Hi,
what works best performance wise in Unity.
One large 4096x4096 lightmap for a whole bunch of objects → but this means big lightmap for each object
or
lower resolution lightmaps created for each single object.
Thank you
larger single texture is from the performance point of view potentially better but the problem is that your targeted size is a bit out of scale unless you target on higher end machines only. so if your lightmap usage is spread appart enough, using multiple smaller ones is a much better idea