fishes
 

helo, I want to make an animation of fishes with a curve flow particles , how can I achieve that fishes have the right aim direction with the direction of the particles, I think that is putting velocity atribute to aim direction but does strange movements....please heeelp!

do you make an instancer with an index attribute, what i know is you need to define first the attribute for your aim especially when you are using multi insttancing.

fishes
 

I have only one fish I put the velocity as aim direction and all goes good , the wrong thing is that when fish change direction does very fast like one frame is rotate 30 and the next rotate 60 theres no a soft line between diferences of direction, I hope I explain good because my english is not the best

Use acceleration and not velocity to change fishes' direction, at least if you're using particle expressions. This will solve your problem.

-- Mark