3d models in Widgets (UMG)

Hi! I know this has been asked a heap of times for UMG.
I’m trying to display and rotate a model in widget. Samples: Tomb Raider, Middle-earth: Shadow of Mordor showing artefacts.

I have two ideas:

  1. Render to texture. Some issues: cuting out background - part of object dissapears with background (objects may contain any color), Input control - existing components has limited capabilities, and i can’t retranslate input to the object itself or simulate it (any ideas?)
  2. Combine Widgets with 3D scene. Issues: smooth transion between cameras (any ideas?)

Have you watched this video tutorial?

Yes, I saw it. But I missed part with alpha channel. Thank you.
By the way, alpha channel works only in orthographic mode. Do you have any ideas to do the same in perspective mode?
But I still have some issues with it. 1. Clicking on transparent part of image. 2. Image has only one input event. So, almost all events are processed in player controller.