导入贴图操作：处理贴图MaxSize和Format

using UnityEngine;

using System.Collections;

using UnityEditor;

public class ImportModflyTextures : AssetPostprocessor{



    private uint m_Version = 0;

    public override uint GetVersion() {return m_Version;}



    public void OnPostprocessTexture(Texture2D tex){



        TextureImporter importerTexture = (TextureImporter)assetImporter;



        if(importerTexture.DoesSourceTextureHaveAlpha() ==  true){

                if(tex.width >= tex.height )

                    importerTexture.maxTextureSize = tex.width/2;

                else importerTexture.maxTextureSize = tex.height/2;



            importerTexture.textureFormat = TextureImporterFormat.AutomaticTruecolor;

        }else{

            if(tex.width >= tex.height )

                importerTexture.maxTextureSize = tex.width;

            else importerTexture.maxTextureSize = tex.height;



            importerTexture.textureFormat = TextureImporterFormat.AutomaticCompressed;

        }

        //AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);

    }

}