Question ShaderGraph: access sprite secondary texture in shader for UI image

I have a sprite with the usual

_MainTex

and an additional

_inner

texture defined as secondary texture in the sprite editor.
When I want to access this secondary texture for a material meant for the sprite renderer, I can just enter the "ref" as

_inner

in the

Texture2D

property, works like a charme.

But when I try to do the same with the same sprite with a shader meant for a UI image (in-game UI), the shader does not appear to find the secondary texture (so the same shader works on my SpriteRenderer, but doesn't on my UI image renderer).

Am I doing something wrong? Any idea what?

Thanks

 

Sorry to bump this, I still can't figure it out, any ideas?

 

I encountered same problem.
still looking for answers.

 

i got the same. when i manually set the secondary texture in the property of the shader during runtime it works but it doesnt grab it automatically in an image like it does on the sprite renderers... pretty much clueless here :-/

 

@lepus525 @unity_STWR-WB9WnBhFA
Got an answer over at Unity Answers, it seems like it's not supported at the moment, didn't find a workaround in shaders, I just use 2 superposed images for now.