Nanite Geometry Collection & Displacement

Development Rendering
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1

Hello,

I use hardware tessellation with nanite to perform displacement at material level.

So far I used it in Static Meshes with success, but now I need to achieve the same look on their destructible variants as Geometry Collections.

It seems GCs with Nanite enabled can’t perform displacement.

I made sure that the GC had the “Enable Nanite” flag and the Material had the “Used with Geometry Collection” flag On.

Dis I miss something in the setup, or is it not supported yep (or in the future) ?

Thanks

2

Steps to Reproduce

  • Enable tessellation with r.Nanite.AllowTessellation=1 and r.Nanite.Tessellation=1
  • Create a Material with displacement output
  • Create a Geometry Collection with nanite enabled
  • Apply material to GC
3

Hi, Nanite Displacement is not currently supported by Geometry Collections.

As a workaround, you could use the engine’s Modeling mode (Deform > Displace) to bake the displacement into the static mesh, and then use the result in a GC. I hope that helps!

4

Hey, thanks for the quick reply !

I already used baking, using it from Materials allowed us to be more flexible on where artists can use it.

Out of curiosity is it something on the roadmap we can expect from a future UE version ?

Thanks !

5

Sure thing!

We don’t have this on our immediate roadmap at this time.