C#之绘制三角形

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ShaderDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            Vector3 t1 = Vector3.Zero();
            Vector3 t2 = new Vector3(0, 10, 0);
            Vector3 t3 = new Vector3(15, 5, 0);



            Vector3 t11 = new Vector3(-5, -5, 0);
            Vector3 t12 = new Vector3(5, -5, 0);
            Vector3 t13 = new Vector3(5, 5, 0);

            List<Vector3> vec3 = new List<Vector3>();
            vec3.Add(t1);
            vec3.Add(t2);
            vec3.Add(t3);
            vec3.Add(t11);
            vec3.Add(t12);
            vec3.Add(t13);


            while (true)
            {
                Console.Clear();//清楚画面
                for (int i = 0; i < vec3.Count/3; i++)
                {
                    DrawTri(vec3[i * 3], vec3[i * 3 + 1], vec3[i * 3 + 2], i % 2 =