Track Axis

– This parameter lets you decide what axis (side/face) of your object will point to the Target.
– It can get tricky if you try to randomly set it without considering the Up parameter.

– I found easy to follow these steps:

1 (Track Axis): Decide what axis (side/face) you want to point the target
2 (Up): Select the axis pointing upwards

– For example, look at Suzanne:

Suzanne with Axis

– In the left video I want Suzanne (whose upward axis is the Z axis) look at the banana, so I choose X as “Track Axis” and Z as “Up”.
– If we choose the Y axis as “Track Axis” we’ll obtain the Y axis of Suzanne pointing to the banana, as expected!
– It’s Easy!

Blender Track To Axis