This is another Portal VFX idea. A Twister Portal. It was made in Unity 3D with particle system, some mesh's made in Blender. The smoke and the other sprites I made them in Photoshop.
Ohh, if you want yo take a look, visit me on https://assetstore.unity.com/publishers/45845 :D
Or if you prefer see you on Intagram https://www.instagram.com/inguzmediastudio/