Material help Pleasee

hello guys I’m kinda new to this game development thing and I really like it but I’m having a hard time with materials, I’m not an artist but I try to do my best.
my problem is I have a texture with 3 images and I already have the one image on target (meaning out of the 3 images only one is visible) but the background of the image
is still there. So my question is how do I make the the background go away so that the mesh gets the shape of the image.
thanks in advance

You need a alpha channel then connect it with the opactiy mask link and choose “masked” under the blend mode

That’s how a alpha channel looks like:

tanks man that got it done
your help is