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How to toggle color parameter in blueprint for dynamic material

Hello there,

I have managed to make dynamic material that can change color in Game play, but for each change I have to press different key on the keyboard. Here is my blueprint setting for this to work:

alt text alt text

How, what I want to do is to change parameter values of the color whit pressing only one key on the keybord. How can I do that? Can anybody help?

Thank you!

Product Version: UE 4.18
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asked Oct 31 '17 at 10:52 AM in Blueprint Scripting

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anetopuceto
16 6 9 15

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2 answers: sort voted first

This will work if I want to change two values, in my case I have three. I made it work with this event graph:

alt text

But now I have a new problem, I want to change two different materials on one mesh and made this construction but doesn't change anything in Game play...

alt text

Where is my mistake?

working.jpg (406.4 kB)
change-material.jpg (423.6 kB)
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answered Oct 31 '17 at 12:27 PM

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anetopuceto
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In simple way you can use FlipFlop. It will execute A or B outputs alternately.

But to have more control on this you can use some boolean variable like "ColorChanged", and use it as condition to change color. For example, by default ColorChanged == false. When you press key, with Branch check ColorChanged.

On false -> set color to whatever you want -> set ColorChanged to true.

On True -> set color to default one -> set ColorChanged to false.

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answered Oct 31 '17 at 11:06 AM

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redbox
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