I'm currently trying to bake my textures onto a model for exporting it to Unity3D. Lighting is set up as normal, and a joined copy of the model has been created via duplication, in the exact position as the original version.
However, it seems that during the bake process, the roof texture is being flipped with the chimney texture;
https://i.stack.imgur.com/sDPDT.jpg
It looks like it's almost baking the texture map that's looking down the chimney, rather than a straight flip? Following this then, the side of the chimney is displaying the roof tiling texture.
The above is with a ray distance of 1. Setting ray distance to 2 seems to magnify the effect, while setting it to 0.5 seems to make it slightly better. However, going much lower than this results in a lot of artifacting.
Would anyone have any ideas on how you can work around this?