Multiple Expressions Per Particles (How To?)

Maya
1

Hi,

I'm trying to use multiple expressions on different attributes of a particle system.

I create an emitter, run the frame forward and select the particles. In the attribute editor I open the Per Particles little twiddle down. I right click on position and make an expression for creation and runtime. Ok, so I have one expression controlling the position of my particles. This part works. Now I want to link the radius of the particles to the age of the particles. I twiddle down the Add Dynamic Attributes thingy and click the General button. This allows me to add the radiusPP attribute that shows up in the Per Particles Attributes. Now I right click on the radiusPP and open up the expression editor and I see my previous expression for position. The create button is now an Edit button, so I am not creating a new expression for the radiusPP, but editing my previous expression for the position, even though, I right clicked on the radiusPP! I thought Maya could handle expressions on almost anything? Maybe I am wrong, if anyone out there knows what I am talking about and has a solution for creating multiple expressions on a per particle basis, a reply would be appreciated.

Thankx in advance,
Enivob

2

Why don

3

Don't worry, you're not editing the previous expression, you're editing your list of either creation or runtime expressions. Just type in your expressions for radiusPP, it won't change anything you did with position.

4

Thanks for the feedback, I figured it out after I posted and went back at it. Duh, your right, it just all goes in one place. As a VB programmer, I'm used to seeing lots of separate events and expected that Maya had that kind of architecture. But now that I think about it, the event is the PerParticle and the properties of the objects you can manipulate are the parameters that are either default or what you add from the general button.

Prety dang cool