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how can i do smooth fade on blueprint?

Hi guys, how can i do smooth fade on blueprint? , i think i must using time line (for changing values at time) and something else, but i don't know what...... how can i get something like Opacity parameter for actors (2d sprite, mesh and other objects)


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asked Aug 29 '14 at 01:22 PM in Blueprint Scripting

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avatar image Alexander Paschall ♦♦ EPIC Aug 29 '14 at 03:14 PM


I thought that you may want to knwo that there is a known limitation with doing fading with blueprints and paper2d:


"The fade track feature is applied in our postprocessing which is not used in that case. Getting that feature would require a full screen pass (or we can fold it into another pass) or all materials would need to make a color transformation. We don't have that yet - fixing that should be part of the TTP. "

We are currently working on fixing this issue.

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First your material needs to be translucent. You set the opacity value(or its multiplier value) as a parameter. Then create a dynamic material instance in the blueprint > get that parameter > change it via Timeline whenever you please.

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answered Aug 29 '14 at 01:30 PM

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avatar image Jargon Aug 29 '14 at 01:35 PM

I also suggest having two instances of your mesh - one with a nontranslucent material so that you can have opaque elements and a hidden "fade" mesh that you switch to when you want to fade the BP out.

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