 So you wish there was an easy way to randomly control your parameter values from inside the Niagara particle system, not a problem. You can see we get some different looks by adjusting the radius, the density and the speed of these values. So ideally we would like to randomize these values each time a particle is generated so it looks different from the last. In order to set that up, we just need a dynamic parameter node, name all the variables that it's going to control, and drag them in like so. Then in your particle system, add a dynamic material parameter, and you will see all the values you set right here. From this point, you just click the down arrows right here to randomize whatever you want and you're done. From now on, no two smoke particles will ever look exactly the same. Hope that helps and as always, hope you have a fantastic day and I'll see you around.