AssetPostprocessor.OnPreprocessTexture()

Description

将此函数添加到一个子类中，以在纹理导入器运行之前获取通知。

This lets you set up default values for the import settings.

Use this callback if you want to change the compression format of the texture.

using UnityEngine;
using UnityEditor;

// Automatically convert any texture file with "_bumpmap"
// in its file name into a normal map.

class MyTexturePostprocessor : AssetPostprocessor
{
    void OnPreprocessTexture()
    {
        if (assetPath.Contains("_bumpmap"))
        {
            TextureImporter textureImporter  = (TextureImporter)assetImporter;
            textureImporter.convertToNormalmap = true;
        }
    }
}