UnityでAsset import時にCrunch圧縮のみを強制的に解除してimportするEditor拡張

DisableCrunchCompressionPreprocessor.cs

using UnityEditor;

namespace kxn4t.gist
{
    internal class DisableCrunchCompressionPreprocessor : AssetPostprocessor
    {
        private void OnPreprocessTexture()
        {
            TextureImporter textureImporter = (TextureImporter)assetImporter;

            var settings = textureImporter.GetDefaultPlatformTextureSettings();

            if (settings.crunchedCompression)
            {
                settings.crunchedCompression = false;
                textureImporter.SetPlatformTextureSettings(settings);

                UnityEngine.Debug.Log(textureImporter.assetPath + ": Crunch compression was forced disabled!");
            }
        }
    }
}

おそらくUnity2022の場合、導入時になぜか既存のテクスチャに対しても処理が走ってしまうようなので、全部切りたいときにも使える…