Unity3D

Question

我写了一个可视化视锥的简单代码。它工作得很好，但是当我将我的对象旋转 90 度时，视锥位于对象的“后面”，而我希望它位于右侧。

这是我获得的可视化视锥的全部代码：

[RequireComponent(typeof(MeshFilter))]
[RequireComponent(typeof(MeshRenderer))]
public class FieldOfView : MonoBehaviour
{
    private Mesh fieldOfViewMesh;
    private Vector3[] vertices;
    private Vector2[] uv;
    private int[] triangles;

    public float fieldOfView = 70.0f;
    public float fieldOfViewDistance = 7.0f;
    public int rayCount = 32;

    void Start()
    {
        fieldOfViewMesh = new Mesh();
        fieldOfViewMesh.name = "fieldOfViewMesh";
        GetComponent<MeshFilter>().mesh = fieldOfViewMesh;

        vertices = new Vector3[rayCount + 2];
        uv = new Vector2[vertices.Length];
        triangles = new int[rayCount * 3];
    }

    void LateUpdate()
    {
        fieldOfViewMesh.Clear();
        vertices[0] = transform.localPosition;

        for (int i=0; i<=rayCount; i++)
        {
            vertices[i + 1] = transform.localPosition
                + VectorFromAngle(transform.eulerAngles.y - fieldOfView / 2.0f + fieldOfView / rayCount * i).normalized * fieldOfViewDistance;

            if (i > 0 && i < rayCount)
            {
                triangles[i * 3 + 0] = 0;
                triangles[i * 3 + 1] = i - 1;
                triangles[i * 3 + 2] = i;
            }
        }

        fieldOfViewMesh.vertices = vertices;
        fieldOfViewMesh.uv = uv;
        fieldOfViewMesh.triangles = triangles;
    }

    Vector3 VectorFromAngle(float inputAngle)
    {
        return Quaternion.AngleAxis(inputAngle, transform.up) * transform.forward;
    }
}

我不确定我做错了什么。是否将度数转换为弧度（或缺少弧度）？

Answer 1

问题已解决。似乎使用 localPosition 是错误的。我将位置与 InverseTransformPoint() 一起使用，现在一切正常。

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c#

visualization

mesh