Hey,
Is there a possibility to transform HUD elements like this one : Imgur: The magic of the Internet
So I use a not transformed texture (?) and then transform it with blueprints somehow ? (:
Thank you very much !! 
I also would use c++. But i want to build a health bar with this transform Or could I transform it with photoshop and make it some how as a health bar ? (:
Not with canvas, maybe with Slate (for no only C++, you need to wait for UMG to make it work with Blueprint) or some 3rd party solution like Coherent UI or Scaleform… or pretransfromed as you suggesting, what would work even with canvas