I've been working hard these past few days on coming up with a solution that allows for custom atlas textures with albedo, normal, and parallax mapping. This is the result:
![](https://i.imgur.com/qd08HsH.png)
![](https://i.imgur.com/AgyWxoq.png)
Round studs by Kokonut & Pandan
![](https://i.imgur.com/xEV8egD.png)
![](https://i.imgur.com/9k1cUok.png)
Example stud atlas texture:
![](https://i.imgur.com/59h2AIx.png)
The bottom left of the image is information for the shader letting it know this is a custom atlas map.
The bottom right is the heightmap for parallax effect.
The top left is the albedo.
The tom right is the normal map.