Instance particles with random scale?

[mizula]

I want to make 5 different objects, ie. rocks, and have one emitter spray out random sized, random picked objects....

So how do i control, the scalePP (if there is such a thing) on instanced particles? and where do i tell the emitter to spray out 1 of each different objekt, so it looks like a random number of different objekts.

Thanks a lot.

[someboy]

Hey johoo,

To get it to choose a random object for each particle:

add a float array(per particle) attr to your particle
eg. particleShape1.myIndex

now in your creation rule put -

//lets say you have 5 objects

particleShape1.myIndex = trunc(rand(0,5));

In your instancer you must check " allow all data types ".
Now in the "object index" pull down menu, select the attribute you created - myIndex.

To get random scaled instances -

again add a float array(per particle) attr to your particle
eg. particleShape1.randScale

In your creation rule put :

particleShape1.randScale = rand(0.5,1); //edit to your liking

Now in your instancer node, go to the "scale" pull down menu and select - randScale

shazam!

Remember to rewind your animation to get the rules to evaluate

Hope this helps

sam bui
sam@wetafx.co.nz