I have a simple FK control rig for my character’s eyes.
I want to be able to draw a line from the eye out in the direction the character is looking, along the forward vector.
I am using 4.27, so don’t have access to the Matrix math in UE5.
Currently I have a variable “Forward” (0, 0, 1), that I rotate per the rotation of the control and then put that into the Draw Line node (see attached picture).
However, this is drawing 2 lines rather than 1.
One line is correct and moves with the forward/eyeline direction when I rotate the eye/control.
The second, incorrect line moves with the rotation but at the fraction of the correct angle.
I have previously successfully used the Draw Line node with an Aim set up (bone aiming at the control). But understand this is a different situation with the Control directly setting the transform of the Bone it is parented to in the rig hierarchy.
How would I fix this so I only get the 1 correct line firing out from the eye’s forward vector?