Apologies for the delay.
Clean edge flow - which is usually easier to achieve with quads than tris
I reached out to the team to clarify this and it seems our TwinMotion Nanite recommendations aren’t up to date and really the topology makes no difference because everything is triangles in the end. There aren’t strict guidelines for modelling that differ from what a modeler would already be used to:
- Connected surfaces are preferred, and will do better, but disconnected only becomes a problem in extreme cases, for example hard edges are fine but 100% facetted are not. Usually that’s a bug anyways. You can also have cases where a mesh is made up of many unconnected surfaces for example wall meshes made up of individual unconnected bricks that won’t cluster in the distance as well as if they were connected.
- Uniform density is not necessary.
- If you add splits on flat surfaces Nanite will get rid of them at runtime anyways but it will waste disk space.
- Nanite is more resilient to non-manifold than most tools are.
- Holes are fine
Hope that helps!