I want to paint the fassade of my building with some leaves here and there. The file I'm using as a brush is a png with transparent parts. It's working fine in texture paint mode, but in renders it always displays the alpha as black. I created the picture which is painted on with transparent background though, so I'm not seeing why this is happening. Any clues?
Thanks to @brockmann's hint I was able to resolve this issue. It was just a matter of connecting the alpha channel of the image node (got to shading tab) to the alpha input of the material node as such:
Apparently Evee does not render this correctly, so I needed to switch to cycles to see how it looks!