Rune Stubbe dc5e9cb018 Nanite support for geometry collection ...

The Nanite builder now accepts a set of meshes that will be built into a single resource with a hierarchy root for each input mesh.
Updated runtime code to use this feature for Geometry collection.
Each GC now takes up just a single root page.
Changed geometry collection serialization so Nanite data is now transient similar to how it is transient in RenderData for StaticMesh.
Added bogus serialization functions for parsing and throwing away the old Nanite data, so we don't crash when parsing old files.

#rb brian.karis, graham.wihlidal

[CL 14828108 by Rune Stubbe in ue5-main branch]

2020-12-01 11:18:19 -04:00

..

NaniteBuilder.h

Nanite support for geometry collection

2020-12-01 11:18:19 -04:00