Procedural portal made using geometry nodes.
NOTE: You will need blender version 3.0 or higher as curve nodes are not available in the earlier versions.
A tip will be highly appreciated but you do not have to pay if you are not comfortable. By paying, you are not buying a product. You are simply supporting me to make more assets. I am working on an addon to create realistic portals that teleport light paths for cycles. Please donate if you are excited for that.