I’m trying to create a pair of eyes that will look at an object whenever it moves.
In 3ds max this is quite easy to accomplish by simply giving the eyes a “Look at Constraint”
Is there such a function in UE4?
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Hi pdcsky,
Without knowing exactly what it is I can only speculate. Bare with this…
Ok, lets say we have a pair of eyes. A Mesh eye ball individually placed inside a skull.
In the blueprints you would, possibly, have a tick event or an event that fires from a trigger then loops (performance?), pull from the eyeball mesh and create a function to set rotation.
Next you would need to do a call to find the target you are looking at. For example, get all actors of class with a For Each Loop with Break (again performance…) and find the matching actor and get its location Vector and store that reference as a variable.
Next you would set the eyeball rotation to look towards that vector by setting rotation, this could take some math. I’d suggest a clamp to stop the eye balls spinning into the back of your face.
This is probably a noob approach but I could foresee it working. Maybe not the best method but it might be a good method to try and test and then find optimisations later. (That’s how I roll)
Good luck!
Hello!
You have to make a blueprint that makes the mesh or actor rotate to look at the target location or actor each tick like NukePie explained. The math part is luckily done by UE! 
Something like this should work:
If you are trying it in code:
//Calculates the lookat rotation from direction vector
FVector direction = FVector::ForwardVector;
FRotator lookAtRotator = FRotationMatrix::MakeFromX(direction).Rotator();
If you are trying to make a skeletal mesh look at a target (like aiming) You should take a look at this documentation: [Creating an Aim Offset | Unreal Engine Documentation][2]
I hope this helps!
Elias
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Awesome help guys! I gave the thing a try and it seems to do the trick,
what about if I wanna get 2 eyeballs that are boned up looking at each other and will keep on looking even if they’re moving?
How you describe it it sounds like AimOffset, take a look at the link in my previous comment
Can someone do a tutorial for a newbie. I’m trying tu do a short animation inside UR and a detailed tutorial of the eyes look at object will be very useful.