What's wrong with my UVs?
Hey jkaszewski -
Yes, your meshes are missing a lightmapped UV sets which will produce add artifacts if it doesn't produce a black mesh on light build. Take a glance at **this webpage** for some help getting started. As to why it happened "all of a sudden," did any of your lights change, if lights and meshes are moveable then lighting becomes dynamic and light maps are not used.
answered May 14 '14 at 05:24 PM
Lovecraft_K ♦♦ STAFF
Follow this question
Once you sign in you will be able to subscribe for any updates here