It's on the polyhaven link, all free.

[green willow]

I seem to be getting different contents, perhaps

[earnest pond]

That's it

For some reason the model only comes with the trunk e branches mesh

Click on the checkbox for the texture you want to download

[green willow]

I don't see the compiled mask map though

https://cdn.discordapp.com/attachments/517108768933281843/1239231387148484751/image.png?ex=66422baa&is=6640da2a&hm=a6d2b20b7c43afc23c7d2ca959eaa7644696ffb28dc8251fd9b5fbd5969648d9&

Like you had here

[earnest pond]

Its the AO/Rough/Metallic

On the tree pack is just called "arm"

[green willow]

Ah, makes sense

Mystery solved, I believe

@earnest pond Because the texture has nothing in the alpha channel when imported, it's automatically given a texture format that can't have alpha

And swizzling to give it alpha cannot change that
Which I believe is an oversight on Unity's part

[earnest pond]

That explains the weird glossyness all the materials are having.

[green willow]

Indeed, it was forcing A / smoothness to 1

Fix it by overriding the format here to RGBA DXT5/BC3

And using the swizzling settings from earlier

[earnest pond]

What does this do to the alpha?

[green willow]

It swaps the texture format to one that supports alpha

And lets us define data in that channel by swizzling

Otherwise it defaults to RGB DXT1/BC1 which ignores alpha entirely and treats it as 1

[earnest pond]

Try to change the scene to Unlit Draw Mode and see if you get these errors

[green willow]

Nope, though I'm not on Unity 6

[earnest pond]

Hopefully its just a bug then