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Unity-UV展开工具

news 2025/6/28 5:59:30

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;public class unfold : EditorWindow
{[MenuItem("Gq_Tools/展开")]public static void ShowWin(){EditorWindow.CreateInstance<unfold>().Show();}private void OnGUI(){GUILayout.Space(10);GUILayout.BeginHorizontal("box");GUILayout.Space(10);if (GUILayout.Button("Planar-X 展开"))//UI上画一个按钮{//MonoBehaviour.print("do");Unfold0("X");}if (GUILayout.Button("Planar-Y 展开"))//UI上画一个按钮{//MonoBehaviour.print("do");Unfold0("Y");}if (GUILayout.Button("Planar-Z 展开"))//UI上画一个按钮{//MonoBehaviour.print("do");Unfold0("Z");}GUILayout.EndHorizontal();GUILayout.Space(10);GUILayout.BeginHorizontal("box");if (GUILayout.Button("立方展开"))//UI上画一个按钮{//MonoBehaviour.print("do");Unfold1();}GUILayout.EndHorizontal();GUILayout.Space(10);GUILayout.BeginHorizontal("box");if (GUILayout.Button("通过光图UV展开"))//UI上画一个按钮  {//MonoBehaviour.print("do");Unfold2();}GUILayout.EndHorizontal();}//Planar Unfoldvoid Unfold0(string inStr){var objs = Selection.objects;if (inStr == "X"){foreach (var obj in objs)//for每个选中的物体{var go = obj as GameObject;Mesh mesh = go.GetComponent<MeshFilter>().sharedMesh;Vector3[] vertices = mesh.vertices;Vector2[] uvs = new Vector2[vertices.Length];//Planar Unfoldfor (int i = 0; i < uvs.Length; i++){uvs[i] = new Vector2(vertices[i].y, vertices[i].z);}mesh.uv = uvs;}}if (inStr == "Y"){foreach (var obj in objs)//for每个选中的物体  {var go = obj as GameObject;Mesh mesh = go.GetComponent<MeshFilter>().sharedMesh;Vector3[] vertices = mesh.vertices;Vector2[] uvs = new Vector2[vertices.Length];//Planar Unfoldfor (int i = 0; i < uvs.Length; i++){uvs[i] = new Vector2(vertices[i].x, vertices[i].z);}mesh.uv = uvs;}}if (inStr == "Z"){foreach (var obj in objs)//for每个选中的物体{var go = obj as GameObject;Mesh mesh = go.GetComponent<MeshFilter>().sharedMesh;Vector3[] vertices = mesh.vertices;Vector2[] uvs = new Vector2[vertices.Length];//Planar Unfoldfor (int i = 0; i < uvs.Length; i++){uvs[i] = new Vector2(vertices[i].x, vertices[i].y);}mesh.uv = uvs;}}}//Cubic Unfoldvoid Unfold1(){var objs = Selection.objects;foreach (var obj in objs)//for每个选中的物体  {var go = obj as GameObject;Mesh mesh = go.GetComponent<MeshFilter>().sharedMesh;Vector3[] vertices = mesh.vertices;Vector2[] uvs = new Vector2[vertices.Length];Vector3[] normals = mesh.normals;//Cubic Unfoldfor (int i = 0; i < normals.Length; i++){//X-Planeif (Mathf.Abs(normals[i].x) > Mathf.Abs(normals[i].y) && Mathf.Abs(normals[i].x) > Mathf.Abs(normals[i].z)){uvs[i] = new Vector2(vertices[i].y, vertices[i].z);}//Y-Planeif (Mathf.Abs(normals[i].y) > Mathf.Abs(normals[i].x) && Mathf.Abs(normals[i].y) > Mathf.Abs(normals[i].z)){uvs[i] = new Vector2(vertices[i].x, vertices[i].z);}//Z-Planeif (Mathf.Abs(normals[i].z) > Mathf.Abs(normals[i].x) && Mathf.Abs(normals[i].z) > Mathf.Abs(normals[i].y)){uvs[i] = new Vector2(vertices[i].x, vertices[i].y);}}mesh.uv = uvs; }}//use lightmap UV  void Unfold2(){var objs = Selection.objects;foreach (var obj in objs)//对于每个选中的物体 // {var go = obj as GameObject;Mesh mesh = go.GetComponent<MeshFilter>().sharedMesh;mesh.uv = mesh.uv2;}}
}