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Dynamic Mat Inst on Beam PSys working in editor but not preview/game

The question says it all...

Tried setting it up with set material, with set named material parameter, or adding the material param to the array

works in editor, not in preview.

Is the editor using different engine then preview? Doesn't make any sense.

Is this a known bug?

Product Version: UE 4.19
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asked Apr 10 '18 at 12:56 PM in Bug Reports

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avatar image FrederickD Apr 10 '18 at 01:32 PM

I'm getting crazy. Now setting opacity on the particle itself trough a parameter doesn't work either.

It did before.

avatar image FrederickD Apr 10 '18 at 01:56 PM

Only works in the constructor.

avatar image FrederickD Apr 10 '18 at 04:06 PM

Concerning setting the scalar particle parameter..

It seems beam doesn't update when set to 0 spawn and 0 life which makes sense but is not immediately apparent.

... so i added just a tiny bit of life and it worked.

Thus a color over life works too, then you can set life back to 0 and it's smooth.

Same for size by life.

Still no luck with dynamic material though. So i guess answer isn't given yet.

avatar image FrederickD Apr 10 '18 at 04:09 PM

That said, can't wait until Niagara. I guess Epic won't fix bugs or add features to cascade anymore. And we'll finally have total control over everything !

avatar image Jeff A ♦♦ STAFF Apr 12 '18 at 03:49 PM


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