments.Add(new Vertex(vertices[iterator]));
                    segments.Add(new Vertex(vertices[iterator - 1]));
                }
                if (angle >= twoPi - angleStep) // Wrap around and eat that tail like a good chompy boi Jörmungandr.
                {
                    segments.Add(new Vertex(vertices[firstIndex]));
                    segments.Add(new Vertex(vertices[iterator]));
                }
                iterator++;
            }
            firstIndex = vertices.Count;
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = 0;
                float y = radius * (float)Math.Sin(angle);
                float z = radius * (float)Math.Cos(angle);
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
                if (iterator != 0 && iterator % 2 == 0)
                {
                    segments.Add(new Vertex(vertices[iterator]));
                    segments.Add(new Vertex(vertices[iterator - 1]));
                }
                if (angle >= twoPi - angleStep) // Wrap around and eat that tail like a good chompy boi Jörmungandr.
                {
                    segments.Add(new Vertex(vertices[firstIndex]));
                    segments.Add(new Vertex(vertices[iterator]));
                }
                iterator++;
            }
            vertices.AddRange(segments);
            ModelMesh mesh = new ModelMesh(device, vertices.ToArray());
            return mesh;
        }
    }
}