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how to fill a room with dust particles?

I cannot seem to figure this out even from the ambient dust particle example. I want to fill a room with particle of dust with various sprites and behaviors. In After Effects you can add a particle generator where you can set up the size of XY and Zof the particle emitter size to fill a room. I have looked in the documentation on particle behavior values like gravity, velocity, speed but in the attribute editor of the particles, all I found where drop down menus where you would expect to see editable values.

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asked May 13 '14 at 02:37 PM in Blueprint Scripting

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TobiasRipper
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2 answers: sort voted first

Hey,

Try checking this box (inside the particle effect's details panel):

alt text

You should be able to scale the particle effect in the level now to fit your room's size using the normal scale tool (R Key).

-W

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answered May 13 '14 at 03:40 PM

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DizzyWes ♦♦ STAFF
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If you use the initial location module you can define a rectangle/box volume to spawn the sprites within. I highly recommend using GPU particles for this case.

Initial Location max 150, 150, 150 min -150, -150, -150 should yield you a 300 unit square volume.

Using local space will only move them around/rotate their spawn positions and transform positions with the local emitter location/rotation axis of the placed actor.

If you want the particles to be larger, you need to change the initial size.

Check out this page for a full description of what all of the modules in Cascade do.

https://docs.unrealengine.com/latest/INT/Engine/Rendering/ParticleSystems/Cascade/index.html#modules

Hope that helps you

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answered May 17 '14 at 03:06 PM

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[Epic]homeRye STAFF
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