VR ArchViz and the 2GB Limit lot of Lightmaps - Solution?

Development Platform & Builds XR Development
1

Hello everyone,

I got a ArchViz Stock Project from my client. It’s already a UE4 Project and I need to translate it to a VR Build. But I can’t build it because “FMemoryWriter does not support data larger than 2GB”. The scene has 372 Lightmaps and the resolution is 1024. Its just a small Archviz from a 4 room Appartment with a balcony…but with a lot of details, so its feels alive. I dont see any sense in it to split it up too seperate levels or how can I do it seemless? I can’t just switch to realtime lighting because Its a VR-App…(for the Vive). What can I do?

Thank you very much in Advance!

2

First downscale all lightmaps on wall/floor/ceiling to 256 or 512, as normally these have largest area so it can save a fortune on lightmaps.

Don’t too worry about artifacts as due to the low-res in HMD artifacts to a point is ignorable.

3

Thank you for your input. I already solved it by using 4.15 instead of 4.16. I guess it’s a bug?