Custom Icon on ScriptableObject

Hi there @arkadsgames. You can do it without the Gizmos folder. Just select the ScriptableObject script (not the ScriptableObject asset!) and select its icon in the Inspector. That will change that script's icon as well as all icons of respective ScriptableObject assets!

Additionally, you can visit this thread for more info, it has lots of gold in it: https://forum.unity.com/threads/custom-scriptableobject-icons-thumbnail.256246/

Hi, i'm working on a cards game where there are different "roles". Every scriptable object needs to have a custom image. How do i do it?

There is a new API for this in 2021.2 that might do what you are looking for. It even tells you how to make it persistent across script reloads ;)

https://docs.unity.cn/2021.2/Documentation/ScriptReference/EditorGUIUtility.SetIconForObject.html

Edit: Okay so it turns out this is really really jank. As far as I can tell, Unity doesn't want you to instance these icons. On compile/load, all of the assets will be set to the same icon, even if you properly set each one individually. You have to inspect them by clicking on them individually to get them to update to their true icons. If anyone has a solution to this please let me know :/

Hi.
It's possible!
Short history:
I downloaded and explore this project: https://blog.unity.com/technology/isometric-2d-environments-with-tilemap
I noticed that in this project, icons from scriptable objects are displayed in the inspector:
After, i found some editor script, and edited him for my project.
I don't understand how it works, but it works. =)

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEditor;
 using System;
 using System.Reflection;
 using Object = UnityEngine.Object;
 
 [CustomEditor(typeof(item_so),true)]
 [CanEditMultipleObjects]
 public class ItemSOEditor : Editor
 {
     private item_so item { get { return (target as item_so); } }
 
     public override Texture2D RenderStaticPreview(string assetPath,Object[] subAssets,int width,int height)
     {
         if(item.standart_item_struct.item_icon!=null)
         {
             Type t = GetType("UnityEditor.SpriteUtility");
             if(t!=null)
             {
                 MethodInfo method = t.GetMethod("RenderStaticPreview",new Type[] { typeof(Sprite),typeof(Color),typeof(int),typeof(int) });
                 if(method!=null)
                 {
                     object ret = method.Invoke("RenderStaticPreview",new object[] { item.standart_item_struct.item_icon,Color.white,width,height });
                     if(ret is Texture2D)
                         return ret as Texture2D;
                 }
             }
         }
         return base.RenderStaticPreview(assetPath,subAssets,width,height);
     }
 
     private static Type GetType(string TypeName)
     {
         var type = Type.GetType(TypeName);
         if(type!=null)
             return type;
 
         if(TypeName.Contains("."))
         {
             var assemblyName = TypeName.Substring(0,TypeName.IndexOf('.'));
             var assembly = Assembly.Load(assemblyName);
             if(assembly==null)
                 return null;
             type=assembly.GetType(TypeName);
             if(type!=null)
                 return type;
         }
 
         var currentAssembly = Assembly.GetExecutingAssembly();
         var referencedAssemblies = currentAssembly.GetReferencedAssemblies();
         foreach(var assemblyName in referencedAssemblies)
         {
             var assembly = Assembly.Load(assemblyName);
             if(assembly!=null)
             {
                 type=assembly.GetType(TypeName);
                 if(type!=null)
                     return type;
             }
         }
         return null;
     }
 }