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);

    }

}

导入贴图操作：处理贴图MaxSize和Format