I had very high hopes for the lightmapping to be very much improved in this latest beta for 2018. Man, what a disappointment. So the Enlighten baker is taking just as long as it has in past version, just a silly amount of time for a simple terrain with some simple shapes on it. I actually had to kill the lightmapper after 10 minutes because I just felt it was ridiculous to wait for such simple geometry in the scene.
So move on to the Progressive Lightmapper, expecting snappier results or something to that effect. I don’t know how it’s doing because I don’t see a progress bar or percentage anymore. In fact the progress bar that’s there does not move at all anymore. I just sits there perpetually stating “baking”. That’s not very intuitive or helpful. What the heck? Feels like two steps forward, three steps back. I thought there was a team working their butts off to improve these systems, but clearly this was neglected and by appearances, looks to be a regression. Unity 2017, the Progressive Lightmapper was buggy as heck, but it at least had a progress bar and percentage done…I could see it was working.
EDIT: As I’m typing this, 8 minutes later the Progressive Lightmapper is now showing this baking ETA information. Now it’s telling me I have 20 minutes of bake time left for an extruded race track path, a fence around it and a terrain. No trees, no foliage, nothing complex at all. I just do not understand what is happening to the Unity I knew and loved. I’ve been using it since 2008 and man what I wouldn’t give to go back to the 4.6 days. Our once “lightweight” engine can’t bake lightmaps faster than Unreal engine these days. I have Unreal 4 installed as well, I hit Rebuild Lighting and even my mid range complexity scenes are fully baked in less than a couple minutes.