Answers for "Finding if two forward vectors face each other"
https://answers.unrealengine.com/questions/687637/finding-if-two-forward-vectors-face-each-other.html
The latest answers for the question "Finding if two forward vectors face each other"Answer by Shogo999
https://answers.unrealengine.com/answers/678749/view.html
With the dot product of both forward vectors you can get which direction they are facing. If the dot product is greater than 0 both vectors are pointing in the same direction, if the dot product of both forward vectors is less than 0 the two vectors are facing in opposite directions.
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[1]: /storage/temp/204282-dot.jpgSat, 12 Aug 2017 22:13:45 GMTShogo999