Im after getting help on finding the signed angle between 2 3d vectors.
i have 2 vectors that can rotate, i want to get the angle from vector 1 to vector 2 taking into account the rotation of the vector.
i have this robot which spins the top half of its body, if its not facing the other vector i need the angle to make this top body part rotate to face the other vector.
ive scoured the internet for days however everything i have tried has failed.
can anyone help with this.