I tried it on one of our scenes. WHen it started it said ETA 10 hours and all 16 logical CPUs were maxing out at 100%. When I got back an hour later it says 4 hours, and CPU is idling
It sucks. Your best bet is to disable everything that Contribute GI (use a custom editor script for that) and turn on one by one and bake at lowest quality.
Iterate then until you’re satisfied and then leave it for 12h for the final bake on higher quality.
(In a hope it actually bakes, when it may not)
Oh yeah, terrain baking is impossible btw. On CPU it takes ages, on GPU it crashes.
TL;DR: Get Bakery. Its amazing.
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So enlighten which is deprecated is my only choose if I want to use Unity tech? 
Does bakery work with shadowmask and mixed mode?
edit: Are unity staff aware we are making real world games with their engine just not small demos?
If you’re using HDRP you may want to wait for 6.10 beacuse it will have some lightmap fixes.
Maybe it’s connected with PLM.
I’m on built in rendering. For now atleast. But HDRP probably will be too taxing for a VR game.
I see, in your image were preview packages so I assumed it’s HDRP.
Yes, and it does provide a better quality lightmaps from my experience.
Con is that its baking platform is only Windows x64 and Nvidia cards.
Lightmaps are compatible to any platform though.
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Cool, i’m on windows and nvidia so not a problem. Might need to look into bakery then. Really sad such a core feature needs custom tool
Need to look into that. This is a project migrated from 2017 > 2018 > 2019
Btw, come to think about something. We have large scenes that today use enlighten, we talk hundreds of lights per scene. Alot of them carefully configured to get the feel we want. Will Bakery spit out close to the same light levels as enlighten/plm. Or do I need to reconfigure my lights from scratch?
You’ll need to select all lights and add Bakery Directional Light (for directional lights) or Bakery Point Light components (For point light / spot light) and press single button (it will transfer settings). Bakery has manual, and everything is there about it.
Other than that, workflow is pretty much 1:1 as of in Unity’s.
It may require some adjustments / iterations if those lights are realtime (but then again, baked lights look differently with PLM / Enlighten as well).
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Will se what 2019.3 brings to the table. Always have Bakery as a second option if Unity cant deliver