Are there any good advanced UV mapping tutorials?

[Richard Simpson]

I'm starting to use blender more again, but I always have trouble marking the seams for a UV map on a complex mesh... for example, A house with doors and windows. Sometimes the smart unwrap feature works, but puts faces in weird places and distorts them a bit on the map. I've searched on youtube multiple times with no luck at finding a good tutorial. Does anyone know of one that explains marking seams well?

 

Thanks!