Anyone else seeing black squares in their lightmaps? It worked fine for my small scene, then my larger one introduced those weird artifacts. Also, at one point I had 80 batches and 400k tris with almost no lightmapping with very smooth movement, now I have 40k tris with lightmaps and the scene crashes fairly often. Shouldn't it be the other way around?
I got weird light maps as well, on the same scene where it worked fine on previously.
If you have very large light maps you'll run the risk of running out of memory, try setting the texel size smaller or using compression (do it using the manual override with fast compression or it will take hours)
Also if an object needs to cast shadows but not be light mapped itself you can set the size of the light map scale to 0 and it will take up no extra space on the light maps. (Don't set it to shadows only mode as it still takes up light map texture space)
