I was working on an oil lantern, to whose interior I wanted to add a flame. There are some nice flame and fire effects in the M5VFX Vol. 2 Pack from the free EPIC collection, and I thought it worked rather well for my project. So I’ve added a Niagara component to my lanterns, and discovered that the flame was too big. No worries I thought, I’ll just scale the component down in the blueprint… however that had no effect on the size of the flame.
This meant that I had to dig into the particle system itself and see if there was a way to change the flame size parameter somehow. Took a bit of digging, but I found it. Just in case either of us will have to do it again, here’s where that can be done (click to enlarge).
Open the system, then on the orange box choose Initialize Particle and take a look at the details panel. There’s a section called Mesh Attributes. Under Mesh Scale, make the adjustments you see fit. This happens live, so if you need to judge this in context, make adjustments while keeping an eye on the other viewport.
Another Unreal Engine mystery has been solved!