Unity/C#：程序网格的程序纹理

Question

我想在 Unity/C# 中生成网格和纹理程序。但是，我对自定义网格的所有尝试仅显示第一个纹素。我试图尽可能地简化问题并提出了以下示例代码，它绘制了一个白色方块而不是 "polish flag".

using UnityEngine;
using System.Collections;

public class Test : MonoBehaviour {

    [SerializeField] Material unlitMaterial;

    void Start () {
        Mesh mesh = new Mesh();
        mesh.vertices = new Vector3[4] { Vector3.zero, new Vector3 (1, 0, 0), new Vector3 (1, 0, 1), new Vector3 (0, 0, 1) };
        mesh.triangles = new int[6] {1, 0, 3, 2, 1, 3 } ; 
        mesh.RecalculateNormals();

        Texture2D texture = new Texture2D (2, 2);
        texture.SetPixels (new Color[4] {Color.white, Color.white, Color.red, Color.red});
        texture.filterMode = FilterMode.Point;
        texture.Apply();

        GameObject gameObject = new GameObject ();
        MeshRenderer meshRenderer = gameObject.AddComponent<MeshRenderer> ();
        if (unlitMaterial != null)
            meshRenderer.material = unlitMaterial;
        meshRenderer.material.mainTexture = texture;
        gameObject.AddComponent<MeshFilter> ().mesh = mesh;
    }
}

（我尝试了不同的材料，例如unlit/texture没有效果）

非常感谢您的帮助;-)

Answer 1

我认为您缺少设置 UV。检查这个：Unity3D answers link

since he only has 4 verts, just handset them to (0,0) (0,1) (1,1) and (1,0): uvs[0]=new Vector2(0,0); ....

然后这样设置：mesh.uv = uvs;

Unity/C#：程序网格的程序纹理

Unity/C#: procedural texture for procedural mesh

procedural-generation

unity3d