I don't think there's a right or wrong answer. It's a balance of performance and appearance.Do I have to set every alpha texture to chroma or only in exceptions?
Again, it depends. I reckon you could keep using alpha on the fences if it doesn't make your track run like a slideshow and there are no graphical glitches.Only the trees or the fences, too?
Not if you remember to overwrite the xpack that is in your project folder. You'll know if that's worked the next time you start BTB and load your project. Incidentally, recently I wrote a batch file which makes it easy to update XPacks:And do I have to clear and put the objects again generally after updating an xpack?