Inspired by Designer Life | Link to reference: https://youtu.be/uRcQ9VRD44Q?list=PLWwpXGlZt0lL2gJmmxWOBEJ4XrknuqcCK&t=6
It helped me understand how to do the UV for the portal mesh and how to do the material but I did my textures and anticipation. I improvised a little bit for the whole concept until I was satisfied and it took me around 4 days to do it.
Textures were generated procedurally in Substance Designer based on those videos:
Videos from 3dEx | https://www.youtube.com/watch?v=iz1YMOTvE7o&t=2s
https://www.youtube.com/watch?v=3UqfXlkw8hk
Video from Balaganvfx | https://www.youtube.com/watch?v=QIDt7k5EjeI
Post of Ryan Zeng in Real-Time VFX| https://realtimevfx.com/t/rzfx-flow-trail-breakdown/6483
Texture in Photoshop based on this video from Ikky Design: https://www.youtube.com/watch?v=uTYk0yMXXmw
And the Spark was made with the vector shape tool (Ellipse). | https://www.canstockphoto.es/conjunto-estrella-destello-s%C3%ADmbolos-33495476.html
Video | Portal
Made by myself in a simple custom scene in Unreal Engine 4.
Video | Portal
Version 2