usingUnityEngine;usingSystem.Collections;usingUnityEditor;usingSystem.IO;publicclassSlipTexture:EditorWindow{publicTexture2DMainTex=null;[MenuItem("Window/分割图集")]publicstaticvoidCreateWindows(){SlipTexture sp =EditorWindow.CreateInstance<SlipTexture>();sp.title="分割图集";sp.Show(true);}voidOnGUI(){MainTex=EditorGUILayout.ObjectField("mainText",MainTex,typeof(Texture2D))asTexture2D;if(MainTex!=null){if(GUILayout.Button("导出成小图片")){string path =AssetDatabase.GetAssetPath(MainTex);TextureImporter importer =AssetImporter.GetAtPath(path)asTextureImporter;if(importer.textureType!=TextureImporterType.Sprite||importer.spriteImportMode!=SpriteImportMode.Multiple||importer.spritesheet.Length==0){Debug.LogError("当前图片不是Sprite Multiple格式 或者没有分割");return;}importer.isReadable=true;AssetDatabase.ImportAsset(path);AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);string savepath =EditorUtility.OpenFolderPanel("选择要保存的文件夹",application.dataPath,"");if(!string.IsNullOrEmpty(savepath)){foreach(SpriteMetaData metaDatain importer.spritesheet)//遍历小图集{Texture2D myimage =newTexture2D((int)metaData.rect.width,(int)metaData.rect.height);for(int y=(int)metaData.rect.y; y < metaData.rect.y+ metaData.rect.height; y++)//Y轴像素{for(int x=(int)metaData.rect.x; x < metaData.rect.x+ metaData.rect.width; x++)myimage.SetPixel(x-(int)metaData.rect.x, y -(int)metaData.rect.y,MainTex.GetPixel(x, y));}//转换纹理到EncodeToPNG兼容格式if(myimage.format!=TextureFormat.ARGB32&& myimage.format!=TextureFormat.RGB24){Texture2D newTexture =newTexture2D(myimage.width, myimage.height);newTexture.SetPixels(myimage.GetPixels(0),0);myimage= newTexture;}byte[] pngData = myimage.EncodeToPNG();//AssetDatabase.CreateAsset(myimage, rootPath + "/" + image.name + "/" + metaData.name + ".PNG");File.WriteAllBytes(savepath+"/"+ metaData.name+".PNG", pngData);}}}}}}判断在不在摄像机裁剪范围void Update() { if (renderer.IsVisibleFrom(Camera.main)) Debug.Log("Visible"); else Debug.Log("Not visible"); }static function IsRenderedFrom(renderer : Renderer, camera : Camera) : boolean{ var planes = GeometryUtility.CalculateFrustumPlanes(camera); return GeometryUtility.TestPlanesAABB(planes, renderer.bounds);}
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