World position in fragment part of graph gives wrong values

[piter00999]

Hello!
Recently I was trying to make low poly water shader. I wanted the shader to be quite simple. In vertex part of the graph I’m just offsetting every vertex y pos by some amount generated by noise texture. Then in fragment part of graph I wanted to recalculate normals using DDX,DDY functions but I found out that the position I’m getting is unaffected by my vertex offsetting in vertex pass. So here is my question am I doing something wrong or this is some sort of bug?

[fffMalzbier]

You could use what you put in the position slot at the master node and transform it from object to world space.

[ph1]

@piter00999

Hello!
Recently I was trying to make low poly water shader. I wanted the shader to be quite simple. In vertex part of the graph I’m just offsetting every vertex y pos by some amount generated by noise texture. Then in fragment part of graph I wanted to recalculate normals using DDX,DDY functions but I found out that the position I’m getting is unaffected by my vertex offsetting in vertex pass. So here is my question am I doing something wrong or this is some sort of bug?

It’s a bug, the same one that’s being talked in here and several other threads https://discussions.unity.com/t/750192

[piter00999]

Thank you! Transforming position from object to world worked !