Extract Materials from fbx via script

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hey guys,

I'm working on a modelimporter right now, and it works quite well. I just encountered the problem now, that I can't seem to find a option to extract materials from script.

alt text

There is the 'Extract Materials ...' Button, but even in the https://docs.unity3d.com/ScriptReference/ModelImporter.html documentation there is no point about the Extraction of materials, but there is for textures

Anyone in here got an idea on how to do it from script?

Answer 1

Answer by qVadro · Apr 10, 2019 at 09:48 AM

bump! need it too

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Answer 2

Hey guys,

I had the same issue and just looked up the UnityEditor.dll what they are exactly doing. I found out that the method "ExtractMaterialsFromAsset" is part of the PrefabUtlity, but not public accessible. I just copied and customized their code and it works fine fore me.

This method is part of my custom AssetImporter Script, but i guess you can put it in any EditorScript

 using System.Collections.Generic;
 using System.Linq;
 using UnityEditor;
 using UnityEngine;

 public static void ExtractMaterials(string assetPath, string destinationPath)
 {
     HashSet<string> hashSet = new HashSet<string>();
     IEnumerable<Object> enumerable = from x in AssetDatabase.LoadAllAssetsAtPath(assetPath)
                                         where x.GetType() == typeof(Material)
                                         select x;
     foreach (Object item in enumerable)
     {
         string path = System.IO.Path.Combine(destinationPath, item.name) + ".mat";
         path = AssetDatabase.GenerateUniqueAssetPath(path);
         string value = AssetDatabase.ExtractAsset(item, path);
         if (string.IsNullOrEmpty(value))
         {
             hashSet.Add(assetPath);
         }
     }
 
     foreach (string item2 in hashSet)
     {
         AssetDatabase.WriteImportSettingsIfDirty(item2);
         AssetDatabase.ImportAsset(item2, ImportAssetOptions.ForceUpdate);
     }
 }

Here is how you can call the Function:

 CustomModelImporter.ExtractMaterials("Assets/MyGame.fbx", "Assets");

Kind regards

Answer 3

Answer by real2u · Jul 12, 2019 at 11:51 AM

Bump! Same issue here, couldn´t fidn a way to reach it via script also

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Extract Materials from fbx via script

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