random value… hold it for duration

[CrumbsChief]

I’m new to flame expressions and i have a quick question.

I’m trying to assign a random value to a channel, but i want to hold that random value for the duration of the clip. In other words… pick a random value for frame 1 and hold it.

If i use “rand” or “truerand” it gives a random value to each frame in that channel. Could I generate random numbers in a dummy axis and then just pull from it the value at one random frame?

[jack05282 sparrow]

Hi CrumbsChief,

Not sure exacly the context, but maybe this will help you…

you need 3 axis

You take your axis01 and apply your rand function to it (lets say rand(frame)*10 – This will give you a random value between -10 and 10

---

you have your axis02 where you use this on your xposition channel :
eval(axis01.position.x , axis03.position.x)
– This will extract a certain value from your axis01 position.x at a spacific frame, the frame will be specified by the value of axis03 postion.x

and you have your axis03 where you change your position x value to get a random value

So… ; ) by changing the x position value of axis03, you give a randon value to axis02 x position, and the value stays the same for the whole sequence.

Maybe there is a much easier way to do this but I hope this will help or inspire you !

good luck

[Author]

Posts