Hello, so I have been trying to create a portal like the reference video. The main goal is to have a flat plane and make the material look like a wormhole/portal.
I have been able to make portal using a wormhole mesh but I want it on a flat plane like above.
I tried using bumpoffset but it doesn’t keep hole in center and moves.
I used parallaxocclusionmapping node and it works the best but this is an expensive node from what I know. So I have been trying to make something simpler.
I have also tried using bumpoffset and stacking rotating texture at different heights but still same issue, the center hole (black color) does not stay in center when moving at different angles.
Not sure how expensive it could be but maybe you could try creating the inside of the portal in 3D and masking it by the plane shape using a stencil buffer.
This post should give you an insight on how it look’s
