How to display or change the color of particles

[wangjinjing]

Hello, developers！When I was learning “Screw feeder” in an advanced tutorials，I’m not found that the screw feeder with the screw made of particles in red and the regular particles in blue.So I would like to ask how to display or change the color of particles？
Looking forward to any possible answers! Thank you very much!

[cgw]

You can either:
Save all the particles to the same file, and use “Phase ID” to distinguish them (color by “phase id”)

OR

create multiple output files and filter each one by phase:

[wangjinjing]

@cgw

use “Phase ID”

Sorry ,I use “Phase ID” but it still didn’t solve the problem

[jeff.dietiker]

Here screw and regular particles are identified by the value of the DES user scalar variable. There is a list of variables you can choose from in a drop down menu:

[wangjinjing]

I solved this problem with your help, thank you!