How to know which transition is my Animator making?

For example, if I have 5 transitions going from one node to another, how to know which transition is being made?

 

If you select your game object and the animator windows is open you should get a live link showing you the current state of your statemachine with the parameter and transition updated live.

You should see with transition is trigger and why.

 

Yes, I can see that, but for example, if I have 2 transitions linking the same nodes, how to know which of these 2 transitions my StateMachine is selecting to go from the first node to the second node? It's really hard to presume which one the state machine have chosen comparing the parameters because it's too fast!

In this case for example:


They share the same wire on the Animator window, I can't figure which of these two transitions my StateMachine selected..

 

Transition are always evaluated in the same order than they appear in the list.

So order in the list define the execution order.

In you case since both transition goes from the same state to the same state there is no visual cue to let you know which one was taken.