How do I Create a sprite preview in inspector?

I'm trying to load my sprite into the inspector, to make an editor extension. The problem is that the sprite is part of a larger texture. I just want to draw the portion of the texture that holds a static sprite.
How do I do this?

Code (csharp):

1.  
2. public override void OnInspectorGUI() {
3. //...
4. Rect spriteSheetRect = GUILayoutUtility.GetRect( 32.0f, 32.0f, GUILayout.ExpandWidth( false ), GUILayout.ExpandHeight(false) );
5. EditorGUI.DrawPreviewTexture(new Rect(0,0,50, 50),S_C.texture);
6. //...
7. }

 

FYI Solved it using the Texture2D.SetPixels, to make the sprite into its own texture. It sucks that I couldn't pass a sprite preview into the inspector.

 

(Sorry for necro, but info on this is pretty sparse)
Could you, by chance, post a code sample using your said solution? That would greatly help the community (read: "me") in replicating your result. ^_^ Many thanks.

 

In custom inspector:

Code (CSharp):

1. public override void OnInspectorGUI()
2. {
3.     var texture = AssetPreview.GetAssetPreview(sprite);
4.     GUILayout.Label(texture);
5. }

 

If you need a preview that allow selecting a sprite (like in the script import settins or some material editors), you can use a specifc overload of

EditorGUI.ObjectField

. By feeding it the

typeof(Sprite)

parameter, the resulting field will be shaped like this :

 

You could use the integrated preview panel that shows at the bottom of the inspector:
https://docs.unity3d.com/ScriptReference/ObjectPreview.html

 

Pardon the necro, I'm having problems with this implementation. My sprite is part of a spritesheet, and when I get the texture it just shows each and every sprite in said spritesheet

 

@Avalin

Well you can load the sprite asset, it will contain all the subassets. First one is the root asset. Path (in this case) is your sprite asset path.

Code (CSharp):

1.  UnityEngine.Object[] asset = AssetDatabase.LoadAllAssetsAtPath(path);

Then take sub assets from this array and make those into previews. And this is actually IMGUI / Editor scripting question... but anyway that should work.

 

Sorry to necro this, but could you show me the exact code you used to get this output? It's precisely what I need and I haven't been able to get it to work after several hours of tinkering.

 

I know you asked someone else, this is quite an old thread (and a wrong forum too) but I guess I could answer.

Something like this?

You would have this code in your custom editor's OnInspectorGUI method for example, and "sprite" is a field of type Sprite in your custom editor.

Code (CSharp):

1. // Square box style
2. // drop your sprite here
3. sprite = EditorGUILayout.ObjectField(sprite, typeof(Sprite), true,
4. GUILayout.Height(48), GUILayout.Width(48)) as Sprite;

It will create a field like this here, you can drop or browse a sprite and it will show it:

 

Thanks for sharing this, exactly what I was looking for!

 

Sorry for replying again, but I ran into an issue.

I'm trying to get the same result by using UIElements and UIToolkit. Everything works except that the field isn't displaying a preview. It sets the value properly tho. Any idea on why this happens?

This is what I'm trying to do:

Code (CSharp):

1. // Querying the field since the UI is created with UIToolkit.
2.         ObjectField skillIconField = rightPane.Q<ObjectField>(name = "skill-icon-field");
3.         // Binding the property I want to the field.
4.         skillIconField.BindProperty(serializedSkill.FindProperty(nameof(Skill.skillData)).FindPropertyRelative(nameof(SkillData.Icon)));

This is the result I'm getting:

 

Thank you very much!!!

 

For anybody looking at this old thread, let me save you some time: these solutions are deprecated, here's the right way:

Code (CSharp):

1.  
2. EditorGUILayout.BeginHorizontal();
3. Layout.PrefixLabel("Source Texture");
4. texture = (Texture2D)EditorGUILayout.ObjectField(texture, typeof(Texture2D), allowSceneObjects: true);
5. EditorGUILayout.EndHorizontal();
6.  

This results in a GUI like this: