- unity 可以通过修改图片格式来减少包体大小,不同平台对不用格式图片的加载速度,也有差别.在开发WebGl是因为没有开发好的工具,要对图片进行一个处理,自己写了一个脚本工具类,来进行图片适配WebGl端.
- 最后的效果,用过选择文件夹来处理文件夹下的图片,不用人工一张一张设置了.
代码:
先创建一个TextureImportChanging类,继承EditorWindow类.
主要方法:先设置一个设置图片格式的界面,
using UnityEngine;
using UnityEditor;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using UnityEditor.Hardware;
public class TextureImportChanging : EditorWindow
{
enum MaxSize
{
Size_32 = 32,
Size_64 = 64,
Size_128 = 128,
Size_256 = 256,
Size_512 = 512,
Size_1024 = 1024,
Size_2048 = 2048,
Size_4096 = 4096,
Size_8192 = 8192,
}
private string platformName
{
get
{
#if UNITY_WEBGL
return "WebGL";
#else
return "Default";
#endif
}
}
private static TextureImporterFormat textureImporterFormat
{
get
{
#if UNITY_WEBGL
return TextureImporterFormat.DXT5Crunched;
#else
return TextureImporterFormat.Automatic;
#endif
}
}
// ----------------------------------------------------------------------------
TextureImporterType textureType = TextureImporterType.Sprite;
static TextureImporterFormat textureFormat = textureImporterFormat;
MaxSize textureSize = MaxSize.Size_1024;
TextureImporterCompression textureCompression = TextureImporterCompression.Uncompressed;
static TextureWrapMode wrapMode = TextureWrapMode.Repeat;
static FilterMode filterMode = FilterMode.Bilinear;
bool ifAllowsAlphaSplitting = true;
static bool ifMipmapEnabled = false;
/// <summary>
/// 是否重置图片属性
/// </summary>
static bool textureModifier = true;
/// <summary>
/// 是否改变图片类型
/// </summary>
bool isChangeTextureType = false;
/// <summary>
/// 是否固定的改变图片格式
/// </summary>
static bool isChangeTexturFormat = true;
// float secs = 10.0f;
// double startVal = 0;
// float progress = 0f;
static TextureImportChanging window;
[@MenuItem("资源管理/设置图片格式")]
private static void Init()
{
Rect wr = new Rect(0, 0, 400, 400);
window = (TextureImportChanging)EditorWindow.GetWindowWithRect(typeof(TextureImportChanging), wr, false, "图片格式设置");
window.Show();
}
private void OnGUI()
{
EditorGUILayout.Space();
EditorGUILayout.HelpBox("设置选中图片或选中路径下的图片属性", MessageType.Info);
EditorGUILayout.Space();
isChangeTextureType = EditorGUILayout.Toggle("是否改变图片类型:", isChangeTextureType);
if (isChangeTextureType)
textureType = (TextureImporterType)EditorGUILayout.EnumPopup("类型:", textureType);
EditorGUILayout.Space();
isChangeTexturFormat = EditorGUILayout.Toggle("是否固定改变图片格式:", isChangeTexturFormat);
if (isChangeTexturFormat)
textureFormat = (TextureImporterFormat)EditorGUILayout.EnumPopup("格式:", textureFormat);
EditorGUILayout.Space();
textureCompression = (TextureImporterCompression)EditorGUILayout.EnumPopup("压缩:", textureCompression);
ifAllowsAlphaSplitting = EditorGUILayout.Toggle("是否允许透明分离:", ifAllowsAlphaSplitting);
ifMipmapEnabled = EditorGUILayout.Toggle("是否允许Mipmap:", ifMipmapEnabled);
textureModifier = EditorGUILayout.Toggle("是否重置图片属性:", textureModifier);
if (!textureModifier)
{
EditorGUILayout.Space();
EditorGUILayout.HelpBox("如果有导入自动设置图片脚本,下面方法未必执行", MessageType.Info);
EditorGUILayout.Space();
textureSize = (MaxSize)EditorGUILayout.EnumPopup("尺寸:", textureSize);
wrapMode = (TextureWrapMode)EditorGUILayout.EnumPopup("wrapMode:", wrapMode);
filterMode = (FilterMode)EditorGUILayout.EnumPopup("filterMode:", filterMode);
}
EditorGUILayout.Space();
if (GUILayout.Button("设置"))
{
TextureImporterPlatformSettings t = new TextureImporterPlatformSettings();
t.allowsAlphaSplitting = ifAllowsAlphaSplitting;
t.format = textureFormat;
t.maxTextureSize = (int)textureSize;
t.textureCompression = textureCompression;
SelectedChangeTextureFormatSettings(t, textureType, GetSelectedTextures());
}
//if (GUILayout.Button("一键设置(Textures目录)")) {
// TextureImporterPlatformSettings t = new TextureImporterPlatformSettings();
// t.allowsAlphaSplitting = ifAllowsAlphaSplitting;
// t.format = textureFormat;
// t.maxTextureSize = (int)textureSize;
// t.textureCompression = textureCompression;
// SelectedChangeTextureFormatSettings(t, textureType,GetTexture());
//}
}
/// <summary>
/// 开始修改图片
/// </summary>
/// <param name="_t"></param>
/// <param name="_type"></param>
/// <param name="arr"></param>
void SelectedChangeTextureFormatSettings(TextureImporterPlatformSettings _t, TextureImporterType _type, Object[] arr)
{
Object[] textures = arr;
if (window == null)
Init();
if (textures != null)
{
if (textures.Length < 1)
{
window.ShowNotification(new GUIContent("找不到图片!"));
return;
}
}
else
{
window.ShowNotification(new GUIContent("请选中图片或路径!"));
return;
}
Selection.objects = new Object[0];
int i = 0;
foreach (Texture2D texture in textures)
{
string path = AssetDatabase.GetAssetPath(texture);
//dds格式的图片不在本次修改范围内
if (path.Substring(path.Length - 3, 3) == "dds")
continue;
string[] pathArr = path.Split('/');
TextureImporter textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
// Debug.Log(textureImporter.DoesSourceTextureHaveAlpha());
if (isChangeTextureType)
textureImporter.textureType = _type;
textureImporter.allowAlphaSplitting = _t.allowsAlphaSplitting;
textureImporter.mipmapEnabled = ifMipmapEnabled;
textureImporter.borderMipmap = ifMipmapEnabled;
if (!textureModifier)
{
textureImporter.maxTextureSize = _t.maxTextureSize;
textureImporter.wrapMode = wrapMode;
textureImporter.filterMode = filterMode;
textureImporter.spritePackingTag = pathArr[pathArr.Length - 2];
TextureImporterPlatformSettings platFormat = new TextureImporterPlatformSettings
{
name = platformName,
overridden = true,
format = GetFormat(textureImporter),
maxTextureSize = _t.maxTextureSize
};
textureImporter.SetPlatformTextureSettings(platFormat);
}
ShowProgress((float)i / (float)textures.Length, textures.Length, i);
i++;
AssetDatabase.ImportAsset(path);
}
//刷新
AssetDatabase.Refresh();
EditorUtility.ClearProgressBar();
textures = null;
}
/// <summary>
/// 设置修改进度
/// </summary>
/// <param name="val"></param>
/// <param name="total"></param>
/// <param name="cur"></param>
public static void ShowProgress(float val, int total, int cur)
{
EditorUtility.DisplayProgressBar("设置图片中...", string.Format("请稍等({0}/{1}) ", cur, total), val);
}
//获取选中文件夹下所有的Texture2D图片(包含文件夹下的文件夹)
static Object[] GetSelectedTextures()
{
return Selection.GetFiltered(typeof(Texture2D), SelectionMode.DeepAssets);
}
/// <summary>
/// 判断是否含有透明通道,动态返回
/// TextureImporterFormat.DXT5Crunched或TextureImporterFormat.DXT1Crunched;
/// 有的图片不包含上诉两种图片格式（可以添加個判斷，現在沒有添加）
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
static TextureImporterFormat GetFormat(TextureImporter item)
{
if (isChangeTexturFormat)
return textureFormat;
else
{
return item.DoesSourceTextureHaveAlpha()? TextureImporterFormat.DXT5Crunched: TextureImporterFormat.DXT1Crunched;
}
}
void OnInspectorUpdate()
{
Repaint();
}
}
第一次写这种工具,也是在别人的基础上修改的,有大佬可以指出里面逻辑不对的地方