koobas.hobune.stream
How to set thumbnail of assets from a script?
How would I like to know how to set an asset's texture from an editor script. Basically, I made my own rendering engine in DOTS and want to preview the prefabs with my own image and not the default blue cube. I tried
public override Texture2D RenderStaticPreview(string assetPath, UnityEngine.Object[] subAssets, int width, int height)
{
Debug.Log("Rendered Statics");
ConvertRenderer renderer = target as ConvertRenderer;
if (renderer == null || renderer.sprite == null)
return null;
Texture2D cache = new Texture2D(width, height);
EditorUtility.CopySerialized(AssetPreview.GetAssetPreview(renderer.sprite), cache);
return cache;
}
Doesn't seem to do anything. If you need a reference for what I am trying to do, there is an asset called "AssetIcons" that does what I am talking about.
Thanks!
I got my DOTS sprite rendering engine working perfectly, this is just one of the last hiccups. Basically, I want to preview prefabs from the asset window and just need to replace the default cube texture.
Bump, I know a lot of others wanted something similar to this and this should help them out if it gets answered.
[CustomEditor(typeof(GameObject))]
public class ChangeObjectThumbEditor : Editor
{
public Texture2D texture;
public void OnEnable()
{
texture = Resources.Load<Texture2D>("DesertHeart");
}
public override Texture2D RenderStaticPreview(string assetPath, UnityEngine.Object[] subAssets, int width, int height)
{
Debug.Log("Rendered Statics");
GameObject renderer = target as GameObject;
if (renderer == null || texture == null)
return null;
Texture2D cache = new Texture2D(width, height);
EditorUtility.CopySerialized(AssetPreview.GetAssetPreview(texture), cache);
return cache;
}
}
Here is the code that allows you to change the thumbnail. It's extremely primitive, but should give you an idea of how to proceed.
RenderStaticPreview only works for ScriptableObjects, not for gameObjects with a component (there could be more possible thumbnails coming from different scripts that way)
You just game me an idea to use "[CustomEditor(typeof(Gameobject))]" and it worked! It's still behaving weird but the basic idea behind what I wanted works.
Thanks!
Cool, I didn't think it'd work :-P Also I think that static preview is only visible for bigger size thumbnails, not when you are listing the assets with the smallest gui possible - not sure, maybe it changed
It also works for small assets. $$anonymous$$y textures show up in the object fields which are only 32x32 pixels. I am amazed that it worked so well and didn't need more code to work properly.
