changing a material in an umg widget fails

Development Programming & Scripting UI
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1

Hi :slight_smile:

so, first I tried to make a material fade from black to transparent in a widget, when the game starts.
The widget gets drawn as expected but I get an error message telling me it can not read from the (user-Interface)-Material when it should change.

I didn’t know if something is wrong with the alpha of the texture or something, so i tried changing the color of the material with a vector parameter but I get the same error-message, the color doesnt change.

What am I doing wrong? Can somebody please help me out?

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2

You are taking a MaterialInstanceDynamic material and making a MaterialInstaceDynamic material out of it. That would not work, do it like this:

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Essentially, when you’re plugging Parent into CreateDynamicMaterialInstance node, that Parent has yet to be created. At that time, it’s just an empty variable.