I’ve been messing with this in Unity 3 and after I bake an object with just a white light, there are purple and yellow artifacts on my objects, not just the while light.
Any help would be appreciated.
Yes, it’s unity pvrtc compression artifact problem. The same with all textures.
Turn off lightmap compression
See : http://forum.unity3d.com/viewtopic.php?p=343952#343952