i try to render a picture that has (instead of a black background)
an invisible background, so when i load it in e.g. gimp i can overlay
it over another picture.
I received the hint to press “Premul” or “Key” in the render menu.
But this didn’t help, when i save a picture (raw TGA) it has a black background.
I use blender 2.2.3 on Linux.
I also tried to add a “world”, but this also didn’t seem to help.
Has anybody got a hint for me?