I have two unit vectors, a and b. How can I get the vector c which is parallel along the angle bisector of a and b.
Are these Vector2s?
If so I think you can do
local anglea = math.atan2(a.X, a.Y)
local angleb = math.atan2(b.X, b.Y)
These should give you the angles that each of vector a and b are at
The angle of the vector bisecting them is just the average of these
so
local anglec = (anglea + angleb) / 2
Then make a vector with that
local c = Vector2.new(math.cos(anglec), math.sin(anglec))
What tongy posted is probably more of what you’re looking for, but I was trying to visualize what was going on and the method I went for basically gave you a coordinate on C with an adjustable length of C. If it helps any here you go.
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If both vectors are unit vectors, then the sum of the vectors will bisect the angle between them. (Unless I am misunderstanding your question.)
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it looks like you are just adding the vectors together then normalizing it to me