vertex info debugging script

 

VertexInfo.cs

using UnityEngine; [ExecuteAlways] [RequireComponent(typeof(MeshFilter))] public class VertexInfo : MonoBehaviour {     [Header("Vertex Selection Settings")]     [SerializeField] private float selectionRadius = 5.0f;     [SerializeField] private Color highlightColor = Color.red;     private Mesh mesh;     private int selectedVertexIndex = -1;     private Vector3 selectedVertexWorldPos;     private void Awake()     {         if (mesh == null)         {             MeshFilter mf = GetComponent<MeshFilter>();             mesh = mf != null ? mf.sharedMesh : null;         }     }     public void FindVertex(Vector2 mousePosition, Camera sceneCamera)     {         if (mesh == null || sceneCamera == null)             return;         selectedVertexIndex = -1;         float minDistance = selectionRadius;         for (int i = 0; i < mesh.vertexCount; i++)         {             Vector3 worldPos = transform.TransformPoint(mesh.vertices[i]);             Vector3 screenPos = sceneCamera.WorldToScreenPoint(worldPos);             // Scene 뷰 y축 뒤집힘 보정             screenPos.y = Screen.height - screenPos.y;             float dist = Vector2.Distance(mousePosition, screenPos);             if (dist < minDistance)             {                 minDistance = dist;                 selectedVertexIndex = i;                 selectedVertexWorldPos = worldPos;             }         }         if (selectedVertexIndex >= 0)         {             Debug.Log($"[VertexInfo] Found Vertex #{selectedVertexIndex}");             Debug.Log($"Position: {mesh.vertices[selectedVertexIndex]}");             Debug.Log($"UV: {mesh.uv[selectedVertexIndex]}");         }     }     private void OnDrawGizmos()     {         if (selectedVertexIndex >= 0)         {             Gizmos.color = highlightColor;             Gizmos.DrawSphere(selectedVertexWorldPos, 0.05f); #if UNITY_EDITOR             UnityEditor.Handles.Label(selectedVertexWorldPos, $"#{selectedVertexIndex}"); #endif         }     } }

 

VertexInfoEditor.cs

using UnityEngine; using UnityEditor; [CustomEditor(typeof(VertexInfo))] public class VertexInfoEditor : Editor {     private void OnSceneGUI()     {         VertexInfo vertexInfo = (VertexInfo)target;         Event e = Event.current;         if (e.type == EventType.KeyDown && e.character == 'f')         {             Camera sceneCamera = SceneView.lastActiveSceneView.camera;             Vector2 mousePos = e.mousePosition;             // Scene view mousePos는 bottom-left origin이지만             // Screen space는 top-left origin이므로 변환 필요             mousePos.y = Screen.height - mousePos.y;             vertexInfo.FindVertex(mousePos, sceneCamera);             e.Use(); // 이벤트 소모         }     } }

 

기능 설명
selectionRadius : 마우스 근처 몇 픽셀 이내를 잡을지 조정 가능
highlightColor : 선택된 버텍스의 색상을 설정 가능
선택한 버텍스 인덱스 Label 표시 : Scene 뷰에 직접 인덱스 번호 보여줌
null-check와 컴포넌트 초기화 : 에러 방지
Event.Use() 호출 키 입력 이벤트를 소모해서 중복처리 방지