public static void FindRGBA()
{
TextureImporterFormat[] formatConfig = new TextureImporterFormat[]
{
TextureImporterFormat.RGBA32,
TextureImporterFormat.RGB24,
TextureImporterFormat.ARGB32,
};
HashSet <TextureImporterFormat> filter = new HashSet <TextureImporterFormat>(formatConfig);
foreach (string atlasFile in EditorResourcePaths.GetAllAtlasFiles())
{
if (atlasFile.EndsWith(LOW_ATLAS_SUFFIX))
{
continue;
}
SpriteAtlas spriteAtlas = AssetDatabase.LoadAssetAtPath <SpriteAtlas>(atlasFile);
for (int i = 2; i < PLATFORMS.Length; i++)
{
TextureImporterPlatformSettings patformSettings = SpriteAtlasExtensions.GetPlatformSettings(spriteAtlas, PLATFORMS[i]);
if (patformSettings.overridden && filter.Contains(patformSettings.format))
{
DebugUtil.LogWarning("高清图集 : " + atlasFile);
break;
}
}
}
DebugUtil.Log("FindRGBA Done!");
}
public static void SetAtlasMaxSize()
{
MethodInfo getPreviewTexturesMI = typeof(SpriteAtlasExtensions).GetMethod("GetPreviewTextures", BindingFlags.Static | BindingFlags.NonPublic);
foreach (string atlasFile in EditorResourcePaths.GetAllAtlasFiles())
{
if (atlasFile.EndsWith(LOW_ATLAS_SUFFIX))
{
continue;
}
SpriteAtlas spriteAtlas = AssetDatabase.LoadAssetAtPath <SpriteAtlas>(atlasFile);
List <Sprite> sprites = GetSpritesByAtlas(spriteAtlas);
// 统计散图面积之和
int total = 0;
int minSize = 128;
foreach (Sprite sprite in sprites)
{
Rect rect = sprite.textureRect;
int width = Mathf.CeilToInt(rect.width);
int height = Mathf.CeilToInt(rect.height);
minSize = Mathf.Max(minSize, width, height);
total += width * height;
}
// 估算maxTextureSize值
float guessArea = EditorCommonUtils.ToLargerPOT(total, 4);
int guessSize = Mathf.RoundToInt(Mathf.Sqrt(guessArea));
// 如果填充率太低，将估值尺寸减半
if (total <= guessArea * 0.625f)
{
guessSize /= 2;
}
// 用估值尺寸尝试打图集
guessSize = Mathf.Max(guessSize, Mathf.RoundToInt(EditorCommonUtils.ToLargerPOT(minSize, 2)));
foreach (string platform in PLATFORMS)
{
TextureImporterPlatformSettings patformSettings = SpriteAtlasExtensions.GetPlatformSettings(spriteAtlas, platform);
if (patformSettings.maxTextureSize != guessSize)
{
patformSettings.maxTextureSize = guessSize;
SpriteAtlasExtensions.SetPlatformSettings(spriteAtlas, patformSettings);
}
}
SpriteAtlasUtility.PackAtlases(new SpriteAtlas[] { spriteAtlas }, EditorUserBuildSettings.activeBuildTarget);
// 计算图集的实际面积
Texture2D[] atlasTextures = (Texture2D[])getPreviewTexturesMI.Invoke(null, new object[] { spriteAtlas });
int area = 0;
for (int i = 0; i < atlasTextures.Length; i++)
{
area += atlasTextures[i].width * atlasTextures[i].height;
}
// 如果估值尺寸效果一般，将其翻倍
if (area > guessSize * guessSize * 2.5f)
{
foreach (string platform in PLATFORMS)
{
TextureImporterPlatformSettings patformSettings = SpriteAtlasExtensions.GetPlatformSettings(spriteAtlas, platform);
patformSettings.maxTextureSize = Mathf.Min(guessSize * 2, MAX_TEXTURE_SIZE);
SpriteAtlasExtensions.SetPlatformSettings(spriteAtlas, patformSettings);
}
SpriteAtlasUtility.PackAtlases(new SpriteAtlas[] { spriteAtlas }, EditorUserBuildSettings.activeBuildTarget);
}
else if (area > guessSize * guessSize * 1.5f && area <= guessSize * guessSize * 2)
{
TextureImporterPlatformSettings patformSettings = SpriteAtlasExtensions.GetPlatformSettings(spriteAtlas, "Android");
patformSettings.maxTextureSize = Mathf.Min(guessSize * 2, MAX_TEXTURE_SIZE);
SpriteAtlasExtensions.SetPlatformSettings(spriteAtlas, patformSettings);
SpriteAtlasUtility.PackAtlases(new SpriteAtlas[] { spriteAtlas }, EditorUserBuildSettings.activeBuildTarget);
}
SpriteAtlas lowSpriteAtlas = AssetDatabase.LoadAssetAtPath <SpriteAtlas>(atlasFile.Replace(EditorResourcePaths.ATLAS_SUFFIX, LOW_ATLAS_SUFFIX));
foreach (string platform in PLATFORMS)
{
TextureImporterPlatformSettings patformSettings = SpriteAtlasExtensions.GetPlatformSettings(spriteAtlas, platform);
TextureImporterPlatformSettings lowPatformSettings = SpriteAtlasExtensions.GetPlatformSettings(lowSpriteAtlas, platform);
lowPatformSettings.maxTextureSize = patformSettings.maxTextureSize;
SpriteAtlasExtensions.SetPlatformSettings(lowSpriteAtlas, lowPatformSettings);
}
}
DebugUtil.Log("SetAtlasMaxSize Done!");
}