Per-Vertex varyings in URP SG?

Hi there,

Is there a way to have varying's in ShaderGraph? I have a few calculations that only need to be per-vertex, with the results then interpolated for the pixel shader. For my cases, these would be significant optimisations, since my world is low poly, but the calculations would be overkill per-pixel.

Is it possible to do this somehow? Perhaps with a custom node/file? Or do I need to write my own shaders for this? Secondary question - is it possible to mix hand-made shaders and ShaderGraph shaders in the same URP project (I guess so).

Thanks!

 

After a bit more searching, it seems custom interpolators are in 2021.2.

https://blog.unity.com/technology/whats-new-in-shader-graph-20212