10/5 procedural Mesh

1. Quad 그리기

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
[RequireComponent(typeof(MeshFilter))]
public class proceduralMesh : MonoBehaviour
{
    Mesh mesh;
    Material material;
 
    Vector3[] vertices;
    int[] triangles;
 
 
    private void Awake()
    {
        mesh = GetComponent<MeshFilter>().mesh;
        material = GetComponent<Renderer>().material;
    }
    // Start is called before the first frame update
    void Start()
    {
        meshData();
        createObj();
    }
 
    void meshData()
    {
        //vertices, triangles베열에 값 넣기
        //vertices에서는 점의 위치를 설정
        vertices = new Vector3[] { new Vector3(0, 0, 0), new Vector3(0, 0, 1), new Vector3(1, 0, 0), new Vector3(1,0,1) };
        //triangles에서는 vertices를 어떻게 연결할지 정하기 
        triangles = new int[] { 0, 1, 2, 2, 1, 3 };
    }
 
    //obj 그리기 
    void createObj()
    {
        mesh.vertices = vertices;
        mesh.triangles = triangles;
        material.color = Color.green;
 
        //법선벡터 계산(라이팅)
        mesh.RecalculateNormals();
    }
 
    }