Unity --- 如何简单的判断图片是否含有 alpha channel

1 var texImporter = AssetImporter.GetAtPath(assetPath) as TextureImporter;
2 if (texImporter.DoesSourceTextureHaveAlpha())
3 {
4     Debug.Log("textures source image don't have alpha channel ");
5 }
6 else
7 {
8     Debug.Log("textures source image have alpha channel ");
9 }

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