Hello! I am trying to achieve something like this https://youtu.be/dkufTQZnRgk?t=10s .
Is it possible to do it in UE4 or should i do it as an animation in 3D program? (Is it even possible to import non-skeletal animation into UE4?)
Can you give me some of your thoughts?
Thanks.
You could try to do something like that with tessellation in your material. Otherwise use an animation or morph targets 
Is UE4 supporting animations without skeleton?
As far as I read it’s not supported directly, but with 4.8 there is a new tool -> https://docs.unrealengine/latest/INT/Engine/Animation/Tools/VertexAnimationTool/index.html
Take a look at my little Stargate project. It´s not perfect, but works.
https://forums.unrealengine/showthread.php?76294-Stargate-Blueprint
I have accomplished it with morph targets, but my mesh is invisible when i look at it from certain angles, and at some angles it flashes (0.1 sec i can see it, other 0.1 sec i can´t). Does anybody have experience with this?
Would be easier to demonstrate it with a video and show us your material set up.
-It could be caused by backface culling -> enable “two sided” in your material or make your mesh “solid” (in your 3d program
-or that the normals are facing the wrong direction -> flip them in your 3d program
It was that backface culling, thanks 