In Nigara system how to modify mesh size ?

Hi

I have a bullet shell that I need to reduce its size so I tried these methods:

1 - “Initialize Particle” I changed sprite size mode to “uniform” and uniform sprite size to 0.01 but nothing changed

2- I tried to add Scale Sprite Size to “Particle Update” and change it to uniform and 0.2 but I noticed no change in the size

3- I tried to add “Scale Mesh Size” in the “Particle Update” but this time the mesh disappear

Please advise how to change particle size

hi you can adjust mesh size in initial particle.
there’s 3 options stay side by side.(mesh size,sprite size,ribbon size)
your using mesh particle so you should adjust that.

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I tried “scale mesh size” with xyz at 1 but the mesh disappear I tried other values but nothing appear. do you need a certain file to test my work ?

what ribbon size used for ?

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How about deleting that scale mesh size and set it in initialize?

and the ribbon size is for controlling ribbon’s size. It’s another type of particle,has nothing to do with mesh,so do the sprite size.(sprite is a 2d image)

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What you mean sprite is a 2d image ? I modiifed “sprite size mode” in inialize particle and tried different values but it has no effect

here’s an example
3 different type of Niagara:

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Finally thanks alot for precious answer and learning new info. :clap: :heart_eyes:

“Scale mesh size” in “particle update” did not work

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unfortunately I also have no clue why it disappears.
usually it should work.
it works the same as the one in the initialize particle.
difference is that everything in the update particle runs on tick.
you could treat the initialize particle as “begin play” in blueprint,it only run once.

if you don’t need it to change size gradually,you can delete it from update particle module .

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