Character Artist @Blizzard_Ent - I make polygons, do art things, and play a LOT of games | Dumb as they might be, my opinions & posts are my own. 
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3) whatever the fuck orientation that edge is when you export it to your engine is where the triangles lay. You either control that fucking bastard edge or let the exporter pick backed on distance.
Yes! Fukkin this!
I run into issues where even the various engines/other platforms do their own wacky calculations on triangle edge direction. It's frustrating as hell to realize you plowed your way through baking but forgot to triangulate so now your normals are borked. 
