Setting Read/Write on Sprite Atlas does not make sprites from GetSprite() readable.

Unity Engine
1

I wanted all of my Sprites on a specific Sprite Atlas to be readable (so i can use the alphaHitTestMinimumThreshold property on Image components with sprites from that atlas) so i marked the Atlas as Read/Write, but when i load a Sprite using SpriteAtlas.GetSprite() the sprite that comes is not readable making it so changing alphaHitTestMinimumThreshold throws an exception.

If the Read/Write property on a Sprite Atlas doesn’t do that, what is the purpose of it even?

2

Just figured it out, in the Editor Settings, the Sprite Packer mode needs to be set to “Always Enabled”, so that unity actually builds the Sprite Atlas when play testing.