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Transparent material

I’m newbie and I’m trying to create a mask to Emissive Color.

This is my material:

abdb2f7563803d914bea6bae6d6ae785a656cf47.png

I have created a Blueprint actor with a MaterialBillboard using that material (I’m not using a material instance). But, as you can see, the material it isn’t transparent:

58c27f335587936d6c102cff2cf032914087c7a8.png

Attached it is the image that I’m using.

How can I show only the red part of the image without the black background?

Pick the white pin from the black and white texture and connect it to opacity. :slight_smile: