/// <summary>
/// 处理所有散图
/// </summary>
static void ProcessTextureDataList()
{
foreach (LinkTextureData textureData in _uniqueTextureDataList)
{
string texturePath = KAssetManager.GetTexturePath(textureData.link); //散图在Assets下的路径(External模式下是用mklink超链过来)
//string texturePath = KAssetManager.EnsureTextureInAssets(textureData.link);
TextureImporterUtil.CreateReadableTextureImporter(texturePath); //处理散图
AssetDatabase.ImportAsset(texturePath, ImportAssetOptions.ForceUpdate); //重新import一次
Texture2D texture = KAssetManager.GetTextureInAssets(textureData.link); //获取图片资源
if (textureData.IsScale9Grid == true)
{
//根据九宫格生成图片的最小尺寸
texture = Scale9GridTextureProcessor.Process(texture, textureData.top, textureData.right, textureData.bottom, textureData.left);
}
Rect rect;
Vector4 padding;
texture = TextureAlphaKicker.Kick(texture, out rect, out padding); //优化掉四周的透明像素，减少图片尺寸
texture = TextureClamper.Clamp(texture); //四周补2像素
textureData.texture = texture;
textureData.spritePadding = padding;
}
}
static void GenerateAtlas()
{
_atlas = new Texture2D(ATLAS_MAX_SIZE, ATLAS_MAX_SIZE);
Rect[] rects = _atlas.PackTextures(GetPackTextures(), 0, ATLAS_MAX_SIZE, false); //pack!
string atlasPath = KAssetManager.GetAtlasPath(_atlasName);
string alphaAtlasPath = KAssetManager.GetAlphaAtlasPath(_atlasName);
string folderPath = mg.org.FileUtility.GetFolderFromFullPath(atlasPath);
mg.org.FileUtility.EnsureDirectory(folderPath); //创建文件夹
_atlas = AtlasOptimizer.Optimize(_atlas, rects, true); //优化图集
AtlasWriter.Write(_atlas, atlasPath); //保存图集
LogAtlasSize(_atlas, _atlasName);
// 暂时不采用分开的纹理格式， 删除ALPHA贴图
AssetDatabase.DeleteAsset(alphaAtlasPath);
bool isTurecolor = AtlasQualitySetting.Contains(_atlasName);
//if(isTurecolor)
//{
// AssetDatabase.DeleteAsset(alphaAtlasPath);
//}
//else
//{
// //EtcGeneratorWrapper.Execute(atlasPath, _isHighQuality);
// ImageChannelSpliterWrapper.Execute(atlasPath, _isHighQuality);
// AssetDatabase.ImportAsset(alphaAtlasPath, ImportAssetOptions.ForceUpdate);
// TextureImporterUtil.CreateEtcAlphaChannelImporter(alphaAtlasPath);
// AssetDatabase.ImportAsset(alphaAtlasPath, ImportAssetOptions.ForceUpdate);
//}
try
{
AssetDatabase.ImportAsset(atlasPath, ImportAssetOptions.ForceUpdate);
}
catch (System.Exception e)
{
Debug.Log("ImportAssetError:" + atlasPath);
}
isTurecolor = false; //都用压缩格式
TextureImporterFormat format = isTurecolor ? TextureImporterFormat.ARGB32 : TextureImporterFormat.AutomaticCompressed;
TextureImporterUtil.CreateMultipleSpriteImporter(atlasPath, rects, GetPackTextureNames(), GetSpriteBorders(), _atlas.width, _atlas.height, format, ATLAS_MAX_SIZE);
AssetDatabase.ImportAsset(atlasPath, ImportAssetOptions.ForceUpdate);
//记录所有图片的边距数据
AtlasSpritePaddingHelper.WriteSpritePaddingRecord(_uniqueTextureDataList, KAssetManager.GetAtlasSpritePaddingRecordPath(_atlasName));
//暂时不采用分开的纹理格式
//采用替换内置材质的方式
//EtcMaterialCreator.CreateWithoutAlpha(EtcMaterialCreator.PSD4UGUI_ONE_TEX_SHADER, atlasPath);
}
