Sticker with other than rectangular shape

[Jaco van der Molen]

Hi all,

How would one create a sticker (using texture mapping) with another than a rectangular shape?
Like for example the stickers that come with set 42061

https://www.bricklink.com/v2/catalog/cat...01#T=C&C=0

The ones that go on the sides of the bucket. I guess that could also be done with LDraw geometry.

And how about sticker no. 4 that goes on a technic panel which itself has a irregurar and curved surface.

I can create the images, but fail to see how a (and if) a sticker can be made.

Any thoughts?

Thanks.

Jaco