particle system alpha doesn't work with billboard sprites?

Questions & Answers
1

16104-smokeparticle.png
16104-smokeparticle.png1866×1080 99.7 KB

Is this a bug, or just a feature the free version of Unity doesn’t currently have?

Alpha gradient works fine when I’m dealing with the simple white blobs that you start with when you create a particle system, but as soon as I change the renderer to billboard, and attach my own material to it;(a .png with an diffuse/transparency assigned to the material)…nothing happens. The particles ignore the color over lifetime transpareny gradient and just simply disappear when they’ve reached their lifetime limit.

Anyone else have the same issue?

2

Ok I solved this with a little help from an old blog I stumbled across with google…

http://forestjohnson.blogspot.ca/2007/12/particle-effects-tutorial.html

The issue was the material shader I had selected was wrong. Needs to be Particles/Alpha Blended.

Works great now!

3

This shader is now under Legacy/Particles. Still works.

4

Thanks for the post I was going nuts trying to figure this one out!

To get same result with URP I used Universal Render Pipelines\particles\simple lit