Create fading rings along particle system?

[cwalrus]

Hi there - I’d like to create a row of rings in a line using a particle system to have them fade out over time. I can apply a sprite texture, but then I can’t fade them out…
Like this image, but with the ability to fade them off:

Thanks for any help!

[OhBriz]

You can scale the alpha by sampling a curve using the particle’s normalized age, you’ll need to also add the particle colour node to the material sprite you are using, plugging the alpha channel into opacity
This way you can can control both the fade in and out

[cwalrus]

Thank you!! I was missing the particle color node…