Question

我有一个脚本将一个立方体分成四个相等的三角形棱柱，GameObject Panel是破碎的原始对象。每个棱镜都是通过脚本完成的，它通过将顶点和三角形分配给空白网格，原始对象被破坏。

    // 2D Points which will connect to the center to form triangles
    List<Vector2> shatterPoints = new List<Vector2> {new Vector2(-0.5f, -0.5f),
        new Vector2(-0.5f, 0.5f), new Vector2(0.5f, 0.5f), new Vector2(0.5f, -0.5f)};

    // Generate each fragment
    for (int i = 0; i < shatterPoints.Count; i++) {
        GameObject Fragment = new GameObject("Empty"); // Create game object
        Fragment.AddComponent<MeshFilter>();
        Fragment.AddComponent<MeshRenderer>();

        Vector3 point1 = shatterPoints[i]; // Grab the two edge points for this fragment
        Vector3 point2;
        if (i + 1 == shatterPoints.Count) {
            point2 = shatterPoints[0];
        } else {
            point2 = shatterPoints[i + 1];
        }

        Mesh FragMesh = new Mesh(); // Create the mesh

        FragMesh.vertices = new Vector3[] {point1 + Vector3.forward * 0.5f,
            point2 + Vector3.forward * 0.5f, new Vector3(0f, 0f, 0.5f),
            new Vector3(0f, 0f, -0.5f), point2 - Vector3.forward * 0.5f,
            point1 - Vector3.forward * 0.5f};
        FragMesh.triangles = new int[] {1,0,2,  5,4,3,  0,5,3,  3,2,0,  4,5,0,  0,1,4,  1,2,3,  3,4,1};

        // Copy important properties from the original piece to the fragment
        Fragment.GetComponent<MeshFilter>().mesh = FragMesh;
        Fragment.transform.position = Panel.transform.position;
        Fragment.transform.rotation = Panel.transform.rotation;
        Fragment.transform.localScale = Panel.transform.localScale;

        Fragment.GetComponent<Renderer>().material = Panel.GetComponent<Renderer>().material;
        FragMesh.RecalculateNormals();

        // Add force here later (and a rigidbody while you're at it)
    }

    Destroy(Panel);

以下是粉碎前后立方体的图片：

Cube before shattering

Cube after shattering and manual displacement of fragments

虽然我重新计算了脚本中每个片段的法线，但是光照似乎不正确。我是程序网格生成的新手，所以任何人都能对此有所了解吗？（没有双关语）感谢你的时间。

Answer 1

您看到的atrifacts是由于所有新创建的网格的平滑组相同。肯定的方法是为每张脸创造单独的verecies，而不是团结不会试图平滑边缘，

Unity - 脚本生成的网格具有错误的光照

1 个答案: