Unity 批量修改预制体的材质贴图Generate Mip Maps勾选状态

Unity 批量修改预制体的材质贴图Generate Mip Maps勾选状态

需求

编辑器下批量模型贴图的Generate Mip Maps的勾选状态

解决

• 获取预制体的MeshRenderer上的材质球
• 获取材质球上的texture并得到texture资源路径
• 利用TextureImpoter修改贴图选项并保存

public static void ModelDisableGenerateMipMaps()
{
        FileInfo[] fs = new DirectoryInfo(prefabPath).GetFiles("*.prefab", SearchOption.AllDirectories);
        // Assets/xxx 路径形式
        string modelPath = "Assets" + prefabPath.Replace(Application.dataPath, "");
        for (int i = 0; i < fs.Length; i++)
        {
            FileInfo f = fs[i];
            string absFilePath = modelPath + f.Name;
            GameObject temp = AssetDatabase.LoadAssetAtPath<GameObject>(absFilePath);
            MeshRenderer meshRenderer = temp.GetComponent<MeshRenderer>();
            if (meshRenderer)
            {
                Material material = meshRenderer.sharedMaterial;
                string imgPath = AssetDatabase.GetAssetPath(material.mainTexture);
                // Debug.Log(imgPath);
                TextureImporter textureImporter = TextureImporter.GetAtPath(imgPath) as TextureImporter;
                if (textureImporter.mipmapEnabled)
                {
                    textureImporter.mipmapEnabled = false;
                    textureImporter.SaveAndReimport();
                    AssetDatabase.Refresh();
                }
            }
            else
            {
                Debug.LogError("不存在meshRenderer:" + f.Name);
            }
        }
}
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