By default, if you’re using real-time and gradual (which generally you should be anyway), then 10 seconds. Just look for the interval(s) parameter in each layer and adjust to however many seconds you want the transition to happen over.
By default, if you’re using real-time and gradual (which generally you should be anyway), then 10 seconds. Just look for the interval(s) parameter in each layer and adjust to however many seconds you want the transition to happen over.