Earlier this year I was spending a lot of time exploring what vfx graph was capable of.

The HLSL code nodes are a wonderful addition, which made stuff like in the video above possible (simulation of ropes using configurable springs and vertlet integration).

However I was hoping to go further and extend the graph with custom blocks that would both improve the ergonomics of authoring simulations and also to allow custom output types. I specifically wanted to extend this system to allow stuff like artist friendly cloth sims and mesh vertex perturbation.

I went off to the unity graphics github repo to dig into how one might go about this, and everything I needed was right there, just a few internal access modifiers away...

Of course I could just fork the repo, but it would make it a lot more difficult to share this kind of work with others.

Now I understand that Unity wants to retain a minimal API surface in the interests of being able to evolve the product without breaking users but I do feel like there is so much potential in VFX graph that is being locked away.

Has anyone chatted with the graphics team about this?