Question Why does my sampled texture have a thick, inconsistent border?

I'm just starting with Shader Graph and I'm following a tutorial. I have this sprite:


Which I'm using as the _MainTex in a brand new URP shader graph, but it's coming out with a messed up border around it when sampled and I can't figure out why:


I've swapped in several other textures with the same result. What am I doing wrong?

 

Here's another example:

 

Any suggestions on how I can troubleshoot this? It's not project specific. I created an empty project and it's doing the same thing. Shader graph is basically impossible for me to use at the moment. This is my first time trying to use it, so that's upsetting.

 

You are not doing anything wrong. This texture has additional extruded margin and it does not break anything by default. This is visible because node preview does not take alpha into account and what you see is only RGB, so if you take RGB and multiply it by Alpha you should get your original image. Sometimes you might want to premultiply alpha into texture, but I don't think this is the case if you are new to SG.

 

Thanks, I think I understand that... But in the tutorial I'm following, it doesn't do that.

Edit: Although, maybe it wasn't clear, those borders show up in the main window preview and in game view. I was just snipping them from there. It looks the same all the way out.

I'm trying to recreate that SG but it always has these weird thick borders and they show up in game view. Is that because I need to add a multiply in there somewhere? That tutorial is using an older version before they split up the last node, so I'm sure I'm just doing something dumb.

 

If you take a good look you might notice he has exactly the same types of artifacts in preview of

Sample Texture 2D

node (red and brown squares and line next to sword). Nevertheless as you said it's not visible in main preview and the reason for that is you don't provide alpha. In old version there is color Vector4 for RGBA, but in new versions there will be base color Vector3 and alpha separately.

 

Thank you very much (even 4 years later). I was looking for such advise for few hours now. It worked perfectly.