In the Required section of the emitter, change Screen Alignment from “PSA Square” to “PSA Rectangle”, then you’ll be able to scale non-uniformly.
I’m sure this answer is way too late for the original poster, hope it helps others!
In the Required section of the emitter, change Screen Alignment from “PSA Square” to “PSA Rectangle”, then you’ll be able to scale non-uniformly.
I’m sure this answer is way too late for the original poster, hope it helps others!