Question Get source texture of packed sprite

Hello,

That is how we can get source texture of packed sprite[Documentation]:

Code (CSharp):

1. public static Texture2D SpriteUtility.GetSpriteTexture(Sprite sprite, bool getAtlasData);

However, in this way you cannot build your game due to SpriteUtility belongs to UnityEditor namespace.
Is there a way to achieve the same result but not in UnityEditor namespace?

 

Sprite.texture

 

@orionsyndrome No. First line in documentation:
Get the reference to the used texture. If packed this will point to the atlas, if not packed will point to the source sprite.

 

I'm sorry, but the in-game runtime texture can contain only atlases. What would be the purpose of an atlas, if game had access to both the atlas AND the source textures? Can you appreciate the point of an atlas in the first place?

 

Hmm... If Sprite have access only to atlas texture then how it get it's sprite? There should be a mechanism behind it that I can copy, no?

 

It got its sprite from the importer, then the atlas is made, then the runtime has access to this atlas.

Atlases are packed to a) reduce the amount of textures / optimize memory consumption, and thus b) reduce draw calls / improve performance / improve compression rate etc. If you keep the original sprites lingering around, there are no benefits, especially with many sprites.

But maybe there is some runtime utility I don't know about. There is DataUtility for example.
I just thought I should offer the most obvious answer, in case you missed it somehow, because there is no way you get the reference to the original sprite texture, that would defeat the point of an atlas entirely.

 

Thank you for answers, looks like you was right. For now it doesn't make sense to get texture if atlas exists.

 

I have the same problem. I am actively looking for a solution.

Edit : https://answers.unity.com/questions...atlas.html?childToView=1937434#answer-1937434
Same question, no answer.

Edit : Ractangle

Edit : Okay, long story short :

Make sure you DISABLE 'TightPacking' in the Sprite Atlas and ENABLE 'Read/Write'

Code (CSharp):

1.             // Get the sprite in the atlas
2.             Sprite sprite = _item.Sprite;
3.  
4.             // Get the texture of the atlas
5.             Texture2D texture = sprite.texture;
6.  
7.             // Get the texture of the sprite in the atlas
8.             Texture2D spriteTexture = new Texture2D((int)sprite.textureRect.width, (int)sprite.textureRect.height);
9.             spriteTexture.SetPixels(texture.GetPixels((int)sprite.textureRect.x, (int)sprite.textureRect.y, (int)sprite.textureRect.width, (int)sprite.textureRect.height));
10.             spriteTexture.Apply();